Delayed Hydrocephalus after Repairing Un- rupture Myelomeningocele

Background: Myelomeningocele (MM) is the most common form of spinal dysraphism being the complex congenital malformation of the central nervous system (CNS). Hydrocephalus is one of the main complications with myelomeningocele. Objective: This study aimed to identify the incidence of hydrocephalus developing after repair of un-ruptured myelomeningocele. Patients and Methods: Fourteen patients ten males and four females with un ruptured MM not associated with hydrocephalus who underwent surgical repair for the MM were included in this study. Results: Ten patients (71%) developed post MM repair hydrocephalus and needed CSF diversion, the four patients (29%) who didn t develop hydrocephalus had a MM less than 6 cm in diameter. Conclusion: The incidence of delayed hydrocephalus is high after repairing the myelomeningocele; patients with small myelomeningocele are less liable to develop hydrocephalus.