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        "resumen" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">El curso cl&#237;nico de la enfermedad pulmonar obstructiva cr&#243;nica &#40;EPOC&#41; se ve salpicado con frecuencia por la presencia de exacerbaciones&#46; Aunque no todos los pacientes sufren exacerbaciones y no todas estas descompensaciones tienen las mismas consecuencias&#44; lo cierto es que en los &#250;ltimos a&#241;os hemos pasado a considerar estos episodios de inestabilidad cl&#237;nica&#44; especialmente si son repetidos&#44; como elementos destacados en la historia natural de la enfermedad por cuanto generan una gran carga asistencial y enormes costes&#44; impactan de forma negativa sobre la calidad de vida de los pacientes&#44; contribuyen de forma decidida a la progresi&#243;n multidimensional de la enfermedad y&#44; finalmente&#44; condicionan su pron&#243;stico&#46; El art&#237;culo revisa la evidencia cient&#237;fica actual acerca del impacto de la exacerbaci&#243;n sobre la evoluci&#243;n de la EPOC&#44; analizando esta repercusi&#243;n desde una perspectiva multidimensional&#46; Adem&#225;s&#44; introduce la necesidad de orientar el manejo de la EPOC hacia los fenotipos cl&#237;nicos&#44; destacando especialmente la importancia del fenotipo agudizador&#44; un fenotipo cl&#237;nico que se caracteriza por presentar repetidos episodios de agudizaci&#243;n&#44; que se asocia con frecuencia a la presencia de tos y expectoraci&#243;n cr&#243;nica&#44; infecci&#243;n bronquial latente y bronquiectasias&#44; y que se caracteriza por presentar mayor morbimortalidad&#46;</p>"
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        "resumen" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The clinical course of chronic obstructive pulmonary disease &#40;COPD&#41; is marked by frequent exacerbations&#46; Not all patients suffer exacerbations and not all decompensations have the same consequences&#59; however&#44; in the last few years&#44; these episodes of clinical instability &#8211; especially if recurrent &#8211; have come to be viewed as a major element in the natural history of the disease insofar as they generate heavy workload and high costs&#44; s&#237;ntonegatively affect patients&#8217; quality of life&#44; contribute to the multidimensional progression of the disease and&#44; finally&#44; affect its prognosis&#46; The present article reviews the current scientific evidence on the impact of exacerbations on the clinical course of COPD and analyzes this impact from a multidimensional perspective&#46; The need to base the management of COPD on clinical phenotypes is discussed&#44; emphasizing the importance of the exacerbation phenotype&#44; a clinical phenotype characterized by frequent exacerbations&#46; This phenotype is often associated with the presence of cough and chronic expectoration&#44; latent bronchial infection and bronchiectasis and leads to higher morbidity and mortality&#46;</p>"
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                            4 => "A&#46; Ericsson"
                            5 => "C&#46; Prutz"
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                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
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                        "tituloSerie" => "Respir Med"
                        "fecha" => "2002"
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                        "paginaInicial" => "700"
                        "paginaFinal" => "708"
                        "link" => array:1 [
                          0 => array:2 [
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                          "autores" => array:1 [
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                        "paginaFinal" => "S4"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12647938"
                            "web" => "Medline"
                          ]
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                            2 => "E&#46;A&#46; Paul"
                            3 => "J&#46;C&#46; Bestall"
                            4 => "D&#46;J&#46; Jeffries"
                            5 => "J&#46;A&#46; Wedzicha"
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                        "tituloSerie" => "Am J Respir Crit Care Med"
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                        "paginaInicial" => "1418"
                        "paginaFinal" => "1422"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9603117"
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                        "paginaFinal" => "364"
                        "link" => array:1 [
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                          ]
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                      ]
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                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200912-1843CC"
                      "Revista" => array:6 [
                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "2010"
                        "volumen" => "182"
                        "paginaInicial" => "598"
                        "paginaFinal" => "604"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/20522794"
                            "web" => "Medline"
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                ]
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                      "titulo" => "Frequent exacerbations of chronic obstructive pulmonary disease- a distinct phenotype&#63;"
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                          "etal" => false
                          "autores" => array:1 [
                            0 => "D&#46;P&#46; Tashkin"
                          ]
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                    ]
                  ]
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                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "N Engl J Med"
                        "fecha" => "2010"
                        "volumen" => "16"
                        "paginaInicial" => "1183"
                        "paginaFinal" => "1184"
                      ]
                    ]
                  ]
                ]
              ]
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              "identificador" => "bib12"
              "etiqueta" => "12&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "What is &#40;and what is not&#41; a COPD exacerbation&#58; thoughs from the new GOLD guidelines"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "J&#46;R&#46; Hurst"
                            1 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1136/thx.2007.077883"
                      "Revista" => array:6 [
                        "tituloSerie" => "Thorax"
                        "fecha" => "2007"
                        "volumen" => "62"
                        "paginaInicial" => "198"
                        "paginaFinal" => "199"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17329557"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            12 => array:3 [
              "identificador" => "bib13"
              "etiqueta" => "13&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Underreporting exacerbation of chronic obstructive pulmonary disease in a longitudinal cohort"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "L&#46; Langsetmo"
                            1 => "R&#46;W&#46; Platt"
                            2 => "P&#46; Ernst"
