Q; 44 years old male is admitted to ICU with shortness of breath and diagnosed having a pulmonary embolism. Patient has a healthy lifestyle and no risk factors are identified. The patient responded well to intravenous heparin without any tendency to bleeding. Workup till discharge from ICU remained negative except proximal lower extremity deep venous thrombosis (DVT). Hematology service declared it as an "unprovoked DVT". The patient will require anticoagulation for?
A) 3 months
B) 6 months
C) 12 months
E) Till discharge from hospital
The estimated risk of recurrence following stopping of anticoagulation in patients with a first unprovoked episode of proximal DVT or PE is 10 percent at twelve months and 30 percent at five years. Full anticoagulation reduces the risk of recurrence by 90 percent. In a healthy patient who has no risk for an increased bleed, benefit of anticoagulation outweighs the risk of bleeding.
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