• Hillary R Mount, Megan Rich, and Michael S Putnam.
• University of Cincinnati College of Medicine, Cincinnati, OH, USA.
• Am Fam Physician. 2022 Apr 1; 105 (4): 377-385.

AbstractVenous thromboembolism (VTE) recurrence rates are three times higher in patients with chronic or no risk factors compared with those who have transient risk factors after stopping anticoagulation therapy. In patients with unprovoked VTE, age-appropriate screening is sufficient evaluation for occult malignancy. Thrombophilia evaluation should be considered only in selected patients because routine evaluation has not been shown to improve outcomes. Patients with VTE should receive three months of anticoagulation therapy. The context of the initial VTE, risk of bleeding and recurrence, and patient preference should be considered when determining whether to continue treatment beyond the initial three months. There is growing evidence regarding the use of risk assessment models to determine risk of recurrence, but this has not been incorporated into guidelines. All pregnant patients with a prior VTE should receive postpartum prophylaxis for six weeks. Antepartum prophylaxis should be used in pregnant people with a history of unprovoked or hormonally induced VTE. High-risk patients undergoing surgery may require extended VTE prophylaxis postoperatively.

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