Bezold-Jarisch reflex-mediated asystole during dobutamine stress testing: a case report.

ABSTRACT:

Background

The Bezold-Jarisch reflex (BJR) is a cardioinhibitory parasympathetic response to activation of ventricular mechanoreceptors, which can result in bradycardia, atrioventricular block, or asystole. This phenomenon has been triggered by acute myocardial ischaemia, intra-arterial nitroglycerine use, natriuretic peptides, and with exceptional rarity, in middle-aged women only, by dobutamine infusion during stress echocardiography.

Case summary

We present the case of a 61-year-old woman who suffered a 5.1-s sinus pause during her 20 μg/kg/min infusion of dobutamine. Recovery was immediate following termination of dobutamine infusion. Concurrent echocardiography was normal, and subsequent cardiac catheterization and electrophysiologic study were normal.

Discussion

SUBMITTER: Hossain N 

PROVIDER: S-EPMC7837248 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature