A Clearinghouse for Information about Blood Clots (DVT/)PE) and Clotting Disorders (thrombophilia) provided as a public service by the University of North Carolina Blood Research Center

List of posts


  • Stephan Moll, MD writes (last updated: Sept 9th, 2020)… Background:  Hospitalized patients with COVID-19 are at increased risk for thrombosis – DVT, PE, and may be pulmonary micro-vascular thrombosis that possibly contributes to respiratory failure; arterial events appear to occur less commonly. Scientific/clinical data on prevalence of thrombosis, best prevention, and optimal therapy are limited.

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  • Stephan Moll, MD writes (on 12/5/2014)… Venous thromboembolism (VTE) prophylaxis in hospitalized patients is important; it is also mandated by the Joint Commission [ref].  We have developed at the University of North Carolina (UNC) a guidance document (link here; UNC VTE prophylaxis guidance document) as a resource for our health care professionals to assist in

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  • Stephan Moll, MD writes (on Nov 7th, 2014)… A N Engl J Med publication this week [ref 1] reports on a new reversal agent (PER977 = Aripazine = ciraparantag) that may be effective against a number of different new oral anticoagulants.

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  • Stephan Moll, MD writes…  Is there a dose change or limitation for the use of Xarelto® (rivaroxaban) in very obese or underweight patients?

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  • Stephan Moll, MD writes… Aspirin is beneficial in preventing recurrent venous thromboembolism (VTE) in patients who have had a previous episode of unprovoked VTE and who have been treated with anticoagulant therapy, a publication in the journal Circulation re-confirms this week: Aspirin reduces the risk of recurrent VTE by more than a third without significantly increasing the risk

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  • Stephan Moll, MD writes…  Apixaban (Eliquis®) was approved by the FDA this week (Aug 21, 2014) for the treatment of DVT and PE.  The approval covers (a) acute DVT/PE management and (b) prevention of recurrent DVT/PE.

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  • Beth Waldron, Clot Connect program director writes… Background:  Anticoagulant and anti-platelet drugs increase bleeding risk.  Patients taking these drugs are typically advised to avoid activities which might cause increased bleeding, bruising or trauma. Acupuncture involves the insertion of thin needles through the skin at strategic points along the body. These needles are very thin, much

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  • Stephan Moll, MD writes… Interesting study: Are commercial airline pilots at increased risk of venous thromboembolism (VTE) [ref 1]?  One might think so, as air travel is an established, although only weak, risk factor for VTE [ref 2,3].  This study found, however, that the risk of VTE is NOT increased in airline pilots.

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  • Beth Waldron, Clot Connect Program Director writes…. The physical consequences of thromboembolism (VTE) [=deep vein thrombosis DVT and pulmonary embolism PE] have been extensively reported in the medical literature.  Less documented has been the emotional impact of VTE on patients. This lack of formal study is notable given the extensive research on the psychological impact

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  • Stephan Moll, MD writes…  Today the FDA approved Pradaxa (dabigatran) for the treatment of venous thromboembolism, based on the phase 3 RECOVER and RECOVER II trials.  The dose is 150 mg twice daily for patients with a GFR > 30 ml/min.  Due to the design of the RECOVER and RECOVER II trials, the drug is approved

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  • Stephan Moll, MD writes… A recent NEJM study (ref 1) examined whether the risk for thrombosis in women persists beyond the first 6 weeks after delivery.  It found that an increased risk persists for at least 3 months after delivery, although the absolute risk was low after the first 6 weeks.  This is of clinical

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