https://www.selleckchem.com/pr....oducts/ucl-tro-1938.
Background Impulse oscillometry (IOS) is a method that does not depend on the cooperation of the patient and can detect small airway diseases with higher sensitivity than spirometry. However, the clinical application value of IOS in the screening of patients exposed to risk factors COPD and early diagnosis remains unclear. The aim of this study is to evaluate diagnostic sensitivity of IOS in the early detection of patients exposed to risk factors COPD. Methods A prospective cross-sectional study was conducted in Rasoul Akram Hospit