Two groups of 50 consecutive patients each, with distal ureteric calculi, were treated by ureteroscopy or in situ ESWL (Dornier HM-4 lithotriptor) in order to establish the effectiveness of ESWL at the distal portion of the ureter. In comparison to ureteroscopy, ESWL for distal ureteral calculi was performed on an outpatient basis, required less time, patients had more rapid convalescence and the procedure was simpler and safer. The overall success rate was 100% for ureteroscopy and 92% for ESWL. Our observations showed that in situ ESWL with the Dornier HM-4 lithotriptor is the method of choice for the treatment of distal ureteral calculi.
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