P483: Burst suppression with identical bursts: a distinct pathological EEG pattern in post anoxic coma

Abstract

P484 – Figure 1 Results: Of 179 patients, 34 had bursts suppression with identical bursts. Kappa was 0.8 and disagreement resulted from sampling error. Burstsuppression with identical bursts was always bilateral synchronous, amplitudes were higher and correlation coefficients of burst shapes were higher than in burst-suppression without identical bursts. All patients with identical bursts had a poor outcome. Bifurcation analysis is ongoing. Figure 1. EEG of a comatose patient after cardiac arrest showing “burst-suppression with identical bursts”. Discussion: We confirm that “burst-suppression with identical bursts” is a distinct pathological EEG pattern after diffuse cerebral ischemia. It represents a low dimensional state of which potentially underlying mechanisms are currently explored and will be presented at the conference. Reference: [1] Hofmeijer, Tjepkema-Cloostermans, van Putten. Clin Neurophysiology 2013 (DOI 10.1016/j.clinph.2013.10.017) Poster session 28. Inflammatory diseases of CNS and PNS P484 Epidemiology and potential prognostic factors in Guillain-Barre syndrome: ten years experience of “Policlinico Tor Vergata” G. Mataluni, S. Rossi, C. Rocchi, M. Mangiardi, G.A. Marfia University of Rome “Tor Vergata”, Neuroscience, Roma, Italy Guillain Barre syndrome (GBS) is an acute immune-mediated peripheral