Understanding T-Wave Abnormalities in High Lateral ECG Leads

T Abnormality in High Lateral Leads

* Tall, tented T waves (Peaked T wave) in V1-V3:

- Early repolarization (normal finding in 1% population, especially children & young adults) or may represent ventricular hypertrophy or ventricular pre-excitation

* Hyperacute T waves:

- Extremely tall, symmetrical, pointed T waves in high lateral leads are called hyper-acute T waves.

- Represent reperfusion after coronary revascularization and also seen immediately after pre-cordial shock in defibrillation for ventricular fibrillation arrest.