Ureterocystoplasty in pediatric patients with unilateral nonfunctioning kidney

Clinical and urodynamic findings in children and adolescents with neurogenic bladder undergoing augmentation cystoplasty: a systematic review

BACKGROUND

Augmentation cystoplasty (AC) is a procedure to improve the clinical and urodynamic parameters of neurogenic bladder (NB) in children and adolescents refractory to other treatments. We performed a systematic review to investigate these parameters in children and adolescents with NB undergoing AC.

METHODS

We followed PRISMA guidelines and searched electronic databases until March 2024 for studies involving patients aged three to 19 years diagnosed with NB undergoing AC. We assessed clinical and urodynamic parameters before and after surgery, focusing on improvements in urinary incontinence, vesicoureteral reflux (VUR), bladder capacity, compliance, and end filling detrusor pressure (EFP).

RESULTS

A total of 212 NB patients underwent AC and were evaluated for urinary incontinence before and after surgery. Two studies showed a 76.5% to 78.9% improvement in incontinence without bladder outlet procedures (BOP). Another study found no significant difference in incontinence improvement rates between AC with and without BOP. The VUR resolution rate assessed in three studies ranged from 12.5 to 64%. Three studies showed a variation in bladder capacity from 52.8 to 70% of the expected bladder capacity pre-AC to 95.9 to 119%, post-AC. A fourth study showed a variation in bladder capacity from 87 ml pre-AC to 370 ml post-AC. Two studies showed a variation from 3.2 to 4.6 ml/cm H2O pre-AC to 13.7 to 41.3 ml/cm H2O post-AC in bladder compliance. The EFP in three studies varied from 37.2 to 47.6 cm H2O pre-AC to 11 to 17.4 cm H2O post-AC.

CONCLUSION

After AC, urinary incontinence, bladder capacity, EFP, and bladder compliance improved in children and adolescents with NB.

5-Year Long-Term Outcome of Live-Donor Renal Transplant Recipients With Enterocystoplasty and Ureterocystoplasty: An Age- and Sex-Matched Pair Analysis

OBJECTIVE

To assess surgical complications, febrile UTI, graft function and 5-year graft survival after renal transplantation (RT) in patients with augmentation cytsoplasty (AC) and to compare them to RT patients with normal lower urinary tract.

MATERIALS AND METHODS

A case-control study of 34 RT patients with AC including 23 patients with enterocystoplasty (EC) and 11 patients with ureterocystoplasty (UC) was performed. The primary outcome was to determine the difference between both groups regarding postoperative surgical complications and febrile UTI episodes. Graft function was compared at 1, 3, and 5 years and 5-year graft survival was determined. The secondary outcome was to compare them to an age- and gender-matched control group (122 patients) with normal lower urinary tract.

RESULTS

There was no significant difference regarding surgical complications or rates of hospital readmission between AC groups. Seventeen (73.9%) and 5 (45.5%) patients developed 33 and 14 episodes of febrile UTI in EC and UC groups, respectively (P= .5). Control group had shown lower incidence surgical complications (P = .001) and febrile UTIs (P = .02) compared to AC groups. At 3 and 5 years, UC had higher median eGFR than EC (P = .08, 0.008, respectively). The 5-year graft survival was 32 (94.1%) with no statistically significant difference between EC (95.7%) and UC (90.9%) (P = .5) or between AC and control (85.2%, P = .3).

CONCLUSION

Although RT after AC was associated with higher surgical complications and UTI episodes, they had comparable 5-year graft survival to their control. When indicated, UC should be the preferred choice of AC whenever possible.

Advances in paediatric urology

Paediatric urological surgery is often required for managing congenital and acquired disorders of the genitourinary system. In this Series paper, we highlight advances in the surgical management of six paediatric urological disorders. The management of vesicoureteral reflux is evolving, with advocacy ranging from a less interventional assessment and antimicrobial prophylaxis to surgery including endoscopic injection of a bulking agent and minimally invasive ureteric reimplantation. Evidence supports early orchidopexy to improve fertility and reduce malignancy in boys with undescended testes. A variety of surgical techniques have been developed for hypospadias, with excellent outcomes for distal but not proximal hypospadias. Pelvi-ureteric junction obstruction is mostly detected prenatally; indications for surgery have been refined with evidence, and minimally invasive pyeloplasty is now standard. The outlook for patients with neurogenic bladder has been transformed by a combination of clean intermittent catheterisation, algorithms of diagnostic investigations, and innovative medical and surgical therapies. Posterior urethral valves are associated with considerable mortality; fetal diagnosis allows stratification of candidates for intervention, but ongoing bladder dysfunction in patients after valve ablation remains a cause of long-term morbidity.