Class III: No Bene t Routine aspiration thrombectomy before primary PCI is not useful (33 37). (Level of Evidence: A) New recommendation ( Class III: No Bene t added for routine aspiration thrombectomy before PCI). PCI indicates percutaneous coronary intervention; and LD, limited data. Levine et al. J A C C V O L . 6 7 , N O . 1 0 , 2 0 1 6 potential bene t of a strategy of selective or bailout aspiration thrombectomy (Class IIb, LOE C-LD). Bailout aspiration thrombectomy is de ned as thrombectomy that was initially unplanned but was later used during the procedure because of unsatisfactory initial result or procedural complication, analogous to the de nition of bailout glycoprotein IIb/IIIa use. It should be noted that the preceding recommenda- tions and text apply only to aspiration thrombectomy; no clinical bene t for routine rheolytic thrombectomy has been demonstrated in patients with STEMI undergoing primary PCI (30,43,44). PRESIDENTS AND STAFF American College of Cardiology Kim A. Williams, Sr, MD, FACC, FAHA, President Shalom Jacobovitz, Chief Executive Of cer William J. Oetgen, MD, MBA, FACC, Executive Vice President, Science, Education, Quality, and Publications Amelia Scholtz, PhD, Publications Manager, Science, Education, and Quality American College of Cardiology/American Heart Association Lisa Brad eld, CAE, Director, Science and Clinical Policy Abdul R. Abdullah, MD, Associate Science and Medicine Advisor Allison Rabinowitz, Project Manager, Science and Clinical Policy American Heart Association Mark A. Creager, MD, FAHA, FACC, President Nancy Brown, Chief Executive Of cer Rose Marie Robertson, MD, FAHA, Chief Science Of cer Gayle R. Whitman, PhD, RN, FAHA, FAAN, Senior Vice President, Of ce of Science Operations JodyHundley,ProductionManager,Scienti cPublications, Of ce of Science Operations R E F E R E N C E S 1. ACCF/AHA Task Force on Practice Guidelines. 