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- W2393345235 abstract "Objective To investigate the value of impulse oscillometry(IOS) in the diagnosis of chronic obstructive pulmonary disease(COPD) in the elderly.Methods The parameters of pulmonary ventilation function and IOS were measured in 75 elder patients with COPD(group COPD) and healthy elderly(group C).Results The values of FEV1/FVC,FVC%pred,FEV1%pred,FEV25-75%pred,FEF50%pred and PEF%perd were significantly lower in group COPD than those in group C(P0.01).The values of R5%pred,R5,R5-R20,X5%pred,Fres,Fres%pred and AX were significantly higher in group COPD than those in group C(P0.01).Fres,Fres%pred,AX,R5%pred and R5-R20 were negatively correlated with the pulmonary ventilation functions.X5%pred was negatively correlated with FVC%pred,FEV1%pred,FEV25-75%pred and FEF50%pred.Conclusion IOS technique is valuable in the diagnosis of COPD and the determination of the location of airflow obstruction,and especially suitable for the elderly and severely diseased patients." @default.
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- W2393345235 date "2012-01-01" @default.
- W2393345235 modified "2023-09-24" @default.
- W2393345235 title "Application of impulse oscillometry in the diagnosis of chronic obstructive pulmonary disease in the elderly" @default.
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