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Epilepsy Res. 2005 Mar-Apr;64(1-2):35-44.

Failed surgery for temporal lobe epilepsy: predictors of long-term seizure-free course.

Author information

1
Epilepsy Centre Bethel, Klinik Mara 1, Maraweg 21, Bielefeld 33617, Germany. janszky@index.hu

Abstract

OBJECTIVES:

To identify prognostic factors which predict the outcome 2 years after TLE surgery in those patients who were not seizure-free at the 6-month postoperative examination.

METHODS:

We included 86 postoperative TLE patients who had undergone presurgical evaluation, including video-EEG and high-resolution MRI, and who had seizures between the second and sixth postoperative months.

RESULTS:

32% of patients were seizure-free in the second postoperative year. We found that normal MRI findings and secondarily generalized seizures (SGTCS) preoperatively were associated with a non-seizure-free outcome, while rare postoperative seizures and ipsilateral temporal IED with seizure-free outcome. Newly administered levetiracetam showed a significant positive effect on the postoperative outcome independent of other prognostic factors. Five of seven patients who received levetiracetam became seizure-free (p = 0.006).

CONCLUSION:

One-third of patients who did not become seizure-free immediately after surgery, eventually achieved long-term seizure freedom. We suggest watching for long-term seizure freedom after failed epilepsy surgery especially in patients who had rare postoperative seizures, focal MRI abnormality, ipsilateral temporal spikes, or no SGTCS preoperatively. Levetiracetam may have a positive effect on postsurgical seizures.

[Indexed for MEDLINE]

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