Serviços Personalizados
Journal
Artigo
Indicadores
- Citado por SciELO
- Acessos
Links relacionados
- Similares em SciELO
Compartilhar
Revista de investigación clínica
versão On-line ISSN 2564-8896versão impressa ISSN 0034-8376
Resumo
FERNANDEZ-PLATA, Rosario et al. Screening Tool for Restrictive and Obstructive Ventilatory Abnormalities in a Population-Based Survey. Rev. invest. clín. [online]. 2020, vol.72, n.6, pp.386-393. Epub 09-Abr-2021. ISSN 2564-8896. https://doi.org/10.24875/ric.20000235.
Background:
A 6 s spirometry with an inexpensive pocket spirometer efficiently selects individuals for a diagnostic-quality spirometry for airflow limitation, but could also be useful to identify individuals with a restrictive pattern.
Objectives:
We evaluated an inexpensive simplified spirometer (chronic obstructive pulmonary disease [COPD]-6) as a screening tool to identify spirometric abnormalities.
Methods:
A population-based survey in Mexico City, with 742 participants performing pre- and post-BD spirometry and a three-maneuver 6 s spirometry (pre-BD) with a COPD-6. We evaluated forced expiratory volume in 1 s (FEV1), FEV6, and FEV1/FEV6 from the COPD-6, crude and expressed as the percentage of predicted (%P), to discriminate post-bronchodilator airflow obstruction (FEV1/forced vital capacity [FVC] <5th percentile) or restriction (FVC or FEV1 <5th percentile with normal FEV1/FVC) through receiver operating characteristics and their area under the curve (AUC).
Results:
FEV1%P was the best predictor to identify pre- and post-BD ventilatory abnormalities (best cutoff point 87%P, AUC 92% for restrictive pattern, 89% for obstructive pattern, and 91% for any spirometric abnormality). Deriving to clinical spirometry only those with <87%P (26% of the sample) missed only 12% of spirometric abnormalities most of the latter mild.
Conclusions:
An FEV1 <87%P from a pre-BD 6 s spirometry correctly identified individuals with spirometric ventilatory defects, either obstructive or restrictive.
Palavras-chave : Chronic Obstructive Pulmonary Disease; Restrictive pattern; Forced expiratory volume in 1 s; Screening; Case finding; Spirometry; COPD-6; Population-based survey.