Laparoscopy-assisted ureterostomy- technique

Urinary tract anomalies in children at times pose challenges in which immediate urinary diversion is required before definitive reconstruction. Open cutaneous ureterostomy technique is a well-established approach for this scenario. We describe the laparoscopy-assisted alternative.

Transperitoneal laparoscopy is performed with three ports. One trans-umbilical 5mm port for vision and two 3mm working instruments, one of which is through the proposed ureterostomy site minimising scarring. The position of the third port is carefully checked both externally and internally. Laparoscopic identification of the dilated ureter is quick and easy. The redundant ureter is mobilised and excess excised if needed. The ureteric loop is then exteriorised and the ureterostomy fashioned externally. Proximal and distal patency is checked both externally and laparoscopically.

Nineteen patients underwent the procedure for primary VUR (n=6), neuropathic bladder 7, posterior urethral valve 4, and vesico-ureteric obstruction 2. The mean operative time was 40 minutes. the patients received three doses of perioperative antibiotics and were discharged in 72 hours (mean). At three months, clinical and ultrasound review have shown satisfactory and stable upper tracts and no episodes of UTI.

The laparoscopic view gives the benefit of direct visualisation and identification with adequate dissection in order to bring the ureter to the surface in a tensionless manner. A redundant ureter can be easily addressed to correct tortuosity or redundancy appropriately. Bladder drainage can be ensured with careful dissection of the distal ureter and inspection at the end of the procedure.

Laparoscopy-Assisted ureterostomy formation is easy and quick to perform. It is feasible even in the smallest of babies, assures the shortest segment of ureter to the bladder providing prompt drainage in a refluxing ureterostomy setting. Our early experience is promising with potential benefits.