Article révisé par les pairs
Résumé : Purpose: Hyperbilirubinemia is frequent in patients with hematological malignancies admitted to the intensive care unit (ICU). Literature about hepatic dysfunction (HD) in this context is scarce. Methods: We investigated the prognostic impact of HD analyzing a prospective multicenter cohort of 893 critically ill hematology patients. Two groups were defined: patients with HD (total bilirubin ≥33 μmol/L at ICU admission) and patients without HD. Results: Twenty one percent of patients were found to have HD at ICU admission. Cyclosporine, antimicrobials before ICU admission, abdominal symptoms, ascites, history of liver disease, neutropenia, increased serum creatinine and myeloma were independently associated with HD. Etiology remained undetermined in 73% of patients. Hospital mortality was 56.3% and 36.3% respectively in patients with and without HD (p < 0.0001). Prognostic factors independently associated with hospital mortality in HD group were, performance status >1 (OR = 2.07, 95% CI = 1.49–2.87, p < 0.0001), invasive mechanical ventilation (OR = 3.92, 95% CI = 2.69–5.71, p < 0.0001), renal replacement therapy (OR = 1.74, 95% CI = 1.22–2.47, p = 0.002), vasoactive drug (OR = 1.81, 95% CI = 1.21–2.71, p = 0.004) and SOFA score without bilirubin level at ICU admission (OR = 1.09, 95% CI = 1.04–1.14, p < 0.0001). Conclusions: HD is common, underestimated, infrequently investigated, and is associated with impaired outcome in critically ill hematology patients. HD should be considered upon ICU admission and managed as other organ dysfunctions.

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