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        "titulo" => "Abstract"
        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">To study the influence of cardiac status on the length of mechanical ventilation&#44; outcome and disease severity in patients admitted to an Intensive Care Unit &#40;ICU&#41; with exacerbation of chronic respiratory failure&#46;</p> <span class="elsevierStyleSectionTitle">Design and setting</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">A 30-month prospective study in a 14 bed ICU</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Fifty nine patients were enrolled&#44; with a mean age 74&#46;7 &#43;&#47;- 9&#46;7 years&#44; mean length of ventilator support 10&#46;8 &#43;&#47;- 12&#46;6 days&#44; and mean APACHE II score 23 &#43;&#47;- 8&#46;3&#46; Within the first 24 hours of admittance&#44; cardiac chamber dimensions&#44; inferior vena cava &#40;IVC&#41;&#44; and mitral transvalvular Doppler were evaluated using transthoracic echocardiography&#59; the cardiac rhythm was recorded &#40;presence of sinus rhythm or atrial fibrillation&#41;&#46; Blood gases were evaluated at discharge&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Greater length of ventilation was observed in patients presenting atrial fibrillation &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;027&#41;&#44; particularly when a dilated IVC was also present &#40;&#62;20<span class="elsevierStyleHsp" style=""></span>mm&#44; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;004&#41;&#46; A high level of serum bicarbonate &#40;&#62;35<span class="elsevierStyleHsp" style=""></span>mEq&#47;l&#41;&#44; was also related with longer ventilation &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46; 04&#41;&#46; Twelve patients died&#46; Mortality was related to the presence of a dilated right ventricle &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;03&#41; and a ratio between right and left ventricle &#62; 0&#46; 6 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;04&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusion</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Patients submitted to mechanical ventilation due to exacerbation of chronic respiratory failure which present atrial fibrillation require a longer ventilation period&#44; particularly if a dilated IVC is also present&#46; Patients with dilated right cardiac chambers are at an increased risk of a fatal outcome&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objectivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">estudar determinantes cardiovasculares condicionantes do tempo de ventila&#231;&#227;o&#44; mortalidade e gravidade de doen&#231;a em doentes admitidos numa unidade de cuidados intensivos para ventila&#231;&#227;o mec&#226;nica por exacerba&#231;&#227;o de insufici&#234;ncia respirat&#243;ria cr&#243;nica&#46;</p> <span class="elsevierStyleSectionTitle">Desenho e local</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Estudo prospectivo&#44; com dura&#231;&#227;o de 30 meses numa unidade de cuidados intensivos m&#233;dico-cir&#250;rgica com 14 camas&#46;</p> <span class="elsevierStyleSectionTitle">Material e m&#233;todos</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Estudados 59 doentes com idade m&#233;dia de 74&#44;7 &#43;&#47;- 9&#44;7 anos&#44; tempo m&#233;dio de ventila&#231;&#227;o de 10&#44;8 &#43;&#47;- 12&#44;6 dias&#44; APACHE II m&#233;dio de 23 &#43;&#47;- 8&#44;3&#46; Avaliaram-se par&#226;metros ecocardiogr&#225;ficos &#40;dimens&#245;es das cavidades&#44; d&#233;bito card&#237;aco&#44; estudo Doppler do fluxo transvalvular mitral&#44; estudo da veia cava inferior&#41; e electrocardiogr&#225;ficos &#40;presen&#231;a de ritmo sinusal ou fibrilha&#231;&#227;o auricular&#41; nas primeiras 24 horas de internamento na Unidade e par&#226;metros gasim&#233;tricos &#224; sa&#237;da&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Um tempo de ventila&#231;&#227;o mais prolongado associou-se &#224; presen&#231;a de fibrilha&#231;&#227;o auricular &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;027&#41;&#44; &#224; presen&#231;a conjunta de fibrilha&#231;&#227;o auricular e uma veia cava inferior dilatada &#40;&#62; 20<span class="elsevierStyleHsp" style=""></span>mm p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;004&#41; e com n&#237;veis s&#233;ricos de bicarbonato &#62; 35mEq&#47;l na gasimetria obtida &#224; sa&#237;da &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;04&#41;&#46; Verificaram-se 12 &#243;bitos&#46; A mortalidade associou-se &#224; presen&#231;a de dilata&#231;&#227;o do ventr&#237;culo direito &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;03&#41; e a uma rela&#231;&#227;o entre o ventr&#237;culo direito e o esquerdo &#62; 0&#44;6 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;04&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclus&#227;o</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Nos doentes submetidos a ventila&#231;&#227;o mec&#226;nica por exacerba&#231;&#227;o de insufici&#234;ncia respirat&#243;ria cr&#243;nica&#44; a presen&#231;a de fibrilha&#231;&#227;o auricular indica a possibilidade de um per&#237;odo de ventila&#231;&#227;o mais prolongado&#44; em especial se houver concomitantemente uma veia cava inferior com di&#226;metro &#62; 20mm&#46; Nestes doentes&#44; a presen&#231;a de dilata&#231;&#227;o das cavidades direitas pode indicar uma probabilidade mais elevada de mortalidade&#46;</p>"
