Outcomes and predictors of mortality in patients with severe COVID-19 and COPD admitted to ICU: A multicenter study
- PMID: 40412514
- DOI: 10.1016/j.accpm.2025.101558
Outcomes and predictors of mortality in patients with severe COVID-19 and COPD admitted to ICU: A multicenter study
Abstract
Background: High mortality rates among patients with chronic obstructive pulmonary disease (COPD) admitted to intensive care units (ICUs) during the COVID-19 pandemic highlight the need for tailored clinical management strategies.
Study design and methods: Epidemiological, clinical, and laboratory data were collected in REDCap for 6512 patients hospitalized with COVID-19 across 55 Spanish ICUs. Patients were stratified into three groups: those with COPD, those with other chronic respiratory diseases (CRD), and those without respiratory comorbidities (No CRD). The primary outcome was to determine clinical predictors for 90-day mortality, focusing on the COPD group. A propensity score matching (PSM) method was applied to analyze the effects of respiratory support, biomarkers, and immunomarkers.
Results: Patients with COPD (n = 328) exhibited a 50% mortality rate compared to 33% of those with other chronic respiratory diseases (CRD, n = 547), and those without respiratory comorbidities (No CRD, n = 5124). Among COPD patients, 95% of whom had Acute Respiratory Distress Syndrome (ARDS) due to COVID-19, the use of a high-flow nasal cannula (HFNC) was associated with reduced 90-day mortality (hazard ratio: 0.54 (95% Confidence Interval [0.31-0.95]). At a molecular scale, lower IgG levels but higher viral load and TNF-alpha, Vascular Cell Adhesion Molecule-1 (VCAM-1), and Fas Cell Surface Death Receptor (Fas) were associated with mortality in the COPD group.
Conclusions: In COPD patients with ARDS due to COVID-19, the use of HFNC was associated with a better prognosis. The dysregulation in biomarkers and immunomarkers in COPD patients and its association with mortality highlight the need for further targeted therapeutic strategies.
Keywords: Acute respiratory distress syndrome; Biomarkers; Chronic obstructive pulmonary disease; High flow nasal cannulas; Respiratory support.
Copyright © 2025 The Authors. Published by Elsevier Masson SAS.. All rights reserved.
Conflict of interest statement
Declaration of competing interest Fernando Suarez Sipmann received a Research Grant from Air Liquide and received Consultant fees and services Speaker honoraria from Air Liquide and Maquet Critical Care; Jesús Bermejo received consultant fees from Glaxo Smith Klein (GSK) and has a patent planned GSKEP2038314, he also served as advisory board member in the program PROGRAMA PROFARMA, MINISTERIO INDUSTRIA; Jordi Riera served as ECMO consultant for Medtronic and Medical Simulator, received honoraria lecture fees from Gilead (Antifungals) and Werfen (Anticoagulation); José Manuel Gómez received honoraria lecture fees from SEDANA MEDICAL; Nieves Carbonell received honoraria lecture fees from Pfizer; Pablo Vidal received honoraria lecture fees from Pfizer, MSD, AOP Health, Shionogi, Menarini, Gilead and also support for attending meeting from Pfizer, MSD, AOP Health; Ricard Ferrer received consulting fees from Inotrem, Pfizer, Cytosorbent and he received honoraria lecture fees from Shionogi, MSD, Gilead, Menarini and Thermofisher; Antoni Torres received honoraria lecture fees from Pfizer, MSD, BYOVERSIS and PARATEK.
LinkOut - more resources
Full Text Sources
Research Materials
Miscellaneous