PMID- 17000891 OWN - NLM STAT- MEDLINE DCOM- 20061108 LR - 20181201 IS - 1076-0296 (Print) IS - 1076-0296 (Linking) VI - 12 IP - 4 DP - 2006 Oct TI - Unfractionated heparin reduces the anti-platelet effects of abciximab but not eptifibatide during PCI. PG - 458-64 AB - In 29 patients undergoing percutaneous coronary intervention (PCI), we obtained blood samples at baseline, 10 minutes after standard weight-based abciximab (n=15) or double-bolus eptifibatide (n=14) and 5 minutes after unfractionated heparin (UFH; 70 U/kg bolus). The median percent inhibition was significantly higher in the eptifibatide group compared with the abciximab group both before (96.5% [94-100] vs. 85% [77-89.5] [adenosine diphosphate; ADP]; 89.5% [84-95] vs. 59% [37.5-76.5] [thrombin receptor agonist peptide; TRAP], p<0.001 for both) and after UFH (95% [93-100] vs. 79% [68.8-87.5] [ADP]; 82% [77-93] vs. 51% [34.5-71.3] [TRAP], p<0.001 for both). Addition of UFH significantly reduced platelet inhibition in the abciximab group (85% [77-89.5] vs. 79% [68.8-87.5] [ADP]; 59% [37.5-76.5] vs. 51% [34.5-71.3] [TRAP], p<0.05 for both) but not in the eptifibatide group (96.5% [94-100] vs. 95% [93-100] [ADP]; 89.5% [84-95] vs. 82% [77-93] [TRAP], p=ns for both). Eptifibatide achieved superior platelet inhibition before but especially after UFH compared with abciximab. FAU - Deliargyris, Efthymios N AU - Deliargyris EN AD - Wake Forest University School of Medicine, Winston-Salem, NC 27157-1045, USA. FAU - Upadhya, Bharathi AU - Upadhya B FAU - Melton, Laura G AU - Melton LG FAU - Thompson, Cheryl AU - Thompson C FAU - Fisher, Melrose AU - Fisher M FAU - Gabriel, Don A AU - Gabriel DA FAU - Dehmer, Gregory J AU - Dehmer GJ FAU - Sane, David C AU - Sane DC LA - eng PT - Controlled Clinical Trial PT - Journal Article PL - United States TA - Clin Appl Thromb Hemost JT - Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis JID - 9508125 RN - 0 (Antibodies, Monoclonal) RN - 0 (Anticoagulants) RN - 0 (Immunoglobulin Fab Fragments) RN - 0 (Peptides) RN - 0 (Platelet Glycoprotein GPIIb-IIIa Complex) RN - 9005-49-6 (Heparin) RN - NA8320J834 (Eptifibatide) RN - X85G7936GV (Abciximab) SB - IM MH - Abciximab MH - Aged MH - *Angioplasty, Balloon, Coronary MH - Antibodies, Monoclonal/*therapeutic use MH - Anticoagulants/*therapeutic use MH - Blood Coagulation/drug effects MH - Eptifibatide MH - Female MH - Heparin/*therapeutic use MH - Humans MH - Immunoglobulin Fab Fragments/*therapeutic use MH - Male MH - Middle Aged MH - Partial Thromboplastin Time MH - Peptides/*therapeutic use MH - Platelet Aggregation/drug effects MH - Platelet Glycoprotein GPIIb-IIIa Complex/antagonists & inhibitors EDAT- 2006/09/27 09:00 MHDA- 2006/11/10 09:00 CRDT- 2006/09/27 09:00 PHST- 2006/09/27 09:00 [pubmed] PHST- 2006/11/10 09:00 [medline] PHST- 2006/09/27 09:00 [entrez] AID - 12/4/458 [pii] AID - 10.1177/1076029606293432 [doi] PST - ppublish SO - Clin Appl Thromb Hemost. 2006 Oct;12(4):458-64. doi: 10.1177/1076029606293432.