RUC(1).mp4

Retrograde ureteral catheterization (RUC) was performed with intravenous anesthesia combined with caudal anesthesia, continuous epidural anesthesia or laryngeal mask airway. An F7.5-10.8 cystoscope (Karl Storz, Germany) was placed through the urethra to observe the bladder and the ureteral orifice; An F3 ureteral catheter (Shanghai Kangge, China) was inversely inserted into the ureter through the cystoscope until urine was evident. Sediment-like calculi, floc, or crystals ejection from the ureteral orifice was observed during surgery after dredging with RUC through a cystoscope. On dragging the catheter back and forth, most of the calculi loosen, break, and fall into the bladder, eventually relieving the ureteral obstruction.

逆行输尿管导管置入术（Retrograde ureteral catheterization, RUC）采用静脉麻醉联合骶管麻醉、持续硬膜外麻醉或喉罩通气的麻醉方案。经尿道置入F7.5-10.8型膀胱镜（德国卡尔史托斯Karl Storz），以观察膀胱及输尿管口；经膀胱镜将F3型输尿管导管（中国上海康歌）逆行插入输尿管，直至见尿液流出。术中经膀胱镜通过RUC进行疏通操作后，可观察到输尿管口排出泥沙样结石、絮状物或结晶。来回拖动导管时，多数结石可松动、碎裂并脱落至膀胱内，最终解除输尿管梗阻。