Does stone dimension affect the effectiveness of ureteroscopic lithotripsy in distal ureteral stones?
OBJECTIVE: To investigate whether stone dimension is a restrictive factor for ureterorenoscopic procedures. MATERIALS AND METHODS: A group of 416 patients who had undergone ureterorenoscopic pneumatic lithotripsy (URS-PL) for lower ureteral stones between January 1999 and June 2006 in our clinic had been evaluated retrospectively. Two hundred and seventy (270, 64.9%) patients were men and 146 (35.1%) were women. The mean age of the patients was 36.61 (+/- 12.43) years. Patients were grouped according to stone dimension; 193 patients with stones smaller than 1 cm being group 1 and 223 patients with stones > or = 1 cm in dimension being group 2. Stone-free rate, operative time and rate of complications of the groups were compared. Pearson’s correlation test, chi2 test, Fischer’s exact test and Student’s t-test were used for the statistical analysis. The p value was accepted as being meaningful if p < 0.05. RESULTS: For group 1, the mean operative time was 39.19 (+/- 18.33) min. Proximal
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