Tahir Kamran.
Pneumatic Lithotripsy for the management of Ureteric Calculi.
J Coll Physicians Surg Pak Jan ;13(2):101-3.

Objective: To determine the efficacy of Swiss lithoclast in the management of ureteric calculi and complications encountered in lithoclasty. Design: A prospective observational study. Place and Duration of Study: Department of Urology, Lahore General Hospital, Lahore (October 1999 – September 2001). Subjects and Methods: Thirty ureteric stones (in 20 subjects) were treated over a 2-year period. Site, size and number of stones were noted in these patients. Swiss lithoclast, introduced through a ureteroscope, was used to break the stone. The Lithotripsy time was 30 min. Stone breakage was assessed by plain X-ray KUB or retrograde pyelography. Results: Fragmentation was complete in 90 % cases. At one week follow up, 90% of patients were stone-free and at 3 months follow-up 95 % of patients had spontaneous passage of the fragments. Re-treatment was required in 5% cases. Mean hospital stay was 2.4 days. Complications (including both significant and minor) occurred in 25% of cases. Conclusion: Lithoclasty is safe, simple and effective procedure for ureteric calculi. However, complications of the procedure may prolong the usual 48 hours hospital stay seen in uncomplicated cases.

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