Subcutaneous Enoxaparin for Outpatient Anticoagulation Therapy in a Patient with an Aortic Valve Replacement

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Low-molecular-weight heparins have been administered for a variety of clinical conditions. A patient with a mechanical aortic valve replacement patient underwent elective transurethral prostatectomy. Anticoagulation was managed with unfractionated heparin immediately preoperatively and postoperatively. Warfarin was begun on postoperative day 1. The patient had a prolonged hospitalization due to subtherapeutic international normalized ratios (INR) despite warfarin administration. Because he intended to leave the hospital against medical advice before therapeutic INR was achieved, enoxaparin 1 mg/kg subcutaneously every 12 hours was prescribed to provide anticoagulation, facilitating discharge and improving the patient's quality of life. Enoxaparin was associated with an approximate saving of $4500 over warfarin. The only adverse event reported was bruising at the injection site.(Pharmacotherapy 1998; 18(2):408-412)

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