The outcome of endoscopic sinus surgery: correlation with computerized tomography score and systemic disease

We have prospectively analysed the outcome of patients undergoing endoscopi c sinus surgery for chronic rhinosinusitis in relation to the Lund and Mack ay system of scoring the preoperative computerized tomography scan for exte nt of disease, and also investigated the possible links of outcome to the p resence or absence of systemic respiratory tract conditions which may relat e to the pathogenesis of chronic rhinosinusitis. Statistical analysis of th e data by chi(2) test, unpaired t-test and Logistic regression analysis has shown significant correlation between outcome at 2 years and preoperative computerized tomography scan score, but that the most statistically signifi cant factor determining the success or failure of surgery is the presence o f a systemic disease known to predispose to chronic rhinosinusitis.