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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Clinical pathway for perioperative anemia management&#46;</p> <p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The surgical team which proposes the surgery must initiate the process &#40;1&#41; and assess the procedure&#8217;s bleeding&#47;transfusion risk &#40;2&#41;&#46; If there is no bleeding&#47;transfusion risk&#44; the standard preoperative evaluation for the procedure is ordered &#40;3&#41;&#46; If anemia is detected during the evaluation&#44; it must be investigated and treated without postponing the surgery&#46; In case of a procedure with bleeding&#47;transfusion risk&#44; laboratory tests are ordered in order to screen for and classify anemia and hematinic deficiencies &#40;iron&#44; folic acid&#44; vitamin B12&#41; &#40;4&#41;&#46; This must also be done for patients with known anemia&#44; whether or not it was caused by the disease which requires surgery &#40;chronic bleeding&#41;&#44; and in patients with additional risk factors that may increase the likelihood of bleeding &#40;e&#46;g&#46;&#44; treatment with anticoagulants or antiplatelet agents&#41;&#44; even if the surgery does not entail bleeding&#47;transfusion risk&#46; Blood collection should be done at that same visit &#40;coordination with the blood collection room&#41;&#46; In case of non-deferrable elective surgery &#40;e&#46;g&#46;&#44; colon cancer&#41;&#44; the presence of anemia may be determined in venous blood using a point-of-care device&#46; This would allow for starting empirical treatment &#40;e&#46;g&#46;&#44; IV iron administration&#41; immediately in a day hospital or anemia clinic&#46; The laboratory test results must be available to the professionals involved &#40;surgery&#47;family medicine&#47;internal medicine&#47;anesthesia&#47;hematology&#41; as soon as possible&#46; If Hb is &#8805;13&#8239;g&#47;dL &#40;5&#41;&#44; possible hematinic deficiency should be checked &#40;6&#41; in order to administer the pertinent supplements&#44; if necessary&#44; and proceed with the surgery &#40;7&#41;&#46; If Hb is &#60;13&#8239;g&#47;dL &#40;8&#41;&#44; the patient&#8217;s management will depend on the severity of the anemia and the time remaining until surgery&#58; Deferrable elective surgery &#40;9&#41;&#58; classify anemia and initiate treatment&#44; verify the treatment&#8217;s efficacy at least two weeks before surgery &#40;10&#41;&#44; consider postponing surgery until the anemia is corrected &#40;11&#41;&#59; Non-deferrable elective surgery &#40;12&#41;&#58; classify anemia and initiate treatment &#40;10&#41;&#44; proceed with surgery on the scheduled date &#40;7&#41;&#59; Urgent surgery deferrable by 24&#8211;48&#8239;h &#40;13&#41;&#58; classify anemia and initiate treatment during hospitalization &#40;10&#41;&#44; according to etiology or empirically &#40;surgeon&#44; anesthesiologist&#44; internist&#44; hematologist&#41;&#44; and proceed with surgery &#40;7&#41;&#59; Urgent or emergent surgery &#40;14&#41;&#58; collect blood samples on admission for anemia classification &#40;15&#41; and initiate treatment in the postoperative period&#46; In all cases&#44; assess the need for postoperative treatment &#40;see <a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p>"
        ]
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Preoperative anemia is prevalent and associated with an increased risk of transfusion and postoperative complications&#44; a longer hospital stay&#44; and even with higher mortality&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> In addition&#44; it may potentiate the deleterious effects of bleeding and transfusion&#46;<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> Postoperative anemia is even more common after surgery with significant blood loss and is also associated with worse clinical outcomes&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Therefore&#44; the treatment of perioperative anemia is one of the fundamental pillars of Patient Blood Management &#40;PBM&#41;&#44; a multimodal&#44; multidisciplinary&#44; patient-centered&#44; evidence-based program that improves clinical outcomes while promoting patient safety&#46;<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> Recently&#44; the World Health Organization &#40;WHO&#41; insisted on the urgency of implementing PBM on a global level&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">According to international recommendations&#44; all institutions in which surgical procedures are performed should have perioperative anemia management protocols&#46;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;11</span></a> However&#44; conceptual&#44; logistical&#44; and administrative barriers remain which hinder the widespread implementation of these protocols&#46;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">Therefore&#44; this project aimed to create a multidisciplinary consensus document that would be useful for the development and implementation of perioperative anemia management protocols which are adaptable to the characteristics of the different Spanish hospital institutions&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Methods</span><p id="par0025" class="elsevierStylePara elsevierViewall">A multidisciplinary project was proposed&#46; The project coordinator convened a multidisciplinary group of eight experienced professionals on the fields of internal medicine &#91;2&#93;&#44; anesthesiology &#91;2&#93;&#44; hematology &#91;2&#93;&#44; gynecology &#91;1&#93;&#44; and family medicine &#91;1&#93;&#46; Following a review of various clinical practice guidelines and consensus documents&#44;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;13</span></a> the coordinator created a draft of issues regarding perioperative anemia that should be addressed by the consensus panel&#46; These issues were distributed in four blocks&#58; &#40;1&#41; why and for which patients it is important&#59; &#40;2&#41; how to screen for and classify it&#59; &#40;3&#41; what treatment options are available in Spain&#59; and &#40;4&#41; how to implement a management protocol&#47;pathway &#40;algorithms&#41;&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">In the panel&#8217;s first meeting&#44; the objectives and methods of the project were presented&#44; the preliminary document created by the coordinator was discussed&#44; and the final content the project should cover was agreed upon&#46; The participants&#44; divided into four groups&#44; developed answers to each of the agreed-upon issues in the form of key points &#40;KPs&#41;&#44; including a brief justification of the answers and the bibliographic references that support them&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The KPs prepared by each group were merged into a single document and distributed to all participants for evaluation&#46; This was done using a five-point Likert scale that ranged from &#8220;strongly disagree &#91;1&#93;&#8221; to &#8220;strongly agree &#91;5&#93;&#46;&#8221; In addition to the rating&#44; panel members could include free-text comments&#46; For each KP&#44; consensus was considered to be reached if it received a score of 4 &#40;agree&#41; or 5 &#40;strongly agree&#41; from at least 7 of the 9 participants &#40;&#62;75&#37;&#41;&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">The results of the evaluation were presented and discussed at a second meeting of the panel members&#46; For the KPs on which consensus had not been reached&#44; the wording was modified based on the comments received and group discussion&#46; Then&#44; the degree of agreement on the modified KP was reevaluated using the same Likert scale&#46; The wording was also changed on some KPs on which consensus had been reached but on which there was some disagreement&#46; The algorithms corresponding to block 4 &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">Figs&#46; 1&#8211;3</a>&#41; were also presented&#44; discussed&#44; modified&#44; and approved at this meeting&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0045" class="elsevierStylePara elsevierViewall">Lastly&#44; a matrix table was created that summarized the KPs and the results of the vote &#91;participants who agree or strongly agree&#47;total participants&#93;&#44; the comments received for each of them&#44; and the KPs resulting from the second meeting&#46; With this information&#44; the coordinator prepared a draft manuscript that was circulated among all the experts for critical review&#44; further comments&#44; and approval of the final document&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">This consensus document &#40;appendix&#41; has been endorsed by the Spanish Society of Internal Medicine &#40;SEMI&#44; for its initials in Spanish&#41;&#44; the Spanish Society of Hematology and Hemotherapy &#40;SEHH&#44; for its initials in Spanish&#41;&#44; and the Ibero-American Cooperative Group on Transfusion Medicine &#40;GCIAMT&#44; for its initials in Spanish&#41;&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Results</span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Block 1&#46; Why and for which patients is perioperative anemia management important&#63;</span><p id="par0055" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">&#8226;</span><p id="par0060" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 1&#46;</span> On average&#44; preoperative anemia affects one in three surgical patients and is associated with worse postoperative clinical outcomes&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">&#8226;</span><p id="par0065" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 2&#46;</span> Postoperative anemia affects a high proportion of patients who have major surgery with significant perioperative bleeding and is also associated with worse clinical outcomes&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">&#8226;</span><p id="par0070" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 3&#46;</span> At minimum&#44; preoperative anemia should be screened for&#44; classified&#44; and treated in patients who require a surgical procedure&#44; whether elective or non-elective&#44; in which the probability of requiring packed red blood cell transfusion &#40;PRBCT&#41; is &#62;10&#37; and&#47;or in which bleeding &#62;500&#8239;mL or &#62;10&#37; of blood volume is expected &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">&#8226;</span><p id="par0075" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 4&#46;</span> Patients with known anemia or anemia caused by the condition that requires surgical treatment are also candidates for inclusion in this program&#44; even if the surgery does not entail bleeding greater than 500&#8239;mL or 10&#37; of blood volume&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">&#8226;</span><p id="par0080" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 5&#46;</span> It is debatable whether it is necessary to include patients who require a minor surgical procedure or with low bleeding risk &#40;except in patients with additional