Patent ID: 8391964
Filing Date: 2013-03-05
Classification: A61B,A61N

Abstract:
1. An implantable medical device (IMD) comprising: a sensing module configured to acquire cardiac electrical signals corresponding to cardiac activity of a heart of a patient via at least one sensor; and a processor configured to obtain the cardiac electrical signals corresponding to cardiac activity of the heart of the patient, periodically analyze, at a first frequency, a most recent cardiac electrical signal of the obtained cardiac electrical signals to monitor for an electrical conduction abnormality of the heart, compute at least a heart rate parameter of the patient and a number of premature ventricular contractions (PVCs) using the acquired cardiac electrical signals, compare the heart rate parameter of the patient to a heart rate parameter threshold, compare the number of PVCs to a PVC threshold, and increase the frequency at which the most recent electrical signal is analyzed to a second frequency when the heart rate parameter of the patient is greater than the heart rate parameter threshold and the number of PVCs detected is greater than the PVC threshold, wherein the first frequency and the second frequency are greater than zero.