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Kwon J, Coimbra R. Fat embolism syndrome after trauma: What you need to know. J Trauma Acute Care Surg 2024; 97:505-513. [PMID: 39213184 DOI: 10.1097/ta.0000000000004434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
ABSTRACT Fat embolism syndrome refers to a systemic condition caused by the circulation of fat droplets in the bloodstream, reaching various target organs typically after major bone fractures or related surgical procedures. Although most cases resolve spontaneously, severe instances can lead to significant respiratory failure, neurological damage, and even mortality. Therefore, appropriate prevention, timely diagnosis, and management are crucial for trauma patients at risk. The objective of this review article is to explore the definition, epidemiology, risk factors, clinical presentation, and pathophysiology of fat embolism syndrome. Furthermore, it aims to examine current recommendations for the accurate diagnosis, prevention, and treatment of it, providing a comprehensive guide for the effective management of patients prone to this condition.
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Affiliation(s)
- Junsik Kwon
- From the Division of Trauma Surgery, Department of Surgery (J.K.), Ajou University School of Medicine, Suwon, Korea; Division of Trauma and Acute Care Surgery (R.C.), Riverside University Health System Medical Center, Moreno Valley; Department of Surgery, Loma Linda University School of Medicine (R.C.), Loma Linda; and Comparative Effectiveness and Clinical Outcomes Research Center (J.K., R.C.), Riverside University Health System Medical Center, Moreno Valley, California
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2
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Zhang P, Liu B, Zhang S, Chang X, Zhang L, Gu D, Zheng X, Chen J, Xiao S, Wu Z, Cai X, Long M, Lu W, Zheng M, Chen R, Gao R, Zheng Y, Wu J, Feng Q, He G, Chen Y, Zheng W, Zuo W, Huang Y, Zhang X. Clinical application of targeted next-generation sequencing in severe pneumonia: a retrospective review. Crit Care 2024; 28:225. [PMID: 38978111 PMCID: PMC11232260 DOI: 10.1186/s13054-024-05009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/27/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND The precise identification of the underlying causes of infectious diseases, such as severe pneumonia, is essential, and the development of next-generation sequencing (NGS) has enhanced the effectiveness of pathogen detection. However, there is limited information on the systematic assessment of the clinical use of targeted next-generation sequencing (tNGS) in cases of severe pneumonia. METHODS A retrospective analysis was conducted on 130 patients with severe pneumonia treated in the ICU from June 2022 to June 2023. The consistency of the results of tNGS, metagenomics next-generation sequencing (mNGS), and culture with the clinical diagnosis was evaluated. Additionally, the results for pathogens detected by tNGS were compared with those of culture, mNGS, and quantitative reverse transcription PCR (RT-qPCR). To evaluate the efficacy of monitoring severe pneumonia, five patients with complicated infections were selected for tNGS microbiological surveillance. The tNGS and culture drug sensitisation results were then compared. RESULTS The tNGS results for the analysis of the 130 patients showed a concordance rate of over 70% with clinical diagnostic results. The detection of pathogenic microorganisms using tNGS was in agreement with the results of culture, mNGS, and RT-qPCR. Furthermore, the tNGS results for pathogens in the five patients monitored for complicated infections of severe pneumonia were consistent with the culture and imaging test results during treatment. The tNGS drug resistance results were in line with the drug sensitivity results in approximately 65% of the cases. CONCLUSIONS The application of tNGS highlights its promise and significance in assessing the effectiveness of clinical interventions and providing guidance for anti-infection therapies for severe pneumonia.
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Affiliation(s)
- Peng Zhang
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Baoyi Liu
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Shuang Zhang
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Xuefei Chang
- Department of Respiratory and Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Lihe Zhang
- Department of Respiratory and Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Dejian Gu
- Geneplus-Beijing Institute, Beijing, 102206, China
| | - Xin Zheng
- Geneplus-Beijing Institute, Beijing, 102206, China
| | - Jiaqing Chen
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Saiyin Xiao
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Zhentao Wu
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Xuemin Cai
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Mingfa Long
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Wenjie Lu
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Mingzhu Zheng
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China
| | | | - Rui Gao
- Geneplus-Beijing Institute, Beijing, 102206, China
| | - Yan Zheng
- Department of Research and Development, Guangdong Research Institute of Genetic Diagnostic and Engineering Technologies for Thalassemia, Hybribio Limited, Guangzhou, 510000, China
| | - Jinhua Wu
- Department of Clinical Laboratory, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Qiujuan Feng
- Department of Clinical Laboratory, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Gang He
- Department of Infectious Diseases, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Yantang Chen
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Weihao Zheng
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China
| | - Wanli Zuo
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China.
