Feasibility of Using Intracardiac Impedance Measurements for Capture Detection

28 individuals, including 11 patients undergoing replacement or implantation of chronic bipolar pacemakers, 4 patients during electrophysiology studies, 8 volunteers undergoing invasive electrophysiology trials, and 5 patients with implanted pacemakers capable of measuring and telemetering intracardiac impedance signals.

Analysis of high pass filtered intracardiac impedance signals derived from standard bipolar pacing leads to detect pacemaker stimulus capture.

Ability to discriminate between effective and ineffective pacemaker stimuli (capture detection).surrogate