Left ventricular geometry and function preceding neurally mediated syncope
Academic Article
Overview
MeSH Major
Echocardiography
Nervous System
Syncope
Ventricular Function, Left
abstract
Reduced ESS, LV volume, and chamber function during initial upright tilt are associated with a subsequent positive tilt response in patients with unexplained syncope. These data suggest that if paradoxic activation of LV mechanoreceptors has a role in mediating neurally mediated syncope, it is not triggered by LV hypercontractility or increased systolic wall stress during the initial period of upright tilt.
