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UPDATED: Sun, 11/11/2007 - 3:51pm

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VNS Surgery

If you (or your loved one) have had a vagus nerve stimulator implanted, what happened after it?

no more seizures
5% (11 votes)
helped control seizures a lot
34% (76 votes)
helped a little bit
35% (78 votes)
didn’t help at all
17% (37 votes)
worse off
10% (22 votes)
Total votes: 224

View results
View past poll results

Seizures In Newborns

A parent's story: "Jane was 2 days old and was on a respirator in the neonatal intensive care unit. I was so afraid she wouldn't live, or if she did, that there would be permanent brain damage. Then they told me that she was having seizures and needed to be treated with phenobarbital. It was all very frightening, but Janey is now 2 years old, has been off phenobarbital since the age of 6 months, and has not had any seizures since leaving the hospital at 2 weeks of age."

Seizures in newborns (babies in the first month of life) are different from seizures that occur in older children and adults. The seizures often are fragmentary because the infant's brain is still developing and is unable to make the coordinated responses characteristic of a generalized tonic-clonic seizure. The baby may have jerking or stiffening of a leg or an arm that can alternate from side to side, or the whole upper body may suddenly jerk forward, or both legs may jerk up toward the belly with the knees bent. The baby's facial expression, breathing, and heart rate may change. Impairment of responsiveness, which is critical in defining many types of seizures in children and adults, is difficult to assess in newborns. Parents may suspect that responsiveness is impaired when their voices are unable to attract the newborn's attention.

Even experts have difficulty in recognizing seizures in newborns. Normal babies have many sudden, brief jerks, grimaces, stares, and mouth movements that might suggest epilepsy in an older child or adult. A diagnosis of epilepsy in an infant is more likely if

  • the behavioral changes are not typical of children of the same age (some parents videotape the suspected behavior at home for viewing by the doctor)
  • repeated episodes are identical in their behavioral features and duration
  • the episodes occur while the child is both awake and asleep
  • the episodes are not brought on by changes in posture or activity, or can not be stopped by gentle manipulation of the arm or leg

 

The Moro reflex in babies is a perfectly normal response that can be easily mistaken for a seizure. When a baby is startled, such as by momentary removal of support of its head, a loud noise, or a bright light, it suddenly will stiffen its back, its arms and legs will extend outward from the body, and its fingers will fan out. The Moro reflex is present in its full form until age 3 months, and in a incomplete form until age 5 months.

Another example of normal behavior in infants that may be confused with seizures is jitters. Jitters are shivering movements or tremors and are not epileptic seizures. They are similar to the shivering that occurs with fever in older children and adults.

The electroencephalogram (EEG), which is usually so helpful in defining seizures, is more difficult to interpret in newborns. Although the normal and abnormal patterns of brain electrical activity in newborns are becoming more clearly defined, areas of uncertainty still exist, and only specially trained pediatric neurologists can expertly interpret newborn EEG patterns.

Newborns with a rare genetic disorder, benign familial neonatal convulsions, begin having frequent brief seizures in the first few days of life. The disorder usually is inherited by an autosomal dominant gene (that is, one parent also had the disorder) but it may also result from a spontaneous mutation in the child's DNA. The seizures usually stop by 6 to 9 months of age.

Topic Editor:James W. Wheless, M.D.
Last Reviewed:10/5/06



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Information For Families

Did you know?

Children with epilepsy have a higher rate of learning disorders than the general public. However, most children with epilepsy don't have learning problems.

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