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Sinnige JS, Filippini DFL, Hagens LA, Heijnen NFL, Schnabel RM, Schultz MJ, Bergmans DCJJ, Bos LDJ, Smit MR. Associations of early changes in lung ultrasound aeration scores and mortality in invasively ventilated patients: a post hoc analysis. Respir Res 2024; 25:268. [PMID: 38978068 PMCID: PMC11232207 DOI: 10.1186/s12931-024-02893-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/26/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Lung ultrasound (LUS) in an emerging technique used in the intensive care unit (ICU). The derivative LUS aeration score has been shown to have associations with mortality in invasively ventilated patients. This study assessed the predictive value of baseline and early changes in LUS aeration scores in critically ill invasively ventilated patients with and without ARDS (Acute Respiratory Distress Syndrome) on 30- and 90-day mortality. METHODS This is a post hoc analysis of a multicenter prospective observational cohort study, which included patients admitted to the ICU with an expected duration of ventilation for at least 24 h. We restricted participation to patients who underwent a 12-region LUS exam at baseline and had the primary endpoint (30-day mortality) available. Logistic regression was used to analyze the primary and secondary endpoints. The analysis was performed for the complete patient cohort and for predefined subgroups (ARDS and no ARDS). RESULTS A total of 442 patients were included, of whom 245 had a second LUS exam. The baseline LUS aeration score was not associated with mortality (1.02 (95% CI: 0.99 - 1.06), p = 0.143). This finding was not different in patients with and in patients without ARDS. Early deterioration of the LUS score was associated with mortality (2.09 (95% CI: 1.01 - 4.3), p = 0.046) in patients without ARDS, but not in patients with ARDS or in the complete patient cohort. CONCLUSION In this cohort of critically ill invasively ventilated patients, the baseline LUS aeration score was not associated with 30- and 90-day mortality. An early change in the LUS aeration score was associated with mortality, but only in patients without ARDS. TRIAL REGISTRATION ClinicalTrials.gov, ID NCT04482621.
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Affiliation(s)
- Jante S Sinnige
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands.
| | - Daan F L Filippini
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
| | - Laura A Hagens
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
| | - Nanon F L Heijnen
- Department of Intensive Care, Maastricht UMC+, Maastricht University, Maastricht, 6229 HX, The Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Ronny M Schnabel
- Department of Intensive Care, Maastricht UMC+, Maastricht University, Maastricht, 6229 HX, The Netherlands
| | - Marcus J Schultz
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
- Mahidol Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, 10400, Thailand
- Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Department of Anesthesia, General Intensive Care and Pain Management, Division of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Medical University of Vienna, Vienna, Austria
- Laboratory of Experimental Intensive Care and Anaesthesiology (L.E.I.C.A.), University of Amsterdam, Amsterdam, 1105 AZ, The Netherlands
| | - Dennis C J J Bergmans
- Department of Intensive Care, Maastricht UMC+, Maastricht University, Maastricht, 6229 HX, The Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Lieuwe D J Bos
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
- Department of Pulmonology, Amsterdam UMC, University of Amsterdam, Amsterdam, 1105 AZ, The Netherlands
- Laboratory of Experimental Intensive Care and Anaesthesiology (L.E.I.C.A.), University of Amsterdam, Amsterdam, 1105 AZ, The Netherlands
| | - Marry R Smit
- Department of Intensive Care, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105 AZ, the Netherlands
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Bos LDJ, Ware LB. Acute respiratory distress syndrome: causes, pathophysiology, and phenotypes. Lancet 2022; 400:1145-1156. [PMID: 36070787 DOI: 10.1016/s0140-6736(22)01485-4] [Citation(s) in RCA: 182] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/14/2022] [Accepted: 07/27/2022] [Indexed: 12/15/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a common clinical syndrome of acute respiratory failure as a result of diffuse lung inflammation and oedema. ARDS can be precipitated by a variety of causes. The pathophysiology of ARDS is complex and involves the activation and dysregulation of multiple overlapping and interacting pathways of injury, inflammation, and coagulation, both in the lung and systemically. Mechanical ventilation can contribute to a cycle of lung injury and inflammation. Resolution of inflammation is a coordinated process that requires downregulation of proinflammatory pathways and upregulation of anti-inflammatory pathways. The heterogeneity of the clinical syndrome, along with its biology, physiology, and radiology, has increasingly been recognised and incorporated into identification of phenotypes. A precision-medicine approach that improves the identification of more homogeneous ARDS phenotypes should lead to an improved understanding of its pathophysiological mechanisms and how they differ from patient to patient.
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Affiliation(s)
- Lieuwe D J Bos
- Intensive Care, Amsterdam UMC-location AMC, University of Amsterdam, Amsterdam, Netherlands
| | - Lorraine B Ware
- Vanderbilt University School of Medicine, Medical Center North, Vanderbilt University, Nashville, TN, USA.
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Bos LDJ, Laffey JG, Ware LB, Heijnen NFL, Sinha P, Patel B, Jabaudon M, Bastarache JA, McAuley DF, Summers C, Calfee CS, Shankar-Hari M. Towards a biological definition of ARDS: are treatable traits the solution? Intensive Care Med Exp 2022; 10:8. [PMID: 35274164 PMCID: PMC8913033 DOI: 10.1186/s40635-022-00435-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/01/2022] [Indexed: 02/07/2023] Open
Abstract
The pathophysiology of acute respiratory distress syndrome (ARDS) includes the accumulation of protein-rich pulmonary edema in the air spaces and interstitial areas of the lung, variable degrees of epithelial injury, variable degrees of endothelial barrier disruption, transmigration of leukocytes, alongside impaired fluid and ion clearance. These pathophysiological features are different between patients contributing to substantial biological heterogeneity. In this context, it is perhaps unsurprising that a wide range of pharmacological interventions targeting these pathophysiological processes have failed to improve patient outcomes. In this manuscript, our goal is to provide a narrative summary of the potential methods to capture the underlying biological heterogeneity of ARDS and discuss how this information could inform future ARDS redefinitions. We discuss what biological tests are available to identify patients with any of the following predominant biological patterns: (1) epithelial and/or endothelial injury, (2) protein rich pulmonary edema and (3) systemic or within lung inflammatory responses.
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Affiliation(s)
- Lieuwe D J Bos
- Intensive Care, Amsterdam UMC, Location AMC, 1105AZ, Amsterdam, The Netherlands.
| | - John G Laffey
- Anaesthesia and Intensive Care Medicine, Galway University Hospitals, National University of Ireland Galway, Galway, Ireland
| | - Lorraine B Ware
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nanon F L Heijnen
- Department of Intensive Care Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Pratik Sinha
- Department of Anesthesiology, School of Medicine, Washington University, St. Louis, USA
| | - Brijesh Patel
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Department of Surgery and Cancer, Imperial College, London, UK
| | - Matthieu Jabaudon
- Department of Perioperative Medicine, CHU Clermont-Ferrand, Clermont-Ferrand, France.,GReD, Université Clermont Auvergne, CNRS, INSERM, Clermont-Ferrand, France
| | - Julie A Bastarache
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Daniel F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Charlotte Summers
- Department of Medicine, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Carolyn S Calfee
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Manu Shankar-Hari
- School of Immunology and Microbial Sciences, King's College London, London, UK.,Centre for Inflammation Research, The University of Edinburgh, Edinburgh, Scotland, UK
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