                            3 => "J&#46; Bourbeau"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200708-1290OC"
                      "Revista" => array:6 [
                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "2008"
                        "volumen" => "177"
                        "paginaInicial" => "396"
                        "paginaFinal" => "401"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18048806"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            13 => array:3 [
              "identificador" => "bib14"
              "etiqueta" => "14&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Novel insights into the aetiology and pathophysiology of increased airway inflammation during COPD exacerbations"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "M&#46; Tsoumakidou"
                            1 => "N&#46;M&#46; Siafakas"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1186/1465-9921-7-80"
                      "Revista" => array:5 [
                        "tituloSerie" => "Respiratory Research"
                        "fecha" => "2006"
                        "volumen" => "7"
                        "paginaInicial" => "80"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16716229"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            14 => array:3 [
              "identificador" => "bib15"
              "etiqueta" => "15&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Airway and systemic inflammation and decline in lung function in patients with COPD"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "G&#46;C&#46; Donaldson"
                            1 => "T&#46;A&#46;R&#46; Seemungal"
                            2 => "I&#46;S&#46; Patel"
                            3 => "A&#46; Bhowmik"
                            4 => "T&#46;M&#46;A&#46; Wilkinson"
                            5 => "J&#46;R&#46; Hurst"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.128.4.1995"
                      "Revista" => array:6 [
                        "tituloSerie" => "Chest"
                        "fecha" => "2005"
                        "volumen" => "128"
                        "paginaInicial" => "1995"
                        "paginaFinal" => "2004"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16236847"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            15 => array:3 [
              "identificador" => "bib16"
              "etiqueta" => "16&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Use of plasma biomarkers at exacerbation of chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "J&#46;R&#46; Hurst"
                            1 => "G&#46;C&#46; Donaldson"
                            2 => "W&#46;R&#46; Perera"
                            3 => "T&#46;M&#46; Wilkinson"
                            4 => "J&#46;A&#46; Bilello"
                            5 => "G&#46;W&#46; Hagan"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200604-506OC"
                      "Revista" => array:6 [
                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "2006"
                        "volumen" => "174"
                        "paginaInicial" => "867"
                        "paginaFinal" => "874"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16799074"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            16 => array:3 [
              "identificador" => "bib17"
              "etiqueta" => "17&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Factors associated with increased risk of exacerbation and hospital admission in a cohort of ambulatory COPD patients&#58; a multiple logistic regression analysis"
                      "autores" => array:1 [
                        0 => array:3 [
                          "colaboracion" => "on behalf of the EOLO group"
                          "etal" => false
                          "autores" => array:6 [
                            0 => "M&#46; Miravitlles"
                            1 => "T&#46; Guerrero"
                            2 => "C&#46; Mayordomo"
                            3 => "L&#46; S&#225;nchez-Agudo"
                            4 => "F&#46; Nicolau"
                            5 => "J&#46;L&#46; Seg&#250;"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "67462"
                      "Revista" => array:6 [
                        "tituloSerie" => "Respiration"
                        "fecha" => "2000"
                        "volumen" => "67"
                        "paginaInicial" => "495"
                        "paginaFinal" => "501"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11070451"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            17 => array:3 [
              "identificador" => "bib18"
              "etiqueta" => "18&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Susceptibility to exacerbation in chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "J&#46;R&#46; Hurst"
                            1 => "J&#46; Vestbo"
                            2 => "A&#46; Anzeto"
                            3 => "N&#46; Locantore"
                            4 => "H&#46; M&#252;llerova"
                            5 => "R&#46; Tal-Singer"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1056/NEJMoa0909883"
                      "Revista" => array:6 [
                        "tituloSerie" => "N Engl J Med"
                        "fecha" => "2010"
                        "volumen" => "363"
                        "paginaInicial" => "1128"
                        "paginaFinal" => "1138"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/20843247"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            18 => array:3 [
              "identificador" => "bib19"
              "etiqueta" => "19&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Frequent chronic obstructive pulmonary disease exacerbators&#58; how much real&#44; how much fictitious&#63;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "J&#46;J&#46; Soler-Catalu&#241;a"
                            1 => "R&#46; Rodr&#237;guez-Rois&#237;n"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.3109/15412555.2010.496817"
                      "Revista" => array:6 [
                        "tituloSerie" => "COPD"
                        "fecha" => "2010"
                        "volumen" => "7"
                        "paginaInicial" => "276"
                        "paginaFinal" => "284"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/20673037"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            19 => array:3 [
              "identificador" => "bib20"
              "etiqueta" => "20&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Severe exacerbations and BODE index&#58; two independent risk factors for death in male COPD patients"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "J&#46;J&#46; Soler-Catalu&#241;a"
                            1 => "M&#46;A&#46; Mart&#237;nez-Garc&#237;a"
                            2 => "L&#46; S&#225;nchez"
                            3 => "M&#46; Perpi&#241;&#225;"
                            4 => "P&#46; Rom&#225;n"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.rmed.2008.12.005"
                      "Revista" => array:6 [
                        "tituloSerie" => "Respir Med"
                        "fecha" => "2009"
                        "volumen" => "103"
                        "paginaInicial" => "692"
                        "paginaFinal" => "699"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19131231"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            20 => array:3 [
