Which patients are at risk for pulmonary embolism (PE) despite therapeutic anticoagulation?

Updated: Sep 18, 2020
  • Author: Daniel R Ouellette, MD, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Even in patients who are fully anticoagulated, however, DVT and pulmonary embolism (PE) can and often do recur. New PE in the hospital can occur in the following patients despite therapeutic anticoagulation:

  • Patients who have nonfloating DVT without PE at presentation (3%)

  • Patients who present with a floating thrombus but have no PE (13%)

  • Patients who present with PE but have no floating thrombus (11%)

  • Patients who present with PE who have a floating thrombus visible at venography (39%)

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