Desarrollo de una nueva constante de difusion no afectada por cambios en el volumen alveolar
A new diffusion constant not affected by changes in alveolar volume
N. Gonzalez Mangado, J. Vallejo Galbete, F. Lahoz Navarro
Sección de Fisiopatología Respiratoria. Servicio de Neumología. Fundación Jiménez Díaz. Madrid
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Torre Buxalleu, F.J. Ortega Morales, M. Hernández Alonso, M. Carbajo Carbajo" "autores" => array:4 [ 0 => array:2 [ "nombre" => "W." "apellidos" => "Torre Buxalleu" ] 1 => array:2 [ "nombre" => "F.J." "apellidos" => "Ortega Morales" ] 2 => array:2 [ "nombre" => "M." "apellidos" => "Hernández Alonso" ] 3 => array:2 [ "nombre" => "M." "apellidos" => "Carbajo Carbajo" ] ] ] ] ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0300289615322043?idApp=UINPBA00003Z" "url" => "/03002896/0000002100000001/v1_201509151141/S0300289615322043/v1_201509151141/es/main.assets" ] "es" => array:13 [ "idiomaDefecto" => true "titulo" => "Desarrollo de una nueva constante de difusion no afectada por cambios en el volumen alveolar" "tieneTextoCompleto" => 0 "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "4" "paginaFinal" => "8" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "N. Gonzalez Mangado, J. Vallejo Galbete, F. Lahoz Navarro" "autores" => array:3 [ 0 => array:2 [ "nombre" => "N." "apellidos" => "Gonzalez Mangado" ] 1 => array:2 [ "nombre" => "J." "apellidos" => "Vallejo Galbete" ] 2 => array:2 [ "nombre" => "F." "apellidos" => "Lahoz Navarro" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Sección de Fisiopatología Respiratoria. Servicio de Neumología. Fundación Jiménez Díaz. Madrid" "identificador" => "aff0005" ] ] ] ] "titulosAlternativos" => array:1 [ "en" => array:1 [ "titulo" => "A new diffusion constant not affected by changes in alveolar volume" ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "1984-03-05" "fechaAceptado" => "1984-09-15" "tieneResumen" => true "resumen" => array:2 [ "es" => array:1 [ "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Se presenta una nueva constante de difusión poco afectada por los cambios del volumen alveolar (Va) en un mismo sujeto, al contrario de lo que ocurre con el Kco. Esta constante relaciona el DLco medido con el Va al que se efectúa la prueba, la constante «Zco» responde a la fórmula:</p><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">                 Zco=DLco medida×100/DLco ZSiendo DLco−Z=DLco teórica×Z</p><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Z=2·X321+X32X=Va medido/TLC teórica</p><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Se efectúa un estudio en ocho sujetos normales a tres diferentes volúmenes alveolares, comprobándose una menor variación de este parámetro en comparación de la DLco clásica y la Kco.</p><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se dan los valores de dos aplicaciones en pacientes y una tabla para derivar el factor «Z» en función de «<span class="elsevierStyleSmallCaps">X</span>».</p></span>" ] "en" => array:1 [ "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">A new diffusion constant which in contrast with Kco is but little affected by changes in the alveolar volume (AV) in the same patient. This constant related the DLco measured with the AV of the test; the constant «Zco» expressed as:</p><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">                 Zco=DLco measured×100/DLco-Zif DLco-Z=DLco theoretically×Z</p><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Z=2·X321+X32X=Va measured/TLC theoretically</p><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">In a study including eight healthy individuals tested at three different AV there was less variation in this parameter than in the classical DLco and Kco.</p><p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">The values for two tests with patients are given as is a table to derive the «Z» and «<span class="elsevierStyleSmallCaps">X</span>» factors.</p></span>" ] ] "bibliografia" => array:2 [ "titulo" => "Bibliografia" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:8 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1." 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