Relocation of lower pole stone during retrograde intrarenal surgery fails to improve stone free rate
Relocation of lower pole stone during retrograde intrarenal surgery fails to improve stone free rate at 1 month suggests a recent study published in the Journal of Endourology.
A study was conducted to compare the stone free rate of in situ treatment versus relocation and lithotripsy for lower pole stones of less than 2 cm in size during retrograde intrarenal surgery.
This prospective randomized study was undertaken from June 2019 to May 2020 in patients undergoing retrograde intrarenal surgery for lower pole renal stones less than 2 cm in diameter. Patients were randomized into the In situ lithotripsy Group and the Relocation lithotripsy Group. In situ lithotripsy group underwent laser lithotripsy in the lower pole without relocation of calculus, and the relocation lithotripsy group had their stones relocated to a favourable location using a tipless nitinol basket followed by laser lithotripsy. The laser lithotripsy was achieved using Holmium:YAG laser ( 120Watt) with 200 µm laser fiber. Double J stent was placed in all the patients at the end of the procedure. Patient demographics, stone characteristics, operative outcomes and complications were evaluated. Stone free rate was determined at one month postoperatively with X-ray and ultrasound KUB.
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