The slow-flat-slow sequence in malignant vasovagal syncope

Ann Pediatr Cardiol. 2021 Jan-Mar;14(1):128-129. doi: 10.4103/apc.APC_105_20. Epub 2020 Nov 19.

Abstract

We present the electroencephalographic and electrocardiographic tracing obtained in an 8-year old boy who experienced malignant vasovagal syncope during the recording. This tracing illustrates the highly specific "slow-flat-slow" sequence described in cases of syncope induced by severe cerebral hypoperfusion.

Keywords: Asystole; convulsive syncope; electroencephalogram; malignant vasovagal syncope.