 - Angina, myocardial ischemia MI, symptomatic congestive heart failure, cerebrovascular accident, transient ischemic attack, arterial embolism, pulmonary embolism, percutaneous transluminal coronary angioplasty PTCA or coronary artery bypass graft CABG within the past 6 months. Deep venous thrombosis within 6 months, unless the patient is anticoagulated without the use of warfarin for at least 2 weeks. In this situation, low molecular weight heparin is preferred. 