An implantable cardiac stimulation device provides bipolar pacing and bipolar autocapture. If a measured bipolar electrode configuration capture threshold is too high, an impedance measuring circuit measures the impedance of the bipolar electrode configuration to determine a possible lead failure. If...http://www.google.com/patents/US7308310?utm_source=gb-gplus-sharePatent US7308310 - Implantable cardiac stimulation device providing bipolar autocapture and lead impedance assessment and method