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Cardiac influence on mechanical ventilation time and mortality in exacerbated chronic respiratory failure patients. The role of echocardiographic parameters
Determinantes cardíacas do tempo de ventilação mecânica e mortalidade de doentes com insuficiência respiratória crónica exacerbada. A importância dos parâmetros ecocardiográficos
Paulo Marcelino1,
Corresponding author
paulo-alex-ma@hotmail.com
alternativo.pmarcelino@fm.ul.pt

Correspondence to/Correspondência: Hospital de Curry Cabral, Unidade de Cuidados Intensivos, Rua da Beneficência, 8, 1066-169, Lisboa.
, Nuno Germano2, Ana Paiva Nunes2, Lígia Flora3, Ana Moleiro2, Susan Marum1, Ana Paula Fernandes1, Luís Mourão4,5
1 Assistente Hospitalar de Medicina Interna/Internal Medicine Hospital Assistant
2 Interno do Internato Complementar de Medicina Interna/Complementary Internal Medicine Intern
3 Interna do Internato Complementar de Pneumologia/Complementary Pulmonology Intern
4 Hospital de Curry Cabral, Unidade de Cuidados Intensivos, Curry Cabral Hospital, Lisbon University Cardiology Centre (CCUL)
5 Centro de Cardiologia da Universidade de Lisboa (CCUL)/Intensive Care Unit, Curry Cabral Hospital, Lisbon University Cardiology Centre (CCUL)
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">To study the influence of cardiac status on the length of mechanical ventilation&#44; outcome and disease severity in patients admitted to an Intensive Care Unit &#40;ICU&#41; with exacerbation of chronic respiratory failure&#46;</p> <span class="elsevierStyleSectionTitle">Design and setting</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">A 30-month prospective study in a 14 bed ICU</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Fifty nine patients were enrolled&#44; with a mean age 74&#46;7 &#43;&#47;- 9&#46;7 years&#44; mean length of ventilator support 10&#46;8 &#43;&#47;- 12&#46;6 days&#44; and mean APACHE II score 23 &#43;&#47;- 8&#46;3&#46; Within the first 24 hours of admittance&#44; cardiac chamber dimensions&#44; inferior vena cava &#40;IVC&#41;&#44; and mitral transvalvular Doppler were evaluated using transthoracic echocardiography&#59; the cardiac rhythm was recorded &#40;presence of sinus rhythm or atrial fibrillation&#41;&#46; Blood gases were evaluated at discharge&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Greater length of ventilation was observed in patients presenting atrial fibrillation &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;027&#41;&#44; particularly when a dilated IVC was also present &#40;&#62;20<span class="elsevierStyleHsp" style=""></span>mm&#44; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;004&#41;&#46; A high level of serum bicarbonate &#40;&#62;35<span class="elsevierStyleHsp" style=""></span>mEq&#47;l&#41;&#44; was also related with longer ventilation &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46; 04&#41;&#46; Twelve patients died&#46; Mortality was related to the presence of a dilated right ventricle &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;03&#41; and a ratio between right and left ventricle &#62; 0&#46; 6 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;04&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusion</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Patients submitted to mechanical ventilation due to exacerbation of chronic respiratory failure which present atrial fibrillation require a longer ventilation period&#44; particularly if a dilated IVC is also present&#46; Patients with dilated right cardiac chambers are at an increased risk of a fatal outcome&#46;</p>"
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      "pt" => array:2 [
        "titulo" => "Resumo"
        "resumen" => "<span class="elsevierStyleSectionTitle">Objectivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">estudar determinantes cardiovasculares condicionantes do tempo de ventila&#231;&#227;o&#44; mortalidade e gravidade de doen&#231;a em doentes admitidos numa unidade de cuidados intensivos para ventila&#231;&#227;o mec&#226;nica por exacerba&#231;&#227;o de insufici&#234;ncia respirat&#243;ria cr&#243;nica&#46;</p> <span class="elsevierStyleSectionTitle">Desenho e local</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Estudo prospectivo&#44; com dura&#231;&#227;o de 30 meses numa unidade de cuidados intensivos m&#233;dico-cir&#250;rgica com 14 camas&#46;</p> <span class="elsevierStyleSectionTitle">Material e m&#233;todos</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Estudados 59 doentes com idade m&#233;dia de 74&#44;7 &#43;&#47;- 9&#44;7 anos&#44; tempo m&#233;dio de ventila&#231;&#227;o de 10&#44;8 &#43;&#47;- 12&#44;6 dias&#44; APACHE II m&#233;dio de 23 &#43;&#47;- 8&#44;3&#46; Avaliaram-se par&#226;metros ecocardiogr&#225;ficos &#40;dimens&#245;es das cavidades&#44; d&#233;bito card&#237;aco&#44; estudo Doppler do fluxo transvalvular mitral&#44; estudo da veia cava inferior&#41; e electrocardiogr&#225;ficos &#40;presen&#231;a de ritmo sinusal ou fibrilha&#231;&#227;o auricular&#41; nas primeiras 24 horas de internamento na Unidade e par&#226;metros gasim&#233;tricos &#224; sa&#237;da&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Um