bleeding risk factors&#41; in this preoperative anemia study program&#46; However&#44; if anemia is detected in the standard preoperative evaluation&#44; it should be studied and treated while proceeding with the surgery&#44; although not necessarily in an optimization program&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">&#8226;</span><p id="par0085" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 6&#46;</span> The presence and severity of postoperative anemia must be investigated in all patients who undergo major surgery who were anemic at the time of surgery or who had moderate to severe perioperative blood loss &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0035"><span class="elsevierStyleLabel">&#8226;</span><p id="par0090" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 7&#46;</span> All institutions in which major surgical procedures are performed should have a protocol for the management of perioperative anemia and hematinic deficiencies&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li></ul></p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Block 2&#46; Definition&#44; screening&#44; and classification of perioperative anemia</span><p id="par0095" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0010"><li class="elsevierStyleListItem" id="lsti0040"><span class="elsevierStyleLabel">&#8226;</span><p id="par0100" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 8&#46;</span> For surgeries in which the likelihood of PRBCT is &#62;10&#37; and&#47;or in which bleeding &#62;500&#8239;mL or &#62;10&#37; of blood volume is expected&#44; preoperative anemia must be defined as Hb &#60;13&#8239;g&#47;dL&#44; regardless of the patient&#8217;s sex &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0045"><span class="elsevierStyleLabel">&#8226;</span><p id="par0105" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 9&#46;</span> For surgeries in which the likelihood of PRBCT is &#60;10&#37; and&#47;or bleeding &#60;500&#8239;mL or &#60;10&#37; of blood volume is expected&#44; preoperative anemia can be defined according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL in non-pregnant women and Hb &#60;13&#8239;g&#47;dL in men&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0050"><span class="elsevierStyleLabel">&#8226;</span><p id="par0110" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 10&#46;</span> Postoperative anemia can be defined according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL in non-pregnant women and Hb &#60;13&#8239;g&#47;dL in men&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0055"><span class="elsevierStyleLabel">&#8226;</span><p id="par0115" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 11&#46;</span> In all patients scheduled for surgery with a risk of bleeding and&#47;or transfusion&#44; at minimum&#44; a complete blood count with reticulocytes &#40;and reticulocyte Hb&#44; if available&#41; and determination of iron parameters &#40;iron&#44; ferritin&#44; transferrin&#44; and transferrin saturation&#41;&#44; vitamin B12&#44; folate&#44; creatinine &#40;estimated glomerular filtration rate&#41;&#44; and an inflammatory marker &#40;C-reactive protein &#91;CRP&#93;&#41; should be ordered &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0060"><span class="elsevierStyleLabel">&#8226;</span><p id="par0120" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 12&#46;</span> In elective procedures&#44; preoperative anemia screening and classification should be performed when the surgery is indicated or at least four weeks prior to the surgery&#46; However&#44; any period prior to surgery&#44; even if it is short&#44; is acceptable for screening for anemia and initiating treatment if necessary &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0065"><span class="elsevierStyleLabel">&#8226;</span><p id="par0125" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 13&#46;</span> In non-elective urgent or emergency surgery patients&#44; blood samples should be collected prior to the procedure&#8212;ideally upon admission&#8212;in order to screen for and classify anemia and initiate perioperative treatment as soon as possible &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0070"><span class="elsevierStyleLabel">&#8226;</span><p id="par0130" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 14&#46;</span> There are different forms of iron homeostasis abnormality &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#58;</p></li><li class="elsevierStyleListItem" id="lsti0075"><span class="elsevierStyleLabel">-</span><p id="par0135" class="elsevierStylePara elsevierViewall">Absolute iron deficiency&#58; Ferritin &#60;30&#8239;ng&#47;mL&#46;</p></li><li class="elsevierStyleListItem" id="lsti0080"><span class="elsevierStyleLabel">-</span><p id="par0140" class="elsevierStylePara elsevierViewall">Iron deficiency of inflammation &#40;dual disorder&#41;&#58; Ferritin &#60;100&#8239;ng&#47;mL&#44; if transferrin saturation &#40;TSAT&#41; &#60;20&#37; or reticulocyte hemoglobin &#60;28&#8239;pg and&#47;or CRP&#8239;&#62;&#8239;5&#8239;mg&#47;L&#46;</p></li><li class="elsevierStyleListItem" id="lsti0085"><span class="elsevierStyleLabel">-</span><p id="par0145" class="elsevierStylePara elsevierViewall">Functional iron deficiency or iron sequestration &#40;anemia of inflammation&#41;&#58; Ferritin &#62;100&#8239;ng&#47;mL with TSAT&#8239;&#60;&#8239;20&#37; and CRP&#8239;&#62;&#8239;5&#8239;mg&#47;L</p></li><li class="elsevierStyleListItem" id="lsti0090"><span class="elsevierStyleLabel">-</span><p id="par0150" class="elsevierStylePara elsevierViewall">Low iron stores&#58; Ferritin 30&#8211;100&#8239;ng&#47;mL and TSAT&#8239;&#62;&#8239;20&#37;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0095"><span class="elsevierStyleLabel">&#8226;</span><p id="par0155" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 15&#46;</span> It is generally accepted that a serum vitamin B12 concentration &#62;270&#8239;pg&#47;mL and serum folic acid &#62;3&#8211;5&#8239;ng&#47;mL &#40;depending on the laboratory&#41; rules out deficiency of these maturation factors&#44; but additional laboratory tests may be needed to confirm this &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0100"><span class="elsevierStyleLabel">&#8226;</span><p id="par0160" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 16&#46;</span> The routine determination of baseline erythropoietin &#40;Epo&#41; levels in preoperative anemia screening is not considered cost-effective&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0105"><span class="elsevierStyleLabel">&#8226;</span><p id="par0165" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 17&#46;</span> The patient should be referred for the study and treatment of anemia when it is not justified by the condition which led to the surgical procedure indication&#44; especially in cases of iron deficiency&#44; renal failure&#44; anemia of inflammation or of unknown origin&#44; macrocytic anemia not justified by liver disease and&#47;or B12&#47;folate deficiency&#44; or any other anemia accompanied by another cytopenia&#46; Studying these anemias in a quick-resolution consultation is a priority in order to minimize the possible delay in surgery&#46; <span class="elsevierStyleBold">&#91;7&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0110"><span class="elsevierStyleLabel">&#8226;</span><p id="par0170" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 18&#46;</span> After major surgery with significant perioperative bleeding&#44; at least one Hb determination in the first 24&#8239;h is required&#46; In stable patients&#44; it is advisable to perform another determination on the third or fourth day after surgery &#40;when the Hb nadir is reached&#41; in order to screen for the presence of anemia and its severity as well as to initiate treatment&#44; if necessary &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46; In patients with persistent postoperative bleeding&#44; daily Hb monitoring is justified&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0115"><span class="elsevierStyleLabel">&#8226;</span><p id="par0175" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 19</span>&#46; During postoperative hospitalization&#44; if iron deficiency is suspected and preoperative data are not available&#44; iron deficiency should be defined as ferritin &#60;100&#8239;ng&#47;mL or ferritin &#60;300&#8239;ng&#47;mL and transferrin saturation &#60;20&#37;&#44; but additional laboratory tests may be needed for confirmation&#44; such as a reticulocyte hemoglobin &#60;28&#8239;pg &#40;or equivalent parameters&#41; or a ferritin ratio &#40;log ferritin&#47;soluble transferrin receptor&#41; &#62;2&#44; if available&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li></ul></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Block 3&#46; Treatment options for perioperative anemia</span><p id="par0180" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0015"><li class="elsevierStyleListItem" id="lsti0120"><span class="elsevierStyleLabel">&#8226;</span><p id="par0185" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 20&#46;</span> The iron content of food is unlikely to be enough to correct anemia and replenish iron stores in a patient with iron deficiency anemia &#40;IDA&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0125"><span class="elsevierStyleLabel">&#8226;</span><p id="par0190" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 21&#46;</span> Provided there is adequate tolerance and enough time &#40;ideally six to eight weeks&#41;&#44; oral iron salts administration can be useful for the preoperative treatment of iron deficiency and mild to moderate iron deficiency anemia &#40;IDA&#41; IDA as well as to replenish low iron stores &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0130"><span class="elsevierStyleLabel">&#8226;</span><p id="par0195" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 22&#46;</span> Oral iron salts must be administered at low doses &#40;40&#8211;50&#8239;mg of elemental iron&#41; once daily or at moderate doses &#40;80&#8211;100&#8239;mg of elemental iron&#41; every other day in order to maximize absorption and improve tolerance and treatment adherence&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0135"><span class="elsevierStyleLabel">&#8226;</span><p id="par0200" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 23&#46;</span> After major surgery&#44; the release of hepcidin induced by the inflammatory response to surgical aggression drastically decreases the absorption of oral iron salts&#44; limiting their bioavailability and increasing their adverse gastrointestinal effects&#46; Therefore&#44; the administration of oral iron salts in the immediate postoperative period is generally not recommended&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0140"><span class="elsevierStyleLabel">&#8226;</span><p id="par0205" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 24&#46;</span> The absorption of oral sucrosomial&#174; iron is mostly independent of hepcidin&#46; The available evidence