Apparatus for preventing atrial fibrillation using precursors

摘要

An implanted pacemaker senses intrinsic atrial events and generates corresponding pacing pulses. The atrial events are also monitored for a precursor of an atrial fibrillation episode. If such a precursor is detected, the pacemaker generates therapy designed to prevent the atrial fibrillation episode. For example, the atrium and/or the ventricle may be overdriven at a pacing rate above the intrinsic rate.