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[Surgical treatment of epilepsy]
1Neuromedicinsk afdeling, Hvidovre Hospital.
Abstract:
Patients with drug resistant frequent partial seizures rarely remit despite intensive drug treatment. On the contrary, seizures provoke neuronal loss with early mental deterioration and increased mortality. An exact localization of a resectable epileptogenic focus can offer a curative treatment. Mesial temporal sclerosis and lesional cortical partial epilepsy may indicate surgical therapy, both offering freedom of seizures in 50-90% of the patients. Non-lesional cortical partial epilepsy is more problematic, as only 30-40% of the patients will be seizure-free. Volumetric MR investigations, T2 relaxation time measurement and magnetic resonance spectroscopy together with other non-invasive methods have reduced the need for invasive investigations. As the best results are often achieved in children with their greater brain plasticity, surgical therapy should also be considered in children below the age of 12. This will prevent development of their role as chronically ill patients with the known accompanying psychological handicaps.
Insights
Drug-resistant epilepsy often leads to severe outcomes, but precise surgical localization of the seizure focus offers curative potential. Early surgical intervention, especially in children, can prevent long-term disability and improve seizure freedom rates.
Area of Science:
- Neurology
- Neurosurgery
Context:
- Drug-resistant epilepsy presents significant challenges, with frequent partial seizures rarely remitting under medical management.
- Seizures can cause neuronal damage, cognitive decline, and increased mortality, highlighting the need for effective treatments.
- Accurate localization of the epileptogenic zone is crucial for successful surgical intervention.
Purpose:
- To review the efficacy of surgical therapy for drug-resistant partial epilepsy.
- To discuss the diagnostic role of advanced neuroimaging techniques in identifying the seizure focus.
- To emphasize the benefits of early surgical consideration in pediatric epilepsy patients.
Summary:
- Surgical treatment for epilepsy, particularly mesial temporal sclerosis and lesional cortical epilepsy, offers seizure freedom in 50-90% of patients.
- Non-lesional cortical epilepsy has lower success rates (30-40%) but advanced non-invasive methods like volumetric MRI and spectroscopy aid localization.
- Early surgical intervention in children, leveraging brain plasticity, can prevent chronic illness and associated psychological handicaps.
Impact:
- Surgical intervention can provide curative treatment for carefully selected patients with drug-resistant epilepsy.
- Advanced non-invasive investigations reduce the need for invasive diagnostic procedures.
- Considering epilepsy surgery in children under 12 can prevent lifelong disability and improve quality of life.