suggests the efficacy of its administration for treating IDA and perioperative iron deficiency in different surgeries &#40;cardiac&#44; vascular&#44; orthopedic&#44; bariatric&#44; gynecological&#41;&#44; but further studies are needed&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a><span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0145"><span class="elsevierStyleLabel">&#8226;</span><p id="par0210" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 25&#46;</span> If the efficacy of oral sucrosomial&#174; iron administration is confirmed&#44; this could be the treatment of choice&#44; especially in cases of refractoriness&#47;intolerance to oral iron salts&#46; It could be started early from primary care departments&#44; which could reduce the prevalence of anemia and intravenous iron &#40;FeIV&#41; requirements in the days prior to elective surgery&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0150"><span class="elsevierStyleLabel">&#8226;</span><p id="par0215" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 26&#46;</span> FeIV is a safe and effective alternative to oral iron for treating perioperative iron deficiency and IDA&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> It should preferably be used in anemic patients who&#58;</p></li><li class="elsevierStyleListItem" id="lsti0155"><span class="elsevierStyleLabel">-</span><p id="par0220" class="elsevierStylePara elsevierViewall">Have intolerance or a contraindication to oral iron&#44; inflammation&#44; moderate to severe anemia&#44; or persistent bleeding&#46;</p></li><li class="elsevierStyleListItem" id="lsti0160"><span class="elsevierStyleLabel">-</span><p id="par0225" class="elsevierStylePara elsevierViewall">Are expected to have moderate to high perioperative blood loss &#40;&#62;500&#8239;mL or &#62;10&#37; of blood volume&#41;&#46;</p></li><li class="elsevierStyleListItem" id="lsti0165"><span class="elsevierStyleLabel">-</span><p id="par0230" class="elsevierStylePara elsevierViewall">Receive erythropoiesis-stimulating agents &#40;ESAs&#41;</p></li><li class="elsevierStyleListItem" id="lsti0170"><span class="elsevierStyleLabel">-</span><p id="par0235" class="elsevierStylePara elsevierViewall">Have little time before major surgery &#40;&#8804;4 weeks&#41; or have developed moderate or severe postoperative anemia&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0175"><span class="elsevierStyleLabel">&#8226;</span><p id="par0240" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 27&#46;</span> The timing of administration&#44; the severity of the anemia&#44; the underlying disease&#44; and perhaps the FeIV formulation used &#40;high dose vs&#46; low dose&#41; influence treatment response&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0180"><span class="elsevierStyleLabel">&#8226;</span><p id="par0245" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 28&#46;</span> Although they are becoming increasingly safe&#44; FeIV formulations are more expensive than oral iron formulations and entail the need for venous access &#40;adverse effects at the injection site may occur&#41; and infusion monitoring &#40;a risk of infusion reactions &#91;relatively frequent&#93; and hypersensitivity &#91;rare&#93; remains&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0185"><span class="elsevierStyleLabel">&#8226;</span><p id="par0250" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 29&#46;</span> FeIV formulations that allow for administration of high doses &#40;1000&#8211;1500&#8239;mg&#41; in a single infusion &#40;15&#8211;30&#8239;min&#41; can facilitate treatment and be cost-effective&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0190"><span class="elsevierStyleLabel">&#8226;</span><p id="par0255" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 30&#46;</span> ESAs have a role in the treatment of anemia in surgical patients in whom substantial blood loss is anticipated&#44; especially those with anemia of inflammation&#44; who have little time for optimization prior to surgery and in those who decline packed red blood cell transfusion &#40;PRBCT&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#44;8&#44;11</span></a> Coadjuvant treatment with IV iron is advised in order to increase the efficacy of ESAs and reduce the risk of thrombocytosis&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0195"><span class="elsevierStyleLabel">&#8226;</span><p id="par0260" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 31&#46;</span> All patients with a documented vitamin B12 and&#47;or folate deficiency must be treated&#46; The route of administration &#40;oral or parenteral&#41; and regimen &#40;dose and frequency&#41; will depend on the cause and severity of the deficiency and the associated symptoms&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0200"><span class="elsevierStyleLabel">&#8226;</span><p id="par0265" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 32&#46;</span> Prophylactic supplementation with oral folic acid &#40;5&#8239;mg&#47;day until surgery&#41; and parenteral vitamin B12 &#40;1&#8239;mg dose&#41; may be useful in meeting the demands of increased erythropoietic activity during the treatment of moderate-severe anemia&#44; especially in patients at risk of deficiencies of these maturational factors and&#47;or those who receive ESAs&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a><span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0205"><span class="elsevierStyleLabel">&#8226;</span><p id="par0270" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 33&#46;</span> PRBCT would be indicated for the treatment of severe anemia in patients with hemodynamic instability&#44; risk criteria&#44; and&#47;or alarm symptoms&#46; Although it is a useful measure in these cases&#44; it is a limited therapeutic resource of transitory efficacy and is not without complications&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0210"><span class="elsevierStyleLabel">&#8226;</span><p id="par0275" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 34&#46;</span> A restrictive strategy for PRBCT &#40;if hemoglobin concentration &#60;7&#8211;8&#8239;g&#47;dL and&#47;or presence of signs or symptoms of acute anemia&#41; has been shown to be at least as effective as a liberal strategy &#40;if Hb &#60;9&#8211;10&#8239;g&#47;dL&#41; in most inpatient studies&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0215"><span class="elsevierStyleLabel">&#8226;</span><p id="par0280" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 35&#46;</span> The use of &#8220;restrictive&#8221; criteria for PRBCT has been shown to be safe in most populations studied except in patients with acute cardiac ischemia or those who have undergone oncologic abdominal surgery&#59; no conclusive data are available on these patients&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0220"><span class="elsevierStyleLabel">&#8226;</span><p id="par0285" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 36&#46;</span> In most hemodynamically stable patients in whom PRBCT is considered&#44; the administration of a single unit may be a valid option&#46; It should be remembered that the transfusion of each PRBC unit is a separate clinical decision&#44; which makes it necessary to reevaluate the patient before prescribing the next one&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li></ul></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Discussion</span><p id="par0290" class="elsevierStylePara elsevierViewall">Adequate management of perioperative anemia is one of the fundamental pillars of PBM&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;5</span></a> There are consensus documents and clinical practice guidelines developed by national and international working groups and&#47;or scientific societies that recommend a systematic approach to treating preoperative anemia&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#8211;11&#44;13</span></a> Regarding postoperative anemia&#44; most recommend the use of a restrictive threshold for PRBCT in treating severe anemia&#44; but recommendations on pharmacological treatment are scarce or non-existent&#46; This leads to variability in clinical practice&#46;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;11&#44;13</span></a></p><p id="par0295" class="elsevierStylePara elsevierViewall">Based on the scientific evidence and their clinical experience&#44; this multidisciplinary panel of professionals reached a consensus on the most important epidemiological&#44; etiological&#44; diagnostic&#44; and treatment aspects related to perioperative anemia and its comprehensive management &#40;presented as KPs&#41;&#46; Based on the 36 KPs that were agreed upon&#8212;most of them unanimously&#8212;a pragmatic&#44; clear&#44; easy-to-follow clinical pathway was developed through algorithms &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">Figs&#46; 1&#8211;3</a>&#41; for the diagnosis and treatment of perioperative anemia and hematinic deficiencies in order to improve the clinical progress and functional recovery of surgical patients and to do so in a cost-effective manner&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a></p><p id="par0300" class="elsevierStylePara elsevierViewall">To achieve this objective&#44; close collaboration among the main departments involved &#40;surgery&#44; anesthesiology&#44; hematology&#44; internal medicine&#44; family medicine&#41; is essential in order to ensure continuity of care throughout the entire process&#44; from the indication for surgery to postoperative recovery&#46; In addition&#44; it would be ideal to establish a multidisciplinary preoperative care clinic&#44; such as those proposed by the Centre for Preoperative Care in the United Kingdom &#40;<a href="https://cpoc.org.uk">https&#58;&#47;&#47;cpoc&#46;org&#46;uk</a>&#41; or the Clinical Pathway for Intensified Recovery in Adult Surgery in Spain<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> in order to develop a personalized care plan to optimize not only erythropoiesis&#44; but also the patient&#8217;s overall health status&#46; This care would continue during surgery and post-anesthesia recovery &#40;surgery&#44; anesthesia&#41;&#44; the hospital stay on the ward &#40;ideally in a multidisciplinary manner in shared-care programs&#58; internal medicine&#44; hematology&#41;&#44; and after hospital discharge &#40;family medicine&#41;&#46;</p><p id="par0305" class="elsevierStylePara elsevierViewall">In summary&#44; this consensus document not only analyzes why&#44; for whom&#44; with what&#44; and when to treat perioperative anemia&#44; but also provides a clinical pathway on how to screen for&#44; classify&#44; and treat it based on the type of surgery&#46; Therefore&#44; it is hoped that it will be a useful tool for the development and implementation of early identification and appropriate management programs that are adapted to the available resources and particular characteristics of the different hospital institutions in Spain&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Previous presentations</span><p