tempo de ventila&#231;&#227;o mais prolongado associou-se &#224; presen&#231;a de fibrilha&#231;&#227;o auricular &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;027&#41;&#44; &#224; presen&#231;a conjunta de fibrilha&#231;&#227;o auricular e uma veia cava inferior dilatada &#40;&#62; 20<span class="elsevierStyleHsp" style=""></span>mm p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;004&#41; e com n&#237;veis s&#233;ricos de bicarbonato &#62; 35mEq&#47;l na gasimetria obtida &#224; sa&#237;da &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;04&#41;&#46; Verificaram-se 12 &#243;bitos&#46; A mortalidade associou-se &#224; presen&#231;a de dilata&#231;&#227;o do ventr&#237;culo direito &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;03&#41; e a uma rela&#231;&#227;o entre o ventr&#237;culo direito e o esquerdo &#62; 0&#44;6 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;04&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclus&#227;o</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Nos doentes submetidos a ventila&#231;&#227;o mec&#226;nica por exacerba&#231;&#227;o de insufici&#234;ncia respirat&#243;ria cr&#243;nica&#44; a presen&#231;a de fibrilha&#231;&#227;o auricular indica a possibilidade de um per&#237;odo de ventila&#231;&#227;o mais prolongado&#44; em especial se houver concomitantemente uma veia cava inferior com di&#226;metro &#62; 20mm&#46; Nestes doentes&#44; a presen&#231;a de dilata&#231;&#227;o das cavidades direitas pode indicar uma probabilidade mais elevada de mortalidade&#46;</p>"
      ]
    ]
    "bibliografia" => array:2 [
      "titulo" => "Bibliography&#47;Bibliografia"
      "seccion" => array:1 [
        0 => array:2 [
          "identificador" => "bibs0005"
          "bibliografiaReferencia" => array:28 [
            0 => array:3 [
              "identificador" => "bib1"
              "etiqueta" => "1&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Determinants of the length of mechanical ventilation in patients with COPD in the intensive care unit"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "G&#46; Gursel"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
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                      "Revista" => array:6 [
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                        "fecha" => "2005"
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            1 => array:3 [
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              "etiqueta" => "2&#46;"
              "referencia" => array:1 [
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                      "autores" => array:1 [
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                          "etal" => false
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                            2 => "K&#46; Chan"
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            2 => array:3 [
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              "etiqueta" => "3&#46;"
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                  "contribucion" => array:1 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                      "Revista" => array:6 [
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            3 => array:3 [
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              "etiqueta" => "4&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            4 => array:3 [
              "identificador" => "bib5"
              "etiqueta" => "5&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
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                      "titulo" => "Effect of failed extubation on the outcome of mechanical ventilation"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "S&#46;K&#46; Epstein"
                            1 => "R&#46;L&#46; Ciubotaru"
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                        ]
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                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Chest"
                        "fecha" => "1997"
                        "volumen" => "112"
                        "paginaInicial" => "186"
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                        ]
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                    ]
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            ]
            5 => array:3 [
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              "etiqueta" => "6&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "S&#46;K&#46; Epstein"
                            1 => "R&#46;L&#46; Ciubotaru"
                          ]
                        ]
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                  ]
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                    0 => array:2 [
                      "doi" => "10.1164/ajrccm.158.2.9711045"
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                        ]
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                    ]
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                ]
              ]
            ]
            6 => array:3 [
              "identificador" => "bib7"
              "etiqueta" => "7&#46;"
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                0 => array:2 [
