Study on the applicability and safety of perfusion method in the treatment of upper urinary tract stones with flexible ureteroscopy
Objective:To analyze and compare the safety and reliability between two perfusion methods in the treatment of upper urinary tract stones with flexible ureteroscopy.Methods:A retrospective comparative analysis was conducted on the surgical time,water consumption,stone clearance efficiency,and incidence of complications such as infection,pain,and bleeding in 82 patients with upper urinary tract stones treated with retrograde intra-renal surgery(RIRS)using manual infusion and improved automatic infusion mode in the past year.Results:Data of the manual injection time(62.6±28.2)minutes,water consumption(2 280±417)mL,stone clearance rate 92.5％,hospital stay(6.2±1.1)days,postoperative fever in 6 cases,low back pain in 10 cases,and renal pelvic hemorrhage in 2 cases were compared to data of the improved automatic perfusion time(53.2±21.8)minutes,water consumption(2 092±356)mL,stone removal rate 95.2％,hospital stay(5.1±1.6)days,postoperative fever in 1 case,and low back pain in 2 cases.Results showed no significant difference in operation time between the two perfusion methods.However,shorter hospitalization time,less intraoperative water consumption,higher stone clearance rate,and significantly fewer complications such as fever and pain were found in the latter one,and all the results were statistically significant(P＜0.05).Conclusion:The use of improved automatic infusion for RIRS is safer and more convenient,so is worth promoting and replaces manual infusion.
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