The Seventh American College of Chest Physicians (ACCP) Conference on Antithrombotic and Thrombolytic Therapy provides guidelines for outpatient management of anticoagulation therapy. The ACCP guidelines recommend short-term warfarin therapy, with the goal of maintaining an International Normalized Ratio (INR) of 2.5 +/- 0.5, after major orthopedic surgery. Therapy for venous thromboembolism in...

Venous thromboembolism (VTE) in pregnancy is a major cause of maternal morbidity and mortality, but its prevention, medical thromboprophylaxis, can bleeding complications. Without up to 10% women with history VTE are at risk pregnancy-related recurrence. For those who not on long-term anticoagulation medication, guidelines recommend subcutaneous low-molecular-weight heparin (LMWH) all the postp...

Heparin is the most widely used anticoagulant for the prevention and initial treatment of venous thromboembolism, for haemodialysis and cardiopulmonary bypass procedures and, with aspirin, for the management of acute coronary syndromes. In venous thrombosis and coronary disease low molecular weight heparins (LMWHs) have been demonstrated to be at least as effective and safe as unfractionated he...

Patients given unfractionated heparin (UFH) or low-molecular-weight heparin (LMWH) for prophylaxis or treatment of thrombosis sometimes suffer serious bleeding. We showed previously that peptides containing 3 or more tandem repeats of heparin-binding consensus sequences have high affinity for LMWH and neutralize LMWH (enoxaparin) in vivo in rats and in vitro in citrate. We have now modified the...

Introduction Pharmacological prophylaxis against venous thromboembolism using low molecular weight heparin (LMWH) has become a standard measure in the intensive care unit (ICU) [1-3]. Risk factors in these patients include critical illness, mechanical ventilation, sedative medications and central venous catheter insertion [2]. In cases where pharmacological prophylaxis is not feasible, inferior...

Besides low molecular weight heparins (LMWHs) a number of new antithrombotic agents have been evaluated mainly in the prevention of deep vein thrombosis (DVT) and, to a lesser extent, in the treatment of established DVT. They include the Pentasaccharide, a synthetic ultra LMWH, Dermatan Sulphate, a glycosaminoglycan which activates heparin cofactor II, Orgaran, a mixture of Heparan and of Derma...

Vitamin k Antagosnist Oral Anticoagulants (VKA) are effective in the primary and secondary prevention of venous thromboembolism, in the prevention of systemic embolism and stroke in patients with prosthetic heart valves or atrial fibrillation. In patients with thromboembolic disease Low Molecular Weight Heparin (LMWH) and oral VKA are started at diagnosis. LMWH is than stopped once the Internat...

OBJECTIVE To study the effect of unfractionated heparin (UFH) versus low molecular weight heparin (LMWH) in combination with glycoprotein (Gp) IIb/IIIa blockers on platelet activation and aggregation. METHODS Washed platelets were stimulated with thrombin in the presence or absence of UFH (monoparin), LMWH (enoxaparin), and a Gp IIb/IIIa blocker (abciximab, eptifibatide, or tirofiban). RESU...

A systematic study that compares the patterns of use of unfractionated heparin (UFH) and low-molecular-weight heparin (LMWH) in patients with acute coronary syndromes (ACS) has, to date, not been carried out in the "real-world" setting. The aim of this report is to identify patterns of use of UFH and LMWH and to report their correlates and outcomes in a broad spectrum of ACS patients enrolled i...

BACKGROUND Unfractionated heparin has been the standard anticoagulant used immediately after mechanical heart valve replacement (MHVR). The purpose of this study was to assess a postoperative anticoagulation protocol with low-molecular-weight heparin (LMWH) immediately after MHVR without the use of unfractionated heparin or anti-factor Xa monitoring. METHODS We performed a prospective, single...