• Shock · May 2022

    Multicenter Study

    Clinical Characteristics and Outcomes of Neutropenic Sepsis: A Multicenter Cohort Study.

    • Soo Jin Na, Dong Kyu Oh, Sunghoon Park, Yeon Joo Lee, Sang-Bum Hong, Mi-Hyun Park, Ryoung-Eun Ko, Chae-Man Lim, Kyeongman Jeon, and Korean Sepsis Alliance (KSA) Study Group.
    • Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
    • Shock. 2022 May 1; 57 (5): 659-665.

    BackgroundSepsis is a leading cause of mortality in patients with neutropenia; however, data on whether neutropenic sepsis is associated with distinct clinical characteristics and outcomes are limited. Thus, this study was designed to clarify the clinical characteristics and outcomes of patients with neutropenic sepsis compared with those of patients without neutropenic sepsis diagnosed based on the Third International Consensus Definitions for Sepsis and Septic Shock criteria.MethodsWe analyzed data from the Korean Sepsis Alliance, a nationwide prospective multicenter cohort study evaluating the clinical characteristics, management, and outcomes of patients with sepsis from September 2019 to February 2020. Eligible patients were divided into the neutropenic (absolute neutrophil count of less than 1,500/mL) and non- neutropenic groups. The characteristics and outcomes were compared between the two groups.ResultsDuring the study period, 2,074 patients were enrolled from 16 tertiary referral or university-affiliated hospitals. Of them, 218 (10.5%) had neutropenia. The neutropenia group was younger and had a lower proportion of patients with chronic diseases compared with the non-neutropenia group. However, solid tumors (50.0% vs. 34.1%; P  > 0.001) and hematological malignancies (40.8% vs. 3.8%; P  < 0.001) were more common in the neutropenia group. The neutropenia group had a higher incidence of septic shock (43.6% vs. 22.9%; P  < 0.001) and higher Sequential Organ Failure Assessment score (7 vs. 5; P  < 0.001) than the nonneutropenia group. However, no significant differences in microbiologically confirmed infections and its pathogen distribution and the incidence of multidrug resistance were observed between the two groups. The neutropenic group had a higher hospital mortality than the non-neutropenic group (42.2% vs. 26.3%; P  < 0.001), and the Kaplan-Meier survival curve demonstrated a significant difference in survival within 1 week after diagnosing sepsis (log-rank test, P = 0.002). The incidence of adverse events during intensive care unit admission was not different between the two groups. Among hospital survivors, the neutropenic group was more frequently discharged to home (72.2% vs. 57.8%; P = 0.002).ConclusionsNeutropenic sepsis is associated with a higher-grade organ dysfunction during the diagnosis of sepsis and higher mortality without difference in the pathogen isolated.Copyright © 2022 by the Shock Society.

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