Abstract
To report our single center experience in comparing mini-percutaneous nephrolithotomy versus flexible ureterorenoscopy for management of renal stones up to 2 cm in anomalous kidneys. Records of the last 30 patients with stones less than 2 cm in anomalous kidney treated by mini-percutaneous nephrolithotomy were reviewed and compared to last 30 patients treated by flexible ureterorenoscopy. Mean stone size was significantly higher in the minipercutaneous nephrolithotomy group (17.90 mm) than in flexible ureterorenoscopy group (14.97mm) (p < 0.001). Mean operative time (80.33 min vs 56.43 min) and fluoroscopy exposure time (4.49 min vs 0.84 min) were significantly higher in the mini-percutaneous nephrolithotomy group than in the flexible ureterorenoscopy group (p < 0.001). The mean post-operative drop in hemoglobin concentration was significantly higher in the mini-percutaneous nephrolithotomy group (0.47 gm versus 0.2 gm) (p < 0.001). Stone free rate after 12 weeks follow up was not statistically significant between the 2 groups (90% in minipercutaneous nephrolithotomy vs 80% in flexible ureterorenoscopy) (FEp = 0.472). Both modalities were found to be safe and effective for treatment of stones less than 2 cm in anomalous kidneys.
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