id="par0310" class="elsevierStylePara elsevierViewall">Communication presented at the 44th National Congress of the Spanish Society of Internal Medicine&#46; Valencia&#44; Spain&#46; November 15&#8211;17&#44; 2023&#46; Award for the best type A poster&#46;</p></span></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Funding</span><p id="par0315" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleGrantSponsor" id="gs0005">Zambon S&#46;A&#46;U&#46;</span> made an unconditional financial contribution for the logistical coordination of the consensus&#46; The conception&#44; methodology&#44; interpretation of existing evidence&#44; development of the key points&#44; and the final content of the consensus were carried out by the authors&#46; Zambon S&#46;A&#46;U&#46; did not participate in panel meetings&#44; in the development of the key points or algorithms&#44; or in the final version of this document&#46;</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Conflicts of interest</span><p id="par0320" class="elsevierStylePara elsevierViewall">Manuel Mu&#241;oz has received remuneration for conferences and&#47;or consulting from Pharmacosmos &#40;Denmark&#41;&#44; PharmaNutra &#40;Italy&#41;&#44; and Zambon &#40;Spain&#41;&#46;</p><p id="par0325" class="elsevierStylePara elsevierViewall">Sonsoles Arag&#243;n indicates that this work was supported by Zambon S&#46;A&#46;U&#46; laboratories through a service agreement with Sonsoles Arag&#243;n Alvarez with financial remuneration for data collection and analysis of the current scientific evidence related to the consensus&#8217; objective&#46; The funders had no role in the study design&#59; in data collection&#44; analysis&#44; or interpretation&#59; or in the drafting of the manuscript&#46;</p><p id="par0330" class="elsevierStylePara elsevierViewall">M&#243;nica Ballesteros has received support from Zambon S&#46;A&#46;U&#46; for her participation in this work&#46;</p><p id="par0335" class="elsevierStylePara elsevierViewall">Elvira Bisbe-Vives has given conferences and courses for CSL Vifor&#44; CSL Behring&#44; Sysmex&#44; and Baxter&#46; The MAPBM project received an &#8220;Unrestricted Grant&#8221; through the IMIM Research Center from CSL Vifor&#44; Baxter&#44; and Sysmex&#46;</p><p id="par0340" class="elsevierStylePara elsevierViewall">Carlos Jeric&#243; has received remuneration for conferences&#44; consulting meetings&#44; educational events&#44; and support for attending meetings from Bial&#44; Vifor Pharma&#44; and Zambon&#46;</p><p id="par0345" class="elsevierStylePara elsevierViewall">Pilar Llamas-Sillero has given conferences for AstraZeneca&#44; Boehringer Ingelheim&#44; Bristol-Myers Squibb&#44; and Novartis&#46;</p><p id="par0350" class="elsevierStylePara elsevierViewall">H&#233;ctor Manuel Meijide-M&#237;guez has received remuneration from Zambon for participating as part of the Expert Advisory Committee for this consensus document&#46;</p><p id="par0355" class="elsevierStylePara elsevierViewall">Elisabet Ray&#243;-Martin has collaborated as an author of the consensus funded by Zambon&#46;</p><p id="par0360" class="elsevierStylePara elsevierViewall">Mar&#237;a Jos&#233; Rodr&#237;guez-Su&#225;rez has received remuneration from Zambon&#46;</p></span></span>"
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        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Perioperative anemia is an independent risk factor for postoperative morbidity and mortality&#46; However&#44; conceptual&#44; logistical and administrative barriers persist that hinder the widespread implementation of protocols for their management&#46; The project coordinator convened a multidisciplinary group of 8 experienced professionals to develop perioperative anemia management algorithms&#44; based on a series of key points &#40;KPs&#41; related to its prevalence&#44; consequences&#44; diagnosis and treatment&#46; These KPs were assessed using a 5-point Likert scale&#44; from &#34;strongly disagree &#91;1&#93;&#34; to &#34;strongly agree &#91;5&#93;&#34;&#46; For each KP&#44; consensus was reached when receiving a score of 4 or 5 from at least 7 participants &#40;&#62;75&#37;&#41;&#46; Based on the 36 KPs agreed upon&#44; diagnostic-therapeutic algorithms were developed that we believe can facilitate the implementation of programs for early identification and adequate management of perioperative anemia&#44; adapted to the characteristics of the different institutions in our country&#46;</p></span>"
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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Clinical pathway for perioperative anemia management&#46;</p> <p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The surgical team which proposes the surgery must initiate the process &#40;1&#41; and assess the procedure&#8217;s bleeding&#47;transfusion risk &#40;2&#41;&#46; If there is no bleeding&#47;transfusion risk&#44; the standard preoperative evaluation for the procedure is ordered &#40;3&#41;&#46; If anemia is detected during the evaluation&#44; it must be investigated and treated without postponing the surgery&#46; In case of a procedure with bleeding&#47;transfusion risk&#44; laboratory tests are ordered in order to screen for and classify anemia and hematinic deficiencies &#40;iron&#44; folic acid&#44; vitamin B12&#41; &#40;4&#41;&#46; This must also be done for patients with known anemia&#44; whether or not it was caused by the disease which requires surgery &#40;chronic bleeding&#41;&#44; and in patients with additional risk factors that may increase the likelihood of bleeding &#40;e&#46;g&#46;&#44; treatment with anticoagulants or antiplatelet agents&#41;&#44; even if the surgery does not entail bleeding&#47;transfusion risk&#46; Blood collection should be done at that same visit &#40;coordination with the blood collection room&#41;&#46; In case of non-deferrable elective surgery &#40;e&#46;g&#46;&#44; colon cancer&#41;&#44; the presence of anemia may be determined in venous blood using a point-of-care device&#46; This would allow for starting empirical treatment &#40;e&#46;g&#46;&#44; IV iron administration&#41; immediately in a day hospital or anemia clinic&#46; The laboratory test results must be available to the professionals involved &#40;surgery&#47;family medicine&#47;internal medicine&#47;anesthesia&#47;hematology&#41; as soon as possible&#46; If Hb is &#8805;13&#8239;g&#47;dL &#40;5&#41;&#44; possible hematinic deficiency should be checked &#40;6&#41; in order to administer the pertinent supplements&#44; if necessary&#44; and proceed with the surgery &#40;7&#41;&#46; If Hb is &#60;13&#8239;g&#47;dL &#40;8&#41;&#44; the patient&#8217;s management will depend on the severity of the anemia and the time remaining until surgery&#58; Deferrable elective surgery &#40;9&#41;&#58; classify anemia and initiate treatment&#44; verify the treatment&#8217;s efficacy at least two weeks before surgery &#40;10&#41;&#44; consider postponing surgery until the anemia is corrected &#40;11&#41;&#59; Non-deferrable elective surgery &#40;12&#41;&#58; classify anemia and initiate treatment &#40;10&#41;&#44; proceed with surgery on the scheduled date &#40;7&#41;&#59; Urgent surgery deferrable by 24&#8211;48&#8239;h &#40;13&#41;&#58; classify anemia and initiate treatment during hospitalization &#40;10&#41;&#44; according to etiology or empirically &#40;surgeon&#44; anesthesiologist&#44; internist&#44; hematologist&#41;&#44; and proceed with surgery &#40;7&#41;&#59; Urgent or emergent surgery &#40;14&#41;&#58; collect blood samples on admission for anemia classification &#40;15&#41; and initiate treatment in the postoperative period&#46; In all cases&#44; assess the need for postoperative treatment &#40;see <a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p>"
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          "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Diagnostic and treatment algorithm for preoperative anemia&#46;</p> <p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">ESA&#58; erythropoiesis-stimulating agent&#59; UA&#58; unexplained anemia&#59; Hb&#58; hemoglobin&#59; CHr&#58; reticulocyte Hb content&#59; IV iron&#58; intravenous iron &#40;preferably formulations that allow for the rapid administration of high doses&#41;&#59; CRP&#58; C-reactive protein&#59; Tf&#58; transferrin&#46; &#42;Conventional oral iron or sucrosomial iron&#59; &#42;&#42;IV iron&#44; intravenous iron &#40;preferably formulations that allow for the rapid administration of high doses&#41; or sucrosomial iron &#40;if there is enough time before surgery&#44; especially if there are difficulties in implementing the logistics of IV iron administration&#41;&#59; &#42;&#42;&#42;In most cases&#44; treatment will be the administration of an ESA&#46;</p>"
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          "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Diagnostic and treatment algorithm for postoperative anemia&#46;</p> <p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Whenever possible&#44; assess iron status within the first 24&#8239;h postoperatively if it was not already assessed in the preoperative evaluation &#40;1&#41;&#46; In patients without postoperative bleeding&#44; monitor hemoglobin at 24 and 72&#8211;96&#8239;h after the procedure &#40;1&#41;&#46; Assess the presence and severity of anemia according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL for women&#44; Hb &#60;13&#8239;g&#47;dL for men &#40;2&#41;&#46; Postoperative iron deficiency is defined by ferritin &#60;100&#8239;ng&#47;mL&#44; ferritin &#60;300&#8239;ng&#47;mL&#44; and transferrin saturation &#60;20&#37; or reticulocyte hemoglobin &#60;28&#8239;pg &#40;3&#41;&#46; If there is no iron deficiency&#44; consider other causes &#40;4&#41;&#46; Consider iron therapy &#40;6&#41;&#44; preferably IV in cases of mild or moderate anemia with iron deficiency &#40;3&#41; or Hb &#60;10&#8239;g&#47;dL due to preoperative anemia or abundant surgical bleeding&#44; regardless of iron status &#40;5&#41;&#46; In patients with severe postoperative anemia or who decline transfusion&#44; consider adding an ESA to IV iron therapy&#44; although there is little evidence on its use in this context and it must be assessed on a case-by-case basis&#46; In patients with severe symptomatic anemia&#44; consider packed red blood cell transfusion &#40;PRBCT&#41; if the patient consents&#46; Transfuse one unit at a time&#44; with reevaluation of additional needs &#40;7&#41;&#46; Consider administering IV iron supplements or sucrosomial iron after transfusion&#44; using the post-transfusion hemoglobin in order to calculate the total iron deficiency &#40;6&#41;&#46; Follow-up on the patient after hospital discharge &#40;8&#41;&#46;</p>"
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Consensus Document
Executive summary of the consensus document on the management of perioperative anemia in Spain
Resumen ejecutivo del documento de consenso sobre el manejo de la anemia perioperatoria en España
M. Muñoza,
Corresponding author
mmunoz@uma.es

Corresponding author.
