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Epilepsy Surgery for Children With Tuberous Sclerosis Complex

Division of Pediatric Neurosurgery, New York University Medical Center, New York, NY, howard.weiner{at}med.nyu.edu, Department of Neurosurgery, New York University Medical Center, New York, NY, Department of Pediatrics, New York University Medical Center, New York, NY, Comprehensive Epilepsy Center, New York University Medical Center, New York, NY

Nina Ferraris, BA

Comprehensive Epilepsy Center, New York University Medical Center, New York, NY

Josiane LaJoie, MD

Department of Neurology, New York University Medical Center, New York, NY, Department of Pediatrics, New York University Medical Center, New York, NY, Comprehensive Epilepsy Center, New York University Medical Center, New York, NY

Daniel Miles, MD

Department of Neurology, New York University Medical Center, New York, NY, Department of Pediatrics, New York University Medical Center, New York, NY, Comprehensive Epilepsy Center, New York University Medical Center, New York, NY

Orrin Devinsky, MD

Department of Neurosurgery, New York University Medical Center, New York, NY, Department of Neurology, New York University Medical Center, New York, NY, Comprehensive Epilepsy Center, New York University Medical Center, New York, NY

Tuberous sclerosis complex is associated with medically refractory seizures and developmental delay in children. These epilepsies are often resistant to antiepileptic drugs, can be quite severe, and usually have a negative impact on the child's neurologic and cognitive development. It is believed that functional outcome is improved if seizures can be controlled at an early age. The surgical treatment of intractable epilepsy in children and adults with tuberous sclerosis complex has gained significant interest in recent years. Previously published studies have shown a potential benefit from resection of single tubers, with most of the results noted in relatively older children. All of these reports support the idea that if a single primary epileptogenic tuber or region can be identified, then a surgical approach is appropriate. However, most children with tuberous sclerosis complex have multiple potentially epileptogenic tubers, rendering localization challenging, and they are therefore rejected as possible surgical candidates. We have used a novel surgical approach using invasive intracranial monitoring, which is typically multistaged and bilateral. This multistage surgical approach has been useful in identifying both primary and secondary epileptogenic zones in patients with tuberous sclerosis complex with multiple tubers. Multiple or bilateral seizure foci are not necessarily a contraindication to surgery in selected patients. Long-term follow-up will determine whether this approach has durable effects. We await better methods for identifying the epileptogenic zone, both noninvasive and invasive. (J Child Neurol 2004; 19:687-689).

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