Related Experiment Videos
Long-term benefits of early neurosurgery for lipomyelomeningocele
H Y Wu1, B A Kogan, L S Baskin
1Department of Urology, University of California School of Medicine, San Francisco, USA.
Insights
Early neurosurgery for lipomyelomeningocele preserves bladder function in most patients. While 84% maintain stable results, long-term monitoring is crucial as deterioration can occur years later.
Area of Science:
- Pediatric Neurosurgery
- Urology
- Spinal Cord Malformations
Background:
- Early neurosurgical repair of lipomyelomeningocele (LMMC) is associated with better bladder function.
- The long-term durability of these urological benefits requires further investigation.
Purpose of the Study:
- To evaluate the long-term durability of urological benefits after early neurosurgical repair of LMMC.
- To identify predictors of sustained normal bladder function post-intervention.
Main Methods:
- Retrospective chart review of 43 patients with LMMC who underwent urodynamic testing before and after primary neurosurgical repair.
- Analysis of patients with a minimum of 12 months follow-up (median 68 months).
Main Results:
- 84% (36/43) of patients maintained stable clinical and urodynamic function post-surgery.
- 16% (7/43) experienced late deterioration between 9 months and 8 years postoperatively.
- Preoperative urodynamic status was the primary predictor of long-term normal bladder and sphincter function.
Conclusions:
- Early diagnosis and neurosurgical intervention for LMMC are supported by findings of preserved preoperative function.
- Urological benefits are durable in the majority of cases (84%), but long-term follow-up is essential due to potential late deterioration.
Purpose:
Our previous experience with early neurosurgery for lipomyelomeningocele revealed that patients undergoing repair before age 1.5 years were more likely to have normal bladder function. We evaluate the durability of the urological benefits in patients with lipomyelomeningocele with longer followup.
Materials And Methods:
A retrospective chart review was performed on all patients who underwent urodynamic testing before and after primary neurosurgical repair of lipomyelomeningocele. A total of 43 patients presented between 1983 and 1995 with at least 12 months of followup (median 68, range 15 to 167).
Results:
Of the 43 patients 36 (84%) maintained stable clinical and urodynamic function, and 7 (16%) had late deterioration, which occurred between 9 months and 8 years postoperatively. Of 19 patients with normal urodynamic studies preoperatively 14 (74%) maintained normal function. Overall, 14 of 43 patients (33%) with lipomyelomeningocele had normal bladder and sphincter function during followup. The principal predictor of long-term normal bladder function was preoperative urodynamic status, since urodynamic studies were preoperatively normal in 13 of 14 patients (93%) who maintained normal bladder and sphincter function. Late neurosurgery was equally efficacious if urodynamic studies were normal.
Conclusions:
Our data continue to support early diagnosis and neurosurgical intervention in patients with lipomyelomeningocele, since there is a higher likelihood of normal preoperative function that can be preserved. Furthermore, the results are durable in 84% of cases. However, close followup is necessary, since deterioration can occur up to 8 years postoperatively.