Page 414 - ECG dr shamol_Slide

Most common cause

Myocardial infarction/ischaemia
Drugs (e.g. β-blocker, digoxin)

Idiopathic fibrosis

Inflammation

 Acute (e.g. aortic root abscess in infective endocarditis)
 Chronic (e.g. sarcoidosis; Chagas disease,)

 Trauma (e.g. cardiac surgery)

Congenital