Bronchial Lavage and Postoperative Lobar and Segmental Collapse of the Lungs

Abstract

Where significant quantities of secretions are produced in the airways, their efficient removal is essential if the formation of thick mucous plugs leading to segmental or lobar obstruction and collapse (Fig. 109) is to be prevented. These secretions may also become infected and, in the process of transition to mucopurulent or frankly purulent sputum sometimes lead on to acute infective tracheobronchitis, bronchopneumonia, or both. These complications are far more likely to arise where the cough mechanism is impaired in association with obstructive airways disease and especially with collapsing airways. Following abdominal or thoracic surgery, suppression of the cough maneuver by pain and/or the cough reflex by morphine and related drugs may lead to respiratory complications.