Patent ID: 8874198
Filing Date: 2014-10-28
Classification: A61B,A61N

Abstract:
1. A non-transitory computer readable storage medium for a computing device having a memory and a microcontroller, the non-transitory computer readable storage medium comprising instructions to: record IEGM signal information prior to intrinsic, induced or simulated premature contractions of the ventricles (PVC); detect heart rate over a period of time prior to the PVC; average heart rate over a period of time prior to the PVC; determine a premature coupling interval of the PVC; determine an average T wave duration over a period of time prior to the PVC, wherein the period of time is an R-R interval and wherein the heart rate is between about 50 bpm to about 160 bpm; calculate a T-wave start time using the formula: calculate a T-wave end time using the formula: where T start and T end are the start and end time from the peak of a QRS; determine the T-wave duration as the time between T determine a morphology of the PVC; compare the premature coupling interval of the PVC, average T wave duration over a period of time prior to the PVC, premature coupling interval of the PVC, average T wave duration over a period of time prior to the PVC, and morphology of the PVC to a template; and determine the likelihood of arrhythmia initiation based on the comparing step.