Persistent lymphopaenia in critically ill patients with and without sepsis: An Australian and New Zealand point prevalence study

作者：Derick K. Adigbli, Anthony Devaux, Serena Knowles, M.J. Hardie, Chris Gianacas, Balasubramanian Venkatesh, Naomi Hammond, Simon Finfer · 发表于：Critical Care and Resuscitation · 年份：2026 · DOI：10.1016/j.ccrj.2026.100222 · 研究领域：Inflammatory Biomarkers in Disease Prognosis、Lymphadenopathy Diagnosis and Analysis、Sepsis Diagnosis and Treatment

Objective The aim of this study was to determine the prevalence of persistent lymphopaenia, defined as an absolute lymphocyte count (ALC) < 1.0 × 10 9 /L on both the first and second intensive care unit (ICU) days in patients with sepsis and the association of persistent lymphopaenia with advanced organ support. Design, setting, and participants A prospective, multicentre, binational point prevalence study of adult patients treated in participating ICUs in June 2023 was conducted. Main outcome measures Main outcome measures included prevalence of persistent lymphopaenia in patients with sepsis versus those without sepsis, hospital and ICU mortality, length of stay, and organ support patterns. Results Among 829 adult patients in 59 ICUs, 307 (37%) had persistent lymphopaenia, and 338 (40.8%) met sepsis criteria. Persistent lymphopaenia was associated with greater illness severity (mean Acute Physiology and Chronic Health Evaluation II score: 19.4 vs. 16.8, p < 0.001). Persistent lymphopaenia was more common in patients with sepsis than in those without sepsis (44.7% vs. 31.8%, p < 0.001); this difference remained after adjusting for predefined covariates (odds ratio: 1.51, 95% confidence interval: 1.12–2.03, p = 0.008). For patients with sepsis and persistent lymphopaenia, there was a 6% increase in mortality compared to those without lymphopaenia, although this did not reach statistical significance. For patients without sepsis, hospital length of stay was 16.5 days in those ...