The TOTAL (Trial of Routine Aspiration Thrombectomy With PCI Versus PCI Alone in Patients With STEMI) trial randomized 10,732 patients with STEMI to aspiration thrombectomy before primary PCI or pri- mary PCI only.35 Bailout thrombectomy was performed in 7.1% of the primary PCI only group, whereas the rate of crossover from aspiration thrombectomy before primary PCI to primary PCI only was 4.6%. There were no differences between the 2 treatment groups, either in the primary composite endpoint of cardiovascular death, recurrent MI, cardiogenic shock, or New York Heart Association class IV heart failure at 180 days, or in the individual components of the primary endpoint, stent thrombosis, or target-vessel revascularization. There was a small but statistically significant increase in the rate of stroke in Recommendation 2015 Focused Update Recommendation Comment Class III: Harm Class IIb PCI should not be performed in a noninfarct artery at the time of primary PCI in patients with STEMI who are hemodynamically (Level of Evidence: B) PCI of a noninfarct artery may be considered in selected patients with STEMI and multivessel disease who are hemodynamically stable, either at the time of primary PCI or as a planned staged (Level of Evidence: B-R) Modified recommendation (changed class from III: Harm to IIb and expanded time frame in which multivessel PCI could be performed). PCI indicates percutaneous coronary intervention; and STEMI, ST-elevation myocardial infarction. Recommendation 2015 Focused Update Recommendations Comments Class IIa Class IIb Manual aspiration thrombectomy is reasonable for patients undergoing (Level of Evidence: B) The usefulness of selective and bailout aspiration thrombectomy in patients undergoing primary PCI is not well established.33 37 (Level of Evidence: C-LD) Modified recommendation (Class changed from IIa to IIb for selective and bailout aspiration thrombectomy before PCI). 