Management of Anterolateral STEMI
Initial Assessment and Treatment
- The European Society of Cardiology recommends primary percutaneous coronary intervention (PCI) as the reperfusion strategy for all patients with anterolateral STEMI when it can be performed within 90 minutes of first medical contact by an experienced team 1
- The American College of Cardiology recommends obtaining a 12-lead ECG within 10 minutes of presentation, administering aspirin 162-325 mg (chewed) to all patients without contraindications, establishing IV access, administering oxygen only if saturation <90%, and placing on cardiac monitor with emergency resusculation equipment nearby 2
Reperfusion Strategy
- The choice of reperfusion strategy depends on time factors, with primary PCI preferred when available within 90-120 minutes 1
- The American College of Cardiology recommends administering a loading dose of potent P2Y12 inhibitor, such as prasugrel or ticagrelor, and anticoagulation with unfractionated heparin 70-100 U/kg IV bolus for primary PCI strategy 2
- The American College of Cardiology recommends administering fibrin-specific agent, such as tenecteplase, alteplase, or reteplase, within 30 minutes of first medical contact, and providing anticoagulation with enoxaparin or UFH for fibrinolytic strategy 2
Monitoring and Complications
- The American College of Cardiology recommends monitoring for hemodynamic instability and arrhythmias, performing echocardiography to assess LV function and detect complications, and initiating ACE inhibitor within 24 hours 2
- The American College of Cardiology recommends starting beta-blocker within 24 hours if no contraindications, and beginning high-intensity statin therapy 2
Long-term Management
- The American College of Cardiology recommends continuing dual antiplatelet therapy (DAPT) for 12 months, assessing for mechanical complications, and considering aldosterone antagonist for patients with EF ≤40% and heart failure or diabetes 2
- The American College of Cardiology recommends evaluating for implantable cardioverter-defibrillator if sustained ventricular arrhythmias occur >48 hours post-STEMI 2
Special Considerations
- The American College of Cardiology recommends intra-aortic balloon counterpulsation when shock is not quickly reversed with pharmacological therapy 3
- The American College of Cardiology recommends early revascularization (PCI or CABG) for patients <75 years who develop shock within 36 hours of MI, and considering early revascularization in selected patients ≥75 years with good prior functional status 3