Introduction
Upper extremity deep vein thrombosis accounts for 4-10% of cases of deep vein thrombosis but the management of such cases can be problematic as the event is objectively confirmed in only 13–30% of symptomatic subjects.
A clinical decision rule combined with D-dimer testing has been developed to allow the risk stratification of patients with a suspected UEDVT and in individuals with a low score, to avoid imaging.
The Constans Clinical Decision Score uses 4 variables to risk stratify patients with a suspected UEDVT. The score was designed by a multivariate logistic regression analysis of
a sample of patients hospitalized for suspicion of UEDVT and then subsequently validated in subsequent studies.
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Constans Clinical Decision Score.