Clinical and functional correlations of the difference between slow vital capacity and FVC

Detalhes bibliográficos
Autor(a) principal: Fernandez,Jonathan Jerias
Data de Publicação: 2020
Outros Autores: Castellano,Maria Vera Cruz de Oliveira, Vianna,Flavia de Almeida Filardo, Nacif,Sérgio Roberto, Rodrigues Junior,Roberto, Rodrigues,Sílvia Carla Sousa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Jornal Brasileiro de Pneumologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132020000100205
Resumo: ABSTRACT Objective: To evaluate the relationship that the difference between slow vital capacity (SVC) and FVC (ΔSVC-FVC) has with demographic, clinical, and pulmonary function data. Methods: This was an analytical cross-sectional study in which participants completed a respiratory health questionnaire, as well as undergoing spirometry and plethysmography. The sample was divided into two groups: ΔSVC-FVC ≥ 200 mL and ΔSVC-FVC < 200 mL. The intergroup correlations were analyzed, and binomial logistic regression analysis was performed. Results: The sample comprised 187 individuals. In the sample as a whole, the mean ΔSVC-FVC was 0.17 ± 0.14 L, and 61 individuals (32.62%) had a ΔSVC-FVC ≥ 200 mL. The use of an SVC maneuver reduced the prevalence of nonspecific lung disease and of normal spirometry results by revealing obstructive lung disease (OLD). In the final logistic regression model (adjusted for weight and body mass index > 30 kg/m2), OLD and findings of air trapping (high functional residual capacity and a low inspiratory capacity/TLC ratio) were predictors of a ΔSVC-FVC ≥ 200 mL. The chance of a bronchodilator response was found to be greater in the ΔSVC-FVC ≥ 200 mL group: for FEV1 (OR = 4.38; 95% CI: 1.45-13.26); and for FVC (OR = 3.83; 95% CI: 1.26-11.71). Conclusions: The use of an SVC maneuver appears to decrease the prevalence of nonspecific lung disease and of normal spirometry results. Individuals with a ΔSVC-FVC ≥ 200 mL, which is probably the result of OLD and air trapping, are apparently more likely to respond to bronchodilator administration.
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spelling Clinical and functional correlations of the difference between slow vital capacity and FVCVital capacityPlethysmographyAirway obstructionABSTRACT Objective: To evaluate the relationship that the difference between slow vital capacity (SVC) and FVC (ΔSVC-FVC) has with demographic, clinical, and pulmonary function data. Methods: This was an analytical cross-sectional study in which participants completed a respiratory health questionnaire, as well as undergoing spirometry and plethysmography. The sample was divided into two groups: ΔSVC-FVC ≥ 200 mL and ΔSVC-FVC < 200 mL. The intergroup correlations were analyzed, and binomial logistic regression analysis was performed. Results: The sample comprised 187 individuals. In the sample as a whole, the mean ΔSVC-FVC was 0.17 ± 0.14 L, and 61 individuals (32.62%) had a ΔSVC-FVC ≥ 200 mL. The use of an SVC maneuver reduced the prevalence of nonspecific lung disease and of normal spirometry results by revealing obstructive lung disease (OLD). In the final logistic regression model (adjusted for weight and body mass index > 30 kg/m2), OLD and findings of air trapping (high functional residual capacity and a low inspiratory capacity/TLC ratio) were predictors of a ΔSVC-FVC ≥ 200 mL. The chance of a bronchodilator response was found to be greater in the ΔSVC-FVC ≥ 200 mL group: for FEV1 (OR = 4.38; 95% CI: 1.45-13.26); and for FVC (OR = 3.83; 95% CI: 1.26-11.71). Conclusions: The use of an SVC maneuver appears to decrease the prevalence of nonspecific lung disease and of normal spirometry results. Individuals with a ΔSVC-FVC ≥ 200 mL, which is probably the result of OLD and air trapping, are apparently more likely to respond to bronchodilator administration.Sociedade Brasileira de Pneumologia e Tisiologia2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132020000100205Jornal Brasileiro de Pneumologia v.46 n.1 2020reponame:Jornal Brasileiro de Pneumologia (Online)instname:Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)instacron:SBPT10.1590/1806-3713/e20180328info:eu-repo/semantics/openAccessFernandez,Jonathan JeriasCastellano,Maria Vera Cruz de OliveiraVianna,Flavia de Almeida FilardoNacif,Sérgio RobertoRodrigues Junior,RobertoRodrigues,Sílvia Carla Sousaeng2019-12-17T00:00:00Zoai:scielo:S1806-37132020000100205Revistahttp://www.jornaldepneumologia.com.br/default.aspONGhttps://old.scielo.br/oai/scielo-oai.php||jbp@jbp.org.br|| jpneumo@jornaldepneumologia.com.br1806-37561806-3713opendoar:2019-12-17T00:00Jornal Brasileiro de Pneumologia (Online) - Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)false
