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Failure of Thrombin-Antithrombin III Complexes in the Diagnosis of Deep Vein ThrombosisClinica Medica , University of Padua, Padua, Italy
Centre for Thrombosis, Haemostasis and Atherosclerosis Research, Academic Medical Centre, Amsterdam, the Netherlands
Clinica Medica , University of Padua, Padua, Italy
Clinica Medica , University of Padua, Padua, Italy
Clinica Medica , University of Padua, Padua, Italy
Clinica Medica , University of Padua, Padua, Italy
Clinica Medica , University of Padua, Padua, Italy Plasma thrombin-antithrombin III (T-AT) complexes are reputed to be an indirect manifestation of thrombin generation, and a role for their determina tion in the diagnosis of deep vein thrombosis (DVT) has been advocated. In order to evaluate the accuracy of T-AT complexes assay for DVT diagnosis, in 166 consecutive outpatients with clinical suspicion of the disease, plasma con centration of T-AT complexes was measured immediately before venography by means of an enzyme-linked immunosorbent assay kit. The result of the T-AT complexes assay was elevated in 29 of the 48 patients with DVT (sensitivity, 60%). The T-AT complexes levels were within the normal range in 104 of the 118 patients with normal venograms (specificity, 88%). The positive and the nega tive predictive value were 67% and 85%, respectively. The authors conclude that the T-AT complexes assay is of little value for the diagnosis of DVT in outpatients.
Angiology, Vol. 43, No. 12,
975-979 (1992) This article has been cited by other articles:
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