Lasers in the management of calcified urinary tract stents

Unyime O. Nseyo M.D.; Hari S. G. R. Tunuguntla; Michael Crone

doi:10.1117/12.482786

12 September 2003 Lasers in the management of calcified urinary tract stents

Unyime O. Nseyo M.D., Hari S. G. R. Tunuguntla, Michael Crone

Proceedings Volume 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII; (2003) https://doi.org/10.1117/12.482786
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

Indwelling double J ureteral stents are used for internal urinary diversion for ureteral obstruction and post-surgical drainage of the upper urinary tract. Stent calcification is a serious complication especially in those with forgotten stents. In a retrospective review of 16 patients (10 male and 6 female) we found holmium laser to be highly effective in the management of calcified stents. Encrustations/calcifications were noted on the distal end of the sent in 6 patiens (37.5%), middle and distal portions in 2 patients (12.5%), along the entire length of the stent in 3 patients (18.75%), lower portion of the stent in 4 patients (25%) and at the upper and lower ends of the stent in one patient (6.25%). Cystolitholapaxy, retrograde ureteroscopy (URS) with holmium: YAG (yttrium-aluminum-garnet) laser intracorporeal lithotripsy, percutaneous nephrostolithotomy (PNL) and antegrade URS with holmium: YAG laser intracorporeal lithotripsy were effectively performed without intraoperative complications. Lithotripsy became necessary before stent removal in 11 patients (68.75%). Holmium laser lithotripsy was useful in managing 7 patients (43.75%), and shockwave lithotripsy (SWL) in 6 patients (37.5%). In two patients (12.5%) both holmium and SWL were used before the stent can be removed.

Citation Download Citation

Unyime O. Nseyo M.D., Hari S. G. R. Tunuguntla, and Michael Crone "Lasers in the management of calcified urinary tract stents", Proc. SPIE 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII, (12 September 2003); https://doi.org/10.1117/12.482786

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