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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleDisplayedQuote" id="dsq0005"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">&#8220;When we have reduced needless servitude to a minimum and avoided unnecessary ills&#44; we are still left with a long series of true evils to keep the heroic virtues alive&#58; death&#44; old age&#44; incurable illnesses&#8230;&#8221;</p></span><span class="elsevierStyleDisplayedQuote" id="dsq0010"><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleHsp" style=""></span>&#40;&#8220;Memoirs of Hadrian&#8221;&#46; Marguerite Yourcenar&#41;</p></span></p><p id="par0010" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; exemplifies &#40;as few other diseases do&#41; what in the words of Yourcenar would be the servitude of human nature and the heroic virtues of the physician&#46; HF is an incurable disease that is especially prevalent in old age and that inexorably leads to death&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">Despite the emergence of effective drugs and therapies in recent decades to fight HF&#44; its morbidity and mortality are still unacceptably high&#46;<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">1</span></a> Only half of patients benefit from these new drugs and therapies because the treatment regimens for HF with preserved ejection fraction are unclear&#44; and there is no proof of the actual efficacy of a specific drug group&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">HF is characterized by its chronic progression&#44; heralded by acute decompensations that result in hospitalizations &#40;occasionally numerous&#41; that interfere with the lives of patients and their families&#46; In both situations and with outpatients with apparently well-controlled HF&#44; as well as during decompensations&#44; HF remains symptomatic&#44; and these patients&#8217; risk of death is greater than that of people the same age and sex but without HF&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">3</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">Pascual Figal and Bayes-Genis&#44;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">4</span></a> in an intelligent and thought-provoking exercise of reflection&#44; recently questioned whether the stability of outpatients with HF resulted in trivializing the importance and severity of HF and consequently an accommodative or nihilistic approach by the physician&#46; The authors suggested that the term &#8220;stability&#8221; applied to HF should be omitted or better yet substituted by &#8220;optimized treatment&#8221;&#44; as this would lead to an approach that was more prone towards a better therapeutic control&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">In these conditions&#44; what does &#8220;stability&#8221; in the context of HF mean&#63; Can we say that an asymptomatic patient with HF is &#8220;stable&#8221;&#63; If &#8220;stability&#8221; has some meaning&#44; can it be measured&#63; If so&#44; how can it be measured&#63; Barrrios et al&#46;&#44; in the article published in this issue of <span class="elsevierStyleSmallCaps">Revista Cl&#237;nica Espa&#241;ola</span>&#44;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> examined these clearly important questions&#46; The Delphi method is a structured process that synthesizes information through rounds of consensus to generate indicators of quality&#59; However&#44; its use in areas of uncertainty is more questionable&#46;<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">6</span></a> As a result&#44; the Delphi method is probably not the best tool for reaching conclusions in a setting as uncertain and ill-defined as that addressed by Escobar et al&#46;&#44;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> although the method helps identify the degree of consensus and provides an interesting overview&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The term &#8220;stable&#8221; HF is used profusely in the most widely used clinical practice guidelines &#40;CPGs&#41;<a class="elsevierStyleCrossRefs" href="#bib0120"><span class="elsevierStyleSup">2&#44;7</span></a> although is defined only in the European Society of Cardiology &#40;ESC&#41; guidelines&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> A treated patient is considered stable if their signs and symptoms have remained unchanged for at least a month&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> The study by Barrios et al&#46;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> appropriately adds another requirement&#58; in addition to no changes in clinical expression&#44; these signs and symptoms should be minimal or nonexistent&#46; It would be very difficult to consider a patient with New York Heart Association &#40;NYHA&#41; functional class <span class="elsevierStyleSmallCaps">iii</span> HF as stable&#44; even though long their symptoms do not change over time&#46; Eighty-two percent of the 150 cardiologists who participated in the study accepted this definition&#44; and 96&#37; agreed that the silent nature of HF could increase the risk of death&#46; However&#44; 30&#37; of the participants did not agree that cardiac structure and function deteriorate despite the absence of signs and symptoms and considered readmissions in these conditions to be rare&#46; In other words&#44; the concept of stability can lead to the misperception of a pathophysiological reality&#44; namely the inexorable progression of HF&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Most participants &#40;more than 90&#37;&#41; acknowledged the importance of