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Urodynamic evaluation in children with lipomeningocele: timing for neurosurgery, spinal cord tethering and followup
C Rendeli1, E Ausili, F Tabacco
1Department of Paediatric Science, Institute of Neurosurgery, Catholic University Medical School, Policlinico A. Gemelli, Largo Gemelli 8, 00168 Rome, Italy. c.rendeli@libero.it
Insights
Early surgery for lipomeningocele improves bladder function. Urodynamic testing helps determine optimal surgical timing and monitor bladder development in pediatric patients.
Area of Science:
- Pediatric Urology
- Neuroscience
- Surgical Innovation
Background:
- Lipomeningocele is a complex congenital condition affecting the spinal cord and can lead to significant bladder dysfunction.
- Management requires careful consideration of surgical timing and ongoing monitoring of urinary tract development.
- Urodynamic testing is a key diagnostic tool in assessing lower urinary tract function.
Purpose of the Study:
- To evaluate the utility of urodynamic testing in guiding surgical timing for lipomeningocele.
- To assess the impact of surgical timing on the development of bladder function in children with lipomeningocele.
- To identify predictors for improved bladder outcomes post-surgery.
Main Methods:
- Retrospective analysis of 64 pediatric patients with lipomeningocele, categorized by age at surgery (infants, toddlers, older children).
- All patients underwent pre-operative and serial follow-up urodynamic testing over a mean of 6.5 years.
- Surgical timing was correlated with urodynamic parameters and functional outcomes.
Main Results:
- Patients undergoing surgery within the first year of life demonstrated significantly greater improvements in bladder capacity and detrusor leak pressure.
- Early surgical intervention was associated with a higher percentage of patients showing improved urodynamic parameters at follow-up.
- Age at surgery was a critical factor influencing the development of bladder function.
Conclusions:
- Urodynamic evaluation is essential for optimizing surgical timing in lipomeningocele patients.
- Early surgical repair appears to mitigate the risk of lower urinary tract neurological deterioration.
- Timely intervention supports more physiological development of urinary function in children with lipomeningocele.
Purpose:
We assessed the usefulness of urodynamic testing for determining the optimal timing of surgery and for evaluating the development of bladder function in children with lipomeningocele.
Materials And Methods:
We retrospectively evaluated 64 patients (40 females) 3 to 17 years old (mean 8.5) with lipomeningocele. Patients were divided into 3 groups based on age at surgery, ie younger than 12 months (34 patients), 12 to 36 months (17) and older than 36 months (13). All patients underwent urodynamic testing preoperatively and during extended followup (mean 6.5 years, range 3 to 12).
Results:
Bladder capacity and mean detrusor leak pressure improved in all groups but particularly in patients operated on within the first year of life. At the end of the study mean bladder capacity was 420 cc in patients younger than 12 months, 300 cc in those 12 to 36 months old and 260 cc in those older than 36 months (p <0.01), and mean detrusor leak pressure was 37, 54 and 55 cm H(2)O, respectively (p <0.01). At the latest followup 65% of patients in the youngest group had improved urodynamic parameters vs 33% of those 12 to 36 months old and 28% of those older than 36 months.
Conclusions:
Urodynamic evaluation and the presence of neurological impairment have crucial roles in determining the optimal timing of surgery in patients with lipomeningocele, and in diagnosing the onset of tethered cord. Our data show that early surgical repair seems to reduce the risk of neurological deterioration of the lower urinary tract, and allows a more physiological development of urinary function.
