Efficacy of Magnetic Resonance urography in detecting crossing renal vessels in children with ureteropelvic junction obstruction.

Introduction: An aberrant or accessory crossing renal vessel (CV) leading to the lower pole of the kidney is the most common extrinsic cause of uretero pelvic obstruction(UPJ) obstruction in a child and young adolescent.There is still controversy regarding there functional significance in obstruction Preoperative identification of such vessels may influence surgical management.

Objective: First aim is to determine the value of magnetic resonance (MR) urography in detecting crossing vessels in children with UPJ obstruction,comparing the data with postoperative findings and the second one is to evaluate morphologic and functional parameters in these hydronephrotic kidneys.

Refluxing megaureter for the Mitrofanoff channel using continent extravesical detrusor tunneling procedure.

Purpose: We present a variation on the continent procedure using the refluxing megaureter for the Mitrofanoff channel, and its results.

Materials And Methods: The Mitrofanoff procedure using the refluxing megaureter was performed in 35 patients (valve bladder syndrome 15, neurogenic bladder 10, non-neurogenic bladder 10) between 1995 and 2001. Mean patient age was 5.

Dorsal dartos flap for preventing fistula in the Snodgrass hypospadias repair.

Objective: To evaluate the importance of urethral covering using vascularized dorsal subcutaneous tissue for preventing fistula in the Snodgrass hypospadias repair.

Patients And Methods: The study included 67 children (aged 1-11 years) who had hypospadias repaired between April 1998 and May 2003, including 51 with distal and 16 with midshaft hypospadias. In all children, a standard tubularized incised-plate urethroplasty was followed by reconstruction of new surrounding urethral tissue.

'Pseudospongioplasty' in the repair of a urethral diverticulum.

Objectives: To describe a technique for repairing urethral diverticula which includes neourethral reconstruction and increasing the mechanical support of the neourethra.

Patients And Methods: Between February 1995 and May 2000, 267 patients with proximal hypospadias underwent a one-stage penile skin longitudinal flap urethroplasty. The overall postoperative complication rate was 20%; a diverticulum formed in 24 patients (9%) and in all it was repaired.

Detrusorectomy with rectus muscle hitch and backing.

Purpose: Bladder autoaugmentation is a procedure that includes detrusoromyotomy or detrusorectomy with an aim to release intact urothelium, which then prolapses and increases bladder capacity and compliance. Covering of the prolapsed urothelium usually is done by using deepithelialized pedicled colonic or gastric patch. The authors present their first experiences with detrusorectomy using rectus muscle for hitch and backing.

Bladder autoaugmentation with rectus muscle backing.

Purpose: Bladder autoaugmentation is a procedure which includes detrusoromyotomy or detrusorectomy to release intact urothelium which than prolapses and increases bladder capacity and compliance. The prolapsed urothelium is usually covered with de-epithelialized pedicled colonic or gastric patch. We present our initial experience with bladder autoaugmentation using rectus muscle backing.