              "identificador" => "bib21"
              "etiqueta" => "21&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Predictors of mortality in patients with stable COPD"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "C&#46; Esteban"
                            1 => "J&#46;M&#46; Quintana"
                            2 => "M&#46; Aburto"
                            3 => "J&#46; Moraza"
                            4 => "M&#46; Egurrola"
                            5 => "P&#46;P&#46; Espa&#241;a"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1007/s11606-008-0783-x"
                      "Revista" => array:6 [
                        "tituloSerie" => "J Gen Intern Med"
                        "fecha" => "2008"
                        "volumen" => "23"
                        "paginaInicial" => "1829"
                        "paginaFinal" => "1834"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18795373"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            21 => array:3 [
              "identificador" => "bib22"
              "etiqueta" => "22&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The effect of airflow limitation on the cause of death in patients with COPD"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "I&#46; Alfageme"
                            1 => "N&#46; Reyes"
                            2 => "M&#46; Merino"
                            3 => "A&#46; Reina"
                            4 => "J&#46; Gallego"
                            5 => "J&#46; Lima"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1177/1479972310368692"
                      "Revista" => array:6 [
                        "tituloSerie" => "Chron Respir Dis"
                        "fecha" => "2010"
                        "volumen" => "7"
                        "paginaInicial" => "135"
                        "paginaFinal" => "145"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/20688891"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            22 => array:3 [
              "identificador" => "bib23"
              "etiqueta" => "23&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The impact of COPD on hospital resources&#58; the specific burden of COPD patients with high rates of hospitalization"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "J&#46;J&#46; Soler"
                            1 => "L&#46; S&#225;nchez"
                            2 => "M&#46; Latorre"
                            3 => "J&#46; Alamar"
                            4 => "P&#46; Rom&#225;n"
                            5 => "M&#46; Perpi&#241;&#225;"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Arch Bronconeumol"
                        "fecha" => "2001"
                        "volumen" => "37"
                        "paginaInicial" => "375"
                        "paginaFinal" => "381"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/11674937"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            23 => array:3 [
              "identificador" => "bib24"
              "etiqueta" => "24&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Acute exaerbation of COPD&#58; factors associated with poor outcome"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "N&#46;A&#46; Dewan"
                            1 => "S&#46; Rafique"
                            2 => "B&#46; Kanwar"
                            3 => "H&#46; Satpathy"
                            4 => "K&#46; Ryschon"
                            5 => "G&#46;S&#46; Tillotson"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Chest"
                        "fecha" => "2000"
                        "volumen" => "117"
                        "paginaInicial" => "662"
                        "paginaFinal" => "671"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10712989"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            24 => array:3 [
              "identificador" => "bib25"
              "etiqueta" => "25&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Risk factors of readmission to hospital for a COPD exacerbation&#58; a prospective study"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "J&#46; Garc&#237;a-Aymerich"
                            1 => "E&#46; Farrero"
                            2 => "M&#46;A&#46; Felez"
                            3 => "J&#46; Izquierdo"
                            4 => "R&#46;M&#46; Marrades"
                            5 => "J&#46;M&#46; Ant&#243;"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Thorax"
                        "fecha" => "2003"
                        "volumen" => "58"
                        "paginaInicial" => "100"
                        "paginaFinal" => "105"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12554887"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            25 => array:3 [
              "identificador" => "bib26"
              "etiqueta" => "26&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Risk indexes for exacerbations and hospitalizations due to COPD"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "D&#46;E&#46; Niewoehner"
                            1 => "Y&#46; Lokhnygina"
                            2 => "K&#46; Rice"
                            3 => "W&#46;G&#46; Kuschner"
                            4 => "A&#46; Sharafkhaneh"
                            5 => "G&#46;A&#46; Sarosi"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.06-1316"
                      "Revista" => array:6 [
                        "tituloSerie" => "Chest"
                        "fecha" => "2007"
                        "volumen" => "131"
                        "paginaInicial" => "20"
                        "paginaFinal" => "28"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17218552"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            26 => array:3 [
              "identificador" => "bib27"
              "etiqueta" => "27&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Relation of sputum inflammatory markers to symptoms and lung function changes in COPD exacerbations"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "A&#46; BhowmiK"
                            1 => "T&#46;A&#46;R&#46; Seemungal"
                            2 => "R&#46;J&#46; Sapsford"
                            3 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Thorax"
                        "fecha" => "2000"
                        "volumen" => "55"
                        "paginaInicial" => "114"
                        "paginaFinal" => "120"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10639527"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            27 => array:3 [
              "identificador" => "bib28"
              "etiqueta" => "28&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Relationship between bacterial colonisation and the frequency&#44; character&#44; and severity of COPD exacerbations"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "I&#46;S&#46; Patel"
                            1 => "T&#46;A&#46;R&#46; Seemungal"
                            2 => "M&#46; Wiks"
                            3 => "S&#46;J&#46; Lloyd-Owen"
                            4 => "G&#46;C&#46; Donaldson"
                            5 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Thorax"
                        "fecha" => "2002"
                        "volumen" => "57"
                        "paginaInicial" => "759"
                        "paginaFinal" => "764"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12200518"
                            "web" => "Medline"
