What is the recommended duration of anticoagulation for a provoked pulmonary embolism?

What is the recommended duration of anticoagulation for a provoked pulmonary embolism?

• A. 1 month
• B. 6 months
• C. 12 months
• D. 3 months

Answer: (D)

Provoked pulmonary embolism is best treated with a finite course of anticoagulation because the clot was triggered by a temporary risk factor that is likely to resolve. The standard duration for this scenario is three months. This length adequately treats the clot while balancing bleeding risk, and if the provoking factor has resolved, the recurrence risk after stopping anticoagulation is relatively low. If the provoking factor persists (for example, active cancer) or if the event is unprovoked, longer or indefinite therapy may be considered after weighing risks and benefits.

Provoked pulmonary embolism is best treated with a finite course of anticoagulation because the clot was triggered by a temporary risk factor that is likely to resolve. The standard duration for this scenario is three months. This length adequately treats the clot while balancing bleeding risk, and if the provoking factor has resolved, the recurrence risk after stopping anticoagulation is relatively low. If the provoking factor persists (for example, active cancer) or if the event is unprovoked, longer or indefinite therapy may be considered after weighing risks and benefits.