Initiation of new medications and coronary revascularization before noncardiac surgery

ASA
Do not initiate ASA for the prevention of perioperative cardiac events

β-Blocker
Do not initiate a β-blocker within 24 hours before noncardiac surgery

α2-Agonist
Do not initiate an α2-agonist for the prevention of perioperative cardiovascular events

Calcium channel blocker
Do not initiate a calcium channel blocker for the prevention of perioperative cardiovascular events

Coronary revascularization
Do not undertake preoperative prophylactic coronary revascularization for patients with stable coronary artery disease