Granule cell dispersion is not a predictor of surgical outcome in temporal lobe epilepsy with mesial temporal sclerosis

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2013-01-01
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Costa Neves, Rafael Scarpa da [UNIFESP]
Jardim, Anaclara Prada [UNIFESP]
Caboclo, Luis Otavio [UNIFESP]
Lancellotti, Carmen
Marinho, Taissa Ferrari [UNIFESP]
Hamad, Ana Paula [UNIFESP]
Marinho, Murilo [UNIFESP]
Centeno, Ricardo [UNIFESP]
Cavalheiro, Esper Abrao [UNIFESP]
Scorza, Carla Alessandra [UNIFESP]
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The aim of this retrospective study of a series of patients with mesial temporal lobe epilepsy (MTLE) and mesial temporal sclerosis (MTS) was to analyze the association of granule cell dispersion (GCD) with surgical prognosis, patterns of MTS and clinical data. Hippocampal specimens from 66 patients with MTLE and unilateral MTS and from 13 controls were studied. Quantitative neuropathological evaluation was performed on NeuN-stained hippocampal sections. Patients' clinical data, types of MTS and surgical outcome were reviewed. GCD occurred in 45.5% of cases and was not correlated with clinical variable. More severe neuronal loss was observed in patients with GCD. Except for MTS Type 2 observed only in four no-GCD patients groups did not differ with respect to the types of MTS. Surgical outcome was similar in both groups. in conclusion, GCD was associated with the degree of hippocampal cell loss, but was not a predictor of surgical outcome.
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Clinical Neuropathology. Deisenhofen-muenchen: Dustri-verlag Dr Karl Feistle, v. 32, n. 1, p. 24-30, 2013.
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