Bilateral hippocampal atrophy in temporal lobe epilepsy: Effect of depressive symptoms and febrile seizures
Open Access
- 26 January 2011
- Vol. 52 (4), 689-697
- https://doi.org/10.1111/j.1528-1167.2010.02928.x
Abstract
Purpose: Neuroimaging studies suggest a history of febrile seizures, and depression, are associated with hippocampal volume reductions in patients with temporal lobe epilepsy (TLE). Methods: We used radial atrophy mapping (RAM), a three‐dimensional (3D) surface modeling tool, to measure hippocampal atrophy in 40 patients with unilateral TLE, with or without a history of febrile seizures and symptoms of depression. Multiple linear regression was used to single out the effects of covariates on local atrophy. Key Findings: Subjects with a history of febrile seizures (n = 15) had atrophy in regions corresponding to the CA1 and CA3 subfields of the hippocampus contralateral to seizure focus (CHC) compared to those without a history of febrile seizures (n = 25). Subjects with Beck Depression Inventory II (BDI‐II) score ≥14 (n = 11) had atrophy in the superoanterior portion of the CHC compared to subjects with BDI‐II <14 (n = 29). Significance: Contralateral hippocampal atrophy in TLE may be related to febrile seizures or depression.Keywords
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