Clinical Practice and Cases in Emergency Medicine
Cardiac Memory-induced T-wave Inversions
- Author(s): Polito, Sara C.
- Giordano, Jonathan A.
- Cooper, Benjamin L.
- et al.
Published Web Locationhttps://doi.org/10.5811/cpcem.2020.1.45527
Introduction: Cardiac memory refers to T-wave inversions that result when normal ventricular activation resumes following a period of abnormal ventricular activation.
Case Report: We present a case of a 29-year-old man with a pacemaker who presented with new, deep symmetric T-wave inversions caused by cardiac memory.
Discussion: Abnormal ventricular activation is most commonly induced by ventricular pacing but can also occur in the setting of transient left bundle branch blocks, ventricular tachycardia, and intermittent ventricular pre-excitation.
Conclusion: Recognition of this phenomenon may help to reduce unnecessary admissions, cardiac testing, and cardiac catheterizations.