Revision of the Japanese Association for Acute Medicine (JAAM) disseminated intravascular coagulation (DIC) diagnostic criteria using antithrombin activity

Background: With advances in the treatment of sepsis, the systemic inflammatory response syndrome (SIRS) has been losing its prognostic power. Since the SIRS category is no longer used for the diagnosis of sepsis, the disseminated intravascular coagulation (DIC) diagnostic criteria released by Japanese Association for Acute Medicine (JAAM) should be modified. Thus, the purpose of this study was to examine the appropriateness of replacing the SIRS score with antithrombin activity in JAAM-DIC diagnostic criteria. Methods: We analyzed data from 819 septic patients who had received recombinant thrombomodulin. The relationships between the 28-day mortality rate and baseline laboratory and clinical parameters were examined using univariate and multivariate analyses, and the impact of replacing the SIRS criteria with antithrombin activity was evaluated. Results: The SIRS score, prothrombin time ratio, and antithrombin activity were associated with the 28-day mortality rate (P values = 0.013, 0.018, and 0.003, respectively, by multivariate analysis). A modified version of the JAAM-DIC diagnostic criteria using an antithrombin activity < 70 % was capable of diagnosing the identical number (n = 706) and a similar severity of patients (mortality, 34.6 % versus 34.8 %). Conclusion: Since anticoagulant therapy is expected to be more effective in patients with more severe coagulation disorders, the modified version of the JAAM-DIC diagnostic criteria might be useful for discriminating patients with sepsis who are good candidates for anticoagulant therapy.