IMPULSE OSCILLOMETRY: AN ADJUNCT OR ALTERNATIVE TO SPIROMETRY IN THE DIAGNOSIS OF OBSTRUCTIVE AIRWAY DISEASE. RESULTS FROM AN OBSERVATIONAL STUDY.

Background Obstructive airway disease is one of the leading causes of morbidity and mortality in India. Spirometry is the gold standard for diagnosis of OAD, but is difficult to perform and requires patient cooperation. Impulse oscillometry has been shown to be more sensitive in diagnosis of OAD in studies conducted outside India. Materials and methods This was a cross sectional, observational study including 125 (63 asthma and 62 COPD) …