SECONDARY ST AND T CHANGES/ABNORMALITIES:

ST and T changes occur when a problem in ventricular depolarization causes a problem with repolarization.

•ECG findings:

•Diffuse process.

•Generally involves both the ST and T waves.

•T wave axis is opposite from the QRS axis.

•Typical examples:

•Left ventricular hypertrophy, left bundle branch block, others.

•Primary ST and T changes can occur on top of secondary changes.