Variabilidad intrasujeto de las curvas espiratorias flujo-volumen: valoracion de las formas de expresion y criterios de seleccion
Intraindividual variability in the expiratory flow-volume curves: evaluation of the way of expression and selection criteria
L.A. Izquierdo del Amo, J.M. Arriero Marin, F. Rodriguez de Castro, J. Picher Nuñez, A. Sueiro Bendito, S. Romero Candeira
Servicio de Neumología. Hospital Ramón y Cajal. Madrid
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"apellidos" => "Alberola Carbonell" ] ] ] ] ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0300289615320536?idApp=UINPBA00003Z" "url" => "/03002896/0000002200000003/v1_201509151111/S0300289615320536/v1_201509151111/es/main.assets" ] "es" => array:13 [ "idiomaDefecto" => true "titulo" => "Variabilidad intrasujeto de las curvas espiratorias flujo-volumen: valoracion de las formas de expresion y criterios de seleccion" "tieneTextoCompleto" => 0 "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "124" "paginaFinal" => "129" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "L.A. Izquierdo del Amo, J.M. Arriero Marin, F. Rodriguez de Castro, J. Picher Nuñez, A. Sueiro Bendito, S. Romero Candeira" "autores" => array:6 [ 0 => array:2 [ "nombre" => "L.A." "apellidos" => "Izquierdo del Amo" ] 1 => array:2 [ "nombre" => "J.M." "apellidos" => "Arriero Marin" ] 2 => array:2 [ "nombre" => "F." "apellidos" => "Rodriguez de Castro" ] 3 => array:2 [ "nombre" => "J." "apellidos" => "Picher Nuñez" ] 4 => array:2 [ "nombre" => "A." "apellidos" => "Sueiro Bendito" ] 5 => array:2 [ "nombre" => "S." "apellidos" => "Romero Candeira" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Servicio de Neumología. Hospital Ramón y Cajal. Madrid" "identificador" => "aff0005" ] ] ] ] "titulosAlternativos" => array:1 [ "en" => array:1 [ "titulo" => "Intraindividual variability in the expiratory flow-volume curves: evaluation of the way of expression and selection criteria" ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "1985-09-06" "fechaAceptado" => "1986-01-22" "tieneResumen" => true "resumen" => array:2 [ "es" => array:1 [ "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Se estudia la variabilidad de los flujos y los volúmenes espiratorios, interhora e interdia, en un grupo de veinte voluntarios sanos, encontrándose que los parámetros que presentan menor variabilidad son la capacidad vital forzada (FVC) y el volumen espiratorio forzado en el primer segundo (FEV<span class="elsevierStyleInf">1</span>). Los flujos teleespiratorios son más variables, mientras que el pico espiratorio de flujo (PEF) y los flujos mesoespiratorios, presentan variabilidad intermedia. Para todos los parámetros, excepto para el PEF, la variabilidad interdia fue significativamente mayor que la interhora, lo que obliga a considerar el tiempo entre pruebas para valorar un cambio espirométrico.</p><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Nuestros valores de incremento significativo concuerdan con publicaciones recientes, pero son inferiores a los considerados tradicionalmente por algunos laboratorios.</p><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">El efecto ejercido en la variabilidad por los distintos métodos de selección, es pequeña, si bien existen diferencias que aconsejan elegir el máximo valor para el PEF y obtener los restantes flujos del trazado con mayor suma de FVC y FEV<span class="elsevierStyleInf">1</span>. Para estos últimos parámetros ambos criterios pueden ser igualmente válidos.</p><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Se estudia la conveniencia de emplear la desviación estándar o el coeficiente de variación (<span class="elsevierStyleSmallCaps">CV</span>) para el estudio de la variabilidad. Encontramos datos sugerentes de que la expresión de la variabilidad en CV puede no ser adecuado, al menos con ciertos parámetros.</p></span>" ] "en" => array:1 [ "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Twenty healthy volunteers were included in a study to analyse the variations in respiratory flow and volume within the same hour and day. The parameters presenting the least variation were forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV<span class="elsevierStyleInf">1</span>). Tele-expiratory flow was more variable and the peak expiratory flow (PEF) and mid-expiratory flow presented intermediate variability. AH parameters except PEF showed significantlv higher variability in interday than in interhour results, requiring to consider the intervals in the evaluation of the changes in spyrometric tests. Our findings of a significant increase were in agreement with recent reports by other authors but are inferiors to those reported traditionally by some laboratories.</p><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">The effect of different methods on variability is but small although there are some differences which make it advisible to chose a maximum value for PEF and take the other flow values from the highest sum for TVC and FEV<span class="elsevierStyleInf">1</span>. For the two latter ones both criteria are equally valid. Both the standard deviation and the variation coefficient were examined to decide which of the two would be most suitable for variability study. Data were found which suggested that the VC expression of variability may not be adequate for certain parameters.</p></span>" ] ] "bibliografia" => array:2 [ "titulo" => "Bibliografia" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:30 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1." "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "The maximal expiratory flow volume curves: Its use in detection of ventilatory abnormalities in a population study" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "R.J. Knudson" 1 => "B. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 9 | 3 | 12 |
| 2024 October | 50 | 22 | 72 |
| 2024 September | 55 | 19 | 74 |
| 2024 August | 53 | 32 | 85 |
| 2024 July | 40 | 30 | 70 |
| 2024 June | 46 | 35 | 81 |
| 2024 May | 42 | 34 | 76 |
| 2024 April | 33 | 28 | 61 |
| 2024 March | 37 | 25 | 62 |
| 2024 February | 36 | 37 | 73 |
| 2024 January | 0 | 12 | 12 |
| 2023 December | 0 | 12 | 12 |
| 2023 November | 0 | 14 | 14 |
| 2023 October | 0 | 34 | 34 |
| 2023 September | 0 | 4 | 4 |
| 2023 August | 0 | 7 | 7 |
| 2023 July | 0 | 18 | 18 |
| 2023 June | 0 | 3 | 3 |
| 2023 May | 0 | 2 | 2 |
| 2023 April | 0 | 4 | 4 |
| 2023 March | 5 | 7 | 12 |
| 2023 February | 24 | 20 | 44 |
| 2023 January | 25 | 36 | 61 |
| 2022 December | 28 | 34 | 62 |
| 2022 November | 29 | 29 | 58 |
| 2022 October | 26 | 29 | 55 |
| 2022 September | 24 | 26 | 50 |
| 2022 August | 57 | 39 | 96 |
| 2022 July | 51 | 32 | 83 |
| 2022 June | 27 | 31 | 58 |
| 2022 May | 34 | 29 | 63 |
| 2022 April | 19 | 25 | 44 |
| 2022 March | 36 | 42 | 78 |
| 2022 February | 23 | 16 | 39 |
| 2022 January | 28 | 29 | 57 |
| 2021 December | 12 | 34 | 46 |
| 2021 November | 23 | 27 | 50 |
| 2021 October | 49 | 31 | 80 |
| 2021 September | 24 | 47 | 71 |
| 2021 August | 25 | 20 | 45 |
| 2021 July | 17 | 18 | 35 |
| 2021 June | 19 | 27 | 46 |
| 2021 May | 27 | 33 | 60 |
| 2021 April | 34 | 23 | 57 |
| 2021 March | 39 | 29 | 68 |
| 2021 February | 40 | 28 | 68 |
| 2021 January | 27 | 21 | 48 |
| 2020 December | 35 | 23 | 58 |
| 2020 November | 21 | 22 | 43 |
| 2020 October | 18 | 14 | 32 |
| 2020 September | 14 | 6 | 20 |
| 2020 August | 35 | 16 | 51 |
| 2020 July | 19 | 16 | 35 |
| 2020 June | 20 | 13 | 33 |
| 2020 May | 21 | 19 | 40 |
| 2020 April | 32 | 16 | 48 |
| 2020 March | 20 | 18 | 38 |
| 2020 February | 25 | 26 | 51 |
| 2020 January | 32 | 17 | 49 |
| 2019 December | 37 | 32 | 69 |
| 2019 November | 12 | 13 | 25 |
| 2019 October | 28 | 31 | 59 |
| 2019 September | 15 | 38 | 53 |
| 2019 August | 16 | 16 | 32 |
| 2019 July | 15 | 14 | 29 |
| 2019 June | 10 | 22 | 32 |
| 2019 May | 17 | 26 | 43 |
| 2019 April | 6 | 31 | 37 |
| 2019 March | 6 | 17 | 23 |
| 2019 February | 4 | 14 | 18 |
| 2019 January | 3 | 6 | 9 |
| 2018 December | 12 | 12 | 24 |
| 2018 November | 12 | 10 | 22 |
| 2018 October | 12 | 8 | 20 |
| 2018 September | 12 | 11 | 23 |
| 2018 May | 1 | 1 | 2 |
| 2018 April | 8 | 4 | 12 |
| 2018 March | 5 | 5 | 10 |
| 2018 February | 4 | 6 | 10 |
| 2018 January | 6 | 3 | 9 |
| 2017 December | 9 | 13 | 22 |
| 2017 November | 8 | 14 | 22 |
| 2017 October | 10 | 6 | 16 |
| 2017 September | 3 | 4 | 7 |
| 2017 August | 9 | 22 | 31 |
| 2017 July | 2 | 9 | 11 |
| 2017 June | 9 | 22 | 31 |
| 2017 May | 14 | 19 | 33 |
| 2017 April | 8 | 21 | 29 |
| 2017 March | 7 | 19 | 26 |
| 2017 February | 5 | 20 | 25 |
| 2017 January | 2 | 12 | 14 |
| 2016 December | 13 | 13 | 26 |
| 2016 November | 16 | 22 | 38 |
| 2016 October | 18 | 27 | 45 |
| 2016 September | 24 | 17 | 41 |
| 2016 August | 22 | 11 | 33 |
| 2016 July | 26 | 11 | 37 |
| 2016 June | 38 | 16 | 54 |
| 2016 May | 16 | 5 | 21 |
| 2016 April | 13 | 0 | 13 |
| 2016 March | 8 | 0 | 8 |
| 2016 February | 8 | 2 | 10 |
| 2016 January | 13 | 7 | 20 |
| 2015 December | 32 | 19 | 51 |
| 2015 November | 24 | 6 | 30 |
| 2015 October | 6 | 2 | 8 |
| 2015 September | 2 | 0 | 2 |
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