[Experience in the clinical application of semirigid mini-urethral endoscopes in the diagnosis and treatment of urinary bladder diseases]. / Opyt klinicheskogo primeneniia poluzhestkikh miniureterorenoskopov v diagnostike i lechenii mochekamennoi bolezni.

We compared efficacy and safety of clinical application of modern semirigid miniureterorenoscopes (MURS) and standard hard-lens ureterorenoscopes (URS). The results of 335 transurethral endoscopic operations on the ureter have been analysed. Positive results of ureteroliths elimination by lithotripsy and lithoextraction were observed in 100 (77.5%) patients of group 1 (hard-lens URS) and in 175 (94.6%) patients of group 2 (semirigid MURS). Ureteral perforation occurred 3 times more often in group 1 patients than in group 2 (3.1 and 1.08%, respectively). A total number of complications observed in group 1 and 2 in the course of transurethral ureterolithotropsy and lithoextraction reached 6.3 and 1.08%, respectively. Ureterolithotomy was performed in group 2 eight times less frequently than in group 1 patients (2.1 and 17.9%, respectively). Ureteropyeloscopy made by semirigid MURS is a valuable therapeutic and diagnostic aid which raises efficacy of transurethral endoscopic manipulations, significantly lowers traumaticity of the upper urinary tracts and reduces to minimum the number of intra- and postoperative complications.

[Endoscopic treatment of bladder diverticula]. / Endoskopicheskoe lechenie divertikulov mochevogo puzyria.

Transurethral endoscopic incision of the urinary bladder's diverticular neck has been performed in 29 patients aged 44 to 90 years (mean age 65 years). 25(86.2%) patients had verified concomitant diseases and high anesthesia risk prohibiting radical surgery. According to preoperative diagnosis, the volume of the diverticula ranged from 20 to 700 ml, the diameter of the neck--from 0.3 to 2.0 cm. 10 patients had multiple diverticula. Uroflowmetry registered the maximal urinary flow rate (Qmax) within 2.1-5.3 ml/s. In all the patients surgery was performed under epidural anesthesia, simaltaneously with transurethral resection (TUR) of benign prostatic hyperplasia in 18 patients, with TUR of the urinary bladder neck or incision of the prostate because of its sclerosis in 11 patients. In 2 cases there was also TUR of the bladder for papillary cancer involving the bladder wall and the diverticulum, in 6 cases one-stage pneumatic or mechanical cystolithotripsy was performed. No intraoperative complications occurred. After the operation all the patients resumed normal micturition. Control examination after 6-48-month follow-up Qmax rose to 14.1-23.0 ml/s. Neither ultrasound investigation nor cystography detected diverticulum in 13 patients. The size of the diverticulum diminished in size in 16 patients. Residual urine in large diverticula (14 patients) was 50 ml maximum. 12 months after the operation 1 patient developed recurrent sclerosis of the prostate with reappearance of residual urine. He was reoperated (TUR of the prostate) without incision of the neck of the diverticulum. Postoperative complications were the following: mild electric burn of the thigh (1 case), acute epididimitis treated conservatively (1 case) and early postoperative bleeding which required endoscopic revision of the bladder and coagulation of the bleeding vessel from the cut neck of the diverticulum (1 case). Thus, transurethral incision of the bladder's diverticular neck is effective and low-traumatic intervention which in patients with severe somatic pathology is an alternative to the open surgery, while in patients without such pathology it does not complicate open operation (diverticulectomy) if it becomes necessary.