Stone fragmentation during shock wave lithotripsy is improved by slowing the shock wave rate: studies with a new animal model.

Purpose: The current trend toward ungated shock wave lithotripsy means that more patients are being treated with shock waves delivered at a rapid rate (120 shock waves per minute or greater). However, no benefit of an increased shock wave rate has been shown and in vitro studies indicate that slowing the shock wave rate actually improves stone fragmentation. We tested the effect of the shock wave rate on stone comminution in a new animal model.

Major complications in 213 laparoscopic nephrectomy cases: the Indianapolis experience.

Purpose: We assessed the incidence of and analyzed factors that may help prevent major complications and open conversion during laparoscopic nephrectomy at our institutions.

Materials And Methods: We retrospectively analyzed all laparoscopic nephrectomies performed between August 1, 1999 and July 31, 2001. Data were stratified for nephrectomy type, intraoperative and postoperative complications.

Manual specimen retrieval without a pneumoperitoneum preserving device for laparoscopic live donor nephrectomy.

Purpose: We present a novel method of kidney retrieval based on a modified Pfannenstiel incision and insertion of the assistant hand into the abdominal cavity without a device for pneumoperitoneum preservation. This maneuver is performed as the last step in pure laparoscopic live donor nephrectomy. Also, we assessed the effect of this technique on warm ischemia time compared with the standard laparoscopic bag retrieval technique.

Training postgraduate urologists in laparoscopic surgery: the current challenge.

Purpose: We established a new mini-fellowship training model for teaching laparoscopic urological surgery to practicing urologists that provides a learning experience beyond that of a pelvic trainer or hands-on, animal laboratory based laparoscopic course. It provides the practitioner with clinical experience under mentor direct guidance and supervision before embarking on independent laparoscopic surgery at an individual hospital.

Materials And Methods: A mini-fellowship model was developed that consists of 3 phases, namely 1) completing a 2 to 3-day hands-on course in laparoscopy, including pelvic trainers and an animal model, 2) observing a clinical mentor perform 6 or more major renal laparoscopic cases and 3) performing 6 or more major renal procedures under mentor direct guidance in trainee patients at the mentor or trainee hospital after obtaining appropriate temporary privileges.