Plasminogen Activator Inhibitor 1 Promotes a Poor Prognosis in Sepsis-Induced Disseminated Intravascular Coagulation


Sepsis-induced disseminated intravascular coagulation (DIC) is a serious condition because it is closely linked to the development of multiple organ dysfunctions.We compared molecular fibrinolysis markers for 117 patients with sepsis-induced DIC and 1627 patients with nonseptic DIC. Levels of fibrinogen and fibrin degradation products and D-dimer were significantly lower in sepsis-induced DIC cases than in nonseptic DIC cases. In septic DIC cases, plasma plasminogen activator inhibitor 1 (PAI-1) levels were significantly higher than in nonseptic DIC cases. D-dimer levels were negatively correlated with plasma PAI-1 levels in septic DIC cases. Multiple Organ Dysfunction Scores were significantly higher in septic DIC patients with PAI-1 levels >90 ng/mL than in the group with PAI-1 levels <30 ng/mL. The Kaplan-Meier survival functions until 28 days after DIC diagnosis were significantly lower in the group with PAI-1 levels >90 ng/mL than in the other groups. In a multivariate analysis, plasma PAI-1 levels at DIC diagnosis were an independent risk factor for mortality in sepsis-induced DIC (hazard ratio, 1.012; P = .008). These data suggest that plasma PAI-1 plays an important role in sustaining DIC in septic DIC cases and contributes to multiple organ failure and decreased survival in such patients.

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Corresponding authors

Correspondence to Seiji Madoiwa or Shin Nunomiya or Tomoko Ono or Yuichi Shintani or Tsukasa Ohmori or Jun Mimuro or Yoichi Sakata.

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Madoiwa, S., Nunomiya, S., Ono, T. et al. Plasminogen Activator Inhibitor 1 Promotes a Poor Prognosis in Sepsis-Induced Disseminated Intravascular Coagulation. Int J Hematol 84, 398–405 (2006).

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Key words

  • Plasminogen activator inhibitor 1
  • Sepsis
  • Disseminated intravascular coagulation
  • Multiple organ failure Prognosis