corpus callosotomy
Surgical procedure involving division of the corpus callosum to treat severe epilepsy.
Full Definition
Corpus callosotomy is a neurosurgical procedure that involves the surgical division or sectioning of the corpus callosum, the large bundle of nerve fibers that connects the two cerebral hemispheres. This procedure is primarily performed to treat severe, medically refractory epilepsy, particularly drop attacks and generalized tonic-clonic seizures that do not respond to medication. By disconnecting the hemispheres, the surgery prevents seizures from spreading from one side of the brain to the other, though it may result in disconnection syndrome symptoms. The procedure can be performed as a complete or partial callosotomy, depending on the patient's specific seizure pattern and the surgical team's assessment.
Usage
Usage note: Distinguish from other epilepsy surgeries; this specifically targets interhemispheric connections.
In Context
- "The patient underwent corpus callosotomy for refractory drop attacks." — operative report
- "Partial corpus callosotomy successfully reduced generalized seizure frequency." — follow-up note