                          ]
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                ]
              ]
            ]
            28 => array:3 [
              "identificador" => "bib29"
              "etiqueta" => "29&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Cough and sputum production are associated with frequent exacerbations and hospitalizations in COPD subjects"
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                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "P&#46;R&#46; Burgel"
                            1 => "P&#46; Nesme-Meyer"
                            2 => "P&#46; Chanez"
                            3 => "D&#46; Caillaud"
                            4 => "P&#46; Carr&#233;"
                            5 => "T&#46; Perez"
                          ]
                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.08-2062"
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                        "tituloSerie" => "Chest"
                        "fecha" => "2009"
                        "volumen" => "135"
                        "paginaInicial" => "975"
                        "paginaFinal" => "982"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19017866"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            29 => array:3 [
              "identificador" => "bib30"
              "etiqueta" => "30&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Risk factors of emergency care and admissions in COPD patients with high consumption of health resources"
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                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "J&#46;J&#46; Soler"
                            1 => "L&#46; S&#225;nchez"
                            2 => "P&#46; Rom&#225;n"
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                            4 => "M&#46; Perpi&#241;&#225;"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Respir Med"
                        "fecha" => "2004"
                        "volumen" => "98"
                        "paginaInicial" => "318"
                        "paginaFinal" => "329"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/15072172"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            30 => array:3 [
              "identificador" => "bib31"
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              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Relationship between depression and exacerbations in COPD"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "J&#46;K&#46; Quint"
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                            2 => "G&#46;C&#46; Donaldson"
                            3 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1183/09031936.00120107"
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "2008"
                        "volumen" => "32"
                        "paginaInicial" => "53"
                        "paginaFinal" => "60"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18321938"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            31 => array:3 [
              "identificador" => "bib32"
              "etiqueta" => "32&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Muscle weakness is related to utilization of health care resources in COPD patients"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "M&#46; Decramer"
                            1 => "R&#46; Gosselink"
                            2 => "T&#46; Troosters"
                            3 => "M&#46; Verschueren"
                            4 => "G&#46; Evers"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "1997"
                        "volumen" => "10"
                        "paginaInicial" => "417"
                        "paginaFinal" => "423"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9042643"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            32 => array:3 [
              "identificador" => "bib33"
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              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Impact of gastro-oesophageal reflux disease symptoms on COPD exacerbation"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "K&#46; Terada"
                            1 => "S&#46; Muro"
                            2 => "S&#46; Sato"
                            3 => "T&#46; Ohara"
                            4 => "A&#46; Haruna"
                            5 => "S&#46; Marumo"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1136/thx.2007.092858"
                      "Revista" => array:6 [
                        "tituloSerie" => "Thorax"
                        "fecha" => "2008"
                        "volumen" => "63"
                        "paginaInicial" => "951"
                        "paginaFinal" => "955"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18535116"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            33 => array:3 [
              "identificador" => "bib34"
              "etiqueta" => "34&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "A single nucleotide polymorphism in the CCL1 gene predicts acute exacerbations in chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "N&#46; Takabatake"
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                            2 => "S&#46; Abe"
                            3 => "T&#46; Wada"
                            4 => "J&#46;I&#46; Machiya"
                            5 => "A&#46; Igarashi"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200603-443OC"
                      "Revista" => array:6 [
                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "2006"
                        "volumen" => "174"
                        "paginaInicial" => "875"
                        "paginaFinal" => "885"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16864713"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            34 => array:3 [
              "identificador" => "bib35"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Mannose-binding lectin gene polymorphism predicts hospital admissions for COPD infections"
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                          "etal" => true
                          "autores" => array:6 [
                            0 => "I&#46;A&#46; Yang"
                            1 => "S&#46;L&#46; Seeney"
                            2 => "J&#46;M&#46; Wolter"
                            3 => "E&#46;M&#46; Anders"
                            4 => "J&#46;G&#46; McCormack"
                            5 => "A&#46;M&#46; Tunnicliffe"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1038/sj.gene.6363961"
                      "Revista" => array:6 [
                        "tituloSerie" => "Genes and Immunity"
                        "fecha" => "2003"
                        "volumen" => "4"
                        "paginaInicial" => "269"
                        "paginaFinal" => "274"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12761563"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            35 => array:3 [
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Polymorphic variation in surfactant protein B is associated with COPD exacerbations"
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                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "M&#46;G&#46; Foreman"
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                            2 => "C&#46;P&#46; Hersh"
                            3 => "V&#46;J&#46; Carey"
                            4 => "V&#46;S&#46; Fan"
                            5 => "J&#46;J&#46; Reilly"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1183/09031936.00040208"
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "2008"
                        "volumen" => "32"
                        "paginaInicial" => "938"
                        "paginaFinal" => "944"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18550614"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            36 => array:3 [
              "identificador" => "bib37"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "COPD exacerbations&#46; Pathophysiology"
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                          "etal" => false
                          "autores" => array:2 [
                            0 => "D&#46;E&#46; O&#8217;Donnell"
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                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1136/thx.2005.041830"
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                        "tituloSerie" => "Thorax"
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                        "volumen" => "61"
                        "paginaInicial" => "354"
                        "paginaFinal" => "361"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16565268"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            37 => array:3 [
              "identificador" => "bib38"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Physiologic changes during symptom recovery from moderate exacerbation of COPD"
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                            0 => "C&#46;M&#46; Parker"
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                            2 => "S&#46;D&#46; Aaron"
                            3 => "K&#46;A&#46; Webb"
                            4 => "D&#46;E&#46; O&#8217;Donnell"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1183/09031936.05.00136304"
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                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "2005"
                        "volumen" => "26"
                        "paginaInicial" => "420"
                        "paginaFinal" => "428"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16135722"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            38 => array:3 [
              "identificador" => "bib39"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Longitudinal follow-up of systemic inflammation after acute exacerbations of COPD"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.rmed.2007.05.026"
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                        "tituloSerie" => "Respir Med"
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                        "volumen" => "101"
                        "paginaInicial" => "2409"
                        "paginaFinal" => "2415"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17644367"
                            "web" => "Medline"
                          ]
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                ]
              ]
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            39 => array:3 [
              "identificador" => "bib40"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Patient&#39;s perception of exacerbation of COPD &#8211; the PERCEIVE study"
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                            4 => "M&#46; Fargel"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.rmed.2006.07.010"
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                        "paginaInicial" => "453"
                        "paginaFinal" => "460"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16938447"
                            "web" => "Medline"
                          ]
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                ]
              ]
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              "identificador" => "bib41"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Patient undestainding&#44; detection&#44; and experience of COPD exacerbations&#46; An observational&#44; interview-based study"
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                  "host" => array:1 [
                    0 => array:2 [
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                        "tituloSerie" => "Chest"
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                        "paginaFinal" => "142"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16840393"
                            "web" => "Medline"
                          ]
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                ]
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Effect of exacerbations on quality of life in patients with chronic obstructive pulmonary disease&#58; a 2 year follow up study"
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                  "host" => array:1 [
                    0 => array:1 [
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                        "paginaFinal" => "395"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/15115864"
                            "web" => "Medline"
                          ]
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                      ]
                    ]
                  ]
                ]
              ]
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                0 => array:2 [
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                    0 => array:2 [
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                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
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                        "paginaInicial" => "318"
                        "paginaFinal" => "329"
                      ]
                    ]
                  ]
                ]
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            43 => array:3 [
              "identificador" => "bib44"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Impact on patients&#8217; health status following early identification of a COPD exacerbation"
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                        0 => array:2 [
                          "etal" => false
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                            3 => "N&#46; Pinsky"
                            4 => "J&#46; Lee"
                            5 => "G&#46; Ruberto"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1183/09031936.00166606"
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
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                        "volumen" => "30"
                        "paginaInicial" => "907"
                        "paginaFinal" => "913"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17715163"
                            "web" => "Medline"
                          ]
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                    ]
                  ]
                ]
              ]
            ]
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              "identificador" => "bib45"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Exacerbations and lung function decline in COPD&#58; new insights in current and ex-smokers"
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                            4 => "N&#46;M&#46; Siafakas"
                            5 => "J&#46; Milic Emili"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.rmed.2006.10.012"
