The Heart Remembers: Anterior T wave inversions in a Patient with Intermittent Left Bundle Branch Block

Even though the new onset of T wave inversions on the electrocardiogram is always an alarming finding, but they are not always pathognomonic of myocardial ischemia. Many cardiac and non-cardiac conditions have been described in association with T wave inversions on the electrocardiogram. Cardiac memory is a phenomenon characterized by the development of altered T wave polarity on the electrocardiogram when the intrinsic rhythm resumes after a period of abnormal myocardial activation. Misdiagnosis of this condition often leads to unwarranted diagnostic workup and therapeutic interventions. Herein we report a case of 81-year-old female patient with intermittent left bundle branch block presenting with new onset T wave inversions in anterior leads.