- Department of Respiratory and Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China.
| | - Yanming Huang
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China.
- Department of Respiratory and Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, 529030, China.
| | - Xin Zhang
- Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, 529030, China.
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, 523808, China.
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Xu H, Sheng S, Luo W, Xu X, Zhang Z. Acute respiratory distress syndrome heterogeneity and the septic ARDS subgroup. Front Immunol 2023; 14:1277161. [PMID: 38035100 PMCID: PMC10682474 DOI: 10.3389/fimmu.2023.1277161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is an acute diffuse inflammatory lung injury characterized by the damage of alveolar epithelial cells and pulmonary capillary endothelial cells. It is mainly manifested by non-cardiogenic pulmonary edema, resulting from intrapulmonary and extrapulmonary risk factors. ARDS is often accompanied by immune system disturbance, both locally in the lungs and systemically. As a common heterogeneous disease in critical care medicine, researchers are often faced with the failure of clinical trials. Latent class analysis had been used to compensate for poor outcomes and found that targeted treatment after subgrouping contribute to ARDS therapy. The subphenotype of ARDS caused by sepsis has garnered attention due to its refractory nature and detrimental consequences. Sepsis stands as the most predominant extrapulmonary cause of ARDS, accounting for approximately 32% of ARDS cases. Studies indicate that sepsis-induced ARDS tends to be more severe than ARDS caused by other factors, leading to poorer prognosis and higher mortality rate. This comprehensive review delves into the immunological mechanisms of sepsis-ARDS, the heterogeneity of ARDS and existing research on targeted treatments, aiming to providing mechanism understanding and exploring ideas for accurate treatment of ARDS or sepsis-ARDS.
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Affiliation(s)
- Huikang Xu
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shiying Sheng
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Weiwei Luo
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaofang Xu
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhaocai Zhang
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of the Diagnosis and Treatment for Severe Trauma and Burn of Zhejiang Province, Hangzhou, China
- Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China
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Otto M, Kropp Y, Jäger E, Neumaier M, Thiel M, Quintel M, Tsagogiorgas C. The Use of an Inspiration-Synchronized Vibrating Mesh Nebulizer for Prolonged Inhalative Iloprost Administration in Mechanically Ventilated Patients-An In Vitro Model. Pharmaceutics 2023; 15:2080. [PMID: 37631294 PMCID: PMC10458390 DOI: 10.3390/pharmaceutics15082080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Mechanically ventilated patients suffering from acute respiratory distress syndrome (ARDS) frequently receive aerosolized iloprost. Because of prostacyclin's short half-life, prolonged inhalative administration might improve its clinical efficacy. But, this is technically challenging. A solution might be the use of inspiration-synchronized vibrating mesh nebulizers (VMNsyn), which achieve high drug deposition rates while showing prolonged nebulization times. However, there are no data comparing prolonged to bolus iloprost nebulization using a continuous vibrating mesh nebulizer (VMNcont) and investigating the effects of different ventilation modes on inspiration-synchronized nebulization. Therefore, in an in vitro model of mechanically ventilated adults, a VMNsyn and a VMNcont were compared in volume-controlled (VC-CMV) and pressure-controlled continuous mandatory ventilation (PC-CMV) regarding iloprost deposition rate and nebulization time. During VC-CMV, the deposition rate of the VMNsyn was comparable to the rate obtained with the VMNcont, but 10.9% lower during PC-CMV. The aerosol output of the VMNsyn during both ventilation modes was significantly lower compared to the VMNcont, leading to a 7.5 times longer nebulization time during VC-CMV and only to a 4.2 times longer nebulization time during PC-CMV. Inspiration-synchronized nebulization during VC-CMV mode therefore seems to be the most suitable for prolonged inhalative iloprost administration in mechanically ventilated patients.
