Patent ID: 6895272
Filing Date: 2005-05-17
Classification: A61N

Abstract:
1. A body implantable system, comprising: at least one lead comprising an atrial electrode for sensing and pacing an atrium of a heart; energy delivery circuitry coupled to the at least one lead; a detector, coupled to the at least one lead, that detects high atrial interval rates indicative of atrial arrhythmia; memory configured to define an atrial window having a length and a first satisfaction criterion; and a control circuit coupled to the energy delivery circuitry, detector and memory, the control circuit inhibiting the energy delivery circuitry from delivering pacing signals to the atrium and from delivering atrial arrhythmia therapy in response to detecting the high atrial interval rates, and wherein the detector detects atrial intervals while delivery of the pacing signals to the atrium and the atrial arrhythmia therapy are inhibited, the control circuit classifying the atrial intervals in the atrial window and declaring an atrial episode in response to satisfying the atrial window by evaluating the atrial intervals in the atrial window with respect to the first satisfaction criterion.