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                        "tituloSerie" => "Respir Med"
                        "fecha" => "2007"
                        "volumen" => "101"
                        "paginaInicial" => "1305"
                        "paginaFinal" => "1312"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17112715"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
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              "identificador" => "bib46"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Impact of COPD exacerbations on patient-centered outcomes"
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                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "C&#46;G&#46; Cote"
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                            2 => "B&#46;R&#46; Celli"
                          ]
                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.06-1610"
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                        "tituloSerie" => "Chest"
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                        "volumen" => "131"
                        "paginaInicial" => "696"
                        "paginaFinal" => "704"
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                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/17356082"
                            "web" => "Medline"
                          ]
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            46 => array:3 [
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                    0 => array:2 [
                      "titulo" => "Respiratory syncytial virus&#44; airway inflammation&#44; and FEV<span class="elsevierStyleInf">1</span> decline in patients with chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "T&#46;M&#46;A&#46; Wilkinson"
                            1 => "G&#46;C&#46; Donaldson"
                            2 => "S&#46;L&#46; Johnston"
                            3 => "P&#46;J&#46;M&#46; Openshay"
                            4 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200509-1489OC"
                      "Revista" => array:6 [
                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "2006"
                        "volumen" => "173"
                        "paginaInicial" => "871"
                        "paginaFinal" => "876"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16456141"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
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            47 => array:3 [
              "identificador" => "bib48"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Systemic and upper and lower airway inflammation at exacerbation of chronic obstructive pulmonary disease"
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                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "J&#46;R&#46; Hurst"
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                            2 => "T&#46;M&#46; Wilkinson"
                            3 => "G&#46;C&#46; Donaldson"
                            4 => "J&#46;A&#46; Wedzicha"
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/rccm.200505-704OC"
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                        "tituloSerie" => "Am J Respir Crit Care Med"
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                        "paginaFinal" => "78"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16179639"
                            "web" => "Medline"
                          ]
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                      ]
                    ]
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                ]
              ]
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              "identificador" => "bib49"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Increased risk of myocardial infarction and stroke following exacerbation of chronic obstructive pulmonary disease"
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                          "etal" => false
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                            0 => "G&#46;C&#46; Donaldson"
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                            2 => "C&#46;J&#46; Smith"
                            3 => "R&#46;B&#46; Hubbar"
                            4 => "J&#46;A&#46; Wedzicha"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.09-2029"
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                        "tituloSerie" => "Chest"
                        "fecha" => "2010"
                        "volumen" => "137"
                        "paginaInicial" => "1091"
                        "paginaFinal" => "1097"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/20022970"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            49 => array:3 [
              "identificador" => "bib50"
              "etiqueta" => "50&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Troponin T elevation and long-term mortality afther chronic obstructive pulmonary disease exacerbation"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "P&#46;H&#46; Brekke"
                            1 => "T&#46; Olmland"
                            2 => "S&#46;H&#46; Holmedadl"
                            3 => "P&#46; Smith"
                            4 => "V&#46; Soyseth"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1183/09031936.00015807"
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "2008"
                        "volumen" => "31"
                        "paginaInicial" => "563"
                        "paginaFinal" => "570"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18032444"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            50 => array:3 [
              "identificador" => "bib51"
              "etiqueta" => "51&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Determinants of cardiac troponin T elevation in COPD exacerbation &#8211; a cross-sectional study"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "P&#46;H&#46; Brekke"
                            1 => "T&#46; Omland"
                            2 => "S&#46;H&#46; Holmedal"
                            3 => "P&#46; Smith"
                            4 => "V&#46; Soyseth"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1186/1471-2466-9-35"
                      "Revista" => array:5 [
                        "tituloSerie" => "BMC Pulm Med"
                        "fecha" => "2009"
                        "volumen" => "9"
                        "paginaInicial" => "35"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19615100"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            51 => array:3 [
              "identificador" => "bib52"
              "etiqueta" => "52&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The effect of diabetes mellitus on the outcome of patients with chronic obstructive pulmonary disease exacerbated due to respiratory infections"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => "S&#46; Laukides"
                            1 => "D&#46; Polyzogopoulos"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Respiration"
                        "fecha" => "1996"
                        "volumen" => "63"
                        "paginaInicial" => "170"
                        "paginaFinal" => "173"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8739488"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            52 => array:3 [
              "identificador" => "bib53"
              "etiqueta" => "53&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Comorbidity contributes to predict mortality of patients with chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "R&#46; Antonelli"
                            1 => "L&#46; Fuso"
                            2 => "M&#46; De Rosa"
                            3 => "F&#46; Forastiere"
                            4 => "E&#46; Rapiti"
                            5 => "B&#46; Nardecchia"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Respir J"
                        "fecha" => "1997"
                        "volumen" => "10"
                        "paginaInicial" => "2794"
                        "paginaFinal" => "2800"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9493663"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            53 => array:3 [
              "identificador" => "bib54"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Systemic corticosteroids for acute exacerbations of chronic obstructive pulmonary disease"
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                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "R&#46;R&#46; Wood-Baker"
                            1 => "P&#46;G&#46; Gibson"
                            2 => "M&#46; Hannay"
                            3 => "E&#46;H&#46; Walters"
                            4 => "J&#46;A&#46; Walters"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:3 [
                        "tituloSerie" => "Cochrane Database Syst Rev"
                        "fecha" => "2005"
                        "numero" => "1"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            54 => array:3 [
              "identificador" => "bib55"
              "etiqueta" => "55&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Hyperglycaemia is associated with poor outcomes in patient admited to hospital with acute exacerbations of chronic obstructive pulmonary disease"
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                        0 => array:2 [
                          "etal" => true
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                            1 => "C&#46;H&#46; Janaway"
                            2 => "B&#46;J&#46; Philips"
                            3 => "A&#46;L&#46; Brennan"
                            4 => "D&#46;L&#46; Baines"
                            5 => "D&#46;M&#46; Wood"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1136/thx.2005.051029"
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                        "tituloSerie" => "Thorax"
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                        "volumen" => "61"
                        "paginaInicial" => "284"
                        "paginaFinal" => "289"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/16449265"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            55 => array:3 [
              "identificador" => "bib56"
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              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The metabolic syndrome in patients with chronic obstructive pulmonary disease"
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                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
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                            2 => "V&#46; Duguay"
                            3 => "A&#46;M&#46; Bezeau"
                            4 => "J&#46; Leblanc"
                            5 => "J&#46; Jobin"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Cardipulm Rehabil"
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                        "paginaInicial" => "226"
                        "paginaFinal" => "232"
                      ]
                    ]
                  ]
                ]
              ]
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            56 => array:3 [
              "identificador" => "bib57"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "The metabolic syndrome in patients with chronic bronchitis and COPD&#58; frequency and associated consequences for systemic inflammation and physical inactivity"
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                        0 => array:2 [
                          "etal" => true
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                            2 => "A&#46; Kirsten"
                            3 => "K&#46;C&#46; M&#252;ller"
                            4 => "G&#46; Krestschmar"
                            5 => "T&#46; Meyer"
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                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1378/chest.09-0393"
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                        "tituloSerie" => "Chest"
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                        "volumen" => "136"
                        "paginaInicial" => "1039"
                        "paginaFinal" => "1046"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19542257"
                            "web" => "Medline"
                          ]
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                    ]
                  ]
                ]
              ]
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            57 => array:3 [
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Airflow obstruction and metabolic syndrome&#58; the Guangzhou Biobank Cohort Study"
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                            3 => "G&#46;N&#46; Thomas"
                            4 => "M&#46;R&#46; Miller"
                            5 => "W&#46;S&#46; Zhang"
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                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
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                        "tituloSerie" => "Eur Respir J"
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                        "volumen" => "35"
                        "paginaInicial" => "317"
                        "paginaFinal" => "323"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19574332"
                            "web" => "Medline"
                          ]
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                ]
              ]
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            58 => array:3 [
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Metabolic syndrome is associated with increased risk of acute exacerbation of COPD&#58; a preliminary study"
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                            5 => "A&#46; G&#252;rsoy"
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                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "Endocr"
                        "fecha" => "2010"
                        "volumen" => "38"
                        "paginaInicial" => "76"
                        "paginaFinal" => "82"
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                    ]
                  ]
                ]
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            59 => array:3 [
              "identificador" => "bib60"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Nutritional state during COPD exacerbation&#58; clinical and prognostic implications"
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                            4 => "A&#46; Macha"
                            5 => "F&#46; Rodr&#237;guez-Salvan&#233;s"
