Device based cardiac monitoring and stress test

摘要

A medical device and associated method establish an occurrence of a premature atrial contraction. The device senses a ventricular signal. A control unit is configured to determine a metric of the ventricular signal during an interval following the premature atrial contraction and detect a change in cardiac stress tolerance in response to the determined metric.

主权项

1. A method for detecting change in cardiac stress tolerance in a medical device, comprising:
establishing an occurrence of a premature atrial contraction; sensing a ventricular signal comprising an S-T segment subsequent to the established occurrence; determining a metric of the ventricular signal S-T segment during an interval following the premature atrial contraction; and detecting a change in cardiac stress tolerance in response to the determined metric.