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Prediction rule
Low failure rate reported of diagnosis algorithm for suspected upper extremity deep vein thrombosis
  1. Aurelien Delluc,
  2. Philip S Wells
  1. Ottawa Health Research Institute, University of Ottawa, Ottawa, Ontario, Canada
  1. Correspondence to : Dr Philip S Wells, Department of Medicine, Ottawa Hospital, 501 Smyth Road, Ottawa, Ontario, Canada K1H8L6; pwells{at}

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Upper extremity deep vein thrombosis (UEDVT) is an infrequent type of venous thromboembolism with an estimated incidence of 0.4–1 case per 10 000 persons.1 UEDVT may cause pulmonary embolism but this risk is lower than with lower extremity DVT. Accurate ruling out of UEDVT is mandatory in order to avert unnecessary exposure to anticoagulation therapy. Unlike DVT of the lower limbs or pulmonary embolism, there is no validated diagnostic algorithm combining clinical probability assessment, D-dimer testing and compression ultrasonography to rule out UEDVT.2 ,3


This was a multicentre study evaluating a diagnostic algorithm …

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  • Competing interests None.

  • Provenance and peer review Commissioned; internally peer reviewed.