Detrusor instability: a delayed complication in association with the artificial sphincter

Area of Science:

• Pediatric Urology
• Neurosurgery
• Reconstructive Surgery

Background:

• Artificial urinary sphincter (AUS) implantation is a surgical procedure used to treat urinary incontinence.
• Complications following AUS implantation can arise, necessitating further investigation and management.
• Understanding the factors contributing to these complications is vital for improving patient outcomes.

Purpose of the Study:

• To investigate the incidence and causes of detrusor dysfunction after artificial sphincter implantation in children.
• To identify risk factors associated with postoperative bladder complications.
• To propose recommendations for improved patient selection and long-term surveillance.

Main Methods:

• Retrospective analysis of 45 children who underwent artificial sphincter implantation.
• Evaluation of urodynamic parameters, including detrusor filling pressure and bladder contractility.
• Review of associated conditions such as myelodysplasia and spinal cord tethering.

Main Results:

• Six out of 45 children (13.3%) experienced elevated detrusor filling pressure and/or uninhibited bladder contractions post-surgery.
• Three children developed hydronephrosis, and three experienced persistent urinary incontinence.
• Myelodysplasia was present in all affected children; spinal cord tethering was noted in three, and three may have had masked detrusor hypertonicity.

Conclusions:

• Post-artificial sphincter implantation detrusor dysfunction is a significant concern, especially in children with myelodysplasia.
• Prompt identification and management of complications like hydronephrosis and incontinence are essential.
• Enhanced preoperative evaluation and postoperative monitoring strategies are recommended to optimize outcomes in this patient population.