, S. Aragónb, M. Ballesterosc, E. Bisbe-Vivesd, C. Jericóe, P. Llamas-Sillerof, H.M. Meijide-Míguezg, E. Rayó-Martinh, M.J. Rodríguez-Suárezi
a Departamento de Especialidades Quirúrgicas, Bioquímica e Inmunología. Facultad de Medicina, Universidad de Málaga, Málaga, Spain
b Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital de la Ribera, Valencia, Spain
c Servicio de Hematología y Hemoterapia, H.G.U. Gregorio Marañón, Madrid, Spain
d Servicio de Anestesiología, Hospital del Mar, Barcelona, Spain
e Servicio de Medicina Interna, Complex Hospitalari Moisès Broggi, Barcelona, Spain
f Servicio de Hematología y Hemoterapia, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma de Madrid, Madrid, Spain
g Servicio de Medicina Interna, Hospital Quironsalud A Coruña, Grupo de Trabajo de Asistencia Compartida y Medicina Consultiva (SEMI), A Coruña, Spain
h Medicina de familia, EAP SARDENYA, Barcelona, Spain
i Servicio de Ginecología y Obstetricia, Hospital Universitario Central de Asturias, Oviedo, Spain
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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Clinical pathway for perioperative anemia management&#46;</p> <p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The surgical team which proposes the surgery must initiate the process &#40;1&#41; and assess the procedure&#8217;s bleeding&#47;transfusion risk &#40;2&#41;&#46; If there is no bleeding&#47;transfusion risk&#44; the standard preoperative evaluation for the procedure is ordered &#40;3&#41;&#46; If anemia is detected during the evaluation&#44; it must be investigated and treated without postponing the surgery&#46; In case of a procedure with bleeding&#47;transfusion risk&#44; laboratory tests are ordered in order to screen for and classify anemia and hematinic deficiencies &#40;iron&#44; folic acid&#44; vitamin B12&#41; &#40;4&#41;&#46; This must also be done for patients with known anemia&#44; whether or not it was caused by the disease which requires surgery &#40;chronic bleeding&#41;&#44; and in patients with additional risk factors that may increase the likelihood of bleeding &#40;e&#46;g&#46;&#44; treatment with anticoagulants or antiplatelet agents&#41;&#44; even if the surgery does not entail bleeding&#47;transfusion risk&#46; Blood collection should be done at that same visit &#40;coordination with the blood collection room&#41;&#46; In case of non-deferrable elective surgery &#40;e&#46;g&#46;&#44; colon cancer&#41;&#44; the presence of anemia may be determined in venous blood using a point-of-care device&#46; This would allow for starting empirical treatment &#40;e&#46;g&#46;&#44; IV iron administration&#41; immediately in a day hospital or anemia clinic&#46; The laboratory test results must be available to the professionals involved &#40;surgery&#47;family medicine&#47;internal medicine&#47;anesthesia&#47;hematology&#41; as soon as possible&#46; If Hb is &#8805;13&#8239;g&#47;dL &#40;5&#41;&#44; possible hematinic deficiency should be checked &#40;6&#41; in order to administer the pertinent supplements&#44; if necessary&#44; and proceed with the surgery &#40;7&#41;&#46; If Hb is &#60;13&#8239;g&#47;dL &#40;8&#41;&#44; the patient&#8217;s management will depend on the severity of the anemia and the time remaining until surgery&#58; Deferrable elective surgery &#40;9&#41;&#58; classify anemia and initiate treatment&#44; verify the treatment&#8217;s efficacy at least two weeks before surgery &#40;10&#41;&#44; consider postponing surgery until the anemia is corrected &#40;11&#41;&#59; Non-deferrable elective surgery &#40;12&#41;&#58; classify anemia and initiate treatment &#40;10&#41;&#44; proceed with surgery on the scheduled date &#40;7&#41;&#59; Urgent surgery deferrable by 24&#8211;48&#8239;h &#40;13&#41;&#58; classify anemia and initiate treatment during hospitalization &#40;10&#41;&#44; according to etiology or empirically &#40;surgeon&#44; anesthesiologist&#44; internist&#44; hematologist&#41;&#44; and proceed with surgery &#40;7&#41;&#59; Urgent or emergent surgery &#40;14&#41;&#58; collect blood samples on admission for anemia classification &#40;15&#41; and initiate treatment in the postoperative period&#46; In all cases&#44; assess the need for postoperative treatment &#40;see <a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Preoperative anemia is prevalent and associated with an increased risk of transfusion and postoperative complications&#44; a longer hospital stay&#44; and even with higher mortality&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> In addition&#44; it may potentiate the deleterious effects of bleeding and transfusion&#46;<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> Postoperative anemia is even more common after surgery with significant blood loss and is also associated with worse clinical outcomes&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Therefore&#44; the treatment of perioperative anemia is one of the fundamental pillars of Patient Blood Management &#40;PBM&#41;&#44; a multimodal&#44; multidisciplinary&#44; patient-centered&#44; evidence-based program that improves clinical outcomes while promoting patient safety&#46;<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> Recently&#44; the World Health Organization &#40;WHO&#41; insisted on the urgency of implementing PBM on a global level&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">According to international recommendations&#44; all institutions in which surgical procedures are performed should have perioperative anemia management protocols&#46;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;11</span></a> However&#44; conceptual&#44; logistical&#44; and administrative barriers remain which hinder the widespread implementation of these protocols&#46;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">Therefore&#44; this project aimed to create a multidisciplinary consensus document that would be useful for the development and implementation of perioperative anemia management protocols which are adaptable to the characteristics of the different Spanish hospital institutions&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Methods</span><p id="par0025" class="elsevierStylePara elsevierViewall">A multidisciplinary project was proposed&#46; The project coordinator convened a multidisciplinary group of eight experienced professionals on the fields of internal medicine &#91;2&#93;&#44; anesthesiology &#91;2&#93;&#44; hematology &#91;2&#93;&#44; gynecology &#91;1&#93;&#44; and family medicine &#91;1&#93;&#46; Following a review of various clinical practice guidelines and consensus documents&#44;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;13</span></a> the coordinator created a draft of issues regarding perioperative anemia that should be addressed by the consensus panel&#46; These issues were distributed in four blocks&#58; &#40;1&#41; why and for which patients it is important&#59; &#40;2&#41; how to screen for and classify it&#59; &#40;3&#41; what treatment options are available in Spain&#59; and &#40;4&#41; how to implement a management protocol&#47;pathway &#40;algorithms&#41;&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">In the panel&#8217;s first meeting&#44; the objectives and methods of the project were presented&#44; the preliminary document created by the coordinator was discussed&#44; and the final content the project should cover was agreed upon&#46; The participants&#44; divided into four groups&#44; developed answers to each of the agreed-upon issues in the form of key points &#40;KPs&#41;&#44; including a brief justification of the answers and the bibliographic references that support them&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The KPs prepared by each group were merged into a single document and distributed to all participants for evaluation&#46; This was done using a five-point Likert scale that ranged from &#8220;strongly disagree &#91;1&#93;&#8221; to &#8220;strongly agree &#91;5&#93;&#46;&#8221; In addition to the rating&#44; panel members could include free-text comments&#46; For each KP&#44; consensus was considered to be reached if it received a score of 4 &#40;agree&#41; or 5 &#40;strongly agree&#41; from at least 7 of the 9 participants &#40;&#62;75&#37;&#41;&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">The results of the evaluation were presented and discussed at a second meeting of the panel members&#46; For the KPs on which consensus had not been reached&#44; the wording was modified based on the comments received and group discussion&#46; Then&#44; the degree of agreement on the modified KP was reevaluated using the same Likert scale&#46; The wording was also changed on some KPs on which consensus had been reached but on which there was some disagreement&#46; The algorithms corresponding to block 4 &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">Figs&#46; 1&#8211;3</a>&#41; were also presented&#44; discussed&#44; modified&#44; and approved at this meeting&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0045" class="elsevierStylePara elsevierViewall">Lastly&#44; a matrix table was created that summarized the KPs and the results of the vote &#91;participants who agree or strongly agree&#47;total participants&#93;&#44; the comments received for each of them&#44; and the KPs resulting from the second meeting&#46; With this information&#44; the coordinator prepared a draft manuscript that was circulated among all the experts for critical review&#44; further comments&#44; and approval of the final document&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">This consensus document &#40;appendix&#41; has been endorsed by the Spanish Society of Internal Medicine &#40;SEMI&#44; for its initials in Spanish&#41;&#44; the Spanish Society of Hematology and Hemotherapy &#40;SEHH&#44; for its initials in Spanish&#41;&#44; and the Ibero-American Cooperative Group on Transfusion Medicine &#40;GCIAMT&#44; for its initials in Spanish&#41;&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Results</span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Block 1&#46; Why and for which patients is perioperative anemia management important&#63;</span><p id="par0055" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">&#8226;</span><p id="par0060" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 1&#46;</span> On average&#44; preoperative anemia affects one in three surgical patients and is associated with worse postoperative clinical outcomes&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">&#8226;</span><p id="par0065" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 2&#46;</span> Postoperative anemia affects a high proportion of patients who have major surgery with significant perioperative bleeding and is also associated with worse clinical outcomes&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">&#8226;</span><p id="par0070" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 3&#46;</span> At minimum&#44; preoperative anemia should be screened for&#44; classified&#44; and treated in patients who require a surgical procedure&#44; whether elective or non-elective&#44; in which the probability of requiring packed red blood cell transfusion &#40;PRBCT&#41; is &#62;10&#37; and&#47;or in which bleeding &#62;500&#8239;mL or &#62;10&#37; of blood volume is expected &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">&#8226;</span><p id="par0075" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 4&#46;</span> Patients with known anemia or anemia caused by the condition that requires surgical treatment are also candidates for inclusion in this program&#44; even if the surgery does not entail bleeding greater than 500&#8239;mL or 10&#37; of blood volume&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">&#8226;</span><p id="par0080" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 5&#46;</span> It is debatable whether it is necessary to include patients who require a minor surgical procedure or with low bleeding risk &#40;except in patients with additional bleeding risk factors&#41; in this preoperative anemia study program&#46; However&#44; if anemia is detected in the standard preoperative evaluation&#44; it should be studied and treated while proceeding with the surgery&#44; although