dc.title.none.fl_str_mv Clinical and functional correlations of the difference between slow vital capacity and FVC
title Clinical and functional correlations of the difference between slow vital capacity and FVC
spellingShingle Clinical and functional correlations of the difference between slow vital capacity and FVC
Fernandez,Jonathan Jerias
Vital capacity
Plethysmography
Airway obstruction
title_short Clinical and functional correlations of the difference between slow vital capacity and FVC
title_full Clinical and functional correlations of the difference between slow vital capacity and FVC
title_fullStr Clinical and functional correlations of the difference between slow vital capacity and FVC
title_full_unstemmed Clinical and functional correlations of the difference between slow vital capacity and FVC
title_sort Clinical and functional correlations of the difference between slow vital capacity and FVC
author Fernandez,Jonathan Jerias
author_facet Fernandez,Jonathan Jerias
Castellano,Maria Vera Cruz de Oliveira
Vianna,Flavia de Almeida Filardo
Nacif,Sérgio Roberto
Rodrigues Junior,Roberto
Rodrigues,Sílvia Carla Sousa
author_role author
author2 Castellano,Maria Vera Cruz de Oliveira
Vianna,Flavia de Almeida Filardo
Nacif,Sérgio Roberto
Rodrigues Junior,Roberto
Rodrigues,Sílvia Carla Sousa
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Fernandez,Jonathan Jerias
Castellano,Maria Vera Cruz de Oliveira
Vianna,Flavia de Almeida Filardo
Nacif,Sérgio Roberto
Rodrigues Junior,Roberto
Rodrigues,Sílvia Carla Sousa
dc.subject.por.fl_str_mv Vital capacity
Plethysmography
Airway obstruction
topic Vital capacity
Plethysmography
Airway obstruction
description ABSTRACT Objective: To evaluate the relationship that the difference between slow vital capacity (SVC) and FVC (ΔSVC-FVC) has with demographic, clinical, and pulmonary function data. Methods: This was an analytical cross-sectional study in which participants completed a respiratory health questionnaire, as well as undergoing spirometry and plethysmography. The sample was divided into two groups: ΔSVC-FVC ≥ 200 mL and ΔSVC-FVC < 200 mL. The intergroup correlations were analyzed, and binomial logistic regression analysis was performed. Results: The sample comprised 187 individuals. In the sample as a whole, the mean ΔSVC-FVC was 0.17 ± 0.14 L, and 61 individuals (32.62%) had a ΔSVC-FVC ≥ 200 mL. The use of an SVC maneuver reduced the prevalence of nonspecific lung disease and of normal spirometry results by revealing obstructive lung disease (OLD). In the final logistic regression model (adjusted for weight and body mass index > 30 kg/m2), OLD and findings of air trapping (high functional residual capacity and a low inspiratory capacity/TLC ratio) were predictors of a ΔSVC-FVC ≥ 200 mL. The chance of a bronchodilator response was found to be greater in the ΔSVC-FVC ≥ 200 mL group: for FEV1 (OR = 4.38; 95% CI: 1.45-13.26); and for FVC (OR = 3.83; 95% CI: 1.26-11.71). Conclusions: The use of an SVC maneuver appears to decrease the prevalence of nonspecific lung disease and of normal spirometry results. Individuals with a ΔSVC-FVC ≥ 200 mL, which is probably the result of OLD and air trapping, are apparently more likely to respond to bronchodilator administration.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Pneumologia e Tisiologia
publisher.none.fl_str_mv Sociedade Brasileira de Pneumologia e Tisiologia
dc.source.none.fl_str_mv Jornal Brasileiro de Pneumologia v.46 n.1 2020
reponame:Jornal Brasileiro de Pneumologia (Online)
instname:Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)
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reponame_str Jornal Brasileiro de Pneumologia (Online)
collection Jornal Brasileiro de Pneumologia (Online)
repository.name.fl_str_mv Jornal Brasileiro de Pneumologia (Online) - Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)
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