PMID- 22575312 OWN - NLM STAT- MEDLINE DCOM- 20120809 LR - 20220330 IS - 1558-3597 (Electronic) IS - 0735-1097 (Linking) VI - 59 IP - 20 DP - 2012 May 15 TI - Clinical outcomes following stent thrombosis occurring in-hospital versus out-of-hospital: results from the HORIZONS-AMI (Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) trial. PG - 1752-9 LID - 10.1016/j.jacc.2011.12.042 [doi] AB - OBJECTIVES: The study sought to determine whether rapid access to medical care and reperfusion results in a better prognosis in patients with in-hospital compared with out-of-hospital stent thrombosis (ST) in patients with ST-segment elevation myocardial infarction (STEMI) in the HORIZONS-AMI (Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) trial. BACKGROUND: Whether the prognosis of in-hospital and out-of-hospital ST are similar is uncertain, with conflicting data reported from prior studies. METHODS: A total of 3,602 STEMI patients undergoing primary percutaneous coronary intervention (PCI) were randomized to bivalirudin (n = 1,800) versus unfractionated heparin (UFH) plus a glycoprotein IIb/IIIa inhibitor (GPI) (UFH+GPI; n = 1,802). Stents were implanted in 3,202 patients, 156 (4.9%) of whom developed Academic Research Consortium definite/probable ST during 3-year follow-up. We investigated the 1-year clinical outcomes after ST in 54 patients with in-hospital ST compared with 102 patients with out-of-hospital ST. RESULTS: One year after the ST event, patients with in-hospital compared with out-of-hospital ST had significantly greater mortality (27.8% vs. 10.8%, p < 0.01); most deaths in both groups occurred within 1 week of the ST event. Patients with in-hospital ST also had higher rates of major bleeding (21.2% vs. 6.0%, p < 0.01), but a lower rate of myocardial infarction (56.6% vs. 77.5%, p < 0.01). Subgroup analysis within both in-hospital and out-of-hospital ST groups indicated that subacute ST had the highest mortality. By multivariable analysis, 1-year mortality was significantly increased in patients with in-hospital compared with out-of-hospital ST (adjusted hazard ratio: 4.62, 95% confidence interval: 1.98 to 10.77, p < 0.01). Additional correlates of increased mortality after an ST event included diabetes and randomization to UFH+GPI (vs. bivalirudin). CONCLUSIONS: Following primary PCI for STEMI, more than one-third of all ST events during 3-year follow-up occurred during the index hospital phase. Mortality and major bleeding were significantly higher after in-hospital ST compared with out-of-hospital ST. (Harmonizing Outcomes With Revascularization and Stents in Acute Myocardial Infarction; NCT00433966). CI - Copyright (c) 2012 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved. FAU - Dangas, George D AU - Dangas GD AD - Department of Cardiology, Mount Sinai Medical Center, New York, New York 10029, USA. george.dangas@mssm.edu FAU - Claessen, Bimmer E AU - Claessen BE FAU - Mehran, Roxana AU - Mehran R FAU - Brener, Sorin AU - Brener S FAU - Brodie, Bruce R AU - Brodie BR FAU - Dudek, Dariusz AU - Dudek D FAU - Witzenbichler, Bernhard AU - Witzenbichler B FAU - Peruga, Jan Z AU - Peruga JZ FAU - Guagliumi, Giulio AU - Guagliumi G FAU - Moses, Jeffrey W AU - Moses JW FAU - Lansky, Alexandra J AU - Lansky AJ FAU - Xu, Ke AU - Xu K FAU - Stone, Gregg W AU - Stone GW LA - eng SI - ClinicalTrials.gov/NCT00433966 PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Am Coll Cardiol JT - Journal of the American College of Cardiology JID - 8301365 RN - 0 (Hirudins) RN - 0 (Peptide Fragments) RN - 0 (Recombinant Proteins) RN - TN9BEX005G (bivalirudin) SB - IM CIN - J Am Coll Cardiol. 2012 May 15;59(20):1760-2. PMID: 22575313 MH - Aged MH - Female MH - Follow-Up Studies MH - Hirudins MH - Hospital Mortality/*trends MH - Hospitalization/trends MH - Humans MH - Male MH - Middle Aged MH - Myocardial Infarction/*mortality/*surgery MH - Myocardial Revascularization/*adverse effects/methods MH - Peptide Fragments/therapeutic use MH - Recombinant Proteins/therapeutic use MH - Retrospective Studies MH - Stents/*adverse effects MH - Thrombosis/etiology/*mortality MH - Treatment Outcome EDAT- 2012/05/12 06:00 MHDA- 2012/08/10 06:00 CRDT- 2012/05/12 06:00 PHST- 2011/09/01 00:00 [received] PHST- 2011/11/29 00:00 [revised] PHST- 2011/12/06 00:00 [accepted] PHST- 2012/05/12 06:00 [entrez] PHST- 2012/05/12 06:00 [pubmed] PHST- 2012/08/10 06:00 [medline] AID - S0735-1097(12)00791-7 [pii] AID - 10.1016/j.jacc.2011.12.042 [doi] PST - ppublish SO - J Am Coll Cardiol. 2012 May 15;59(20):1752-9. doi: 10.1016/j.jacc.2011.12.042.