not necessarily in an optimization program&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">&#8226;</span><p id="par0085" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 6&#46;</span> The presence and severity of postoperative anemia must be investigated in all patients who undergo major surgery who were anemic at the time of surgery or who had moderate to severe perioperative blood loss &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0035"><span class="elsevierStyleLabel">&#8226;</span><p id="par0090" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 7&#46;</span> All institutions in which major surgical procedures are performed should have a protocol for the management of perioperative anemia and hematinic deficiencies&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li></ul></p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Block 2&#46; Definition&#44; screening&#44; and classification of perioperative anemia</span><p id="par0095" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0010"><li class="elsevierStyleListItem" id="lsti0040"><span class="elsevierStyleLabel">&#8226;</span><p id="par0100" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 8&#46;</span> For surgeries in which the likelihood of PRBCT is &#62;10&#37; and&#47;or in which bleeding &#62;500&#8239;mL or &#62;10&#37; of blood volume is expected&#44; preoperative anemia must be defined as Hb &#60;13&#8239;g&#47;dL&#44; regardless of the patient&#8217;s sex &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0045"><span class="elsevierStyleLabel">&#8226;</span><p id="par0105" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 9&#46;</span> For surgeries in which the likelihood of PRBCT is &#60;10&#37; and&#47;or bleeding &#60;500&#8239;mL or &#60;10&#37; of blood volume is expected&#44; preoperative anemia can be defined according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL in non-pregnant women and Hb &#60;13&#8239;g&#47;dL in men&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0050"><span class="elsevierStyleLabel">&#8226;</span><p id="par0110" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 10&#46;</span> Postoperative anemia can be defined according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL in non-pregnant women and Hb &#60;13&#8239;g&#47;dL in men&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0055"><span class="elsevierStyleLabel">&#8226;</span><p id="par0115" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 11&#46;</span> In all patients scheduled for surgery with a risk of bleeding and&#47;or transfusion&#44; at minimum&#44; a complete blood count with reticulocytes &#40;and reticulocyte Hb&#44; if available&#41; and determination of iron parameters &#40;iron&#44; ferritin&#44; transferrin&#44; and transferrin saturation&#41;&#44; vitamin B12&#44; folate&#44; creatinine &#40;estimated glomerular filtration rate&#41;&#44; and an inflammatory marker &#40;C-reactive protein &#91;CRP&#93;&#41; should be ordered &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0060"><span class="elsevierStyleLabel">&#8226;</span><p id="par0120" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 12&#46;</span> In elective procedures&#44; preoperative anemia screening and classification should be performed when the surgery is indicated or at least four weeks prior to the surgery&#46; However&#44; any period prior to surgery&#44; even if it is short&#44; is acceptable for screening for anemia and initiating treatment if necessary &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0065"><span class="elsevierStyleLabel">&#8226;</span><p id="par0125" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 13&#46;</span> In non-elective urgent or emergency surgery patients&#44; blood samples should be collected prior to the procedure&#8212;ideally upon admission&#8212;in order to screen for and classify anemia and initiate perioperative treatment as soon as possible &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0070"><span class="elsevierStyleLabel">&#8226;</span><p id="par0130" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 14&#46;</span> There are different forms of iron homeostasis abnormality &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#58;</p></li><li class="elsevierStyleListItem" id="lsti0075"><span class="elsevierStyleLabel">-</span><p id="par0135" class="elsevierStylePara elsevierViewall">Absolute iron deficiency&#58; Ferritin &#60;30&#8239;ng&#47;mL&#46;</p></li><li class="elsevierStyleListItem" id="lsti0080"><span class="elsevierStyleLabel">-</span><p id="par0140" class="elsevierStylePara elsevierViewall">Iron deficiency of inflammation &#40;dual disorder&#41;&#58; Ferritin &#60;100&#8239;ng&#47;mL&#44; if transferrin saturation &#40;TSAT&#41; &#60;20&#37; or reticulocyte hemoglobin &#60;28&#8239;pg and&#47;or CRP&#8239;&#62;&#8239;5&#8239;mg&#47;L&#46;</p></li><li class="elsevierStyleListItem" id="lsti0085"><span class="elsevierStyleLabel">-</span><p id="par0145" class="elsevierStylePara elsevierViewall">Functional iron deficiency or iron sequestration &#40;anemia of inflammation&#41;&#58; Ferritin &#62;100&#8239;ng&#47;mL with TSAT&#8239;&#60;&#8239;20&#37; and CRP&#8239;&#62;&#8239;5&#8239;mg&#47;L</p></li><li class="elsevierStyleListItem" id="lsti0090"><span class="elsevierStyleLabel">-</span><p id="par0150" class="elsevierStylePara elsevierViewall">Low iron stores&#58; Ferritin 30&#8211;100&#8239;ng&#47;mL and TSAT&#8239;&#62;&#8239;20&#37;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0095"><span class="elsevierStyleLabel">&#8226;</span><p id="par0155" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 15&#46;</span> It is generally accepted that a serum vitamin B12 concentration &#62;270&#8239;pg&#47;mL and serum folic acid &#62;3&#8211;5&#8239;ng&#47;mL &#40;depending on the laboratory&#41; rules out deficiency of these maturation factors&#44; but additional laboratory tests may be needed to confirm this &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0100"><span class="elsevierStyleLabel">&#8226;</span><p id="par0160" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 16&#46;</span> The routine determination of baseline erythropoietin &#40;Epo&#41; levels in preoperative anemia screening is not considered cost-effective&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0105"><span class="elsevierStyleLabel">&#8226;</span><p id="par0165" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 17&#46;</span> The patient should be referred for the study and treatment of anemia when it is not justified by the condition which led to the surgical procedure indication&#44; especially in cases of iron deficiency&#44; renal failure&#44; anemia of inflammation or of unknown origin&#44; macrocytic anemia not justified by liver disease and&#47;or B12&#47;folate deficiency&#44; or any other anemia accompanied by another cytopenia&#46; Studying these anemias in a quick-resolution consultation is a priority in order to minimize the possible delay in surgery&#46; <span class="elsevierStyleBold">&#91;7&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0110"><span class="elsevierStyleLabel">&#8226;</span><p id="par0170" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 18&#46;</span> After major surgery with significant perioperative bleeding&#44; at least one Hb determination in the first 24&#8239;h is required&#46; In stable patients&#44; it is advisable to perform another determination on the third or fourth day after surgery &#40;when the Hb nadir is reached&#41; in order to screen for the presence of anemia and its severity as well as to initiate treatment&#44; if necessary &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46; In patients with persistent postoperative bleeding&#44; daily Hb monitoring is justified&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0115"><span class="elsevierStyleLabel">&#8226;</span><p id="par0175" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 19</span>&#46; During postoperative hospitalization&#44; if iron deficiency is suspected and preoperative data are not available&#44; iron deficiency should be defined as ferritin &#60;100&#8239;ng&#47;mL or ferritin &#60;300&#8239;ng&#47;mL and transferrin saturation &#60;20&#37;&#44; but additional laboratory tests may be needed for confirmation&#44; such as a reticulocyte hemoglobin &#60;28&#8239;pg &#40;or equivalent parameters&#41; or a ferritin ratio &#40;log ferritin&#47;soluble transferrin receptor&#41; &#62;2&#44; if available&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li></ul></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Block 3&#46; Treatment options for perioperative anemia</span><p id="par0180" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0015"><li class="elsevierStyleListItem" id="lsti0120"><span class="elsevierStyleLabel">&#8226;</span><p id="par0185" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 20&#46;</span> The iron content of food is unlikely to be enough to correct anemia and replenish iron stores in a patient with iron deficiency anemia &#40;IDA&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0125"><span class="elsevierStyleLabel">&#8226;</span><p id="par0190" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 21&#46;</span> Provided there is adequate tolerance and enough time &#40;ideally six to eight weeks&#41;&#44; oral iron salts administration can be useful for the preoperative treatment of iron deficiency and mild to moderate iron deficiency anemia &#40;IDA&#41; IDA as well as to replenish low iron stores &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0130"><span class="elsevierStyleLabel">&#8226;</span><p id="par0195" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 22&#46;</span> Oral iron salts must be administered at low doses &#40;40&#8211;50&#8239;mg of elemental iron&#41; once daily or at moderate doses &#40;80&#8211;100&#8239;mg of elemental iron&#41; every other day in order to maximize absorption and improve tolerance and treatment adherence&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0135"><span class="elsevierStyleLabel">&#8226;</span><p id="par0200" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 23&#46;</span> After major surgery&#44; the release of hepcidin induced by the inflammatory response to surgical aggression drastically decreases the absorption of oral iron salts&#44; limiting their bioavailability and increasing their adverse gastrointestinal effects&#46; Therefore&#44; the administration of oral iron salts in the immediate postoperative period is generally not recommended&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0140"><span class="elsevierStyleLabel">&#8226;</span><p id="par0205" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 24&#46;</span> The absorption of oral sucrosomial&#174; iron is mostly independent of hepcidin&#46; The available evidence suggests the efficacy of its administration for treating IDA and perioperative iron deficiency in different surgeries &#40;cardiac&#44; vascular&#44; orthopedic&#44; bariatric&#44; gynecological&#41;&#44; but further studies are needed&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a><span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0145"><span class="elsevierStyleLabel">&#8226;</span><p id="par0210" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 25&#46;</span> If the efficacy of oral sucrosomial&#174; iron administration is confirmed&#44; this could be the treatment of choice&#44; especially in cases of refractoriness&#47;intolerance to oral iron salts&#46; It could be started early from primary care departments&#44; which could reduce the prevalence of anemia and intravenous iron &#40;FeIV&#41; requirements in the days prior to elective surgery&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0150"><span class="elsevierStyleLabel">&#8226;</span><p id="par0215" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 26&#46;</span> FeIV is a safe and effective alternative to oral iron for treating perioperative iron deficiency and IDA&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> It should preferably be used in anemic patients who&#58;</p></li><li class="elsevierStyleListItem" id="lsti0155"><span class="elsevierStyleLabel">-</span><p id="par0220" class="elsevierStylePara