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  • Title: Long-term seizure outcome in pediatric patients with focal cortical dysplasia undergoing tailored and standard surgical resections.
    Author: Martinez-Lizana E, Fauser S, Brandt A, Schuler E, Wiegand G, Doostkam S, San Antonio-Arce V, Jacobs J, Bast T, Shah M, Zentner J, Schulze-Bonhage A.
    Journal: Seizure; 2018 Nov; 62():66-73. PubMed ID: 30296740.
    Abstract:
    PURPOSE: Focal cortical dysplasia (FCD) is the major cause of focal intractable epilepsy in childhood. Here we analyze the factors influencing the success of surgical treatment in a large cohort of children with histologically ascertained FCD. METHOD: A retrospective study of the effects of FCD type, surgical intervention, and age at surgery in a pediatric cohort. RESULTS: A total of 113 patients (71 male; mean age at surgery 10.3 years; range 0-18) were analyzed; 45 had undergone lesionectomy, 42 lobectomy, 18 multi-lobectomy, and eight hemispherotomy. Complete seizure control (Engel Ia) was achieved in 56% after two years, 52% at five years, and 50% at last follow-up (18-204 months). Resections were more extensive in younger patients (40% of the surgeries affecting more than one lobe in patients aged nine years or younger vs. 22% in patients older than nine years). While resections were more limited in older children, their long-term outcome tended to be superior (42% seizure freedom in patients aged nine years or younger vs. 56% in patients older than nine years). The outcome in FCD I was not significantly inferior to that in FCD II. CONCLUSIONS: Our data confirm the long-term efficacy of surgery in children with FCD and epilepsy. An earlier age at surgery within this cohort did not predict a better long-term outcome, but it involved less-tailored surgical approaches. The data suggest that in patients with an unclear extent of the dysplastic area, later resections may offer advantages in terms of the precision of surgical-resection planning.
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