[Complications of minimally-invasive percutaneous nephrolithotomy].

Objective: To evaluate the occurrence and management of complications following minimally invasive percutaneous nephrolithotomy (MPCNL).

Methods: The data of 4326 cases of MPCNL from January 2001 to February 2006 were reviewed, including 2451 male cases and 1875 female cases. Their age ranged from 4 to 82 years with a mean of 42 years.

[Treating renal carcinoma with ablation or ablation combined with 125I seed implantation: a report of eleven cases].

Background & Objective: Recently, multi-needles radiofrequency ablation and brachyradiotherapy have been used to treat some solid tumors, such as liver cancer and prostate cancer. This study was to explore the feasibility and efficacy of radiofrequency ablation or ablation combined with 125I seed implantation on treating renal carcinoma.

Methods: From Jun.

[Effects of ureteral stents on rabbit upper urinary tract urodynamics].

Objective: To explore the effects of ureteral stent placement on ureteral peristalsis and the time course of renal pelvic pressure changes.

Method: Forty rabbits were randomized equally into 8 groups, including a control group without placement of ureteral stents. The other 7 groups received ureteral stent placement, which were retained for 0, 1, 2, 3, 4, 7, and 12 weeks respectively.

[Treatment of upper urinary calculi with the PCNL technique (Experience of 20 years)].

Objective: To sum up experience of 20 years for treating upper urinary calculi with percutaneous nephrolithotomy (PCNL) at our institute and assess the safety, feasibility and superiority of the technique.

Methods: We retrospectively investigated 4,014 patients suffering from upper urinary calculi, who were treated with PCNL of 4,014 cases, traditional PCNL was performed in 358, two stage "mini perc" technique in 520 and minimally invasive PCNL in 3,136.

Results: The success rates were 90%, 95% and 98%, the stone free rates were 82%, 86% and 91%.

[Endoscopic management of bilateral ureteral obstruction after radiotherapy].

Background & Objective: It is difficult to stent the obstructed ureters cystoscopically in patients with renal failure caused by radiotherapy for abdominal or pelvic tumors. Commonly draining the kidney with nephrostomy is the only method for the patients. However, external nephrostomy impacts on life quality of the patients.