Patent ID: 8055339
Filing Date: 2011-11-08
Classification: A61N

Abstract:
1. A device comprising: at least one implantable cardiac contraction sensing circuit configured for providing a sensed contraction signal from an atrium and a sensed contraction signal from a ventricle; a timer circuit configured for providing a time duration of an atrial-atrial (A-A) interval between successive atrial contractions, a ventricular-ventricular (V-V) interval between successive ventricular contractions, and an atrial-ventricular (A-V) interval between an atrial contraction and a same cardiac cycle ventricular contraction; an electrical stimulation circuit configured to provide pacing electrical stimulation energy to at least one implantable electrode in the atrium and at least one implantable electrode in the ventricle; and a controller communicatively coupled to the cardiac contraction sensing circuit, the timer circuit, and the electrical stimulation circuit, wherein the controller includes: an event detection module configured for determining whether atrial-ventricular (A-V) block events are sustained over multiple cardiac cycles; and a pacing module configured for: