The strain pattern occurs when the right ventricular wall is quite thick, and the pressure is high, as well. Strain causes ST segment depression and asymmetric T wave inversions in leads V1 to V3.

ST segment elevation from pericarditis is diffuse (all leads except aVR and V1) and concave upward. PR segment depression can be from acute pericarditis or an atrial infarction. Diffuse T wave ...

along with exercise-induced polymorphic VT No arrhythmia was induced by exercise Arrhythmogenic right ventricular cardiomyopathy T-wave inversion in leads V1-V3 and epsilon wave in lead V1 ...

T-wave inversions were present in 22.8% BA, 4.5% WA and 13.4% BC. T-wave inversions in BA occurred with similar frequency in men and women and were predominantly confined to leads V1–V4. T-wave ...