alexa Treatment of Proximal Ureteral Calculi: Holmium:Yag Laser Ureterolithotripsy Versus Extracorporeal Shock Wave Lithotripsy


Medical & Surgical Urology


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Purpose: We compared the safety and efficacy of ureteroscopy with intracorporeal holmium:YAG laser lithotripsy and extracorporeal shock wave lithotripsy (ESWL) (Dornier Medical Systems, Inc., Marietta, Georgia) for proximal ureteral calculi.

Materials and Methods A total of 67 patients underwent 81 primary procedures, including in situ ESWL with a DoLi 50 lithotriptor (Dornier Medical Systems, Inc.) or ureteroscopy combined with holmium:YAG laser lithotripsy for proximal ureteral calculi.

Results Of the primary procedures 81 involved proximal ureteral calculi, including 35 done for calculi 1 cm. or greater. The initial stone-free rate in patients with calculi 1 cm. or greater was 93% for ureteroscopy combined with holmium:YAG laser lithotripsy and 50% for in situ ESWL. The efficiency quotient for treating proximal ureteral calculi 1 cm. or greater was calculated as 0.76 for ureteroscopic lithotripsy and 0.43 for ESWL. For proximal ureteral calculi less than 1 cm. the initial stone-free rate was 100% and 80% for ureteroscopic laser lithotripsy and ESWL, respectively. The efficiency quotient was calculated as 0.81 for ureteroscopic lithotripsy and 0.72 for ESWL for treating proximal ureteral calculi less than 1 cm. There were no major complications in either group and all procedures were performed on an outpatient basis.

Conclusions Our study demonstrates that ureteroscopy combined with holmium:YAG laser lithotripsy is an acceptable treatment modality for all proximal ureteral calculi and excellent results are achieved for calculi 1 cm. or larger. Although the stone-free rate was better for smaller stones with ureteroscopic laser lithotripsy, efficiency quotients were similar. Therefore, ESWL should remain first line therapy for proximal ureteral calculi less than 1 cm. because of less morbidity, and a lesser anesthesia and analgesic requirement.

This article was published in The Journal of Urology and referenced in Medical & Surgical Urology

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