Clinical observation of disposable flexible ureteroscopy in the treatment of 2-3 cm renal calculi with flexible negative pressure external sheath
Objective:To evaluate the efficacy and safety of flexible external sheath for the treatment of 2-3 cm renal calculi.Methods:The clinical data of 70 cases of 2-3 cm renal calculi in Second Affiliated Hospital of Zhengzhou University from March 2022 to May 2023 were retrospectively analyzed,including 38 cases in the retrograde intrarenal surgery(RIRS)group and 32 cases in the super-mini percutaneous nephrolithotomy(SMP)group.There were no significant differences in stone diameter,stone location,CT value or degree of hydrone-phrosis between the two groups(P＞0.05).The operation time,postoperative complications,hemoglobin decline and stone removal rate on the first day and 2 weeks after operation were observed.Results:The operation time of SMP group was(52.25±6.27)min,which was better than that of RIRS group([65.76±9.27]min),but the de-crease of hemoglobin([8.56±3.85]g/L)was greater than that of RIRS group([5.73±3.25]g/L).The 1-day stone removal rate(65.8％)in the RIRS group was lower than that in the SMP group(87.5％),but the 2-week stone removal rate(86.8％vs 93.8％)showed no significant difference between the two groups.Conclusion:The application of RIRS using negative pressure extractive sheath for 2-3 cm renal calculi is safe,effective,and more minimally invasive,and can maintain a stone removal rate similar to SMP in the long term.
NETL
NSTL
万方数据
