Patent ID: 8532772

Claim:
A method of post-processing of sensing data generated by and stored within an implantable medical device, comprising: receiving the sensing data from the implantable medical device with an external access device, wherein the sensing data includes sensed atrial events and sensed ventricular events; determining, with the external access device, in response to the received data, instances where the implantable medical device identified a cardiac event being detected in response to the sensing data; and determining, with the external access device, in response to the received sensing data, which one of the atria or the ventricles of a heart associated with the sensing data initiated conduction of the heart by at least determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart, wherein determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart comprises: identifying a spatial reference point within a portion of the received sensing data comprising sensed atrial and ventricular events from a plurality of cardiac cycles, wherein the spatial reference point is an identified cardiac interval within the received sensing data; generating a window around the spatial reference point, the window comprising a subset of the sensed ventricular events, in response to the spatial reference point, wherein the subset of the sensed ventricular events comprises a plurality of the sensed ventricular events; determining numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events; and determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart based on the numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events.