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                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1159/000205960"
                      "Revista" => array:6 [
                        "tituloSerie" => "Ann Nutr Metab"
                        "fecha" => "2009"
                        "volumen" => "54"
                        "paginaInicial" => "52"
                        "paginaFinal" => "58"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19252400"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            60 => array:3 [
              "identificador" => "bib61"
              "etiqueta" => "61&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "A prospective study of decline in fat free mass and skeletal muscle strength in chronic obstructive pulmonary disease"
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                        0 => array:2 [
                          "etal" => true
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                            0 => "N&#46;S&#46; Hopkinson"
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                            2 => "M&#46;J&#46; Dayer"
                            3 => "E&#46;B&#46; Swallow"
                            4 => "T&#46;T&#46; Hansel"
                            5 => "J&#46; Moxham"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:4 [
                        "tituloSerie" => "Resp Res"
                        "fecha" => "2007"
                        "volumen" => "8"
                        "paginaInicial" => "25"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            61 => array:3 [
              "identificador" => "bib62"
              "etiqueta" => "62&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Outcomes following acute exacerbation of severe chronic obstructive lung disease"
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                        0 => array:2 [
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                            2 => "C&#46; Thomas"
                            3 => "F&#46;E&#46; Harrell Jr&#46;"
                            4 => "N&#46; Desbiens"
                            5 => "W&#46;J&#46; Fulkerson"
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                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1164/ajrccm.154.4.8887592"
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                        "tituloSerie" => "Am J Respir Crit Care Med"
                        "fecha" => "1996"
                        "volumen" => "154"
                        "paginaInicial" => "959"
                        "paginaFinal" => "967"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8887592"
                            "web" => "Medline"
                          ]
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                    ]
                  ]
                ]
              ]
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            62 => array:3 [
              "identificador" => "bib63"
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                    0 => array:2 [
                      "titulo" => "Mortality after hospitalization for COPD"
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                            2 => "A&#46; Ochoa de Echag&#252;en"
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                            4 => "S&#46; Quintana"
                            5 => "J&#46;L&#46; Heredia"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
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                        "paginaInicial" => "1441"
                        "paginaFinal" => "1448"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/12006426"
                            "web" => "Medline"
                          ]
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                    ]
                  ]
                ]
              ]
            ]
            63 => array:3 [
              "identificador" => "bib64"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Mortality and mortality-related factors after hospitalization for acute exacerbation of COPD"
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                        0 => array:2 [
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Información de la revista
Vol. 211. Núm. S2.
Nuevos tratamientos en epoc
Páginas 3-12 (marzo 2011)
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Vol. 211. Núm. S2.
Nuevos tratamientos en epoc
Páginas 3-12 (marzo 2011)
Nuevos tratamientos en epoc
Impacto de las exacerbaciones en la evolución de la EPOC
Impact of exacerbations on the clinical course of chronic obstructive pulmonary disease
J.J. Soler-Cataluña
Autor para correspondencia
jjsoler@telefonica.net

Autor para correspondencia.
, M.A. Martínez-García, P. Catalán Serra, P. Román Sánchez
Unidad de Neumología, Servicio de Medicina Interna, Hospital General de Requena, Valencia, España
Información del artículo
Resumen

El curso clínico de la enfermedad pulmonar obstructiva crónica (EPOC) se ve salpicado con frecuencia por la presencia de exacerbaciones. Aunque no todos los pacientes sufren exacerbaciones y no todas estas descompensaciones tienen las mismas consecuencias, lo cierto es que en los últimos años hemos pasado a considerar estos episodios de inestabilidad clínica, especialmente si son repetidos, como elementos destacados en la historia natural de la enfermedad por cuanto generan una gran carga asistencial y enormes costes, impactan de forma negativa sobre la calidad de vida de los pacientes, contribuyen de forma decidida a la progresión multidimensional de la enfermedad y, finalmente, condicionan su pronóstico. El artículo revisa la evidencia científica actual acerca del impacto de la exacerbación sobre la evolución de la EPOC, analizando esta repercusión desde una perspectiva multidimensional. Además, introduce la necesidad de orientar el manejo de la EPOC hacia los fenotipos clínicos, destacando especialmente la importancia del fenotipo agudizador, un fenotipo clínico que se caracteriza por presentar repetidos episodios de agudización, que se asocia con frecuencia a la presencia de tos y expectoración crónica, infección bronquial latente y bronquiectasias, y que se caracteriza por presentar mayor morbimortalidad.

Palabras clave:
EPOC
Agudización
Fenotipo
Abstract

The clinical course of chronic obstructive pulmonary disease (COPD) is marked by frequent exacerbations. Not all patients suffer exacerbations and not all decompensations have the same consequences; however, in the last few years, these episodes of clinical instability – especially if recurrent – have come to be viewed as a major element in the natural history of the disease insofar as they generate heavy workload and high costs, síntonegatively affect patients’ quality of life, contribute to the multidimensional progression of the disease and, finally, affect its prognosis. The present article reviews the current scientific evidence on the impact of exacerbations on the clinical course of COPD and analyzes this impact from a multidimensional perspective. The need to base the management of COPD on clinical phenotypes is discussed, emphasizing the importance of the exacerbation phenotype, a clinical phenotype characterized by frequent exacerbations. This phenotype is often associated with the presence of cough and chronic expectoration, latent bronchial infection and bronchiectasis and leads to higher morbidity and mortality.

Keywords:
COPD
Exacerbation
Phenotype

Artículo

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