title: [Long-term electroencephalography follow-up of patients with selective amygdaloid-hippocampectomy].
abstract: The EEGs of 149 patients with drug-resistant psychomotor epilepsy were analysed before and after amygdalohippocampectomy. The extent of the pre- and postoperative EEG abnormalities was compared. In particular we were interested whether there is a difference in patients with a structural lesion compared to those with no structural lesion, and if so, in which EEG-parameters the difference lies (background activity, homo- and contralateral focal slowing, homo- and contralateral epileptogenic focus, generalized epileptiform abnormalities). Furthermore we studied whether the postoperative clinical outcome correlates with the pre- and postoperative EEG-parameters. In patients with a structural lesion the homolateral focal slowing is preoperatively more pronounced than in patients with no structural lesion. In patients with no structural lesion all other preoperative EEG-parameters are more pathological. The preoperative EEG-parameters are only of limited predictive value for the clinical outcome. The amount of the improvement of postoperative EEG-parameters correlates well with the clinical outcome.
authors.affiliation: EEG-Abteilung der Neurologischen Universitätsklinik Zürich.
authors.forename: A M
authors.initials: AM
authors.lastname: Siegel
authors.forename: H G
authors.initials: HG
authors.lastname: Wieser
mesh_terms: D000328:Adult; D000679:Amygdala / Q000503:physiopathology / Q000601:surgery*; D001932:Brain Neoplasms / Q000601:surgery; D004292:Dominance, Cerebral / Q000502:physiology; D004569:Electroencephalography; D004833:Epilepsy, Temporal Lobe / Q000503:physiopathology / Q000601:surgery*; D005071:Evoked Potentials; D005260:Female; D005500:Follow-Up Studies; D006624:Hippocampus / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000503:physiopathology*
vernacular_title: Elektroenzephalographische Langzeit-Verläufe bei Patienten mit selektiver Amygdala-Hippokampektomie.