Robotic computer-assisted pyeloplasty versus conventional laparoscopic pyeloplasty.

Background And Purpose: Laparoscopic pyeloplasty (LP) for the repair of ureteropelvic junction (UPJ) obstruction provides results similar to those of open pyeloplasty with less morbidity, but its use has been limited, as it requires advanced laparoscopic skills. Robotic computer-assisted pyeloplasty (RAP) has the potential to reduce the technical challenges of the reconstructive portion of the operation. We compare our RAP experience with our recent LP cases.

Is there an indication for frozen section examination of the ureteral margins during cystectomy for transitional cell carcinoma of the bladder?

Purpose: We evaluated the incidence of pathological findings of the ureter at cystectomy for transitional cell carcinoma of the bladder and assessed the usefulness of intraoperative frozen section examination of the ureter.

Materials And Methods: Histopathological findings of ureteral frozen section examination were compared to the corresponding permanent sections and the diagnostic accuracy of frozen section examination was evaluated. These segments were then compared to the more proximal ureteral segments resected at the level where they cross over the common iliac arteries.

Multi-institutional validation study of neural networks to predict duration of stay after laparoscopic radical/simple or partial nephrectomy.

Purpose: We developed models to predict post-laparoscopic radical or simple nephrectomy (LapNx) and post-laparoscopic partial nephrectomy (LapPNx) hospital duration of stay (DOS).

Materials And Methods: We performed a retrospective review (design group) of all 726 patients (July 1997 to April 2004) who underwent LapNx or LapPNx at the Cleveland Clinic Foundation (CCF). Preoperative findings were recorded.

Laparoscopic partial nephrectomy.

Background And Purpose: The technique of laparoscopic partial nephrectomy has matured significantly over the past decade and is emerging as an oncologically sound procedure for the management of small renal tumors. Methods of tumor excision as well as parenchymal reconstruction in a hemostatically controlled field have evolved to make this procedure safer. Improved techniques to minimize warm renal ischemia are being developed.