periodic follow-up &#40;every 6 months&#41; in specialized units and the decisive contribution of nursing and that of primary care physicians&#46; We fully agree with this perception&#46; As internists&#44; we would like to add that our viewpoint and training in caring for a syndrome as complex and comorbid<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">8</span></a> as HF&#44; both with reduced and preserved ejection fraction &#40;which is not asked about in the questionnaire&#41;&#44; provide helpful nuances for patients and physicians&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">One of the study&#39;s controversial aspects was the method for assessing the stability of the patients with HF&#46; If the definition&#44; based on signs and symptoms&#44; is ambiguous &#40;as recognized by the authors&#41;&#44; its estimate should be equally ambiguous&#46; In fact&#44; the correlation between functional class perceived by the patient and by the physician shows a low correlation&#46;<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">9</span></a> More objective methods are therefore needed&#46; Eighty percent of the participants considered the need for increasing the dosage of loop diuretics as a good marker of instability&#46; Seventy-seven percent of the participants found the serial reading of natriuretic peptides useful&#44; which have shown their unquestionable usefulness in diagnosing HF in patients with dyspnea in acute conditions&#46;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">10&#44;11</span></a> The value of natriuretic peptides in the chronic setting of HF is more questionable&#44; as recognized by the CPGs of ESC&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> There are also more objective methods that have shown acceptable performance for detecting subclinical degrees of congestion&#44; such as lung ultrasound&#44;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">12</span></a> the measurement of the diameter and degree of inspiratory collapse of the inferior vena cava<a class="elsevierStyleCrossRefs" href="#bib0175"><span class="elsevierStyleSup">13&#44;14</span></a> and the blood concentration of carbohydrate antigen 125&#44;<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">15</span></a> which are already employed in daily clinical practice&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">14</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">The most controversial aspect in our opinion is the approach when faced with a treated and clinically asymptomatic patient&#46; Let us imagine a patient with a left ventricular ejection fraction of 35&#37;&#44; treated with 20<span class="elsevierStyleHsp" style=""></span>mg enalapril and 5<span class="elsevierStyleHsp" style=""></span>mg bisoprolol daily&#44; with NYHA functional class <span class="elsevierStyleSmallCaps">i</span> HF for the past 18 months&#46; According to the ESC CPGs&#44;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> this patient is undergoing optimal treatment&#46; Would it therefore be reasonable to add mineralocorticoid receptor blockers&#63; Should enalapril be replaced with sacubitril&#47;valsartan&#63;</p><p id="par0055" class="elsevierStylePara elsevierViewall">We agree with the authors that the concept of HF &#8220;stability&#8221; is questionable&#46; In our opinion&#44; this means taking an active approach in searching for subclinical signs of congestion&#59; In other words&#44; assessing the signs of residual congestion&#44;<a class="elsevierStyleCrossRefs" href="#bib0190"><span class="elsevierStyleSup">16&#44;17</span></a> using methods complementary to the purely semiological<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">18&#44;19</span></a> and acting accordingly&#46; Until there are conclusive data&#44; however&#44; the treatment of patients with no residual congestion should be considered optimized if the treatment is in keeping with the CPGs&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">The CPG recommendations will likely change in the near future&#44; but this is not a certainty&#46; Until then&#44; it seems prudent to follow the guidelines&#44; unless a reasoned clinical judgment recommends otherwise&#46; The test of time is essential to obtaining a proper overview of the population behavior of the new drugs&#46; For example&#44; after the success of spironolactone in the RALES study&#44;<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">20</span></a> there was an increase in the incidence of morbidity and mortality attributed to hyperkalemia&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">21</span></a> In addition&#44; in the clinical trial supporting the use of sacubitril&#47;valsartan&#44;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">22</span></a> up to 20&#37; of the patients &#40;10&#37; in each study branch&#41; had to be excluded due to adverse effects or intolerance before entering the actual treatment arms&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">As attractive as it is to question the concept of clinical &#8220;stability&#8221; in HF&#44; we need more than consensus opinions to change a clinical practice supported by years of research and experience&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">As the saying goes&#44; &#8220;one must know the latest but apply the next to last&#46;&#8221;</p></span>"
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Editorial
Clinical stability in heart failure. Myth or reality
Estabilidad clínica en la insuficiencia cardiaca. Mito o realidad
J.I. Pérez Calvoa,b,c,
Corresponding author
jiperez@unizar.es

Corresponding author.