elsevierViewall">Have intolerance or a contraindication to oral iron&#44; inflammation&#44; moderate to severe anemia&#44; or persistent bleeding&#46;</p></li><li class="elsevierStyleListItem" id="lsti0160"><span class="elsevierStyleLabel">-</span><p id="par0225" class="elsevierStylePara elsevierViewall">Are expected to have moderate to high perioperative blood loss &#40;&#62;500&#8239;mL or &#62;10&#37; of blood volume&#41;&#46;</p></li><li class="elsevierStyleListItem" id="lsti0165"><span class="elsevierStyleLabel">-</span><p id="par0230" class="elsevierStylePara elsevierViewall">Receive erythropoiesis-stimulating agents &#40;ESAs&#41;</p></li><li class="elsevierStyleListItem" id="lsti0170"><span class="elsevierStyleLabel">-</span><p id="par0235" class="elsevierStylePara elsevierViewall">Have little time before major surgery &#40;&#8804;4 weeks&#41; or have developed moderate or severe postoperative anemia&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0175"><span class="elsevierStyleLabel">&#8226;</span><p id="par0240" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 27&#46;</span> The timing of administration&#44; the severity of the anemia&#44; the underlying disease&#44; and perhaps the FeIV formulation used &#40;high dose vs&#46; low dose&#41; influence treatment response&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0180"><span class="elsevierStyleLabel">&#8226;</span><p id="par0245" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 28&#46;</span> Although they are becoming increasingly safe&#44; FeIV formulations are more expensive than oral iron formulations and entail the need for venous access &#40;adverse effects at the injection site may occur&#41; and infusion monitoring &#40;a risk of infusion reactions &#91;relatively frequent&#93; and hypersensitivity &#91;rare&#93; remains&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0185"><span class="elsevierStyleLabel">&#8226;</span><p id="par0250" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 29&#46;</span> FeIV formulations that allow for administration of high doses &#40;1000&#8211;1500&#8239;mg&#41; in a single infusion &#40;15&#8211;30&#8239;min&#41; can facilitate treatment and be cost-effective&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a><span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0190"><span class="elsevierStyleLabel">&#8226;</span><p id="par0255" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 30&#46;</span> ESAs have a role in the treatment of anemia in surgical patients in whom substantial blood loss is anticipated&#44; especially those with anemia of inflammation&#44; who have little time for optimization prior to surgery and in those who decline packed red blood cell transfusion &#40;PRBCT&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#44;8&#44;11</span></a> Coadjuvant treatment with IV iron is advised in order to increase the efficacy of ESAs and reduce the risk of thrombocytosis&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0195"><span class="elsevierStyleLabel">&#8226;</span><p id="par0260" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 31&#46;</span> All patients with a documented vitamin B12 and&#47;or folate deficiency must be treated&#46; The route of administration &#40;oral or parenteral&#41; and regimen &#40;dose and frequency&#41; will depend on the cause and severity of the deficiency and the associated symptoms&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0200"><span class="elsevierStyleLabel">&#8226;</span><p id="par0265" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 32&#46;</span> Prophylactic supplementation with oral folic acid &#40;5&#8239;mg&#47;day until surgery&#41; and parenteral vitamin B12 &#40;1&#8239;mg dose&#41; may be useful in meeting the demands of increased erythropoietic activity during the treatment of moderate-severe anemia&#44; especially in patients at risk of deficiencies of these maturational factors and&#47;or those who receive ESAs&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a><span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0205"><span class="elsevierStyleLabel">&#8226;</span><p id="par0270" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 33&#46;</span> PRBCT would be indicated for the treatment of severe anemia in patients with hemodynamic instability&#44; risk criteria&#44; and&#47;or alarm symptoms&#46; Although it is a useful measure in these cases&#44; it is a limited therapeutic resource of transitory efficacy and is not without complications&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0210"><span class="elsevierStyleLabel">&#8226;</span><p id="par0275" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 34&#46;</span> A restrictive strategy for PRBCT &#40;if hemoglobin concentration &#60;7&#8211;8&#8239;g&#47;dL and&#47;or presence of signs or symptoms of acute anemia&#41; has been shown to be at least as effective as a liberal strategy &#40;if Hb &#60;9&#8211;10&#8239;g&#47;dL&#41; in most inpatient studies&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0215"><span class="elsevierStyleLabel">&#8226;</span><p id="par0280" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 35&#46;</span> The use of &#8220;restrictive&#8221; criteria for PRBCT has been shown to be safe in most populations studied except in patients with acute cardiac ischemia or those who have undergone oncologic abdominal surgery&#59; no conclusive data are available on these patients&#46; <span class="elsevierStyleBold">&#91;8&#47;9&#93;</span></p></li><li class="elsevierStyleListItem" id="lsti0220"><span class="elsevierStyleLabel">&#8226;</span><p id="par0285" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">Key point 36&#46;</span> In most hemodynamically stable patients in whom PRBCT is considered&#44; the administration of a single unit may be a valid option&#46; It should be remembered that the transfusion of each PRBC unit is a separate clinical decision&#44; which makes it necessary to reevaluate the patient before prescribing the next one&#46; <span class="elsevierStyleBold">&#91;9&#47;9&#93;</span></p></li></ul></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Discussion</span><p id="par0290" class="elsevierStylePara elsevierViewall">Adequate management of perioperative anemia is one of the fundamental pillars of PBM&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;5</span></a> There are consensus documents and clinical practice guidelines developed by national and international working groups and&#47;or scientific societies that recommend a systematic approach to treating preoperative anemia&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#8211;11&#44;13</span></a> Regarding postoperative anemia&#44; most recommend the use of a restrictive threshold for PRBCT in treating severe anemia&#44; but recommendations on pharmacological treatment are scarce or non-existent&#46; This leads to variability in clinical practice&#46;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;6&#8211;11&#44;13</span></a></p><p id="par0295" class="elsevierStylePara elsevierViewall">Based on the scientific evidence and their clinical experience&#44; this multidisciplinary panel of professionals reached a consensus on the most important epidemiological&#44; etiological&#44; diagnostic&#44; and treatment aspects related to perioperative anemia and its comprehensive management &#40;presented as KPs&#41;&#46; Based on the 36 KPs that were agreed upon&#8212;most of them unanimously&#8212;a pragmatic&#44; clear&#44; easy-to-follow clinical pathway was developed through algorithms &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">Figs&#46; 1&#8211;3</a>&#41; for the diagnosis and treatment of perioperative anemia and hematinic deficiencies in order to improve the clinical progress and functional recovery of surgical patients and to do so in a cost-effective manner&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a></p><p id="par0300" class="elsevierStylePara elsevierViewall">To achieve this objective&#44; close collaboration among the main departments involved &#40;surgery&#44; anesthesiology&#44; hematology&#44; internal medicine&#44; family medicine&#41; is essential in order to ensure continuity of care throughout the entire process&#44; from the indication for surgery to postoperative recovery&#46; In addition&#44; it would be ideal to establish a multidisciplinary preoperative care clinic&#44; such as those proposed by the Centre for Preoperative Care in the United Kingdom &#40;<a href="https://cpoc.org.uk">https&#58;&#47;&#47;cpoc&#46;org&#46;uk</a>&#41; or the Clinical Pathway for Intensified Recovery in Adult Surgery in Spain<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> in order to develop a personalized care plan to optimize not only erythropoiesis&#44; but also the patient&#8217;s overall health status&#46; This care would continue during surgery and post-anesthesia recovery &#40;surgery&#44; anesthesia&#41;&#44; the hospital stay on the ward &#40;ideally in a multidisciplinary manner in shared-care programs&#58; internal medicine&#44; hematology&#41;&#44; and after hospital discharge &#40;family medicine&#41;&#46;</p><p id="par0305" class="elsevierStylePara elsevierViewall">In summary&#44; this consensus document not only analyzes why&#44; for whom&#44; with what&#44; and when to treat perioperative anemia&#44; but also provides a clinical pathway on how to screen for&#44; classify&#44; and treat it based on the type of surgery&#46; Therefore&#44; it is hoped that it will be a useful tool for the development and implementation of early identification and appropriate management programs that are adapted to the available resources and particular characteristics of the different hospital institutions in Spain&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Previous presentations</span><p id="par0310" class="elsevierStylePara elsevierViewall">Communication presented at the 44th National Congress of the Spanish Society of Internal Medicine&#46; Valencia&#44; Spain&#46; November 15&#8211;17&#44; 2023&#46; Award for the best type A poster&#46;</p></span></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Funding</span><p id="par0315" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleGrantSponsor" id="gs0005">Zambon S&#46;A&#46;U&#46;</span> made an unconditional financial contribution for the logistical coordination of the consensus&#46; The conception&#44; methodology&#44; interpretation of existing evidence&#44; development of the key points&#44; and the final content of the consensus were carried out by the authors&#46; Zambon S&#46;A&#46;U&#46; did not participate in panel meetings&#44; in the development of the key points or algorithms&#44; or in the final version of this document&#46;</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Conflicts of interest</span><p id="par0320" class="elsevierStylePara elsevierViewall">Manuel Mu&#241;oz has received remuneration for conferences and&#47;or consulting from Pharmacosmos &#40;Denmark&#41;&#44; PharmaNutra &#40;Italy&#41;&#44; and Zambon &#40;Spain&#41;&#46;</p><p id="par0325" class="elsevierStylePara elsevierViewall">Sonsoles Arag&#243;n indicates that this work was supported by Zambon S&#46;A&#46;U&#46; laboratories through a service agreement with Sonsoles Arag&#243;n Alvarez with financial remuneration for data collection and analysis of the current scientific evidence related to the consensus&#8217; objective&#46; The funders had no role in the study design&#59; in data collection&#44; analysis&#44; or interpretation&#59; or in the drafting of the manuscript&#46;</p><p id="par0330" class="elsevierStylePara elsevierViewall">M&#243;nica Ballesteros has received support from Zambon S&#46;A&#46;U&#46; for her participation in this work&#46;</p><p id="par0335" class="elsevierStylePara elsevierViewall">Elvira Bisbe-Vives has given conferences and courses for CSL Vifor&#44; CSL Behring&#44; Sysmex&#44; and Baxter&#46; The MAPBM project received an &#8220;Unrestricted Grant&#8221; through the IMIM Research Center from CSL Vifor&#44; Baxter&#44; and Sysmex&#46;</p><p id="par0340" class="elsevierStylePara elsevierViewall">Carlos Jeric&#243; has received remuneration for conferences&#44; consulting meetings&#44; educational events&#44; and support for attending meetings from Bial&#44; Vifor Pharma&#44; and Zambon&#46;</p><p id="par0345" class="elsevierStylePara elsevierViewall">Pilar Llamas-Sillero has given conferences for AstraZeneca&#44; Boehringer Ingelheim&#44; Bristol-Myers Squibb&#44; and Novartis&#46;</p><p id="par0350" class="elsevierStylePara elsevierViewall">H&#233;ctor Manuel Meijide-M&#237;guez has received remuneration from Zambon for participating as part of the Expert Advisory Committee for this consensus document&#46;</p><p id="par0355" class="elsevierStylePara elsevierViewall">Elisabet Ray&#243;-Martin has collaborated as an author of the consensus funded by Zambon&#46;</p><p id="par0360" class="elsevierStylePara elsevierViewall">Mar&#237;a Jos&#233; Rodr&#237;guez-Su&#225;rez has received remuneration from Zambon&#46;</p></span></span>"
