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Spina bifida is a birth defect that happens when the neural tube (a layer of cells that develops into the brain and spinal cord) fails to close completely during an embryo’s first few weeks of development. As the bones of the spine and the nerves of the spinal cord continue to develop, the bones do not close completely around the nerves. Part of the spinal cord may stick out through an opening in the bones, causing permanent nerve damage.
Spina bifida is the most common neural tube defect. Between 1,500 and 2,000 babies born in the United States are affected each year. There are an estimated 166,000 people living with spina bifida in the U.S.
There are four types of spina bifida:
Effects of Myelomeningocele
The number and severity of problems in children with myelomeningocele can vary depending on where the sac is located on the spine and how much of the spinal cord is affected. Possible health effects of myelomeningocele include:
Doctors at Riley at IU Health can diagnose spina bifida and myelomeningocele before birth through genetic testing, prenatal ultrasound or blood screenings. Since doctors know in advance that you and your baby will require specialized care during and after delivery, you will begin working with a multidisciplinary care team upon diagnosis to develop a plan for your baby’s birth and treatment.
You may have to deliver the baby by cesarean section (C-section) to reduce the risk of injury. In the delivery room, your baby will be placed in a special bag to lower the risk of infection. From the delivery room, your baby will be moved to the neonatal intensive care unit (NICU) for evaluation. If you deliver your baby at Riley at IU Health, he or she will receive specialized multidisciplinary treatment from the Spina Bifida Program.
A neurosurgeon will examine your baby shortly after birth to evaluate the severity of the defect and develop a treatment plan. Many babies with myelomeningocele have hydrocephalus (a build-up of fluid and pressure in the brain). If this is the case, your baby will have a special drain called a shunt placed to drain the fluid. Not all babies with myelomeningocele will need a shunt.
While in the NICU at Riley at IU Health, all babies with myelomeningocele will also have a urinary catheter inserted to help empty the bladder. Depending on the severity of the defect, this may be temporary or long-term.
A neurosurgeon will perform surgery to correct the defect within the first two days after birth. Along with surgery to repair the spinal defect, your baby may also require additional procedures later on to address orthopedic issues and problems with the bowel or bladder.
Visit the following sites to find out more about how myelomeningocele is diagnosed and treated.
Riley at IU Health offers a broad range of supportive services to make life better for families who choose us for their children's care.
The U.S. National Library of Medicine provides in-depth information about spina bifida.
The Spina Bifida Association provides in-depth information for parents of children with spina bifida.
The Spina Bifida Association of Indiana supports, educates and encourages families and individuals living with spina bifida.
The NINDS provides information about the diagnosis and treatment of the different forms of spina bifida.