Clinical Predictors of Positive Computed Tomography Findings in Patients with Nasal Obstruction: A Retrospective Cohort Study

Background: Nasal obstruction is one of the most common symptoms encountered in the otorhinolaryngology clinic, with diverse etiology including deviated nasal septum (DNS) and sinusitis. When surgical intervention is considered, the referring surgeon must decide whether preoperative imaging is indicated. Objectives: To identify clinical and physical examination predictors associated with significant sinus findings on computed tomography (CT) imaging in patients with nasal obstruction. To define specific factors in the medical history and physical examination of patients with nasal obstruction, which are associated with positive CT findings. Methods: We conducted a retrospective review of patients presenting with nasal obstruction. We collected demographic data, clinical and physical examination findings, CT imaging results, and surgical outcomes. Results: A total of 242 patients were included (mean age 38.5 ± 16.8 years, 65.7% male), all of whom underwent CT imaging prior to surgery. On univariate analysis, nasal edema, ostiomeatal complex (OMC) blockage, or edema, were all associated with positive findings from the CT (defined as Lund–Mackay > 3). On multivariate analysis, OMC obstruction or edema were associated with positive CT findings. Conclusions: A thorough patient history and detailed physical examination are essential for evaluating nasal obstruction and identifying patients who may benefit from preoperative CT imaging. Specific clinical symptoms can indicate chronic sinusitis, thus guiding surgeons to perform preoperative imaging for accurate diagnosis and targeted treatment beyond deviated nasal septum management.