Overview
Low lumbar myelomeningocele is a severe form of neural tube defect characterized by the herniation of spinal cord and meninges through a spinal opening, often leading to significant motor impairment, orthopedic complications, and potential neurological deficits 135.Diagnosis
Clinical Presentation: Presence of a visible or palpable sac on the lower back, associated motor deficits, and potential hydrocephalus 3.
Imaging Studies: MRI and CT scans to assess the extent of spinal cord involvement and associated anomalies 3.
Renal Function Tests: Evaluate for potential kidney complications, including bladder dysfunction and its impact on renal health 45.Management
Surgical Repair: Early surgical closure of the myelomeningocele defect to minimize infection risk and prevent complications like pneumocephalus 3.
Ventriculoperitoneal Shunting: Often required to manage hydrocephalus and reduce intracranial pressure 3.
Vitamin D Replacement: Consider vitamin D supplementation to manage bone health, particularly in monitoring FGF23 levels and optimizing calcium and phosphate metabolism 1.
Bladder Management: Implement clean intermittent catheterization and home monitoring of bladder pressure to prevent urinary tract infections and preserve kidney function 4.Special Populations
Pediatric Considerations: Focus on early intervention for surgical repair and bladder management to mitigate long-term complications 34.
Comorbidities: Regular monitoring of renal function and bone health due to increased risk of osteoporosis and pathologic fractures 15.Key Recommendations
Perform early surgical repair of the myelomeningocele defect to reduce infection risk and prevent complications such as pneumocephalus (Evidence: Strong 3).
Implement ventriculoperitoneal shunting as needed to manage hydrocephalus effectively (Evidence: Strong 3).
Initiate vitamin D replacement therapy to support bone health and monitor FGF23 levels in children with myelomeningocele (Evidence: Moderate 1).
Use clean intermittent catheterization and home monitoring of bladder pressure to manage bladder function and protect kidney health (Evidence: Moderate 4).
Regularly assess renal function and bone health due to heightened risks in this population (Evidence: Expert opinion 5).References
1 Bagińska J, Liszewska A, Korzeniecka-Kozerska A. The role of vitamin D replacement therapy in serum FGF23 concentration in children with myelomeningocele compared with healthy children - a preliminary study. Journal of pediatric endocrinology & metabolism : JPEM 2019. link
2 Antiel RM, Collura CA, Flake AW, Johnson MP, Rintoul NE, Lantos JD et al.. Physician views regarding the benefits and burdens of prenatal surgery for myelomeningocele. Journal of perinatology : official journal of the California Perinatal Association 2017. link
3 Erol FS, Kaplan M. Spontaneous pneumocephalus presenting with apnea attacks in a newborn with open myelomeningocele. Pediatric neurosurgery 2004. link
4 Damaser MS, Brzezinski K, Walter JS, Wheeler JS, Schroeder LS, Hatch DA. Estimating detrusor pressure at home in pediatric patients with myelomeningocele. The Journal of urology 1999. link
5 Vereecken RL. Bladder pressure and kidney function in children with myelomeningocoele: review article. Paraplegia 1992. link