Laparoscopic extravesical ureteral reimplantation for correction of primary and secondary megaureters: Preliminary report of a new simplified technique

Pediatric laparoscopic mitrofanoff procedure- preliminary results of a simplified technique

INTRODUCTION

Laparoscopic appendicovesicostomy (LA) is a rather new technique and still a challenging procedure even for the most experienced surgeons because it requires advanced laparoscopic experience and surgical skill. The aim of this study is to analyze the short-term results and benefits of laparoscopic LA in children.

MATERIALS AND METHODS

Prospective study of children undergoing LA at our institution between January 2018 and October 2021. The procedure was perfomed using a laparoscopic transperitoneal approach. The distal end of the appendix was spatulated and reimplanted in the bladder by a modified Shanfield technique. The proximal end was brought out as the cutaneous umbilical stoma.

RESULTS

Over the study period 15 patients underwent LA (14 males,1 female). Mean age at intervention was 8.8 years (SD:3.1). Indication for surgery was pain during CIC in 13 (86.7%) and difficulty for CIC in 2 (13.3%). Eight patients (53.5%) presented end-stage renal disease (ESRD). Median operative time was 217.3 min (r:140-300). Two patients (13.3%) experienced early postoperative complications: ileus (1) and internal hernia over the mesoappendix with subsequent intestinal obstruction. Mean hospital stay was 6.8 days (SD:1.7). Four patients (26.7%) experienced late postoperative stoma related complications: stomal stenosis (1), granuloma (1) and inability to catheterize (2). With a mean follow-up of 21.46 months (SD: 13) all except the patent who lost the conduit are continent and on CIC every 3 h.

CONCLUSIONS

We suggest that LA by this technique is effective, safe and reproducible, and is associated with good short-term results. The complication rate is similar to the open procedure being intestinal obstruction due to internal hernia probably the most serious.

Surgical management of vesicoureteral junction obstruction (VUJO) in children: A comparative study between transvesicoscopic Cohen reimplantation and transumbilical laparoendoscopic single-site (TU-LESS) Lich-Gregoir techniques

BACKGROUND

There are many reports on the application of minimally invasive technology in the correction of children's VUJO, but there is no report on the treatment of children's VUJO by the TU-LESS Lich-Gregoir method. We aimed to comparatively analyze the therapeutic outcomes of transvesicoscopic ureteral reimplantation Cohen procedure (TUR-C) and TU-LESS surgery Lich-Gregoir procedure (TU-LESS-LG) in pediatric VUJO.

METHODS

The data of 49 children with VUJO admitted from January 2016 to January 2020 were retrospectively analyzed. Based on different surgical methods, they were divided into the TUR-C group (23 cases) and the TU-LESS-LG group (26 cases). The demographic characteristics, perioperative characteristics, postoperative complications, the recovery of renal function, and the improvement of hydronephrosis were compared between the two groups.

RESULTS

There were no statistical differences in demographic characteristics and preoperative data between the two groups. The TU-LESS-LG group was superior to the TUR-C in terms of average operation time and postoperative hospital stay. There was no statistical difference between the two groups in terms of postoperative complications, postoperative recovery of renal function, and improvement of hydronephrosis.

CONCLUSION

The two surgical methods can achieve a similar curative effect in the treatment of VUJO. The TU-LESS-LG has more advantages in operation time, postoperative hospital stays, the wider age selection range of cases, megaureter tapering, and cosmetic incision, but the operation is more difficult.

Laparoscopic extravesical ureteral reimplantation (LEUR) of obstructed megaureters: STEP-BY-STEP video of a simplified approach

INTRODUCTION

In this video we aim to describe step-by-step a simplified surgical technique for the treatment of primary and secondary obstructed megaureters in children by laparoscopic extravesical ureteral reimplantation (LEUR).

MATERIAL AND METHODS

A transperitoneal approach is used in all cases. The distal ureter is dissected and transected at the level of the stenosis. Detrusor fibers are divided to expose bladder mucosa and the distal ureter is introduced into the bladder to create a valve-like mechanism (modified-Shanfield technique).

RESULTS

Between 2016 and 2020, 9 patients underwent LEUR (5 female, 4 male). Mean age at surgery was 31.6 months (SD:22.74) and indications were infection (2), obstruction (3), increase hydronephrosis (2) and decrease in renal differential function (2). The procedure was completed laparoscopically in all cases with a median operative time of 144 min (r: 120-160). The postoperative MAG-3 renogram revealed a non-obstructive pattern in 8/9 patients and MCUG demonstrated absence of VUR in all 8/9. With a mean follow-up of 2.4 years (SD:1.4) all are asymptomatic.

CONCLUSIONS

LEUR by this new simplified technique is a feasible treatment of megaureters associated with good short and long-term results.