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ORIGINAL ARTICLE
Year : 2022  |  Volume : 33  |  Issue : 3  |  Page : 152-156

Comparison between tubeless mini-percutaneous nephrolithotomy versus retrograde intrarenal surgery for the treatment of 2 to 3cm renal lithiasis


Department of Urology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan

Correspondence Address:
Yeong-Chin Jou
539 Chung-Hsiao Road, Chiayi
Taiwan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/UROS.UROS_54_21

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Purpose: To assess the outcome and safety of tubeless mini-percutaneous nephrolithotomy (mini-PCNL) and retrograde intrarenal surgery (RIRS) to treat patients with renal and upper ureteral stones between 2 and 3 cm. Materials and Methods: Between July 2017 and June 2020, 140 patients underwent tubeless mini-PCNL and RIRS for renal stone size between 2 and 3 cm were enrolled in this study. The outcome was determined immediately after operation on plain radiograph kidney, ureter, and bladder and sonography. Various patient and stone characteristics including perioperative outcomes and complications were evaluated. SPSS version 16. Institutional Review Board of Ditmanson Medical Foundation Chia-Yi Christian Hospital, approval number 2021037. Results: Stone-free rates after the procedure were achieved in 78.4% of patients for the tubeless mini-PCNL and 36.4% of patients for the RIRS Group (P < 0.001). However, the stone-free rates at 3 months after surgery were 78.4% for the tubeless mini-PCNL and 68.2% of the RIRS Group (P = 0.172). The mean operative time per patient was 88.6 ± 27.4 min in the tubeless mini-PCNL group, and it was 129.1 ± 44.8 min in the RIRS groups (P < 0.001). The average hospital stay is 3.4 ± 2.0 days in the tubeless mini-PCNL group and 1.9 ± 1.8 days in the RIRS group (P < 0.001). The postoperative infection rates for the tubeless mini-PCNL and RIRS groups were 9.5% and 6.1%, respectively (P = 0.456). Blood transfusions were needed in one patient in the tubeless mini-PCNL group. Conclusion: Tubeless mini-PCNL and RIRS are safe and effective methods for medium-sized renal calculi. Tubeless mini-PCNL compared to RIRS offers the better outcome of higher stone-free rate and lower operation time, but with longer hospital stay and stone-free rate (3-month postoperative).


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