Hemispherectomy. This method of removing brain tissue is restricted to patients with severe epilepsy and abnormal discharges that often extend from one side of the brain to the other. most often are performed on infants or young children.
Hemispherectomy may be "anatomic" or "functional." In an anatomic hemispherectomy, a hemisphere is removed, while in a functional hemispherectomy, some tissue is left in place,
Hemispherectomy is used to treat epilepsy when it cannot be sufficiently controlled by medications.
Hemispherectomy is performed by a neurosurgical team in a hospital. It is also performed by a relatively small number of specialized centers.
Hemispherectomy is a surgical treatment for epilepsy in which one of the two cerebral hemispheres, which together make up the majority of the brain, is removed.
The candidate for hemispherectomy has epilepsy untreatable by medications, with seizure focal points that are numerous or ill defined, but localized to one hemisphere
dr. Ben Carson
Death may occur in 1-2% of patients undergoing hemispherectomy. Serious but treatable complications may occur in 10-20% of patients
Hemorrhage during or after surgery is a risk for hemispherectomy. Disseminated intravascular coagulation, or blood clotting within the circulatory system, is a risk that may be managed with anticoagulant drugs
Brain
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Seizures are eliminated in 70-85% of patients, and reduced by 80% in another 10-20% of patients.
The term is "hemispherectomy" (plural hemispherectomies), meaning the removal or disconnection of a portion of the brain, usually to treat seizures.