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Affiliation(s)
- Matthias Otto
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68165 Mannheim, Germany
| | - Yannik Kropp
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68165 Mannheim, Germany
| | - Evelyn Jäger
- Institute for Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68167 Mannheim, Germany
| | - Michael Neumaier
- Institute for Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68167 Mannheim, Germany
| | - Manfred Thiel
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68165 Mannheim, Germany
| | - Michael Quintel
- Department of Anaesthesiology, Emergency and Intensive Care Medicine, University of Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany
- Department of Anaesthesiology, DONAUISAR Klinikum Deggendorf, Perlasberger Str. 41, 94469 Deggendorf, Germany
| | - Charalambos Tsagogiorgas
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1–3, 68165 Mannheim, Germany
- Department of Anaesthesiology and Critical Care Medicine, St. Elisabethen Hospital Frankfurt, Ginnheimer Straße 3, 60487 Frankfurt am Main, Germany
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Capellier G, Barrot L, Winizewski H. Oxygenation target in acute respiratory distress syndrome. JOURNAL OF INTENSIVE MEDICINE 2023:S2667-100X(23)00022-1. [PMID: 37362867 PMCID: PMC10181914 DOI: 10.1016/j.jointm.2023.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/01/2023] [Accepted: 03/22/2023] [Indexed: 06/28/2023]
Abstract
Determining oxygenation targets in acute respiratory distress syndrome (ARDS) remains a challenge. Although oxygenation targets have been used since ARDS was first described, they have not been investigated in detail. However, recent retrospective and prospective trials have evaluated the optimal oxygenation threshold in patients admitted to the general intensive care unit. In view of the lack of prospective data, clinicians continue to rely on data from the few available trials to identify the optimal oxygenation strategy. Assessment of the cost-benefit ratio of the fraction of inspired oxygen (FiO2) to the partial pressure of oxygen in the arterial blood (PaO2) is an additional challenge. A high FiO2 has been found to be responsible for respiratory failure and deaths in numerous animal models. Low and high PaO2 values have also been demonstrated to be potential risk factors in experimental and clinical situations. The findings from this literature review suggest that PaO2 values ranging between 80 mmHg and 90 mmHg are acceptable in patients with ARDS. The costs of rescue maneuvers needed to reach these targets have been discussed. Several recent papers have highlighted the risk of disagreement between arterial oxygen saturation (SaO2) and peripheral oxygen saturation (SpO2) values. In order to avoid discrepancies and hidden hypoxemia, SpO2 readings need to be compared with those of SaO2. Higher SpO2 values may be needed to achieve the recommended PaO2 and SaO2 values.
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Affiliation(s)
- Gilles Capellier
- Réanimation Médicale, CHU Jean Minjoz, Besançon 25000, France
- Department of Health, Monash University, Melbourne 3800, Australia
- Equipe d'accueil EA 3920, Université de Franche Comte, Besançon 25000, France
| | - Loic Barrot
- Réanimation Médicale, CHU Jean Minjoz, Besançon 25000, France
- Département d'Anesthésie-Réanimation, CHU Jan Minjoz, Besançon 25000, France
| | - Hadrien Winizewski
- Réanimation Médicale, CHU Jean Minjoz, Besançon 25000, France
- Equipe d'accueil EA 3920, Université de Franche Comte, Besançon 25000, France
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Jochheim L, Jochheim D, Habenicht L, Herner A, Ulrich J, Wiessner J, Heilmaier M, Rasch S, Schmid RM, Lahmer T, Mayr U. Adjunctive Hydrocortisone Improves Hemodynamics in Critically Ill Patients with Septic Shock: An Observational Study Using Transpulmonary Thermodilution. J Intensive Care Med 2023:8850666231160664. [PMID: 36872888 DOI: 10.1177/08850666231160664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Introduction: Septic shock is associated with high mortality and hemodynamic impairment. The use of corticoids is a common therapeutic tool in critically ill patients. However, data on the mechanisms and prognostic ability of hemodynamic improvement by adjunctive steroids are rare. This study primarily aimed to evaluate short-term effects of hydrocortisone therapy on catecholamine requirement and hemodynamics derived from transpulmonary thermodilution (TPTD) in 30 critically ill patients with septic shock and a 28 days mortality rate of 50%. Methods: Hydrocortisone was administered with an intravenous bolus of 200 mg, followed by a continuous infusion of 200 mg per 24 h. Hemodynamic assessment was performed immediately before as well as 2, 8, 16, and 24 h after the initiation of corticoids. For primary endpoint analysis, we evaluated the impact of hydrocortisone on vasopressor dependency index (VDI) and cardiac power index (CPI). Results: Adjunctive hydrocortisone induced significant decreases of VDI from 0.41 (0.29-0.49) mmHg-1 at baseline to 0.35 (0.25-0.46) after 2 h (P < .001), 0.24 (0.12-0.35) after 8 h (P < .001), 0.18 (0.09-0.24) after 16 h (P < .001) and 0.11 (0.06-0.20) mmHg-1 after 24 h (P < .001). In parallel, we found an improvement in CPI from 0.63 (0.50-0.83) W/m2 at baseline to 0.68 (0.54-0.85) after 2 h (P = .208), 0.71 (0.60-0.90) after 8 h (P = .033), 0.82 (0.6-0.98) after 16 h (P = .004) and 0.90 (0.67-1.07) W/m2 after 24 h (P < .001). Our analyses revealed a significant reduction in noradrenaline requirement in parallel with a moderate increase in mean arterial pressure, systemic vascular resistance index, and cardiac index. As a secondary endpoint, our results showed a significant decrease in lung water parameters. Moreover, changes in CPI (ΔCPI) and VDI (ΔVDI) after 24 h of hydrocortisone therapy revealed accurate prognostic ability to predict 28 days mortality (AUC = 0.802 vs 0.769). Conclusion: Adjunctive hydrocortisone leads to a rapid decrease in catecholamine requirement and a substantial circulatory improvement in critically ill patients with septic shock.