, J. Rubio Graciaa,b
a Servicio de Medicina Interna, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
b Instituto de Investigación Sanitaria de Aragón, Spain
c Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleDisplayedQuote" id="dsq0005"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">&#8220;When we have reduced needless servitude to a minimum and avoided unnecessary ills&#44; we are still left with a long series of true evils to keep the heroic virtues alive&#58; death&#44; old age&#44; incurable illnesses&#8230;&#8221;</p></span><span class="elsevierStyleDisplayedQuote" id="dsq0010"><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleHsp" style=""></span>&#40;&#8220;Memoirs of Hadrian&#8221;&#46; Marguerite Yourcenar&#41;</p></span></p><p id="par0010" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; exemplifies &#40;as few other diseases do&#41; what in the words of Yourcenar would be the servitude of human nature and the heroic virtues of the physician&#46; HF is an incurable disease that is especially prevalent in old age and that inexorably leads to death&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">Despite the emergence of effective drugs and therapies in recent decades to fight HF&#44; its morbidity and mortality are still unacceptably high&#46;<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">1</span></a> Only half of patients benefit from these new drugs and therapies because the treatment regimens for HF with preserved ejection fraction are unclear&#44; and there is no proof of the actual efficacy of a specific drug group&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">HF is characterized by its chronic progression&#44; heralded by acute decompensations that result in hospitalizations &#40;occasionally numerous&#41; that interfere with the lives of patients and their families&#46; In both situations and with outpatients with apparently well-controlled HF&#44; as well as during decompensations&#44; HF remains symptomatic&#44; and these patients&#8217; risk of death is greater than that of people the same age and sex but without HF&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">3</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">Pascual Figal and Bayes-Genis&#44;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">4</span></a> in an intelligent and thought-provoking exercise of reflection&#44; recently questioned whether the stability of outpatients with HF resulted in trivializing the importance and severity of HF and consequently an accommodative or nihilistic approach by the physician&#46; The authors suggested that the term &#8220;stability&#8221; applied to HF should be omitted or better yet substituted by &#8220;optimized treatment&#8221;&#44; as this would lead to an approach that was more prone towards a better therapeutic control&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">In these conditions&#44; what does &#8220;stability&#8221; in the context of HF mean&#63; Can we say that an asymptomatic patient with HF is &#8220;stable&#8221;&#63; If &#8220;stability&#8221; has some meaning&#44; can it be measured&#63; If so&#44; how can it be measured&#63; Barrrios et al&#46;&#44; in the article published in this issue of <span class="elsevierStyleSmallCaps">Revista Cl&#237;nica Espa&#241;ola</span>&#44;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> examined these clearly important questions&#46; The Delphi method is a structured process that synthesizes information through rounds of consensus to generate indicators of quality&#59; However&#44; its use in areas of uncertainty is more questionable&#46;<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">6</span></a> As a result&#44; the Delphi method is probably not the best tool for reaching conclusions in a setting as uncertain and ill-defined as that addressed by Escobar et al&#46;&#44;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> although the method helps identify the degree of consensus and provides an interesting overview&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The term &#8220;stable&#8221; HF is used profusely in the most widely used clinical practice guidelines &#40;CPGs&#41;<a class="elsevierStyleCrossRefs" href="#bib0120"><span class="elsevierStyleSup">2&#44;7</span></a> although is defined only in the European Society of Cardiology &#40;ESC&#41; guidelines&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> A treated patient is considered stable if their signs and symptoms have remained unchanged for at least a month&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> The study by Barrios et al&#46;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">5</span></a> appropriately adds another requirement&#58; in addition to no changes in clinical expression&#44; these signs and symptoms should be minimal or nonexistent&#46; It would be very difficult to consider a patient with New York Heart Association &#40;NYHA&#41; functional class <span class="elsevierStyleSmallCaps">iii</span> HF as stable&#44; even though long their symptoms do not change over time&#46; Eighty-two percent of the 150 cardiologists who participated in the study accepted this definition&#44; and 96&#37; agreed that the silent nature of HF could increase the risk of death&#46; However&#44; 30&#37; of the participants did not agree that cardiac structure and function deteriorate despite the absence of signs and symptoms and considered readmissions in these conditions to be rare&#46; In other words&#44; the concept of stability can lead to the misperception of a pathophysiological reality&#44; namely the inexorable progression of HF&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Most participants &#40;more than 90&#37;&#41; acknowledged the importance of periodic follow-up &#40;every 6 