Peaked T wave

Abnormally tall, narrow, symmetric T waves on the ECG, reflecting altered ventricular repolarization and increased T-wave amplitude.

Causes

• Hyperkalemia affecting myocardial repolarization

• Early sign of myocardial ischemia

• Left ventricular hypertrophy

• Cerebral insults

  • Intracranial hemorrhage

  • Stroke

  • Traumatic brain injury

• Physiological and benign causes

  • Normal variant benign early repolarization

  • Young age-related ECG patterns

  • Athletic heart patterns