This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
48 y old male patient with anterior myocardial infarction has undergone a primary angioplasty with a bare metal stent . You are posted as a junior resident in the ward preparing a discharge card . What duration of antiplatelets will you advise to the patient ? 
Select and explain. 
A. Dual antiplatelets for 12months and then aspirin longterm, B. Ticagrelor for 1month and aspirin longterm, C. Aspirin for 1month and ticagrelor longterm, D. Ticagrelor alone is adequate longterm
A: Dual antiplatelets for 12months and then aspirin longterm
Answer: A: Dual antiplatelets for 12months and then aspirin longterm 
Explanation: Stent thrombosis Prevention Acute (<24 h) Dual antiplatelet therapy (DAPT) Subacute(1-30 days) -Aspirin -P2Y12 receptor blocker(ticagrelor) Late (30 days-1 year) DAPT for up to 1 year - If DAPT is discontinued in the 1st month- 3 - 9 fold increased risk for stent thrombosis. - If elective surgery has to be done where discontinuation of antiplatelet therapy is required, surgery should be postponed for minimum 3 months and ideally for 6 months.