months&#41; in specialized units and the decisive contribution of nursing and that of primary care physicians&#46; We fully agree with this perception&#46; As internists&#44; we would like to add that our viewpoint and training in caring for a syndrome as complex and comorbid<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">8</span></a> as HF&#44; both with reduced and preserved ejection fraction &#40;which is not asked about in the questionnaire&#41;&#44; provide helpful nuances for patients and physicians&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">One of the study&#39;s controversial aspects was the method for assessing the stability of the patients with HF&#46; If the definition&#44; based on signs and symptoms&#44; is ambiguous &#40;as recognized by the authors&#41;&#44; its estimate should be equally ambiguous&#46; In fact&#44; the correlation between functional class perceived by the patient and by the physician shows a low correlation&#46;<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">9</span></a> More objective methods are therefore needed&#46; Eighty percent of the participants considered the need for increasing the dosage of loop diuretics as a good marker of instability&#46; Seventy-seven percent of the participants found the serial reading of natriuretic peptides useful&#44; which have shown their unquestionable usefulness in diagnosing HF in patients with dyspnea in acute conditions&#46;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">10&#44;11</span></a> The value of natriuretic peptides in the chronic setting of HF is more questionable&#44; as recognized by the CPGs of ESC&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> There are also more objective methods that have shown acceptable performance for detecting subclinical degrees of congestion&#44; such as lung ultrasound&#44;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">12</span></a> the measurement of the diameter and degree of inspiratory collapse of the inferior vena cava<a class="elsevierStyleCrossRefs" href="#bib0175"><span class="elsevierStyleSup">13&#44;14</span></a> and the blood concentration of carbohydrate antigen 125&#44;<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">15</span></a> which are already employed in daily clinical practice&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">14</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">The most controversial aspect in our opinion is the approach when faced with a treated and clinically asymptomatic patient&#46; Let us imagine a patient with a left ventricular ejection fraction of 35&#37;&#44; treated with 20<span class="elsevierStyleHsp" style=""></span>mg enalapril and 5<span class="elsevierStyleHsp" style=""></span>mg bisoprolol daily&#44; with NYHA functional class <span class="elsevierStyleSmallCaps">i</span> HF for the past 18 months&#46; According to the ESC CPGs&#44;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">2</span></a> this patient is undergoing optimal treatment&#46; Would it therefore be reasonable to add mineralocorticoid receptor blockers&#63; Should enalapril be replaced with sacubitril&#47;valsartan&#63;</p><p id="par0055" class="elsevierStylePara elsevierViewall">We agree with the authors that the concept of HF &#8220;stability&#8221; is questionable&#46; In our opinion&#44; this means taking an active approach in searching for subclinical signs of congestion&#59; In other words&#44; assessing the signs of residual congestion&#44;<a class="elsevierStyleCrossRefs" href="#bib0190"><span class="elsevierStyleSup">16&#44;17</span></a> using methods complementary to the purely semiological<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">18&#44;19</span></a> and acting accordingly&#46; Until there are conclusive data&#44; however&#44; the treatment of patients with no residual congestion should be considered optimized if the treatment is in keeping with the CPGs&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">The CPG recommendations will likely change in the near future&#44; but this is not a certainty&#46; Until then&#44; it seems prudent to follow the guidelines&#44; unless a reasoned clinical judgment recommends otherwise&#46; The test of time is essential to obtaining a proper overview of the population behavior of the new drugs&#46; For example&#44; after the success of spironolactone in the RALES study&#44;<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">20</span></a> there was an increase in the incidence of morbidity and mortality attributed to hyperkalemia&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">21</span></a> In addition&#44; in the clinical trial supporting the use of sacubitril&#47;valsartan&#44;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">22</span></a> up to 20&#37; of the patients &#40;10&#37; in each study branch&#41; had to be excluded due to adverse effects or intolerance before entering the actual treatment arms&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">As attractive as it is to question the concept of clinical &#8220;stability&#8221; in HF&#44; we need more than consensus opinions to change a clinical practice supported by years of research and experience&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">As the saying goes&#44; &#8220;one must know the latest but apply the next to last&#46;&#8221;</p></span>"
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        "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as&#58; P&#233;rez Calvo J&#44; Rubio Gracia J&#46; Estabilidad cl&#237;nica en la insuficiencia cardiaca&#46; Mito o realidad&#46; Rev Clin Esp&#46; 2020&#59;220&#58;356&#8211;358&#46;</p>"
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Original language: English
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