Source of Support: None, Conflict of Interest: None
The nasal mucociliary clearance (NMCC) was studied using the saccharin method in 100 patients of lower respiratory tract disorders which comprised of 11 patients of bronchiectasis, 35 of chronic bronchitis, 37 of bronchial asthma and 17 of pneumonia. The results were compared with 100 healthy controls. The nasal mucociliary clearance was significantly prolonged in bronchiectasis, chronic bronchitis and bronchial asthma but not in pneumonia. No relationship of nasal mucociliary clearance with duration of disease was observed. Whether this impairment is the cause or effect of the disease needs further elucidation.