Post-operative course prediction during endoscopic sinus surgery in patients with chronic rhinosinusitis.

Abstract

This study aimed to analyse findings of functional endoscopic sinus surgery to estimate the post-operative course of patients with chronic rhinosinusitis. From 2007 to 2015, 291 adult patients with bilateral chronic rhinosinusitis, divided into eosinophilic chronic rhinosinusitis (n = 210) and non-eosinophilic chronic rhinosinusitis (n = 81) groups, who underwent primary functional endoscopic sinus surgery were enrolled. Functional endoscopic sinus surgery findings, scored as operating score, were analysed in relation to pre-operative olfactory recognition threshold and sinonasal computed tomography imaging score, as well as post-operative endoscopic appearance. Operating scores in eosinophilic chronic rhinosinusitis were significantly worse than those in non-eosinophilic chronic rhinosinusitis. The anterior ethmoid sinus and superior meatus were predominantly inflamed. Operating score significantly correlated with pre-operative olfaction recognition threshold, computed tomography score and pre-operative endoscopic appearance score. In eosinophilic chronic rhinosinusitis, higher operating scores were related to post-operative deterioration of endoscopic appearance score. The operating score reflects the course following functional endoscopic sinus surgery. Patients with more severe operative findings require longer post-operative treatment.