Patent ID: 11896387
Assignee: PACESETTER, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An apparatus, comprising:
sensing circuitry couplable to electrodes and configured to sense an electrocardiogram (ECG) or electrogram (EGM) signal indicative of cardiac electrical activity of a patient's heart; and
at least one processor configured to
determine a measure of short-term variation (STV) and a measure of long-term variation (LTV) in a feature of the ECG or EGM signal over a measurement period that includes a plurality of cardiac cycles; and
detect a potential apnea event in the measurement period based on the measure of STV and the measure of LTV in the feature of the ECG or EGM signal;
wherein the feature comprises one of a morphological feature or a temporal feature.