ArticleJornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia2020
Clinical and functional correlations of the difference between slow vital capacity and FVC.
Article in Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Association between the Cardiothoracic Ratio on Chest X-rays and the Respiratory Function in Patients with Interstitial Lung Diseases: a Cross-sectional Study.Internal medicine (Tokyo, Japan) · 2025Article
- Comparison of Methods of Eliciting Vital Capacity: Forced Versus Slow Vital Capacity.Journal of voice : official journal of the Voice Foundation · 2025Article
- Pulmonary Function Tests: Easy Interpretation in Three Steps.Journal of clinical medicine · 2024Review
- Comparison of Slow and Forced Vital Capacity on Ability to Evaluate Respiratory Function in Bulbar-Involved Amyotrophic Lateral Sclerosis.Frontiers in neurology · 2022Article
- Difference between slow vital capacity and forced vital capacity in the diagnosis of airflow limitationAuthors' replyClinical and functional correlations of the difference between slow vital capacity and FVCIs the Slow Vital Capacity Clinically Useful to Uncover Airflow Limitation in Subjects With Preserved FEV1/FVCReference values for spirometry, including vital capacity, in Japanese adults calculated with the LMS method and compared with previous valuesSmooth reference equations for slow vital capacity and flow-volume curve indexesRecommendations for a Standardized Pulmonary Function Report An Official American Thoracic Society Technical Statement.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2020Article
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Abstract
objectiveTo evaluate the relationship that the difference between slow vital capacity (SVC) and FVC (ΔSVC-FVC) has with demographic, clinical, and pulmonary function data.
methodsThis 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.
resultsThe 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).
conclusionsThe 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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