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          "identificador" => "sec0050"
          "titulo" => "Conflicts of interest"
        ]
        10 => array:2 [
          "identificador" => "xack747530"
          "titulo" => "Acknowledgments"
        ]
        11 => array:1 [
          "titulo" => "References"
        ]
      ]
    ]
    "pdfFichero" => "main.pdf"
    "tienePdf" => true
    "fechaRecibido" => "2023-12-02"
    "fechaAceptado" => "2024-02-07"
    "PalabrasClave" => array:2 [
      "en" => array:2 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Keywords"
          "identificador" => "xpalclavsec1828343"
          "palabras" => array:6 [
            0 => "Patient blood management"
            1 => "Perioperative anemia"
            2 => "Iron deficiency"
            3 => "Iron therapy"
            4 => "Preoperative optimization"
            5 => "Postoperative follow-up"
          ]
        ]
        1 => array:4 [
          "clase" => "abr"
          "titulo" => "Abbreviations"
          "identificador" => "xpalclavsec1828342"
          "palabras" => array:18 [
            0 => "ESAs"
            1 => "IDA"
            2 => "UA"
            3 => "PRBC"
            4 => "CHr"
            5 => "FeIV"
            6 => "Hb"
            7 => "TSAT"
            8 => "WHO"
            9 => "PBM"
            10 => "KP"
            11 => "CRP"
            12 => "POC"
            13 => "SEHH"
            14 => "SEMI"
            15 => "PRBCT"
            16 => "Tf"
            17 => "GCIAMT"
          ]
        ]
      ]
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          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec1828341"
          "palabras" => array:6 [
            0 => "Patient blood management"
            1 => "Anemia perioperatoria"
            2 => "Deficiencia de hierro"
            3 => "Ferroterapia"
            4 => "Optimizaci&#243;n preoperatoria"
            5 => "Seguimiento postoperatorio&#46;"
          ]
        ]
      ]
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    "resumen" => array:2 [
      "en" => array:2 [
        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Perioperative anemia is an independent risk factor for postoperative morbidity and mortality&#46; However&#44; conceptual&#44; logistical and administrative barriers persist that hinder the widespread implementation of protocols for their management&#46; The project coordinator convened a multidisciplinary group of 8 experienced professionals to develop perioperative anemia management algorithms&#44; based on a series of key points &#40;KPs&#41; related to its prevalence&#44; consequences&#44; diagnosis and treatment&#46; These KPs were assessed using a 5-point Likert scale&#44; from &#34;strongly disagree &#91;1&#93;&#34; to &#34;strongly agree &#91;5&#93;&#34;&#46; For each KP&#44; consensus was reached when receiving a score of 4 or 5 from at least 7 participants &#40;&#62;75&#37;&#41;&#46; Based on the 36 KPs agreed upon&#44; diagnostic-therapeutic algorithms were developed that we believe can facilitate the implementation of programs for early identification and adequate management of perioperative anemia&#44; adapted to the characteristics of the different institutions in our country&#46;</p></span>"
      ]
      "es" => array:2 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">La anemia perioperatoria constituye un factor independiente de riesgo de morbimortalidad postoperatoria&#46; Sin embargo&#44; persisten barreras conceptuales&#44; log&#237;sticas y administrativas que dificultan la implementaci&#243;n generalizada de protocolos para su manejo&#46; El coordinador del proyecto convoc&#243; a un grupo multidisciplinar de 8 profesionales para elaborar un documento de consenso sobre el manejo de la anemia perioperatoria&#44; en base a una serie puntos claves &#40;PCs&#41; relativos a su prevalencia&#44; consecuencias&#44; diagn&#243;stico y tratamiento&#46; Estos PCs fueron evaluados utilizando una escala Likert de 5 puntos&#44; desde &#8220;totalmente en desacuerdo &#91;1&#93;&#8221; a &#8220;totalmente de acuerdo &#91;5&#93;&#8221;&#46; Cada PC se consider&#243; consensuado si recib&#237;a una puntuaci&#243;n de 4 o 5 por al menos 7 participantes &#40;&#62;75&#37;&#41;&#46; A partir de los 36 PCs consensuados&#44; se construyeron algoritmos diagn&#243;stico-terap&#233;uticos que pueden facilitar la implementaci&#243;n de programas de identificaci&#243;n precoz y manejo adecuado de la anemia perioperatoria&#44; adaptados a las caracter&#237;sticas de las instituciones hospitalarias de nuestro pa&#237;s&#46;</p></span>"
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            "apendice" => "<p id="par0375" class="elsevierStylePara elsevierViewall">The following is Supplementary data to this article&#58;<elsevierMultimedia ident="upi0005"></elsevierMultimedia></p>"
            "etiqueta" => "Appendix A"
            "titulo" => "Supplementary data"
            "identificador" => "sec0060"
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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Clinical pathway for perioperative anemia management&#46;</p> <p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The surgical team which proposes the surgery must initiate the process &#40;1&#41; and assess the procedure&#8217;s bleeding&#47;transfusion risk &#40;2&#41;&#46; If there is no bleeding&#47;transfusion risk&#44; the standard preoperative evaluation for the procedure is ordered &#40;3&#41;&#46; If anemia is detected during the evaluation&#44; it must be investigated and treated without postponing the surgery&#46; In case of a procedure with bleeding&#47;transfusion risk&#44; laboratory tests are ordered in order to screen for and classify anemia and hematinic deficiencies &#40;iron&#44; folic acid&#44; vitamin B12&#41; &#40;4&#41;&#46; This must also be done for patients with known anemia&#44; whether or not it was caused by the disease which requires surgery &#40;chronic bleeding&#41;&#44; and in patients with additional risk factors that may increase the likelihood of bleeding &#40;e&#46;g&#46;&#44; treatment with anticoagulants or antiplatelet agents&#41;&#44; even if the surgery does not entail bleeding&#47;transfusion risk&#46; Blood collection should be done at that same visit &#40;coordination with the blood collection room&#41;&#46; In case of non-deferrable elective surgery &#40;e&#46;g&#46;&#44; colon cancer&#41;&#44; the presence of anemia may be determined in venous blood using a point-of-care device&#46; This would allow for starting empirical treatment &#40;e&#46;g&#46;&#44; IV iron administration&#41; immediately in a day hospital or anemia clinic&#46; The laboratory test results must be available to the professionals involved &#40;surgery&#47;family medicine&#47;internal medicine&#47;anesthesia&#47;hematology&#41; as soon as possible&#46; If Hb is &#8805;13&#8239;g&#47;dL &#40;5&#41;&#44; possible hematinic deficiency should be checked &#40;6&#41; in order to administer the pertinent supplements&#44; if necessary&#44; and proceed with the surgery &#40;7&#41;&#46; If Hb is &#60;13&#8239;g&#47;dL &#40;8&#41;&#44; the patient&#8217;s management will depend on the severity of the anemia and the time remaining until surgery&#58; Deferrable elective surgery &#40;9&#41;&#58; classify anemia and initiate treatment&#44; verify the treatment&#8217;s efficacy at least two weeks before surgery &#40;10&#41;&#44; consider postponing surgery until the anemia is corrected &#40;11&#41;&#59; Non-deferrable elective surgery &#40;12&#41;&#58; classify anemia and initiate treatment &#40;10&#41;&#44; proceed with surgery on the scheduled date &#40;7&#41;&#59; Urgent surgery deferrable by 24&#8211;48&#8239;h &#40;13&#41;&#58; classify anemia and initiate treatment during hospitalization &#40;10&#41;&#44; according to etiology or empirically &#40;surgeon&#44; anesthesiologist&#44; internist&#44; hematologist&#41;&#44; and proceed with surgery &#40;7&#41;&#59; Urgent or emergent surgery &#40;14&#41;&#58; collect blood samples on admission for anemia classification &#40;15&#41; and initiate treatment in the postoperative period&#46; In all cases&#44; assess the need for postoperative treatment &#40;see <a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p>"
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          "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Diagnostic and treatment algorithm for preoperative anemia&#46;</p> <p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">ESA&#58; erythropoiesis-stimulating agent&#59; UA&#58; unexplained anemia&#59; Hb&#58; hemoglobin&#59; CHr&#58; reticulocyte Hb content&#59; IV iron&#58; intravenous iron &#40;preferably formulations that allow for the rapid administration of high doses&#41;&#59; CRP&#58; C-reactive protein&#59; Tf&#58; transferrin&#46; &#42;Conventional oral iron or sucrosomial iron&#59; &#42;&#42;IV iron&#44; intravenous iron &#40;preferably formulations that allow for the rapid administration of high doses&#41; or sucrosomial iron &#40;if there is enough time before surgery&#44; especially if there are difficulties in implementing the logistics of IV iron administration&#41;&#59; &#42;&#42;&#42;In most cases&#44; treatment will be the administration of an ESA&#46;</p>"
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          "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Diagnostic and treatment algorithm for postoperative anemia&#46;</p> <p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Whenever possible&#44; assess iron status within the first 24&#8239;h postoperatively if it was not already assessed in the preoperative evaluation &#40;1&#41;&#46; In patients without postoperative bleeding&#44; monitor hemoglobin at 24 and 72&#8211;96&#8239;h after the procedure &#40;1&#41;&#46; Assess the presence and severity of anemia according to WHO criteria&#58; Hb &#60;12&#8239;g&#47;dL for women&#44; Hb &#60;13&#8239;g&#47;dL for men &#40;2&#41;&#46; Postoperative iron deficiency is defined by ferritin &#60;100&#8239;ng&#47;mL&#44; ferritin &#60;300&#8239;ng&#47;mL&#44; and transferrin saturation &#60;20&#37; or reticulocyte hemoglobin &#60;28&#8239;pg &#40;3&#41;&#46; If there is no iron deficiency&#44; consider other causes &#40;4&#41;&#46; Consider iron therapy &#40;6&#41;&#44; preferably IV in cases of mild or moderate anemia with iron deficiency &#40;3&#41; or Hb &#60;10&#8239;g&#47;dL due to preoperative anemia or abundant surgical bleeding&#44; regardless of iron status &#40;5&#41;&#46; In patients with severe postoperative anemia or who decline transfusion&#44; consider adding an ESA to IV iron therapy&#44; although there is little evidence on its use in this context and it must be assessed on a case-by-case basis&#46; In patients with severe symptomatic anemia&#44; consider packed red blood cell transfusion &#40;PRBCT&#41; if the patient consents&#46; Transfuse one unit at a time&#44; with reevaluation of additional needs &#40;7&#41;&#46; Consider administering IV iron supplements or sucrosomial iron after transfusion&#44; using the post-transfusion hemoglobin in order to calculate the total iron deficiency &#40;6&#41;&#46; Follow-up on the patient after hospital discharge &#40;8&#41;&#46;</p>"
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ISSN: 22548874
Original language: English
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