Related Experiment Video
Updated: Aug 6, 2026

Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser
Published on: May 9, 2018
Laser resection of posterior urethral valves
G Stuhldreier1, P Schweizer, H W Hacker
1Department of Paediatric Surgery, University of Tübingen, Germany.
Insights
Laser resection (LR) is a safe and effective treatment for posterior urethral valves in infants. This minimally invasive procedure offers reliable valve ablation with minimal risk, even in newborns.
Area of Science:
- Pediatric Urology
- Minimally Invasive Surgery
- Neonatal Surgery
Background:
- Posterior urethral valves (PUV) are a common congenital anomaly in male infants.
- Early diagnosis and intervention are crucial to prevent long-term renal damage.
- Traditional surgical methods may carry significant risks in neonates.
Purpose of the Study:
- To evaluate the safety and efficacy of laser resection (LR) for posterior urethral valves in infants.
- To assess the suitability of LR as an early intervention for PUV.
- To determine the complication rate associated with LR in neonates and premature infants.
Main Methods:
- Laser resection (LR) performed using thin cystoscopes.
- Application of LR in seven pediatric patients over a two-year period.
- Confirmation of successful ablation through follow-up cystoscopies and micturating cystourethrograms.
Main Results:
- LR was successfully applied in all seven cases without technical difficulties.
- Complete resection of valve tissue and effective obstruction removal were achieved in all patients.
- No complications were observed during or after the procedure.
Conclusions:
- Laser resection (LR) is a safe and reliable method for treating posterior urethral valves in infants.
- The technique is well-suited for premature and newborn infants due to its low-risk profile.
- Early LR provides effective valve ablation and obstruction relief with excellent outcomes.
Abstract:
Laser resection (LR) of posterior urethral valves during infancy as early as possible after diagnosis appears to represent a safe and reliable method. In contrast to other procedures, LR allows valve ablation with thin cystoscopes and carries little risk, even in premature and newborn infants. Its application in seven children in the course of 2 years principally confirmed its suitability for use: it could be applied in all cases without any problems and led to extensive resection of the valve tissue and removal of the obstruction in all patients. The encouraging clinical findings were confirmed by control cystoscopies and micturating cystourethrograms. Complications arising from the method were not observed.
Related Concept Videos
Varicose Veins II: Diagnostic Studies and Interprofessional Care
Urinary Tract Calculi VI: Surgical Management

