JOURNAL ARTICLE
REVIEW

LMWH for perioperative anticoagulation in patients on chronic warfarin therapy

Luke M Heuts, Beth M McLendon Arvik, Dawn E Cender
Annals of Pharmacotherapy 2004, 38 (6): 1065-9
15113980

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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