LMWH for Perioperative Anticoagulation in Patients on Chronic Warfarin Therapy
2004
OBJECTIVE:To review current data regarding low-molecular-weight heparin (LMWH) use for perioperative anticoagulation in patients receiving chronic warfarin therapy.DATA SOURCES:Data were obtained from the Sixth American College of Chest Physicians Consensus Conference on Antithrombotic Therapy guidelines and a MEDLINE search (1996-January 2003). Search terms included heparin, low-molecular-weight heparin, warfarin, perioperative care, and anticoagulants.DATA SYNTHESIS:Heparin is the most common agent used as bridge therapy for perioperative anticoagulation in patients on chronic warfarin therapy; LMWHs are also used. Studies that evaluated enoxaparin and/or dalteparin were reviewed.CONCLUSIONS:Although published studies demonstrate efficacy and safety of LMWHs, more data are needed to support their use as bridge therapy.
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