In a collaborative study involving six laboratories in the USA, Europe, and India the molecular weight distributions of a panel of heparin sodium samples were determined, in order to compare heparin sodium of bovine intestinal origin with that of bovine lung and porcine intestinal origin. Porcine samples met the current criteria as laid out in the USP Heparin Sodium monograph. Bovine lung hepar...

The need for prophylaxis against venous thromboembolic disease following lower-extremity joint replacement is well documented and accepted. Although low molecular weight heparin is approved for inpatient and extended prophylaxis beyond the hospital environment, orthopedic surgeons must determine the duration of injectable low molecular weight heparin based on the period of venous thromboembolic...

A 66-year-old woman presented with painful abdominal skin necrosis where she had been injecting subcutaneous enoxaparin 1 week following elective knee arthroplasty (Figure). Her complete blood cell count and basic metabolic panel yielded unremarkable findings. Enoxaparin was discontinued, a direct thrombin inhibitor started. Heparin platelet factor 4 IgG antibody strongly positive (2.065 OD), a...

Heparin with high anticoagulant activity (activated partial thromboplastin time of 347 +/- 56.4 and anti-Xa activity of 317 +/- 48.3) was isolated from the marine clam species Tapes phylippinarum in an amount of approximately 2.1 mg/g dry animals. Agarose-gel electrophoresis showed a high content of the slow-moving heparin component (22 +/- 6.8%) and 78 +/- 5.4% of the fast-moving species. An a...

background necrosis of skin flaps is considered as an important complication in reconstructive surgery. we conducted an experimental study to investigate the efficacy of low-molecular weight heparin, clopidogrel and their combination to improve the flap survival. methods forty male, adult sprague-dawlay rats were divided randomly into 4 groups. standard rectangular, distally based dorsal random...

Unfractionated heparin and low-molecular-weight heparins are commonly used as thromboprophylaxis for hospitalized patients. Though generally considered safe at prophylactic doses, cases of catastrophic hemorrhage have been reported. The proposed mechanism involves bioaccumulation of heparin through saturation of the rapid-elimination pathway in its metabolism. We present an unusual case of an a...

heparin- induced thrombocytopenia (hit) is an antibody mediated adverse effect of heparin therapy which is classified into two subtypes, hit i which is non-immune, spontaneously reversible thrombocytopenia and; hit ii which is an autoimmune-mediated adverse effect of heparin therapy. in this case report, we described a 65-year old male patient with hit ii after coronary artery bypass grafting. ...

BACKGROUND The purpose of this study was to stratify plastic surgery patients into venous thromboembolism risk categories; identify patients at highest risk for venous thromboembolism; and quantify rates of postoperative all-cause mortality, venous thromboembolism, and hematoma/bleeding on different forms of thromboprophylaxis. Furthermore, this study aimed to determine the compliance and avera...