Time Course of Septic Shock in Immunocompromised and Nonimmunocompromised Patients

Objectives: To address the impact of underlying immune conditions on the course of septic shock with respect to both mortality and the development of acute infectious and noninfectious complications. Design: An 8-year (2008–2015) monocenter retrospective study. Setting: A medical ICU in a tertiary care center. Patients: Patients diagnosed for septic shock within the first 48 hours of ICU admission were included. Patients were classified in four subgroups with respect to their immune status: nonimmunocompromised and immunocompromised distributed into hematologic or solid malignancies and nonmalignant immunosuppression. Outcomes were in-hospital death and the development of ischemic and hemorrhagic complications and ICU-acquired infections. The determinants of death and complications were addressed by multivariate competing risk analysis. Interventions: None. Measurements and Main Results: Eight hundred one patients were included. Among them, 305 (38%) were immunocompromised, distributed into solid tumors (122), hematologic malignancies (106), and nonmalignant immunosuppression (77). The overall 3-day, in-ICU, and in-hospital mortality rates were 14.1%, 37.3%, and 41.3%, respectively. Patients with solid tumors displayed increased in-hospital mortality (cause-specific hazard, 2.20 [95% CI, 1.64–2.96]; p

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