PMID- 26448869 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20151009 LR - 20210112 IS - 2053-3624 (Print) IS - 2053-3624 (Electronic) IS - 2053-3624 (Linking) VI - 2 IP - 1 DP - 2015 TI - Bivalirudin versus unfractionated heparin: a meta-analysis of patients receiving percutaneous coronary intervention for acute coronary syndromes. PG - e000258 LID - 10.1136/openhrt-2015-000258 [doi] LID - e000258 AB - OBJECTIVE: Acute coronary syndrome (ACS) encompasses ST segment elevation myocardial infarction (STEMI), with generally high thrombus burden and non-ST segment elevation ACS (NSTE-ACS), with lower thrombus burden. In the setting of percutaneous coronary intervention (PCI) for ACS, bivalirudin appears superior to unfractionated heparin (UFH), driven by reduced major bleeding. Recent trials suggest that the benefit of bivalirudin may be reduced with use of transradial access and evolution in antiplatelet therapy. Moreover, a differential role of bivalirudin in ACS cohorts is unknown. METHODS: A meta-analysis of randomised trials comparing bivalirudin and UFH in patients with ACS receiving PCI, with separate analyses in STEMI and NSTE-ACS groups. Overall estimates of treatment effect were calculated with random-effects model. RESULTS: In 5 trials of STEMI (10 358 patients), bivalirudin increased the risk of acute stent thrombosis (ST) (OR 3.62; CI 1.95 to 6.74; p<0.0001) compared with UFH. Bivalirudin reduced the risk of major bleeding only when compared with UFH plus planned glycoprotein IIb/IIIa inhibitors (GPI) (OR 0.49; CI 0.36 to 0.67; p<0.00001). In 14 NSTE-ACS trials (25 238 patients), there was no difference between bivalirudin and UFH in death, myocardial infarction or ST. However, bivalirudin reduced the risk of major bleeding compared with UFH plus planned GPI (OR 0.52; CI 0.43 to 0.62; p<0.00001), or UFH plus provisional GPI (OR 0.68; CI 0.46 to 1.01; p=0.05). The reduction in major bleeding with bivalirudin was not related to vascular access site. CONCLUSIONS: Bivalirudin increases the risk of acute ST in STEMI, but may confer an advantage over UFH in NSTE-ACS while undergoing PCI, reducing major bleeding without an increase in ST. FAU - Farag, Mohamed AU - Farag M AD - Department of Cardiology , East and North Hertfordshire NHS Trust , Hertfordshire , UK ; Postgraduate Medical School, University of Hertfordshire , Hertfordshire , UK. FAU - Gorog, Diana A AU - Gorog DA AD - Department of Cardiology , East and North Hertfordshire NHS Trust , Hertfordshire , UK ; Postgraduate Medical School, University of Hertfordshire , Hertfordshire , UK ; National Heart & Lung Institute, Imperial College , London , UK. FAU - Prasad, Abhiram AU - Prasad A AD - Cardiovascular and Cell Sciences Research Institute, St George's, University of London , London , UK. FAU - Srinivasan, Manivannan AU - Srinivasan M AD - Department of Cardiology , East and North Hertfordshire NHS Trust , Hertfordshire , UK. LA - eng PT - Journal Article DEP - 20151001 PL - England TA - Open Heart JT - Open heart JID - 101631219 PMC - PMC4593234 EDAT- 2015/10/09 06:00 MHDA- 2015/10/09 06:01 PMCR- 2015/10/01 CRDT- 2015/10/09 06:00 PHST- 2015/04/03 00:00 [received] PHST- 2015/08/07 00:00 [revised] PHST- 2015/08/27 00:00 [accepted] PHST- 2015/10/09 06:00 [entrez] PHST- 2015/10/09 06:00 [pubmed] PHST- 2015/10/09 06:01 [medline] PHST- 2015/10/01 00:00 [pmc-release] AID - openhrt-2015-000258 [pii] AID - 10.1136/openhrt-2015-000258 [doi] PST - epublish SO - Open Heart. 2015 Oct 1;2(1):e000258. doi: 10.1136/openhrt-2015-000258. eCollection 2015.