The relationship between endoscopic and radiologic findings and olfactory status of patients with chronic rhinosinusitis with nasal polyps before and after the endoscopic sinus surgery

IntroductionThis study was attempted to investigate the relationship between radiologic and endoscopic findings and pre- and post-operative olfactory scores in chronic rhinosinusitis with nasal polyps.Materials and methodsIn this study, 40 patients aged 19-64years with chronic rhinosinusitis with nasal polyps (CRSwNP) undergoing endoscopic sinus surgery were involved. The patients' olfactory status was evaluated using Smell Identification Test (Iran SIT) before and 3months after the surgery. Patients' nasal endoscopic signs were recorded using Modified Lund-Kennedy scoring system before and 3months after the surgery and radiological symptoms were recorded based on Lund-Mackay CT scoring before the surgery. Then the relationship between olfactory status and endoscopic and radiological findings was investigated.ResultsWith respect to mean of olfactory score, a significant difference was observed before and after the surgery (p value =0.001). There was a significant difference between means of pre- and post-operative endoscopy scores (p value=0.001). Pre-operative endoscopic and CT scan scores had a negative correlation with pre- and post-operative olfactory scores (p value<0.05). Pre-op. olfactory scores had negative correlation with post-op. endoscopy scores (p value=0.02). Post-op. olfactory scores had negative correlation with post-op. endoscopy scores but was not statistically significant (p value=0.22).ConclusionOur results revealed that pre-operative endoscopy and radiology findings were consistent with the olfactory status of patients with CRSwNP before and after endoscopic sinus surgery.