Tissue factor in plasma of patients with disseminated intravascular coagulation

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Abstract
Recently it has been shown that tissue factor (TF), an important trigger for initiating blood coagulation, is present in the circulating plasma. In order to assess the clinical implications of TF in plasma, plasma concentration of TF was quantitated in 65 patients with disseminated intravascular coagulation (DIC). The mean concentration of plasma TF was elevated in patients with DIC at presentation as compared with healthy subjects (446 ± SD 536 pg/ml vs. 138 ± 51 pg/ml, P < 0.001). Abnormally high levels were found only in 46.2% of the patients, predominantly in patients with non‐hematological solid tumors and acute leukemia. Plasma TF did not correlate with hemostatic markers of DIC such as thrombinantithrombin III complex, prothrombin fragment 1 + 2, plasmin‐α2‐plasmin inhibitor complex, FDP, D‐dimer, or fibrinogen. Serial determinations of plasma TF demonstrated that plasma TF changes roughly in parallel with the course of DIC in most patients with elevated TF at presentation of DIC. These findings suggest that plasma TF is potentially valuable for monitoring the progress of DIC in a limited population of patients.

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