RATE-RELATED LEFT BUNDLE BRANCH BLOCK AND CARDIAC MEMORY IN A PATIENT WITHOUT ISCHEMIC HEART DISEASE

Cardiac memory (CM) is a phenomenon whereby reversible T-wave abnormalities on an electrocardiogram (ECG) arise due to a change in the direction of cardiac activation, which often happens with rate-related left bundle branch block (LBBB) or ventricular pacing and can mimic myocardial ischemia. We