Changes ofF EV1, FVC and the degree of dyspnea before and after the bronchial diastolic test in patient with COPD
WU Ying
XIA Xuhui
LIU Xiao
CAO Jian
YANG Yongzhen
ZHANG Huanmei
Abstract：Objective To investigate the forced expiratory volume in first second ( FEV1 ) , forced vital capacity ( FVC) and the degree of difficulty in breathing changes before and after bronchial dilation test in chronic obstructive pulmona-ry disease ( COPD) patients.Methods One hundred and eighty-six COPD patients were selected from 2013 February to 2014 December.According to the severity of COPD, mild group was 47 cases;moderate group and severe group were 50 cases re-spectively, and 89 cases.The changes of FEV1 , FVC, PEF rate between different grade levels were compared.Results After the medicine was absorbed, all patients’ FEV1 , FVC, and PEF were improved and increased with the severity of chronic ob-structive pulmonary disease (COPD) decreased ( P <0.05).There are differences of the changes in the rate of FEV1 and FVC variation in different grade ( P <0.05).In light, medium and severe grade, the improvement rate, bronchial dilation test positive rate showed a declining trend, the differences were statistically significant ( P <0.05).ΔFEV1%andΔFVC%,ΔFEV1%andΔPEF%existed correlation in light, moderate group, but no correlation in severe group.Delta FVC%and del-ta PEF%only reflects the correlation in mild patients, but there were no correlation in the severe group.Conclusion The FEV1 as indicator to observe the improvement before and after bronchial diastolic test in COPD patients has advantages, com-bined with FVC and peak expiratory flow ( PEF) can improve the analysis of the degree of difficulty in breathing, especially in the severe and very severe patients, has greater application value.
Keywords：Chronic obstructive pulmonary diseaseBronchial diastolic testPulmonary functionForced expiratory volume in one secondForced vital capacity
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 575-578 )