Admittance to detect alterations in left ventricular stroke volume

Implantable cardioverter-defibrillators monitor intracardiac electrocardiograms (EGMs) to discriminate between ventricular and supraventricular tachycardias. The incidence of inappropriate shocks remains high because of misclassification of the tachycardia in an otherwise hemodynamically stable individual. Coupling EGMs with an assessment of left ventricular (LV) stroke volume (SV) could help in gauging hemodynamics during an arrhythmia and reducing inappropriate shocks.

Source: Heart Rhythm - June 27, 2014 Category: Cardiology Authors: Erik R. Larson, John E. Porterfield, Sandeep Sagar, Juan Marmol-Velez, Manoj Panday, Daniel Escobedo, Joel Michalek, Yongjian Ouyang, Jonathan W. Valvano, John A. Pearce, Marc D. Feldman Source Type: research