PMID- 16467747 OWN - NLM STAT- MEDLINE DCOM- 20060504 LR - 20181203 IS - 0026-4725 (Print) IS - 0026-4725 (Linking) VI - 54 IP - 1 DP - 2006 Feb TI - Subcutaneous enoxaparin following thrombolysis and intravenous unfractionated heparin in ST-elevation acute myocardial infarction: safety and efficacy of low vs full dose. PG - 131-7 AB - AIM: In ST-segment elevation myocardial infarction (STEMI) treated with fibrin-specific thrombolytic agents, early intravenous unfractionated heparin (UFH) is warranted. Low molecular weight heparin Enoxaparin currently represents an alternative to UFH, to be used until hospital discharge. Since optimal dosing of subcutaneous Enoxaparin is not standardized, we conducted an observational study to compare safety and efficacy of low (4,000 U once daily) vs full dose (100 U/kg twice daily) regimens. METHODS: All STEMI patients successfully treated with tenecteplase and intravenous UFH and referred to the Catheterization Laboratory between June 2002-November 2003 for predischarge coronary angiography, were evaluated. The primary end-point was the composite of hemorrhages and residual angina/reinfarction during Enoxaparin administration, whereas secondary end-points were occurrence of venous thromboembolism (VTE) during Enoxaparin administration, and infarct-related artery (IRA) patency rate at predischarge coronary angiography. RESULTS: Out of 123 patients, 57 (M/F 45/12, mean age 65.8+/-8.1 years) received low dose, and 66 (men/women 45/21, mean age 62.6+/-11.8 years) full dose subcutaneous Enoxaparin. The incidence of the composite primary end-point was comparable in both groups (19% vs 26%; P=NS). Also, null was the occurrence of VTE, whereas the IRA patency rate did not significantly differ in the 2 groups (84% vs 86% TIMI 3 and 11% vs 9% TIMI 2 flow grades; P=NS). CONCLUSIONS: In patients with STEMI undergoing successful recanalization with tenecteplase and intravenous UFH, low dose subcutaneous Enoxaparin appears preferable to full dose, in the light of comparable safety and clinical efficacy and superior easiness of use. FAU - Rubboli, A AU - Rubboli A AD - Division of Cardiology, Ospedale Maggiore, Bologna, Italy. andrearubboli@libero.it FAU - Gatti, C AU - Gatti C FAU - Spinolo, L AU - Spinolo L FAU - Parollo, R AU - Parollo R FAU - Spitali, G AU - Spitali G FAU - Maresta, A AU - Maresta A LA - eng PT - Clinical Trial PT - Journal Article PT - Multicenter Study PL - Italy TA - Minerva Cardioangiol JT - Minerva cardioangiologica JID - 0400725 RN - 0 (Enoxaparin) RN - 0 (Fibrinolytic Agents) RN - 9005-49-6 (Heparin) RN - EC 3.4.21.68 (Tissue Plasminogen Activator) RN - WGD229O42W (Tenecteplase) SB - IM MH - Aged MH - Dose-Response Relationship, Drug MH - Drug Therapy, Combination MH - Enoxaparin/administration & dosage/*therapeutic use MH - Female MH - Fibrinolytic Agents/administration & dosage/*therapeutic use MH - Heart Conduction System/*physiopathology MH - Heparin/administration & dosage/*therapeutic use MH - Humans MH - Injections, Intravenous MH - Injections, Subcutaneous MH - Italy MH - Male MH - Middle Aged MH - Myocardial Infarction/diagnosis/*drug therapy/physiopathology MH - Prospective Studies MH - Tenecteplase MH - *Thrombolytic Therapy MH - Tissue Plasminogen Activator/*therapeutic use MH - Treatment Outcome EDAT- 2006/02/10 09:00 MHDA- 2006/05/05 09:00 CRDT- 2006/02/10 09:00 PHST- 2006/02/10 09:00 [pubmed] PHST- 2006/05/05 09:00 [medline] PHST- 2006/02/10 09:00 [entrez] PST - ppublish SO - Minerva Cardioangiol. 2006 Feb;54(1):131-7.