A clinical study of endoscopic sinus surgery for sinusitis in patients with bronchial asthma.

Background: An association between bronchial asthma and sinusitis has long been suspected. Our aim is to study the clinical features of chronic sinusitis associated with bronchial asthma as two manifestations of one airway disease.

Methods: We conducted a prospective analysis of the outcome of 88 patients, with or without bronchial asthma, who underwent endoscopic sinus surgery (ESS) for chronic sinusitis. Patients were divided into two groups by the presence or absence of asthma and were evaluated. One surgeon performed the ESS, and the same postoperative treatment was given to both groups. The postoperative outcomes of symptoms and objective findings related to sinusitis were evaluated numerically, with a maximum score of 2 points for each examination item. Twenty-eight patients with asthma symptoms were assessed before and after surgery, using peak flow (liter/second) and medication scores (according to US Food and Drug Administration) to determine whether bronchial asthma was improved by first-time ESS.

Results: The outcomes of ESS were significantly worse in the asthma group, especially the endonasal findings. Patients suffering from chronic sinusitis and bronchial asthma showed improvement following ESS in terms of their asthma symptoms, peak flow and medication score. Patients with a good ESS result tended to have the greatest improvement in their asthma.

Conclusions: We conclude that sinusitis and asthma are closely related to each other, acting as two manifestations of one airway disease. We recommend treating cases of sinusitis complicated by asthma as a single disease of the entire respiratory tract.