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Affiliation(s)
- Leonie Jochheim
- Klinik für Gastroenterologie und Hepatologie, Uniklinikum Essen, Essen, Germany
| | - David Jochheim
- Medizinisches Versorgungszentrum MVZ Jochheim Medizin, Hattingen, Germany
| | - Livia Habenicht
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Alexander Herner
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Jörg Ulrich
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Johannes Wiessner
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Markus Heilmaier
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Sebastian Rasch
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - R M Schmid
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - T Lahmer
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Ulrich Mayr
- 156004Medizinische Klinik und Poliklinik II, Klinikum rechts der Isar, Technische Universität München, München, Germany
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Wang Z, Zhang L, Huang T, Yang R, Cheng H, Wang H, Yin H, Lyu J. Developing an explainable machine learning model to predict the mechanical ventilation duration of patients with ARDS in intensive care units. Heart Lung 2023; 58:74-81. [PMID: 36423504 PMCID: PMC9678346 DOI: 10.1016/j.hrtlng.2022.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/25/2022] [Accepted: 11/11/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is common in intensive care units with high mortality rate and mechanical ventilation (MV) is the most important related treatment. Early prediction of MV duration has benefit for patients risk stratification and care strategies support. OBJECTIVE To develop an explainable model for predicting mechanical ventilation (MV) duration in patients with ARDS using the machine learning (ML) approach. METHOD The number of 1,148, 1,697, and 29 ARDS patients admitted to intensive care units (ICU) in the MIMIC-IV, eICU-CRD, and AmsterdamUMCdb databases were included in the study. Features at MV initiation from the MIMIC-IV dataset were used to train prediction models based on seven supervised machine learning algorithms. After 5-fold cross-validation for hyperparameters tuning, the hyperparameters- optimized model of different algorithms was tested by external datasets extracted from eICU-CRD and Amsterdamumcdb. Finally, three descriptive machine learning explanation methods were conducted for the model explanation. RESULT The XGBoosting model showed the most stable and accurate performance among two testing datasets (RMSE= 5.57 and 5.46 days in eICU-CRD and AmsterdamUMCdb) and was selected as the optimal model. The model explanation based on SHAP, LIME, and DALEX results showed a consistent result, vasopressor, PH, and SOFA score had the highest effect on MV duration prediction. CONCLUSION ML models with features at MV initiation can accurate predict MV duration in patients with ARDS in ICUs. Among seven algorithms, XGB models showed the best performance (RMSE= 5.57 and 5.46 in two external datasets). LIME, SHAP, and Breakdown methods showed good performance as AXI methods.
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Affiliation(s)
- Zichen Wang
- Department of Intensive Care Unit, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China; Department of Public Health, University of California, Irvine, Irvine, California, United State
| | - Luming Zhang
- Department of Intensive Care Unit, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China; Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Tao Huang
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Rui Yang
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China; School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Hongtao Cheng
- School of Nursing, Jinan University, Guangzhou, China
| | - Hao Wang
- Department of Statistics, Iowa State University, Ames, Iowa, Unite States
| | - Haiyan Yin
- Department of Intensive Care Unit, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.
| | - Jun Lyu
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China; Guangdong Provincial Key Laboratory of Traditional Chinese Medicine Informatization, Guangzhou, Guangdong, China.
