MULTI-PARAMETER ARRHYTHMIA DISCRIMINATION

摘要

An arrhythmia discrimination device and method involves receiving electrocardiogram signals and alternate signals at subcutaneous locations. Both the electrocardiogram signals and alternate signals are used to discriminate between normal sinus rhythm an arrhythmia. An arrhythmia may be detected using electrocardiogram signals, and verified using the alternate signals. A detection window may be initiated in response to receiving the electrocardiogram signal, and used to determine whether the alternate signal is received at a time falling with the detection window. Heart rates may be computed based on both the electrocardiogram signals and alternate signals. The rates may be used to discriminate between normal sinus rhythm and arrhythmia, and used to determining absence of an arrhythmia.