The left and right sides of the brain are called hemispheres.
Hemispherectomy is the removal of one side of the brain. This procedure is
sometimes done on children who have severe forms of
epilepsy, such as
Rasmussen syndrome and
Sturge-Weber disease. These conditions badly damage
one side of the brain, cause frequent seizures and problems with physical and
mental development. And these conditions do not respond well to drug treatment.
Hemispherectomy may completely prevent seizures and reverse delays in
development that occur with some forms of epilepsy.
In the previous two articles, we have discussed patients with intractable epilepsy who have benefited from epilepsy surgery to remove or disconnect the area of the brain that propagates their seizures. Another group of people who may benefit from epilepsy surgery is those who have generalized seizures - seizures where there is no clear onset in the brain. These children may also have severe developmental delays, worsened by years of seizures. These children are the ones who can benefit from corpus...
The surgery always causes some loss of movement and sensation on one
side of the body and sometimes causes partial loss of vision in half of the
visual field of each eye. But most children with a large epileptic area on
one side of the brain already have these problems before the surgery.
Primary Medical Reviewer
Susan C. Kim, MD - Pediatrics
Specialist Medical Reviewer
Steven C. Schachter, MD - Neurology
August 26, 2011
WebMD Medical Reference from Healthwise
August 26, 2011
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