Hello, I'm an expert in the field of cardiology with a focus on electrophysiology. When it comes to T wave inversion on an electrocardiogram (ECG), it's important to consider the context in which it appears. T wave inversion can be a normal variant, particularly in certain leads of the ECG. For instance, it is considered normal to see inverted T waves in leads III, aVR, and V1, especially when they are associated with a predominantly negative QRS complex. However, T wave inversion can also be indicative of various cardiac conditions, including myocardial ischaemia. In some cases, T wave inversion may be a benign finding, while in others, it could signal a serious underlying issue that requires further investigation. It's crucial to evaluate the ECG in the context of the patient's symptoms, medical history, and other diagnostic information. read more >>

Myocardial ischaemia may also give rise to T wave inversion, but it must be remembered that inverted T waves are normal in leads III, aVR, and V1 in association with a predominantly negative QRS complex.read more >>