EVALUATION OF PROGNOSTIC FACTORS IN ENDOSCOPIC SINUS SURGERY

A retrospective analysis of 115 consecutive patients who underwent end oscopic sinus surgery for chronic sinusitis was conducted to evaluate the effect on outcome of variables including previous sinus surgery, a llergy, asthma, and computed tomography stage of disease. Outcome was assessed in each patient by a survey in which the patient rated the be nefit of surgery in terms of percent improvement in different symptoms compared with symptoms before surgery. Outcome was also assessed by t he need for revision surgery mid the presence of endoscopic criteria f or failure. The results indicate that allergy and previous sinus surge ry are associated with lower individual symptom scores, but no variabl e was associated with overall symptomatic failure. Previous sinus surg ery was strongly associated with the need for subsequent revision surg ery. The computed tomography stage was strongly associated with endosc opic evidence of failure. In conclusion, both history of previous sinu s surgery and computed tomography stage of disease are correlated to p oor outcomes after endoscopic sinus surgery.