TECHNIQUES FOR DETERMINING MORPHOLOGICAL STABILITY OF CARDIAC CYCLES

摘要

A medical device, comprising: a memory; and a processing module configured to retrieve electrogram (EGM) data for N cardiac cycles from the memory, wherein N is an integer greater than 1, categorize each of the N cardiac cycles into one of a plurality of categories based on a morphology of the N cardiac cycles, perform comparisons be¬ tween pairs of the N cardiac cycles, each of the comparisons between two cardiac cycles comprising: detecting a mismatch between the two cardiac cycles when the two cardiac cycles are in different categories; and detecting a match between the two cardiac cycles when the two cardiac cycles are in the same category, wherein the processing module is further configured to classify the rhythm of the N cardiac cycles based on a number of detected matches and detected mismatches.