Studying on characters of pulmonary ventilation in 90 patients with exacerbations of COPD
- Author:
Tien Dinh Nguyen
- Publication Type:Journal Article
- Keywords:
chronic obstructive pulmonary disease
- MeSH:
Pulmonary Disease, Chronic Obstructive;
pulmonary ventilation
- From:Journal of Practical Medicine
1998;354(9):37-39
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
Between April 1994 and May 1998, 90 patients with exacerbations of COPD were recruited in this study. Pulmonary ventilation was measured and evaluated using ATS criteria. The results showed that most of participants had combined ventilatory dysfunction (93.3%) and stage 1 or 2 of COPD (87.7%). 53.3% of patients were in stage 3 of COPD. There was not any relationship between FEV1 and chronic productive cough (r = -0.04). The instantaneous flow rates at different percentages of the FVC (MEF75%, MEF50%, MEF25%), PEF and PEF25-75% all decreased more than FEV1. There was not relationship between FEV1 and PEF, PEF25-75%, MEF75%, MEF50%, MEF25%. PEF was unreplaceable for FEV1 in diagnosis and monitoring COPD. After treatment, all these measurements increased partially (less than 15%).
