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Eur Heart J. 2002 Aug;23(16):1282-90.

Improved reperfusion and clinical outcome with enoxaparin as an adjunct to streptokinase thrombolysis in acute myocardial infarction. The AMI-SK study.

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1
Thorax Centre, Erasmus University Medical Center, Rotterdam, The Netherlands.

Abstract

AIMS:

To establish whether the addition of enoxaparin (a low-molecular-weight heparin) to streptokinase therapy improves early and sustained coronary patency and clinical outcome in patients with evolving myocardial infarction.

METHODS AND RESULTS:

A total of 496 patients with acute myocardial infarction treated with streptokinase were randomized to an intravenous bolus (30 mg) and subcutaneous injections (1mg x kg(-1), twice daily) of enoxaparin (n=253), or placebo (n=243) for 3-8 days. The median duration of treatment in both groups was 5 days. ST-segment resolution at 90 min and 180 min measured by electrocardiogram was improved in patients receiving enoxaparin. Complete, partial and no ST-segment resolution at 180 min was observed in 36%, 44% and 19% in the enoxaparin group vs 25%, 44% and 31% in the placebo group, respectively (P=0.004). Assessment of the primary end-point revealed improved TIMI-3 flow with enoxaparin vs placebo (70% vs 58%, P=0.01). Combined TIMI-2 and -3 flow was also improved (88% vs 72%, P=0.001), as was TIMI frame count (P=0.003). The triple clinical end-point of death, reinfarction and recurrent angina at 30 days was reduced with enoxaparin (13% vs 21%, P=0.03).

CONCLUSION:

Streptokinase in combination with enoxaparin is associated with better ST-segment resolution and better angiographic patency at days 5-10, suggesting more effective reperfusion. This was associated with a significant reduction in clinical events, indicating less reocclusion.

PMID:
12175665
DOI:
10.1053/euhj.2001.3083
[Indexed for MEDLINE]

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