Arrythmia

Patent Granted PROBLEM TO BE SOLVED: To discriminate arrythmia with respect to all electrocardiogram waveforms without needs of pre-processing of a large amount of data or learning. ; SOLUTION: In this method, electrocardiogram signals from a plurality of electrodes arranged in the heart are detected (step S1), the mutual information amount of the plurality of detected electrocardiogram signals is calculated (step S2), and it is judged that they are the arrhythmic signals when the calculated mutual information amount is smaller than a prescribed threshold (step S3).