True about Dressler's syndrome is all, except: (A) Presents as sub sternal chest pain, (B) Usually occurs within hours after MI, (C) May be due to early use of anti coagulant, (D) Responds to aspirin therapy
Answer is B. Dressler's syndrome (Fibrinous Pericarditis):
It is an autoimmune reaction and manifest after 2 - 3 weeks after MI.