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Routine use of fondaparinux in acute coronary syndromes: a 2-year multicenter experience.

Author(s): Schiele F, Meneveau N, Seronde MF, Descotes-Genon V, Dutheil J, Chopard R, Ecarnot F, Bassand JP, Reseau de Cardiologie de Franche Comte

Affiliation(s): Department of Cardiology, University Hospital Jean-Minjoz, Besancon, France. francois.schiele@univ-fcomte.fr

Publication date & source: 2010-02, Am Heart J., 159(2):190-8.

Publication type: Comparative Study; Multicenter Study; Research Support, Non-U.S. Gov't

BACKGROUND: Fondaparinux has recently been approved in patients with acute coronary syndromes. The primary aim of this study was to describe the changes in use of anticoagulants between January 2006 and December 2007. The secondary aim was to compare 30-day mortality and rate of a combined end point (30-day death or major bleeding) according to the initial and final anticoagulant agent used. METHODS: The rates of use of unfractionated heparin (UFH), enoxaparin, and fondaparinux were compared by periods of 1 month in a multicenter registry. The initial anticoagulant (first used at admission), the final anticoagulant (last used during hospitalization), and switches in anticoagulation were recorded. Temporal trends in monthly use of each anticoagulant were assessed; 30-day mortality rates and the combined end point were compared according to initial and final anticoagulant. RESULTS: Among 2,874 patients included, the first anticoagulant used was UFH in 26%, enoxaparin in 59%, and fondaparinux in 15%. Respective figures for final anticoagulant were 17%, 56%, and 27%. Although 3 centers did not use fondaparinux (community centers with catheterization laboratory), the overall rate of use of fondaparinux, as initial and final anticoagulant, increased at the expense of the use of enoxaparin. We observed a growing proportion of patients with a switch from UFH to either enoxaparin or fondaparinux, ranging from 5% at the beginning to 25% at the end of the study. Patients treated with UFH were older, had more comorbidities, were at higher risk, and received fewer guidelines-recommended treatments. In patients submitted to angioplasty and treated with fondaparinux, a bolus of 60 IU/kg of UFH was added. After adjustment, 30-day mortality and combined end point rates were higher in patients treated with UFH. Irrespective of the type of acute coronary syndromes, patients treated with enoxaparin or fondaparinux had similar outcomes. CONCLUSIONS: Between 2006 and 2007, the use of fondaparinux in patients with acute coronary syndromes increased considerably, either because it was used instead of enoxaparin or because of a switch from UFH. Adjusted mortality in patients treated with fondaparinux was lower than with UFH and similar to enoxaparin. Copyright (c) 2010 Mosby, Inc. All rights reserved.

Page last updated: 2010-10-05

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