Definitions
Class I Recommendations
Class IIa Recommendations
Class IIb Recommendations
Class III Recommendations
100

These treatments are strongly recommended

What is Class I?

100

Patients with stable ischemic heart disease who receive DES should receive this treatment 

What is aspirin indefinitely and P2Y12 inhibitor for at least 6 months?

100

For patients with NSTE-ACS who are treated with medical therapy alone, it is reasonable to use this P2Y12 inhibitor in place of clopidogrel

What is ticagrelor? 

100

It may be reasonable for patients with ACS who are treated only with medical therapy to modify DAPT timeline in this way if they do not have high risk of bleeding and have had no overt bleeding

What is continue DAPT for longer than 12 months? 

100

The P2Y12 inhibitor that should not be used by patient with a history of stroke or TIA

What is prasugrel? 

200

The 2 components that make up DAPT

What is aspirin and P2Y12 inhibitor? 

200

Patients with ACS who receive BMS or DES should receive this treatment

What is aspirin indefinitely and P2Y12 inhibitor for at least 12 months? 

200

It is reasonable for patients with ACS + stent without high bleeding risk or history of stroke/TIA to use this P2Y12 inhibitor in place of clopidogrel

What is prasugrel?

200

It may be reasonable for patients with SIHD who recieve DES and have high risk of bleeding or who have overt bleeding to stop P2Y12 inhibitor after this length of time

What is 3 months? 

200

Unless history of these events, DAPT in SIHD is not beneficial

What is CABG within the last 12 months, prior ACS, or stent implantation? 

300

These treatments are reasonable and have high quality evidence

What is class IIa?

300

Patients with ACS treated with DAPT (post-stent) who then undergo CABG should follow this treatment regimen post-op

What is resume aspirin indefinitely and P2Y12 inhibitor for 12 months from ACS event? 

300

For patients with ACS who are treated with stent, it is reasonable to use this P2Y12 inhibitor in place of clopidogrel

What is ticagrelor?

300

It may be reasonable for patients with SIHD who then undergo CABG to follow this treatment regimen post-op

What is aspirin and P2Y12 inhibitor for 12 months post-CABG? 

300

If DAPT would need to be discontinued peri-op, it would be harmful to undergo elective non-cardiac surgery within this timeframe of DES implantation

What is 3 months? 

400

These treatments have either no benefit or cause harm

What is Class III? 

400

Patients with ACS who are treated only with medical therapy should receive this treatment

What is aspirin indefinitely and P2Y12 inhibitor for at least 12 months? 

400

BONUS: aspirin antiplatelet mechansim

What is irreversibly inhibits cyclooxygenase 1 -> inhibits production of thromboxane A2 -> inhibits platelet activation

400

It may be reasonable for patients with ACS treated with stent who have high risk of bleeding or who have overt bleeding to stop P2Y12 inhibitor after this length of time 

What is 6 months? 

400

If DAPT would need to be discontinued peri-op, it would be harmful to undergo elective non-cardiac surgery within this timeframe of BMS implantation

What is 30 days?

500

These treatments may be reasonable and have moderate quality evidence

What is Class IIb? 

500

Patients with STEMI treated with fibrinolytic therapy should receive this treatment

What is aspirin indefinitely and P2Y12 inhibitor for a minimum of 14 days and ideally at least 12 months? 

500

BONUS: major characteristic that differentiates ticagrelor from other P2Y12 inhibitors

What is reversible inhibition?

500

It may be reasonable for patients with STEMI who are treated with fibrinolytic therapy to modify DAPT timeline in this way if they do not have high risk of bleeding and have had no overt bleeding

What is continue DAPT for longer than 12 months?

500

BONUS: P2Y12 inhibitor antiplatelet mechanism (other than ticagrelor)

What is competitively inhibits ADP binding to P2Y12 receptor -> inhibits platelet activation