Clinically distinct electroencephalographic phenotypes of early myoclonus after cardiac arrest.

ABSTRACT:

Objective

We tested the hypothesis that there are readily classifiable electroencephalographic (EEG) phenotypes of early postanoxic multifocal myoclonus (PAMM) that develop after cardiac arrest.

Methods

We studied a cohort of consecutive comatose patients treated after cardiac arrest from January 2012 to February 2015. For patients with clinically evident myoclonus before awakening, 2 expert physicians reviewed and classified all EEG recordings. Major categories included: Pattern 1, suppression-burst background with high-amplitude polyspikes in lockstep with myoclonic jerks; and Pattern 2, continuous background with narrow, vertex spike-wave discharges in lockstep with myoclonic jerks. Other patterns were subcortical myoclonus and unclassifiable. We compared population chara

SUBMITTER: Elmer J 

PROVIDER: S-EPMC4982787 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature