Patent ID: 6775572
Filing Date: 2004-08-10
Classification: A61N

Abstract:
A method for delivery of anti-tachycardia pacing (ATP) therapy by a cardiac rhythm management device, comprising:generating sense signals representing electrical activity in a heart chamber and detecting a chamber sense when a sense signal exceeds a specified intrinsic detection threshold; detecting a tachycardia in the heart chamber when a rate at which chamber senses are detected exceeds a specified tachycardia threshold value; upon detection of a tachycardia, delivering a burst of one or more pacing pulses in accordance with an anti-tachycardia pacing protocol, where the burst is output after a specified coupling interval with respect to a chamber sense; and, determining if a pacing pulse has captured the heart chamber by detecting whether an evoked response occurs during a capture detection window following the output of a pacing pulse and adjusting an ATP timing parameter accordingly.