• Neurosurgery · Apr 2012

    Epilepsy surgery of the cingulate gyrus and the frontomesial cortex.

    • Marec von Lehe, Jan Wagner, Joerg Wellmer, Hans Clusmann, and Thomas Kral.
    • Department of Neurosurgery, University Hospital Bonn, Bonn, Germany. Marec.von_Lehe@ukb.unibonn.de
    • Neurosurgery. 2012 Apr 1;70(4):900-10; discussion 910.

    BackgroundEpilepsy surgery involving the cingulate gyrus has been mostly presented as case reports, and larger series with long-term follow-up are not published yet.ObjectiveTo report our experience with focal epilepsy arising from the cingulate gyrus and surrounding structures and its surgical treatment.MethodsTwenty-two patients (mean age, 36; range, 12-63) with a mean seizure history of 23 years (range, 2-52) were retrospectively analyzed. We report presurgical diagnostics, surgical strategy, and postoperative follow-up concerning functional morbidity and seizures (mean follow-up, 86 months; range, 25-174).ResultsNineteen patients showed potential epileptogenic lesions on preoperative magnetic resonance imaging (MRI). All patients had noninvasive presurgical workup; 15 (68%) underwent invasive Video-electroencephalogram (EEG)-Monitoring. In 12 patients we performed extended lesionectomy according to MRI; an extension with regard to EEG results was done in 6 patients. In 4 patients, the resection was incomplete because of the involvement of eloquent areas according to functional mapping results. Eight pure cingulate resections (36%, 3 in the posterior cingulate gyrus) and 14 extended supracingular frontal resections were performed. Nine patients experienced temporary postoperative supplementary motor area syndrome after resection in the superior frontal gyrus. Two patients retained a persistent mild hand or leg paresis, respectively. Postoperatively, 62% of patients were seizure-free (International League Against Epilepsy [ILAE] 1), and 76% had a satisfactory seizure outcome (ILAE 1-3).ConclusionEpilepsy surgery for lesions involving the cingulate gyrus represents a small fraction of all epilepsy surgery cases, with good seizure outcome and low rates of postoperative permanent deficits. In case of extended supracingular resection, supplementary motor area syndrome should be considered.

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