Comparison of efficacy and safety between UMP and RIRS in the treatment of 1-2 cm kidney stones
Objective:To compare the efficacy and safety between ultra-mini percutaneous nephrolithotripsy(UMP)and retrograde intrarenal surgery(RIRS)in the treatment of 1-2 cm renal calculus.Methods:A prospec-tive analysis was performed on 60 patients with renal calculus with a diameter of 1-2 cm admitted to our hospital and Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from January 2020 to December 2022,and they were randomly divided into UMP group(n=30)and RIRS group(n=30).The operative indexes and postoperative conditions of the two groups were compared.Results:The operation time in RIRS group was longer than that in UMP group,and the difference was statistically significant(P＜0.05).The hospitalization cost in UMP group was less than that in RIRS group,and the difference was statistically significant(P＜0.05).There was no significant difference in stone removal rate 1 month or 3 months after surgery between the two groups(P＞0.05).There was no significant difference in lithotripsy time or hospitalization days between the two groups(P＞0.05).The blood WBC and CRP of the two groups increased after surgery,and the difference was statistically significant(P＜0.05).However,the degree of increase between the two groups has no significant difference(P＞0.05).The hemoglobin value of the two groups decreased after surgery,and the difference was statistically significant(P＜0.05).Similarly,the degree of decline has no significant difference between the two groups(P＞0.05).However,there was one case of severe hematuria in the UMP group,and the hemoglobin de-creased by 62 g/L after surgery compared with that before surgery.The patient was cured by digital subtraction angiography(DSA)interventional treatment.The PCT and creatinine levels of the two groups after operation had no significant changes compared with those before operation.There was no significant difference in the postopera-tive complication rate between the two groups(P＞0.05).Conclusion:Both UMP and RIRS are effective surgical treatments for patients with 1-2 cm kidney stones for similar postoperative SFR,complication rate and hospital stay.UMP has short operation time and low hospitalization cost,but the risk of bleeding exists.RIRS has long operation time and high hospitalization cost,but the risk of bleeding is lower.
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