Related Experiment Videos
Presentation and management of hydromyelia in children with Chiari type-II malformation
F La Marca1, M Herman, J A Grant
1Division of Pediatric Neurosurgery, Children's Memorial Hospital, Northwestern University Medical School, Chicago, Ill., USA.
Insights
Hydromyelia, a spinal cord condition, is common in myelomeningocele and Chiari-II malformation patients. This study proposes an effective treatment algorithm for symptomatic hydromyelia based on clinical and radiological findings.
Area of Science:
- Neurology
- Neurosurgery
- Pediatric Medicine
Background:
- Hydromyelia is frequently observed in patients with myelomeningocele and Chiari-II malformation.
- Symptomatic hydromyelia requiring intervention occurs in a subset of these patients.
- Treatment is complicated by associated congenital malformations.
Purpose of the Study:
- To analyze the incidence and treatment outcomes of hydromyelia in myelomeningocele patients with neurological deterioration.
- To develop an optimal treatment algorithm for hydromyelia associated with Chiari-II malformation and myelomeningocele.
Main Methods:
- Retrospective analysis of 231 MRI studies in spina bifida patients with neurological decline.
- Categorization of hydromyelia into holocord and segmental lesions.
- Classification of symptoms into Chiari-II malformation, tethered cord syndrome, or mixed types.
- Treatment selection based on symptom presentation and lesion extent (decompression, tethered cord release, shunt insertion).
Main Results:
- Hydromyelia was present in 48.5% of analyzed patients.
- Forty-five children with severe hydromyelia required treatment.
- Successful treatment patterns were identified for different clinical and radiological presentations.
Conclusions:
- A structured approach to treating hydromyelia in myelomeningocele and Chiari-II malformation patients is feasible.
- The proposed algorithm guides optimal management based on specific patient profiles.
- This strategy aims to improve outcomes for children with complex spinal malformations.
Abstract:
Hydromyelia in patients with myelomeningocele and Chiari-II malformation is a relatively frequent finding on MRI studies. However, not all children develop symptoms from the hydromyelia that requires treatment. Furthermore, treatment of hydromyelia in spina bifida patients is rather complex due to the associated malformations. The authors retrospectively analyzed 231 MRI studies carried out on spina bifida patients who presented neurological deterioration. Hydromyelia was found in 48.5% of the patients. Forty-five children with severe hydromyelia required treatment. These patients were first divided into 2 groups: those with holocord hydromyelia, and those with a segmental lesion. Fifteen patients presented symptoms characteristic of symptomatic Chiari-II malformation: neck rigidity; swallowing difficulty; pain in the upper extremeties; weakness or spasticity in the upper extremeties. Eighteen patients presented symptoms typical of the tethered cord syndrome: scoliosis; worsening bladder and/or bowel function; pain in the lower extremeties; weakness or spasticity in the lower extremeties. Twelve patients presented a mixed-type symptomatology. These patients subsequently underwent posterior cervical decompression, tethered cord release or insertion of a hydromyelia-pleural shunt according to the type of presenting symptoms and to the extent of the hydromyelic lesion. A pattern of successful treatment was identified for each type of presenting clinical and radiological picture. This has allowed the authors to determine an algorithm for optimal treatment of hydromyelia associated with Chiari-II malformation and myelomeningocele, which is proposed here.