Why Temporary Pacing in Acute Inferior Myocardial Infarction or No-Reflow Becomes a Trigger-Not a Remedy-For Ventricular Fibrillation: Undersensing, "R-On-T", Catheter Trauma and the Ischaemic Substrate
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Temporary pacing during acute inferior MI or no-reflow can trigger ventricular fibrillation rather than prevent it. Four mechanisms are highlighted: (1) acute ischemia lowers VF threshold and creates repolarization heterogeneity; (2) fragmented electrograms ca... ...
