Özet:

Objective: We aimed to investigate the effect of hydronephrosis on operative duration, dilatation duration, fluoroscopy time, stone free state and bleeding upon percutaneous nephrolitotomy PNL . Materials and Methods: Data of 405 patients underwent PNL in our clinic between January 2009 and December 2012. The patients were divided into three groups as no hydronephrosis Group 1 , low degree hydronephrosis Group 2 , high degree hydronephrosis Group 3-4 . Three groups were compared according to operative parameters. Results: Group 1 consisted of 120, group 2 consisted of 160 and group 3 consisted of 125 patients. Mean patient age was 47,76±15,14, 42,31 ±15,06 and 49,05±11,50 for Groups 1,2 and 3 respectively. All groups had similar previous operation history, access technique, stone localization and stone load. Flouroscopy times were 5,45±3,74 ,6,14±4,39 and 6,41±4,08 minutes for Groups 1, 2 and 3 respectively. Duration for guidewire axcess was 8,63±5,79, 5,58±3,5 and 3,32±1,82 minutes for Groups 1, 2 and 3 respectively p

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