D-dimer testing reduced the need for ultrasonographic imaging in outpatients with suspected deep venous thrombosis

May 2004
ACP Journal Club;May/Jun2004, Vol. 140 Issue 3, p67
Academic Journal
This article presents a study, to determine the use of D-dimer testing safely reduce the need for venous ultrasonographic imaging and rule out deep venous thrombosis (DVT) on the day of presentation, in outpatients with suspected DVT. 1096 outpatients, who had suspected lower-extremity DVT, were taken for the study. Exclusion criteria included refusal or inability to consent, geographic inaccessibility, symptom resolution for greater than 72 hours, suspected pulmonary embolism, life expectancy 48 hours, pregnancy, and age. The overall prevalence of DVT or pulmonary embolism was 15.7% during follow-up. The groups did not differ for rate of proximal DVT or pulmonary embolism in patients in whom DVT had initially been ruled out.


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