PMID- 20039931 OWN - NLM STAT- MEDLINE DCOM- 20100511 LR - 20181201 IS - 1365-2362 (Electronic) IS - 0014-2972 (Linking) VI - 40 IP - 2 DP - 2010 Feb TI - High-dose tirofiban with enoxaparin and inflammatory markers in high-risk percutaneous intervention. PG - 139-47 LID - 10.1111/j.1365-2362.2009.02237.x [doi] AB - AIM: The study assessed the benefit of high bolus dose tirofiban (HD-tirofiban) with enoxaparin compared with HD-tirofiban with unfractionated heparin (UFH). The study examined markers of platelet activation, thrombin generation and inflammation. MATERIALS AND METHODS: The study is a prospective single centre open-label trial of patients with high-risk acute coronary syndrome treated with percutaneous intervention (PCI) who were randomized to anticoagulation with UFH or enoxaparin with HD-tirofiban (25 microg kg(-1) bolus). This study measured a panel of platelet activation markers, inflammatory biomarkers and thrombus generation between the two groups. RESULT: Sixty patients undergoing high-risk PCI were enroled in the study. Platelet inhibition as assessed by whole blood aggregometry following HD-tirofiban infusion was similar in both the UFH and enoxaparin groups. CD40 ligand expression on platelets was significantly reduced following PCI with HD-tirofiban and either UFH or enoxaparin. Following PCI, there were significant reductions measured in other markers of platelet activation including PAC-1, P selectin, factor V/Va, platelet-monocyte aggregates and monocyte expression of Mac-1 as determined by analysis of venous blood samples using flow cytometry. Prothrombin fragment 1+2, D-dimer, von Willebrand factor and high sensitive C-reactive protein levels were significantly less post PCI in the enoxaparin group compared with those patients receiving UFH. CONCLUSION: The combination of HD tirofiban with enoxaparin resulted in an attenuated inflammatory response when compared with that of the combination of HD tirofiban with UFH. FAU - Walters, D L AU - Walters DL AD - Cardiology Department, The Prince Charles Hospital Laboratory, Brisbane, Australia. darren_walters@health.qld.gov.au FAU - Ray, M J AU - Ray MJ FAU - Wood, P AU - Wood P FAU - Perrin, E J AU - Perrin EJ FAU - Bett, J H N AU - Bett JH FAU - Aroney, C N AU - Aroney CN LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20091221 PL - England TA - Eur J Clin Invest JT - European journal of clinical investigation JID - 0245331 RN - 0 (Anticoagulants) RN - 0 (Biomarkers) RN - 0 (Blood Coagulation Factors) RN - 0 (Enoxaparin) RN - 0 (Platelet Aggregation Inhibitors) RN - 147205-72-9 (CD40 Ligand) RN - 42HK56048U (Tyrosine) RN - 9005-49-6 (Heparin) RN - GGX234SI5H (Tirofiban) SB - IM MH - Acute Coronary Syndrome/blood/*drug therapy/immunology/therapy MH - Aged MH - Angioplasty, Balloon MH - Anticoagulants/*pharmacology MH - Biomarkers/blood MH - Blood Coagulation Factors/analysis MH - Blood Platelets/immunology MH - CD40 Ligand/*metabolism MH - Enoxaparin/administration & dosage/*pharmacology MH - Female MH - Flow Cytometry MH - Heparin/administration & dosage/*pharmacology MH - Humans MH - Inflammation/immunology MH - Male MH - Middle Aged MH - Platelet Activation/*drug effects MH - Platelet Aggregation Inhibitors/*pharmacology MH - Prospective Studies MH - Tirofiban MH - Tyrosine/administration & dosage/*analogs & derivatives/pharmacology EDAT- 2009/12/31 06:00 MHDA- 2010/05/12 06:00 CRDT- 2009/12/31 06:00 PHST- 2009/12/31 06:00 [entrez] PHST- 2009/12/31 06:00 [pubmed] PHST- 2010/05/12 06:00 [medline] AID - ECI2237 [pii] AID - 10.1111/j.1365-2362.2009.02237.x [doi] PST - ppublish SO - Eur J Clin Invest. 2010 Feb;40(2):139-47. doi: 10.1111/j.1365-2362.2009.02237.x. Epub 2009 Dec 21.