Sepsis-associated coagulopathy in onco-hematology patients presenting with thrombocytopenia: a multicentric observational study.

Coagulation disorders increase mortality rate during septic shock, but the impact of concomitant hematological malignancies remains unknown. The study assessed coagulation disorders in onco-hematological patients with thrombocytopenia (<100 G/L) admitted to ICU for septic shock. Among 146 included patients, 50 patients had lymphoma and 49 patients had acute leukemia. ICU mortality rate was 43.8% (n = 64). Median increase in prothrombin time (PT) at day(d) 1 was 4.7 s (IQR 3.2-7.9) in ICU survivors vs. 6.4 s (IQR 4.5-13.7; p < 0.01) in non-survivors. Fibrinogen kinetics (increase in fibrinogen levels between d1 and d2) was +0.55 (-0.22-1.55) vs. +0.10 g/L (-0.40-0.50; p = 0.03) in surviving and non-surviving patients, respectively. PT increase ≥6 s at d1 (OR 5.5; 95% CI 1.1-6.0; p = 0.03) and mechanical ventilation (OR 7.4; 95% CI 3.3-17.7; p < 0.001) were independently associated with ICU mortality. This study provides information and new ways to identify hematological patients with high-risk mortality.