                  "contribucion" => array:1 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "C&#46;W&#46; Seymour"
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                  ]
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                      "doi" => "10.1186/cc2966"
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            ]
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                0 => array:2 [
                  "contribucion" => array:1 [
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                      "titulo" => "Weaning from mechanical cardiac support in patients with idiopathic dilated cardiomyopathy"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "J&#46; Muller"
                            1 => "G&#46; Wallukat"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "F&#46; Lemaire"
                            1 => "J&#46;-L&#46; Teboul"
                            2 => "L&#46; Cinotti"
                            3 => "G&#46; Giotto"
                            4 => "F&#46; Abrouk"
                            5 => "G&#46; Steg"
                          ]
                        ]
                      ]
                    ]
                  ]
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                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Anesthesiology"
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                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            9 => array:3 [
              "identificador" => "bib10"
              "etiqueta" => "10&#46;"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Left ventricular function during weaning of patients with chronic obstructive pulmonary disease"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "C&#46; Richard"
                            1 => "J&#46;-L&#46; Teboul"
                            2 => "F&#46; Archambaud"
                            3 => "J&#46;L&#46; Hebert"
                            4 => "P&#46; Michaut"
                            5 => "P&#46; Auzepy"
                          ]
                        ]
                      ]
                    ]
                  ]
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                    0 => array:1 [
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                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            10 => array:3 [
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              "etiqueta" => "11&#46;"
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                0 => array:2 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "K&#46; Bando"
                            1 => "K&#46; Sun"
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                          ]
                        ]
                      ]
                    ]
                  ]
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                ]
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            ]
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "Feigenbaum Harvey"
                          ]
                        ]
                      ]
                    ]
                  ]
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                    0 => array:1 [
                      "Libro" => array:4 [
                        "edicion" => "5th ed&#46;"
                        "fecha" => "1994"
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                      ]
                    ]
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                ]
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            ]
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
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                            0 => "B&#46; Jacobson"
                          ]
                        ]
                      ]
                    ]
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => "Harvey"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Libro" => array:4 [
                        "edicion" => "5th ed&#46;"
                        "fecha" => "1994"
                        "editorial" => "Pennsylvania&#58; Lea &#38; Febiger"
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                      ]
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                ]
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            ]
            14 => array:3 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
                            0 => "X&#46;J&#46; Capdevila"
                            1 => "P&#46;F&#46; Perrigault"
                            2 => "P&#46;J&#46; Perey"
                            3 => "J&#46;P&#46;A&#46; Roustan"
                            4 => "F&#46; d&#39;Athis"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:6 [
                        "tituloSerie" => "Chest"
                        "fecha" => "1995"
                        "volumen" => "108"
                        "paginaInicial" => "482"
                        "paginaFinal" => "489"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/7634888"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
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Pulmonology

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