• Thromb. Haemost. · Jul 2017

    Low plasma FVII:C and activated FVII as predictive markers for overt disseminated intravascular coagulation.

    • Surapong Lertthammakiat, Nattachai Anantasit, Usanarat Anurathapan, Nongnuch Sirachainan, Praguywan Kadegasem, and Ampaiwan Chuansumrit.
    • Prof. Ampaiwan Chuansumrit, MD, Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi District, Bangkok 10400, Thailand, Tel.: +66 2 201 1749, Fax: +66 2 201 1748, E-mail: ampaiwan.jua@mahidol.ac.th.
    • Thromb. Haemost. 2017 Jul 26; 117 (8): 1471-1477.

    AbstractIn sepsis, binding of factor VII (FVII:C) and activated factor VII (FVIIa) with tissue factor is the key step of coagulation resulting in disseminated intravascular coagulation (DIC). We conducted a prospective cohort study among 47 septic patients, aged 8 months to 18.8 years. They were initially divided into three groups of no DIC (n=27), non-overt DIC (n=14) and overt DIC (n=6). Blood samples were collected at 0, 24 and 48 hours (h) after the onset of sepsis. At the onset of sepsis, FVII:C tended to be lower in the non-overt DIC [median 57 % (interquartile range [IQR] 41-80)] and overt DIC groups [33 % (23-52)] than that in the no DIC group [65 % (44-87)]. Whereas FVIIa tended to be lower in the overt DIC group [1.29 % (0.50-4.19)] than those in the non-overt DIC [3.01 % (1.01-5.24)] and no DIC groups [2.49 % (1.14-3.13)]. At 24 h, FVII:C was significantly lower in the non-overt DIC [57 % (41-101)] and overt DIC groups [31 % (28-49)] than that in the no DIC group [83 % (70-102)]. While FVIIa was significantly lower in the overt DIC group [2.15 % (0.86-3.96)] than that in the no DIC group [3.83 % (2.90-5.46)]. Using FVII:C <65 % or FVIIa <3 % at 24 h among patients without hepatic dysfunction to determine overt DIC at 24 h, the sensitivity was 83.9 % and 77.4 %, respectively, and the specificity was both 83.3 %. Patients with low FVII:C and low FVIIa at 24 h after the onset of sepsis had a 20.8-fold (95 % confidence interval [CI], 2.0-213.0, p=0.010) and 14.4-fold (95 %CI, 1.5-142.4, p=0.023) chance of overt DIC.

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