Abstract
The Yorkshire Lithotriptor Centre acquired a Candela MDL-2000 LaserTripter and a 7.2F Miniscope in February 1990. We present the results obtained in the first 200 patients referred for treatment of ureteric stones or stone fragments. Of 175 patients who were evaluable, 58 had upper ureteric stones, 41 mid-ureteric and 76 lower ureteric stones. Successful laser fragmentation was achieved in 77% of cases and a further 10% were rendered stone-free by the push-bang technique. Ureterolithotomy was required in 9% and the major complication rate was 4%. Ureteric dilatation was not used. Maximum laser energy was required to break 19% of the stones, but no stone was encountered which could not be broken. Laser lithotripsy with this system is highly effective at all levels of the ureter; it is safe and it complements ultrasound-guided extracorporeal lithotripsy.
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