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Objective: To observation on Poly- Flexible Ureteroscopy(FURS) retrograde intrarenal surgery (RIRS) combined with ultrasound guided all seeing needle Microperc to treatment of Lower Pole Renal Calculi larger than 2cm stone with infundibulopelvic anglei¼ˆIPAi¼‰less than 60 degrees. Method: From January 2016 to January 2017, 63 patients with IPA angle less than 60 degrees in our hospital were treated with Poly-FURS retrograde intrarenal surgery combined with ultrasound guided all seeing needle Microperc, the patients stone sized more than 2 mm and located in the lower-pole calyx were retrospectively reviewed. Multiple stones were found in 37 cases and solitary stones in 26. Male patients used 70cm Poly-FURS, and the female 42cm.The clinical data including the operation time, the amount of bleeding, the stone free rate(SFR), the incidence of postoperative complications. Results: The operation time was 30~60min, mean 45min, FURS lithotripsy time was 20~35min, ultrasound guided all seeing needle puncture time was 3~5min, and lithotripsy time was 8~12min. 48 cases mainly lithotripsy with FURS and 15cases with micro-Percutaneous nephrolithotomy(micro-perc), 3 cases of fever as postoperative complications, 2 cases of pain; In non blood transfusion patients. The postoperative hospital stay was 2~3 days, with an average of 2 days. Postoperative residual stones were observed in 3 cases(SFR 95.2%) and treated with ESWL after 2 weeks. The stone clearance rate was 98.4% (62/63)after one month. Conclusion: The results of our study demonstrated that Poly- FURS retrograde intrarenal surgery combined with ultrasound guided all seeing needle Microperc had a significant effect on the success rate of lower Pole Renal Calculi larger than 2cm.

journal of current medical research and opinion

Clinical effects of Poly- Flexible Ureteroscopy combined with ultrasound guided all seeing needle Microperc to treatment of Lower Pole Renal Calculi larger than 2cm with infundibulopelvic angle less than 60 degrees