SESSION TITLE: Pulmonary Physiology
SESSION TYPE: Original Investigation Poster
PRESENTED ON: Saturday, April 16, 2016 at 11:45 AM - 12:45 PM
PURPOSE: Central airway obstruction (CAO) is defined as airflow limitation in trachea, left and right main bronchus and bronchus intermedius. Causes of CAO are diverse, and mostly can be improved by interventional bronchoscopy. Impulse oscillometry (IOS) is one of the methods of measuring the resistance of the airways and has been used to assess airway obstruction, but limited data are available in patients with CAO. We conducted this retrospective study to assess the usefulness of IOS in central airway obstruction and whether the location and type of obstruction have impact on their IOS parameters.