Laparoscopic vs Open Pyeloplasty in Children: Results of a Randomized, Prospective, Controlled Trial.

Purpose: Open dismembered pyeloplasty is the preferred repair for ureteropelvic junction obstruction. Minimally invasive techniques have been applied to the original open approach but no clear advantage has been demonstrated for these technological advances. We evaluate outcomes between transperitoneal laparoscopic and open pyeloplasty in children.

Bladder stones after bladder augmentation are not what they seem.

Introduction: Bladder and renal calculi after bladder augmentation are thought to be primarily infectious, yet few studies have reported stone composition.

Objective: The primary aim was to assess bladder stone composition after augmentation, and renal stone composition in those with subsequent nephrolithiasis. The exploratory secondary aim was to screen for possible risk factors for developing infectious stones.

Calibration of a novel, laparoscopic, 12-mm, ultrasound, image-guided, high-intensity focused ultrasound probe for ablation of renal neoplasms.

Objective: To calibrate a 12-mm high-intensity focused ultrasound (HIFU) probe to produce histologically verifiable complete tissue necrosis through thermal energy delivery while maintaining safety in ablation of porcine renal tissue.

Methods: The study was approved by the animal research committee at our institution. A HIFU probe on a fixed arm was introduced, and ablation was subsequently carried out robotically (under computer control) at 2 planned locations within each kidney at varying energy levels.

Cutting for stone in augmented bladders-what is the risk of recurrence and is it impacted by treatment modality?

Purpose: Bladder stones are common after bladder augmentation, often resulting in numerous procedures for recurrence. We sought to determine whether surgical technique and stone fragmentation are significant predictors of bladder stone recurrence after bladder augmentation.

Materials And Methods: We retrospectively reviewed 107 patients treated for first bladder stones at our institution.

Split-dose bowel preparation for colonoscopy and residual gastric fluid volume: an observational study.

Background: Split-dose bowel preparations for colonoscopy are more effective and better tolerated than preparations given entirely the day or evening before the procedure; however, some resistance to split-dose preparation stems from concerns about an increased risk of aspiration with same-day preparation.

Objective: We sought to evaluate residual gastric volumes in patients after split-dose bowel preparations.

Design: Prospective measurement of residual gastric volumes in patients undergoing same-day EGD and colonoscopy after split-dose bowel preparations, patients undergoing EGD alone, or patients undergoing EGD and colonoscopy after bowel preparation given entirely the evening before the procedure.

Willingness to undergo split-dose bowel preparation for colonoscopy and compliance with split-dose instructions.

Background: Split-dose bowel preparations for colonoscopy have superior effectiveness compared with giving all the preparation the evening before colonoscopy. Some physicians believe that split-dose preparations would be unpopular with patients scheduled for early morning colonoscopies.

Aims: To determine the willingness of potential patients to undergo split-dose bowel preparation for colonoscopy and the actual adherence of colonoscopy patients to split-dose instructions.