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[Multiple subpial transection after lesionectomy in an intractable epilepsy case]
No to Shinkei = Brain and Nerve
|March 1, 1993
Summary
This study details a novel surgical approach for intractable epilepsy caused by a right frontal cavernous angioma. Multiple subpial transection (MST) effectively controlled seizures by reducing epileptiform activity post-lesionectomy.
Area of Science:
- Neurosurgery
- Epileptology
- Neurology
Background:
- Intractable epilepsy presents a significant clinical challenge, often requiring surgical intervention.
- Cavernous angiomas are a recognized cause of medically refractory epilepsy.
- Long-term intractable epilepsy necessitates advanced therapeutic strategies.
Observation:
- A 61-year-old male with a 26-year history of intractable epilepsy presented with generalized convulsions.
- Imaging revealed a right frontal cavernous angioma.
- Intraoperative electrocorticography after lesionectomy identified epileptiform potentials in adjacent gyri.
Findings:
- Multiple subpial transection (MST) was performed due to the extensive nature of the lesion and surrounding tissue removal.
- Post-MST, a significant depression of background electrical activity and cessation of spike discharges were observed.
- Seizure control was achieved with phenobarbital monotherapy 1.5 years after surgery.
Implications:
- Multiple subpial transection (MST) can be an effective adjunct to lesionectomy for intractable epilepsy.
- This surgical technique may help manage seizures originating from eloquent or extensive cortical areas.
- Successful seizure control was demonstrated with a minimally invasive approach, improving patient outcomes.