Treatment of temporal lobe epilepsy

Area of Science:

• Neurology
• Neurosurgery

Background:

• Temporal lobe epilepsy (TLE) is a common neurological disorder.
• Antiepileptic drugs (AEDs) control seizures in approximately 50% of TLE patients.
• Drug-resistant epilepsy necessitates evaluation for alternative treatments, such as resective surgery.

Purpose of the Study:

• To review the diagnostic evaluation process for patients with TLE considered for resective surgery.
• To discuss surgical techniques, associated risks, and post-operative outcomes.

Main Methods:

• Review of diagnostic techniques including electroencephalography (EEG), neuroimaging, intracranial electrode recordings, intracarotid amobarbital perfusion test (IAPT), and positron emission tomography (PET).
• Correlation of pre-surgical evaluation findings with post-surgical seizure control.
• Review of various temporal lobe resection surgical techniques.

Main Results:

• Successful surgical intervention depends on accurate localization of the seizure onset zone.
• Careful pre-surgical evaluation minimizes the risk of new neurological deficits.
• Surgical risks, particularly concerning memory function, must be weighed against potential seizure reduction.

Conclusions:

• Resective surgery is a viable option for drug-refractory temporal lobe epilepsy.
• Comprehensive pre-surgical evaluation is critical for patient selection and surgical planning.
• Surgery can lead to significant seizure reduction and improved quality of life in carefully selected patients.