Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis

Abstract Background As the COVID-19 pandemic strains healthcare systems worldwide, finding predictive markers of severe courses remains urgent. Most research so far was limited to selective questions hindering general assumptions for short- and long-term outcome. Methods In this prospective single-c...

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Main Authors: Jan Nikolaus Lieberum, Sandra Kaiser, Johannes Kalbhenn, Hartmut Bürkle, Nils Schallner
Format: Article
Language:English
Published: BMC 2023-01-01
Series:BMC Infectious Diseases
Subjects:
Online Access:https://doi.org/10.1186/s12879-023-07980-z
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author Jan Nikolaus Lieberum
Sandra Kaiser
Johannes Kalbhenn
Hartmut Bürkle
Nils Schallner
author_facet Jan Nikolaus Lieberum
Sandra Kaiser
Johannes Kalbhenn
Hartmut Bürkle
Nils Schallner
author_sort Jan Nikolaus Lieberum
collection DOAJ
description Abstract Background As the COVID-19 pandemic strains healthcare systems worldwide, finding predictive markers of severe courses remains urgent. Most research so far was limited to selective questions hindering general assumptions for short- and long-term outcome. Methods In this prospective single-center biomarker study, 47 blood- and 21 bronchoalveolar lavage (BAL) samples were collected from 47 COVID-19 intensive care unit (ICU) patients upon admission. Expression of inflammatory markers toll-like receptor 3 (TLR3), heme oxygenase-1 (HO-1), interleukin (IL)-6, IL-8, leukocyte counts, procalcitonin (PCT) and carboxyhemoglobin (CO-Hb) was compared to clinical course. Clinical assessment comprised acute local organ damage, acute systemic damage, mortality and outcome after 6 months. Results PCT correlated with acute systemic damage and was the best predictor for quality of life (QoL) after 6 months (r = − 0.4647, p = 0.0338). Systemic TLR3 negatively correlated with impaired lung function (ECMO/ECLS: r = − 0.3810, p = 0.0107) and neurological short- (RASS mean: r = 0.4474, p = 0.0023) and long-term outcome (mRS after 6 m: r = − 0.3184, p = 0.0352). Systemic IL-8 correlated with impaired lung function (ECMO/ECLS: r = 0.3784, p = 0.0161) and neurological involvement (RASS mean: r = − 0.5132, p = 0.0007). IL-6 in BAL correlated better to the clinical course than systemic IL-6. Using three multivariate regression models, we describe prediction models for local and systemic damage as well as QoL. CO-Hb mean and max were associated with higher mortality. Conclusions Our predictive models using the combination of Charlson Comorbidity Index, sex, procalcitonin, systemic TLR3 expression and IL-6 and IL-8 in BAL were able to describe a broad range of clinically relevant outcomes in patients with severe COVID-19-associated ARDS. Using these models might proof useful in risk stratification and predicting disease course in the future. Trial registration The trial was registered with the German Clinical Trials Register (Trial-ID DRKS00021522, registered 22/04/2020).
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spelling doaj.art-a7a8aa0f1dde423eb405e925ebe34e212023-01-15T12:05:19ZengBMCBMC Infectious Diseases1471-23342023-01-0123111610.1186/s12879-023-07980-zPredictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysisJan Nikolaus Lieberum0Sandra Kaiser1Johannes Kalbhenn2Hartmut Bürkle3Nils Schallner4Department of Anesthesiology and Critical Care Medicine, Medical Center, University of FreiburgDepartment of Anesthesiology and Critical Care Medicine, Medical Center, University of FreiburgDepartment of Anesthesiology and Critical Care Medicine, Medical Center, University of FreiburgDepartment of Anesthesiology and Critical Care Medicine, Medical Center, University of FreiburgDepartment of Anesthesiology and Critical Care Medicine, Medical Center, University of FreiburgAbstract Background As the COVID-19 pandemic strains healthcare systems worldwide, finding predictive markers of severe courses remains urgent. Most research so far was limited to selective questions hindering general assumptions for short- and long-term outcome. Methods In this prospective single-center biomarker study, 47 blood- and 21 bronchoalveolar lavage (BAL) samples were collected from 47 COVID-19 intensive care unit (ICU) patients upon admission. Expression of inflammatory markers toll-like receptor 3 (TLR3), heme oxygenase-1 (HO-1), interleukin (IL)-6, IL-8, leukocyte counts, procalcitonin (PCT) and carboxyhemoglobin (CO-Hb) was compared to clinical course. Clinical assessment comprised acute local organ damage, acute systemic damage, mortality and outcome after 6 months. Results PCT correlated with acute systemic damage and was the best predictor for quality of life (QoL) after 6 months (r = − 0.4647, p = 0.0338). Systemic TLR3 negatively correlated with impaired lung function (ECMO/ECLS: r = − 0.3810, p = 0.0107) and neurological short- (RASS mean: r = 0.4474, p = 0.0023) and long-term outcome (mRS after 6 m: r = − 0.3184, p = 0.0352). Systemic IL-8 correlated with impaired lung function (ECMO/ECLS: r = 0.3784, p = 0.0161) and neurological involvement (RASS mean: r = − 0.5132, p = 0.0007). IL-6 in BAL correlated better to the clinical course than systemic IL-6. Using three multivariate regression models, we describe prediction models for local and systemic damage as well as QoL. CO-Hb mean and max were associated with higher mortality. Conclusions Our predictive models using the combination of Charlson Comorbidity Index, sex, procalcitonin, systemic TLR3 expression and IL-6 and IL-8 in BAL were able to describe a broad range of clinically relevant outcomes in patients with severe COVID-19-associated ARDS. Using these models might proof useful in risk stratification and predicting disease course in the future. Trial registration The trial was registered with the German Clinical Trials Register (Trial-ID DRKS00021522, registered 22/04/2020).https://doi.org/10.1186/s12879-023-07980-zCOVID-19ICUTLR3IL-6IL-8Carboxyhemoglobin
spellingShingle Jan Nikolaus Lieberum
Sandra Kaiser
Johannes Kalbhenn
Hartmut Bürkle
Nils Schallner
Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
BMC Infectious Diseases
COVID-19
ICU
TLR3
IL-6
IL-8
Carboxyhemoglobin
title Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
title_full Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
title_fullStr Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
title_full_unstemmed Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
title_short Predictive markers related to local and systemic inflammation in severe COVID-19-associated ARDS: a prospective single-center analysis
title_sort predictive markers related to local and systemic inflammation in severe covid 19 associated ards a prospective single center analysis
topic COVID-19
ICU
TLR3
IL-6
IL-8
Carboxyhemoglobin
url https://doi.org/10.1186/s12879-023-07980-z
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