TY - BOOK AU - Ben-Dor, Itsik AU - Buchanan, Kyle AU - Gajanana, Deepakraj AU - Iantorno, Micaela AU - Kolm, Paul AU - Okubagzi, Petros AU - Pichard, Augusto D AU - Rogers, Toby AU - Satler, Lowell F AU - Thourani, Vinod H AU - Torguson, Rebecca AU - Waksman, Ron AU - Weintraub, William S TI - The impact of in-hospital P2Y12 inhibitor switch in patients with acute coronary syndrome SN - 1878-0938 PY - 2018/// KW - *Acute Coronary Syndrome/th [Therapy] KW - *Drug-Eluting Stents KW - *Peptide Fragments/tu [Therapeutic Use] KW - *Percutaneous Coronary Intervention/mt [Methods] KW - *Purinergic P2Y Receptor Antagonists/tu [Therapeutic Use] KW - *Thrombolytic Therapy/mt [Methods] KW - *Warfarin/tu [Therapeutic Use] KW - Aged KW - Antithrombins/tu [Therapeutic Use] KW - Drug Substitution KW - Female KW - Follow-Up Studies KW - Hirudins KW - Humans KW - Male KW - Middle Aged KW - Recombinant Proteins/tu [Therapeutic Use] KW - Retrospective Studies KW - Treatment Outcome KW - MedStar Heart & Vascular Institute KW - Journal Article N1 - Available in print through MWHC library: 2002 - present N2 - BACKGROUND/PURPOSE: Dual antiplatelet therapy (DAPT) varies after placement of drug-eluting stents (DES) in patients presenting with acute coronary syndromes (ACS). Our aim was to study patient characteristics and predictors of switching, in-hospital or at discharge, from clopidogrel (CLO) to ticagrelor (TIC) or vice versa; CONCLUSIONS: Switching from 1 generation P2Y12 inhibitor to another does occur in ACS patients. Clinical needs such as in-hospital CABG or oral anticoagulation upon discharge are real and dictate the switch from TIC to CLO; Copyright (c) 2018 Elsevier Inc. All rights reserved; METHODS/MATERIALS: The study population included patients with ACS who had DES and initially received either CLO or TIC between January 2011 and December 2017. Patients were divided into 4 groups based on initial DAPT choice and whether DAPT was switched in-hospital or during discharge. Clinical outcomes of interest were bleeding events, need for anticoagulation, and need for in-hospital coronary artery bypass graft (CABG); RESULTS: We identified 2837 patients who received DES and started on DAPT. DAPT switch from 1 P2Y12 inhibitor to another occurred in 9%, either in-hospital or at discharge. Of 1834 patients started on CLO, 112 were switched to TIC. Of 1003 patients started on TIC, 142 were switched to CLO. The need for in-hospital CABG was 7.8% in the TIC-CLO group compared to none in the CLO-TIC group (p=0.002). Adjusted for covariates, the TIC-CLO group was 3 times more likely to need anticoagulation with warfarin than the CLO-CLO group (p<0.001) and over 5 times more likely than the CLO-TIC group and the TIC-TIC group (p<0.005 for both); SUMMARY: A single-center observational study of 2837 patients with acute coronary syndromes treated with drug-eluting stents found that some do get switched from one generation P2Y12 inhibitor to another. The switch from clopidogrel to ticagrelor is driven by clinical needs such as in-hospital coronary artery bypass grafting or the need for oral anticoagulation upon discharge UR - https://dx.doi.org/10.1016/j.carrev.2018.09.007 ER -