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Beware of prosthetic valve thrombosis despite therapeutic anticoagulation


Patients with mechanical heart valves require anticoagulation within carefully controlled ranges to prevent valve thrombosis, a life-threatening condition. The majority of doctors will be required to manage anticoagulation, often on a temporary basis such as during elective procedures. As long-term anticoagulation management moves away from specialised hospital clinics, there needs to be widespread awareness of the complications of sub-therapeutic international normalised ratios (INRs).

  • INR, international normalised ratio
  • PVT, prosthetic valve thrombosis

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    BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine