Patent ID: 8774918

Claim:
A method comprising: determining whether a therapy module is delivering electrical stimulation to a tissue site within a patient; monitoring cardiac function of a heart of a patient according to a first sense mode in response to determining the therapy module is delivering electrical stimulation to the tissue site; monitoring cardiac function of the heart of the patient according to a second sense mode in response to determining the therapy module is not delivering electrical stimulation to the tissue site detecting a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode; in response to detecting the potential arrhythmia, stopping the monitoring of cardiac function according to the first sense mode and monitoring cardiac function of the heart of the patient according to the second sense mode, wherein the first and second sense modes comprise at least one different sensing parameter; and determining whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode.