A prospective randomized comparison of type of nephrostomy drainage following percutaneous nephrostolithotomy: large bore versus small bore versus tubeless.

Purpose: We compared postoperative outcomes among tubeless, conventional large bore nephrostomy drainage and small bore nephrostomy drainage following percutaneous nephrostolithotomy (PCNL) in a prospective randomized fashion.

Materials And Methods: Between January and June 2001, 30 patients undergoing PCNL were randomized to receive conventional large bore (20Fr) nephrostomy drainage (group 1, 10 patients), small bore (9Fr) nephrostomy drainage (group 2, 10 patients) or no nephrostomy drainage (group 3, 10 patients). Inclusion criteria included a single subcostal tract, uncomplicated procedure, normal preoperative renal function and complete stone clearance.

Percutaneous nephrolithotomy for complex pediatric renal calculus disease.

Background And Purpose: Pediatric renal calculus disease has been a management dilemma in view of the concern about the effects of the various treatment modalities on the growing kidney, the significant recurrence rate, and the long-term outcome. We report our experience with percutaneous nephrolithotomy (PCNL) monotherapy in staghorn or complex pediatric renal calculi.

Patients And Methods: We retrospectively analyzed the case records of 116 patients younger than 15 years who underwent PCNL.

Nephrolithiasis associated with renal insufficiency: factors predicting outcome.

Background And Purpose: Renal calculous disease may be associated with various degrees of renal insufficiency secondary to a combination of obstruction, urinary infection, frequent surgical intervention, and coexisting medical disease. Herein, we present our data on the progression of renal function in patients with stones associated with renal insufficiency and assess the significance of various factors that could predict postoperative renal function deterioration.

Patients And Methods: Data were obtained from 4400 patients undergoing treatment for calculous disease at our institute since 1991.

The Dretler stone cone: a device to prevent ureteral stone migration-the initial clinical experience.

Purpose: Retrograde stone migration during ureteroscopic lithotripsy occurs in 5% to 40% of proximal and distal ureteral stone cases. This migration increases morbidity and the need for auxiliary procedures. The Dretler stone cone (Medsource, Norwell, Massachusetts) is a novel device to prevent proximal stone migration and facilitate fragment extraction during ureteroscopic lithotripsy.