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PURPOSE The optimal management of lower pole renal calculi is controversial. We compared shock wave lithotripsy (SWL) and ureteroscopy (URS) for the treatment of patients with small lower pole stones in a prospective, randomized, multicenter trial. MATERIALS AND METHODS A total of 78 patients with 1 cm or less isolated lower pole stones were randomized to(More)
PURPOSE The efficacy of shock wave lithotripsy and percutaneous stone removal for the treatment of symptomatic lower pole renal calculi was determined. MATERIALS AND METHODS A prospective randomized, multicenter clinical trial was performed comparing shock wave lithotripsy and percutaneous stone removal for symptomatic lower pole only renal calculi 30 mm.(More)
PURPOSE To assess the current indications, perioperative morbidity, and stone-free outcomes for percutaneous nephrolithotomy (PCNL) worldwide. PATIENTS AND METHODS The Clinical Research Office of the Endourological Society (CROES) collected prospective data for consecutive patients who were treated with PCNL at centers around the world for 1 year. PCNL(More)
Our purpose here is to test the hypothesis that Randall's plaques, calcium phosphate deposits in kidneys of patients with calcium renal stones, arise in unique anatomical regions of the kidney, their formation conditioned by specific stone-forming pathophysiologies. To test this hypothesis, we performed intraoperative biopsies of plaques in kidneys of(More)
PURPOSE Holmium laser prostate enucleation is a contemporary treatment for benign prostatic hyperplasia. We report our experience with more than 1,000 procedures. MATERIALS AND METHODS From June 1998 to March 2009 we performed 1,065 holmium laser prostate enucleations. After receiving institutional review board approval we retrospectively reviewed the(More)
The results of extracorporeal shock wave lithotripsy (ESWL*) and percutaneous nephrostolithotomy for the treatment of lower pole nephrolithiasis were examined in 32 consecutive patients undergoing percutaneous nephrostolithotomy at the Methodist Hospital of Indiana and through meta-analysis of publications providing adequate stratification of treatment(More)
CONTEXT The introduction of new lithotripters has increased problems associated with shock wave application. Recent studies concerning mechanisms of stone disintegration, shock wave focusing, coupling, and application have appeared that may address some of these problems. OBJECTIVE To present a consensus with respect to the physics and techniques used by(More)
Using a combination of intra-operative digital photography and micro-biopsy we measured renal cortical and papillary changes in five patients with primary hyperparathyroidism and abundant calcium phosphate kidney stones. Major tissue changes were variable papillary flattening and retraction, dilation of the ducts of Bellini, and plugging with apatite(More)
Although calcium oxalate (CaOx) renal stones are known to grow attached to renal papillae, and specifically to regions of papillae that contain Randall's plaque (interstitial apatite deposits), the mechanisms of stone overgrowth on plaque are not known. To investigate the problem, we have obtained biopsy specimens from two stone patients that included an(More)