Nakayama M
Department of Urology, Okinawa Red Cross Hospital.
Hinyokika Kiyo. 1988 Jan;34(1):79-85.
Ten patients with renal pelvic stones were treated by rigid ureterorenoscopy. Ultrasound lithotriptor and biopsy forceps were used for disintegrating the stones. The stones of 5 patients were disintegrated into small fragments that passed spontaneously within 2 months after the procedure. The stones of 2 failed to disintegrate for migration of the stones into the calices. Retention of the large fragments in the calices occurred in 3 patients. Residual fragments of urate were dissolved completely by urine alkalinization 5 months later in 1 patient. In another patient the fragment had fallen into the ureter and it was extracted by ureterorenoscopy 8 months later. After all, the success rate was 70% in this series. The disintegration of stones in the small intrarenal pelvis has proved to be difficult when they are approached by retrograde ureterorenoscopy. There were 2 complications of ureterorenoscopy: extravasation of urine from the renal sinus, and from the upper ureter. These minor injuries were treated by stenting without sequelae.
10例肾盂结石患者接受了硬性输尿管肾镜治疗。使用超声碎石器和活检钳破碎结石。5例患者的结石被碎成小碎片，术后2个月内自行排出。2例患者的结石因结石移入肾盏而未能破碎。3例患者的大碎片滞留在肾盏中。1例患者尿酸盐残留碎片在5个月后通过尿液碱化完全溶解。另一例患者的碎片落入输尿管，8个月后通过输尿管肾镜取出。总体而言，该系列的成功率为70%。当通过逆行输尿管肾镜处理肾内小肾盂中的结石时，已证明结石破碎困难。输尿管肾镜有2例并发症：尿液从肾窦和上段输尿管外渗。这些轻微损伤通过置入支架治疗，无后遗症。
