Correlation between facial pain or headache and computed tomography in rhinosinusitis in Canadian and U.S. subjects.

Objectives: Objectives were 1) to determine whether a correlation exists between facial pain or headache and sinus disease severity by computed tomography (CT) scan in patients with rhinosinusitis and 2) to compare disease severity and pain perception in two geographically diverse North American patient populations.

Study Design: Prospective patient questionnaire before CT scan of the paranasal sinuses.

Methods: Patients with refractory rhinosinusitis were recruited at the University of Texas Medical Branch (Galveston, TX) and the University of Alberta (Edmonton, Alberta, Canada).