Patent ID: 7894883

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 verifying, with the external access device, in response to the received data, whether the determined instances should have been identified by the implantable medical device as the cardiac event being detected, wherein verifying whether the determined instances should have been identified by the implantable medical device as the cardiac event being detected comprises classifying, with the external access device the cardiac event as one of ventricular tachycardia, ventricular fibrillation, supraventricular tachycardia, or unknown, wherein classifying the cardiac event is based on one or more of: determining, with the external access device, whether the sensed atrial events were both spontaneous and regular; determining, with the external access device, a ratio of sensed atrial events to sensed ventricular events in response to determining that the sensed atrial events were both spontaneous and regular; determining, with the external access device, whether the sensed atrial events are evenly distributed with the sensed ventricular events in response to determining that the ratio of sensed atrial events to sensed ventricular events is 1:1, wherein determining whether the sensed atrial events are evenly distributed with the sensed ventricular events comprises determining whether there is only one sensed atrial event located between each adjacent pair of sensed ventricular events; determining, with the external access device, whether there was an abrupt onset of the cardiac event in response to determining that the sensed atrial events were not evenly distributed with the sensed ventricular events; determining, with the external access device, whether one of the sensed ventricular events or the sensed atrial events initiated conduction of a heart associated with the sensing data during the cardiac event in response to determining that there was an abrupt onset of the cardiac event; comparing, with the external access device, morphologies of intervals within the cardiac event in response to determining that the ratio of sensed atrial events to sensed ventricular events is not 1:1.