Holmium laser lithotripsy (HoLL) of ureteral calculi

Rainer M. Kuntz M.D.; Karin Lehrich; Amr Fayad

doi:10.1117/12.427816

21 May 2001 Holmium laser lithotripsy (HoLL) of ureteral calculi

Rainer M. Kuntz M.D., Karin Lehrich, Amr Fayad

Proceedings Volume 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI; (2001) https://doi.org/10.1117/12.427816
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

The effectiveness and side effects of ureteroscopic HoLL of ureteral stones should be evaluated. In 63 patients (17 female, 46 males) a total of 75 stones of 3-20 mm diameter were treated with ureteroscopic HoLL. 18.7 percent of stones were located in the proximal third, 24.0 percent in the middle third and 57.3 percent in the distal third of the ureter. HoLL was performed with small diameter semirigid and flexible ureteroscopes, 220 or 365 nm flexible laser fibers and a holmium:YAG laser at a power of 5-15 W (0.5-1.0 J, 10- 15 Hz). 47 of 63 patients (74.6 percent) were immediately free of stones, and 8 others (12.6 percent) lost their residual fragments spontaneously within two weeks. Another 2 patients received additional chmolitholysis for uric acid stone fragments, i.e. 90.5 percent of patients were stone free by one sitting of ureterscopic HoLL. Of the remaining 6 patients (9.5 percent) who still had residual calculi 4 weeks after HoLL, 2 asymptomatic patients refused any additional treatment, 2 patients preferred treatment with ESWL, and 2 patients had a successful second HoLL, thereby raising the success rate of ureteroscopic HoLL to 93.7 percent. 2 patients showed contrast medium extravasation on retrograde ureterograms, due to guide wire perforation. No ureteral stricture occurred. In conclusion, transurethral ureteroscopic HoLL proved to be a safe and successful minimal invasive treatment of ureteral calculi.

Citation Download Citation

Rainer M. Kuntz M.D., Karin Lehrich, and Amr Fayad "Holmium laser lithotripsy (HoLL) of ureteral calculi", Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); https://doi.org/10.1117/12.427816

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