NGF and ventricular tachycardia: Evidence such as the association between infusion of NGF into the LSG and ventricular tachycardia and fibrillation (Verrier and Kawaku, 2004) a nerve sprouting signal from the LSG triggering a generalized increase in cardiac nerve density throughout the heart (Zhou et al. 2004), and the fact the LSG houses the cells that supply the cardiopulmonary system (Pardini et al. 1990).