What is the term for a PVC that occurs on the T wave or during the vulnerable period of the ventricular refractory period?

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R-on-T PVC refers to a premature ventricular contraction that occurs on the T wave of the preceding cardiac cycle, during the vulnerable period of the ventricular refractory period. This can potentially trigger ventricular fibrillation and is considered a high-risk arrhythmia.

What Is the Term for a PVC That Occurs on the T