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Blot PL, DE Roquetaillade C, Deniau B, Gaugain S, Kindermans M, Julian N, LE Dorze M, Mebazaa A, Chousterman BG, Barthélémy R. Efficacy of almitrine as a rescue therapy for refractory hypoxemia in COVID and non-COVID acute respiratory distress syndrome. A retrospective monocenter study. Minerva Anestesiol 2023; 89:157-165. [PMID: 36287391 DOI: 10.23736/s0375-9393.22.16736-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Almitrine, a drug enhancing hypoxic pulmonary vasoconstriction, has been proposed as a rescue therapy for refractory hypoxemia in COVID related acute respiratory distress syndrome (C-ARDS). We aimed at investigating the response to almitrine depending on the cause of ARDS (COVID vs. non-COVID). METHODS Monocenter retrospective study from 2014 to 2021. All patients diagnosed with moderate to severe ARDS and treated with almitrine as rescue therapy for refractory hypoxemia were studied. Factor independently associated with oxygenation response to almitrine infusion were determined. RESULTS Sixty patients with ARDS and treated with almitrine were analyzed, 36 (60%) due to SARS-CoV-2 infection and 24 (40%) due to other causes. Baseline PaO2/FiO2 was 78 [61-101] mmHg, 76% had at least one prone positioning before the start of almitrine infusion. Median PaO2/FiO2 increased by +38 [7-142] mmHg (+61% [10-151]) after almitrine infusion. PaO2/FiO2 increased by +134 [12-186] mmHg in non-COVID ARDS (NC-ARDS) and by +19 [8-87] mmHg in C-ARDS. The increase in PaO2/FiO2 was lower in C-ARDS than in NC-ARDS (P=0.013). In multivariable analysis, C-ARDS, non-invasive ventilation and concomitant use of norepinephrine were independently associated with a decreased oxygenation response to almitrine infusion. CONCLUSIONS Our study reports a highly variable response to almitrine infusion in ARDS patients with refractory hypoxemia. Independent factors associated with a reduced oxygenation response to almitrine infusion were: COVID ARDS, concomitant use of norepinephrine, and non-invasive ventilatory strategy.
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Affiliation(s)
- Pierre-Louis Blot
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Charles DE Roquetaillade
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Benjamin Deniau
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Samuel Gaugain
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France
| | - Manuel Kindermans
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Nathan Julian
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Matthieu LE Dorze
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Alexandre Mebazaa
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Benjamin G Chousterman
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France.,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
| | - Romain Barthélémy
- Department of Anesthesia and Critical Care, Lariboisière Hospital, Paris, France - .,Université Paris-Cité, Inserm UMRS 942 Mascot, Paris, France
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Lei L, Xu C, Dong X, Ma B, Chen Y, Hao Q, Zhao C, Liu H. Continuous Glucose Monitoring in Hypoxic Environments Based on Water Splitting-Assisted Electrocatalysis. CHEMOSENSORS 2023; 11:149. [DOI: 10.3390/chemosensors11020149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Conventional enzyme-based continuous glucose sensors in interstitial fluid usually rely on dissolved oxygen as the electron-transfer mediator to bring electrons from oxidase to electrode while generating hydrogen peroxide. This may lead to several problems. First, the sensor may provide biased detection results owing to fluctuation of oxygen in interstitial fluid. Second, the polymer coatings that regulate the glucose/oxygen ratio can affect the dynamic response of the sensor. Third, the glucose oxidation reaction continuously produces corrosive hydrogen peroxide, which may compromise the long-term stability of the sensor. Here, we introduce an oxygen-independent nonenzymatic glucose sensor based on water splitting-assisted electrocatalysis for continuous glucose monitoring. For the water splitting reaction (i.e., hydrogen evolution reaction), a negative pretreatment potential is applied to produce a localized alkaline condition at the surface of the working electrode for subsequent nonenzymatic electrocatalytic oxidation of glucose. The reaction process does not require the participation of oxygen; therefore, the problems caused by oxygen can be avoided. The nonenzymatic sensor exhibits acceptable sensitivity, reliability, and biocompatibility for continuous glucose monitoring in hypoxic environments, as shown by the in vitro and in vivo measurements. Therefore, we believe that it is a promising technique for continuous glucose monitoring, especially for clinically hypoxic patients.
