Why Was There a T-Wave Abnormality on My ECG?

By Staff WriterLast Updated Apr 14, 2020 4:16:56 AM ET

Some explanations for a T-wave abnormality on an ECG include myocardial infarction or ischemia, pericarditis, myocarditis, myocardial contusion due to trauma, and mitral valve prolapse, according to ECG Learning Center. The cause for T-wave changes on an ECG is based on the type of abnormality that is present.