Sinem Kilic1, Arnoud W J Van't Hof2, Jurrien Ten Berg3, Ana Ayesta Lopez4, Uwe Zeymer5, Martial Hamon6, Louis Soulat7, Debra Bernstein8, Efthymios N Deliargyris8, Phillippe Gabriel Steg9. 1. Isala, Department of Cardiology, Zwolle, The Netherlands. 2. Isala, Department of Cardiology, Zwolle, The Netherlands. Electronic address: v.r.c.derks@isala.nl. 3. St. Antonius Hospital, Department of Cardiology, Nieuwegein, The Netherlands. 4. Cardiology Department, Hospital General Universitario Gregorio Marañon, Madrid, Spain. 5. Klinikum Ludwigshafen, Ludwigshafen, Germany. 6. Clinical Research Department, University of Caen, Caen, France. 7. Services d'Aide Médicale Urgente, Service Mobile d'Urgence et de Réanimation Urgences, Centre Hospitalier, Chateauroux, France. 8. The Medicines Company, Parsippany, NJ, United States. 9. Université Paris-Diderot, Sorbonne Paris Cité, INSERM Unité-1148, Département Hospitalo-Universitaire Fibrosis Inflammation Remodeling, and Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Paris, France; NHLI, Royal Brompton Hospital, Imperial College, London, UK.
Abstract
BACKGROUND: The overall impact of post percutaneous coronary intervention (PCI) bleeding on long term prognosis after acute coronary syndromes (ACS) has been established, but it may differ between access and non-access related bleeding events. The impact of antithrombin choice on bleeding may also differ according to the origin of the bleed. We sought to determine the origin of bleeding relative to the access site, its prognostic significance and the respective impact of antithrombin therapy in the EUROMAX trial. METHODS: We performed a blinded review of the case records of all TIMI major or minor bleeds in the EUROMAX trial and assigned them in one of 2 categories: access site bleeds (ASB), or rest of bleeds (ROB). Incidence of bleeding for each category was assessed according to randomization to antithrombotic treatment. RESULTS: A total of 231 out of 2198 patients suffered a TIMI major/minor bleed (10.5%) and ASB accounted for 48.5%, while ROB for 51.5% of the bleeds. Thirty day mortality was 2.5% (50/1967) for patients without a bleed, 2.7% (3/112, p=0.76 vs. no bleed) for patients with ASB, and 10.9% (13/119, p<0.0001 vs. no bleed) for ROB patients. The use of bivalirudin reduced both ASB and ROB with relative risk reductions of 34% and 46% respectively. CONCLUSIONS: In contemporary primary PCI, bleeding originates with equal frequency either at or away from the access site. Access site bleeds were not associated with an excess in 30day mortality, but the rest of the bleeds were. Bivalirudin is associated with a lower risk of bleeding irrespective of origin. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT01087723.
RCT Entities:
BACKGROUND: The overall impact of post percutaneous coronary intervention (PCI) bleeding on long term prognosis after acute coronary syndromes (ACS) has been established, but it may differ between access and non-access related bleeding events. The impact of antithrombin choice on bleeding may also differ according to the origin of the bleed. We sought to determine the origin of bleeding relative to the access site, its prognostic significance and the respective impact of antithrombin therapy in the EUROMAX trial. METHODS: We performed a blinded review of the case records of all TIMI major or minor bleeds in the EUROMAX trial and assigned them in one of 2 categories: access site bleeds (ASB), or rest of bleeds (ROB). Incidence of bleeding for each category was assessed according to randomization to antithrombotic treatment. RESULTS: A total of 231 out of 2198 patients suffered a TIMI major/minor bleed (10.5%) and ASB accounted for 48.5%, while ROB for 51.5% of the bleeds. Thirty day mortality was 2.5% (50/1967) for patients without a bleed, 2.7% (3/112, p=0.76 vs. no bleed) for patients with ASB, and 10.9% (13/119, p<0.0001 vs. no bleed) for ROB patients. The use of bivalirudin reduced both ASB and ROB with relative risk reductions of 34% and 46% respectively. CONCLUSIONS: In contemporary primary PCI, bleeding originates with equal frequency either at or away from the access site. Access site bleeds were not associated with an excess in 30day mortality, but the rest of the bleeds were. Bivalirudin is associated with a lower risk of bleeding irrespective of origin. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT01087723.