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The incidence of renal tumor on the allograft kidney is relatively rare. There is no standard treatment available for the management of such cases. However, if technically feasible nephron-sparing surgical approaches, whether open or minimally invasive, should be preferred for the management of these challenging cases. To our knowledge, there is no pure laparoscopic technique reported in the literature but only 3 cases of robot-assisted partial nephrectomy. In this article, we aimed to present the application of pure transperitoneal laparoscopic partial nephrectomy for the management of a renal mass on the allograft kidney.

Yakupoglu, Yarkin Kamil/0000-0002-4764-0289; Mercimek, Mehmet Necmettin/0000-0002-0680-4451; Ozden, Ender/0000-0003-3196-4024 WOS: 000303470600012 PubMed: 22309786 OBJECTIVE To present our long-term follow-up data from patients with kidney stones and chronic kidney disease to identify the factors that could help predict the likelihood of long-term deterioration in renal function. METHODS From January 2002 to July 2010, we performed 1117 percutaneous nephrolithotomy (PNL) procedures in 1051 patients. We retrospectively analyzed 69 PNL procedures for 67 patients (47 men and 20 women) in whom the estimated glomerular filtration rate (eGFR) was 5%; and group 3, an eGFR decrease of

Sahin, Ahmet/0000-0003-1354-988X; Mercimek, Mehmet Necmettin/0000-0002-0680-4451; Ozden, Ender/0000-0003-3196-4024 WOS: 000277408800016 PubMed: 19931900 OBJECTIVES To compare the stone-free rate and complications between horseshoe and normal kidneys. METHODS Between December 1997 and June 2008, a total of 2401 patients with 2618 renal units underwent percutaneous nephrolithotomy (PCNL). During this period, we retrospectively reviewed the data of 46 patients with 50 (1.9%) renal units with horseshoe kidneys treated by PCNL. We compared the success and complication rate in horseshoe kidney and normal kidney. RESULTS Fifty PCNL were performed in the above-mentioned 46 patients with a mean age of 41.6 years. The average stone burden ranged from 100 to 4900 mm(2) (mean, 644 +/- 135 mm(2)). The stones were located in the renal pelvis in 13 (26%), calices in 17 (34%), and in both in 11 kidneys (22%). A single tract was used in 42 kidneys (84%), and 2 tracts were created in the remaining 8 (16%). Major complications were seen in 8 PCNL procedures (16%). A detailed comparison between horseshoe and normal kidneys showed that stone burden, operation time, stone-free rates, and auxiliary procedure rates were similar. The only statistically significant difference was detected in the number of access, which is more in normal kidneys. Logistic regression analysis did not reveal that horseshoe kidney did not have any negative effect on success after PCNL. CONCLUSIONS Despite the anatomic abnormalities, PCNL is a safe and effective treatment option for calculi both in the horseshoe kidney and the normal kidney with the similar success and complications rates. UROLOGY 75: 1049-1052, 2010. (C) 2010 Elsevier Inc.