Objective:To evaluate the efficacy and safety of plasma bipolar electrotomy in minimally invasive percutaneous nephrolithotomy(mPCNL).Methods:A retrospective analysis was performed on 21 patients with channel bleeding found under direct ureteroscope during mPCNL in First Affiliated Hospital of Nanchang Univer-sity from February 2019 to July 2023,including 13 males and 8 females,aged 20 to 65 years,with an average age of 42.7 years.During the operation,18Fr channel sheath was used to establish a working channel.After the com-pletion of lithotripsis,the ureteroscope and plasma bipolar electric incision ring were placed into the 18Fr channel sheath at the same time,then the plasma bipolar electric incision ring was slowly removed from the sheath to sup-port the exposed bleeding points through electric coagulation(power 120 W)to achieve rapid hemostasis.Results:All the 21 patients had successful hemostasis without DSA embolization or conversion to open surgery.The opera-tion time was 20-90 min,with an average of(49.0±15.1)min.The hemostasis time was 2-10 min,with an average of(3±2)min,without intraoperative or postoperative blood transfusion,and all patients achieved tube-less.KUB radiograph or color ultrasonography of urinary system were reexamined after operation,and no stone remained in 16 patients.Five patients with residual calculi in parallel calices were removed after flexible uretero-scopic laser lithotripsy or extracorporeal shock wave lithotripsy(ESWL).Conclusion:Plasma bipolar electrotomy ring is a safe and effective method for hemostasis in mPCNL.
plasmabipolar electric cutting ringminimally invasive percutaneous nephrolithotomyelectro-coagulation for hemostasis
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