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KMID : 1214920180240010042
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Soonchunhyang Medical Science
2018 Volume.24 No. 1 p.42 ~ p.46
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Efficacy of the Retrograde Intrarenal Surgery in Renal Stone: An Initial Clinical Experience
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Kim Jae-Ho
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Abstract
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Objective: The management of renal stone has changed radically over the recent decades mainly due to increasing use of flexible ureteroscopy. We report our initial experience of retrograde intrarenal surgery (RIRS) in treating renal stones.
Methods: Twenty-five patients (13 males and 12 females) who underwent RIRS for renal stone by a surgen between March 2016 to December 2017 were retrospectively reviewed. We analyzed the patients’ age, gender, stone location, stone burden, operative time, hospital stay, double J stent indwelling duration, success rates, and incidence of complications.
Results: The mean age of the patients was 54.9 years (range, 29?87 years). The locations of renal stones were nine cases in the renal pelvis, 14 in the renal calyx, and three in the renal diverticulum. The mean body mass index was 25.2 kg/m2 (range, 21.2?29.4 kg/m2). After 1 week since initial session, stone free rate was 72%, but 88% at 3-month follow-up. The mean stone burden was 45.7 mm (range, 16.4?189.3 mm), and mean operative time was 95.0 minutes (range, 30?125 minutes). The mean hospital day was 3.5 days (range, 3?6 days). Double J stent was inserted in all patient during operation and mean indwelling duration was 6.96 days (range, 4?14 days). Most common complication was fever and recovered with conservative therapy.
Conclusion: This study demonstrated that RIRS is safe and effective procedure for management of intrarenal stones with minimal complications. Our study suggests that renal stone burden is significant factor of success rate in RIRS. However, surgical experience and long-term follow-up are needed to confirm the factor of success rate.
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KEYWORD
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Nephrolithiasis, Kidney, Ureteroscopy
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