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Affiliation(s)
- Lanjie Lei
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Chengtao Xu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xing Dong
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Biao Ma
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yichen Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Qing Hao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Chao Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Hong Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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Frailty and hyperactive delirium in hospitalized older patients with COVID-19: an insight from GeroCovid registry. Aging Clin Exp Res 2023; 35:433-442. [PMID: 36600029 PMCID: PMC9812736 DOI: 10.1007/s40520-022-02328-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/13/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Delirium is an acute neuropsychiatric condition associated with unfavourable outcomes, frequent in older hospitalized people. In the context of the SARS-CoV-2 pandemic, few studies have specifically focused on the inflammatory status of older, frail patients with hyperactive delirium (HD) hospitalized for COVID-19. AIM To identify biological correlates of HD at hospital admission and to assess the independent effect of delirium and physical frailty on in-hospital mortality. METHODS Data were retrospectively extracted by the multicenter registry GeroCovid Observational Study. Individuals aged ≥ 60 years were included if the information on the presence of HD, frailty based on the modified Fried criteria and inflammatory status had been collected. The risk of mortality was evaluated using a Kaplan-Meier estimator, according to frailty and delirium. Logistic and restricted cubic-spline regressions were employed to assess the relationship between inflammatory markers and HD. RESULTS Three-hundred-thirty-seven older adults were included in the analysis [mean age (SD) 77.1 (9.5) years, 50.1% females], and 11.5% presented with HD. A significant association of both PaO2/FiO2 ratio (p = 0.015) and serum lactate dehydrogenase (p = 0.04) with delirium was observed. By Cox multivariable regression, frail and non-frail patients with HD had a 4.42 and 2.85 higher mortality risk compared with non-frail, non-delirious patients. CONCLUSIONS Hyperactive delirium at hospital admission is related with markers of lung failure among older adults, especially when physical frailty coexists. Delirium is associated with increased in-hospital mortality risk, which is doubled by the coexistence of physical frailty.
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Yin X, Büyüktahtakın IE, Patel BP. COVID-19: Data-Driven optimal allocation of ventilator supply under uncertainty and risk. EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 2023; 304:255-275. [PMID: 34866765 PMCID: PMC8632406 DOI: 10.1016/j.ejor.2021.11.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 11/26/2021] [Indexed: 05/06/2023]
Abstract
This study presents a new risk-averse multi-stage stochastic epidemics-ventilator-logistics compartmental model to address the resource allocation challenges of mitigating COVID-19. This epidemiological logistics model involves the uncertainty of untested asymptomatic infections and incorporates short-term human migration. Disease transmission is also forecasted through a new formulation of transmission rates that evolve over space and time with respect to various non-pharmaceutical interventions, such as wearing masks, social distancing, and lockdown. The proposed multi-stage stochastic model overviews different scenarios on the number of asymptomatic individuals while optimizing the distribution of resources, such as ventilators, to minimize the total expected number of newly infected and deceased people. The Conditional Value at Risk (CVaR) is also incorporated into the multi-stage mean-risk model to allow for a trade-off between the weighted expected loss due to the outbreak and the expected risks associated with experiencing disastrous pandemic scenarios. We apply our multi-stage mean-risk epidemics-ventilator-logistics model to the case of controlling COVID-19 in highly-impacted counties of New York and New Jersey. We calibrate, validate, and test our model using actual infection, population, and migration data. We also define a new region-based sub-problem and bounds on the problem and then show their computational benefits in terms of the optimality and relaxation gaps. The computational results indicate that short-term migration influences the transmission of the disease significantly. The optimal number of ventilators allocated to each region depends on various factors, including the number of initial infections, disease transmission rates, initial ICU capacity, the population of a geographical location, and the availability of ventilator supply. Our data-driven modeling framework can be adapted to study the disease transmission dynamics and logistics of other similar epidemics and pandemics.
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Affiliation(s)
- Xuecheng Yin
- Yale School of Public Health, New Haven, CT, United States
| | - I Esra Büyüktahtakın
- Systems Optimization and Data Analytics Lab (SODAL), Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Bhumi P Patel
- Systems Optimization and Data Analytics Lab (SODAL), Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ, United States
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12
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Muacevic A, Adler JR, Karanjkar SM, Bhagwani RS. The Impact of Pulmonary Rehabilitation in a Case of Acute Respiratory Distress Syndrome With Bronchopneumonia: A Case Report. Cureus 2022; 14:e32671. [PMID: 36686089 PMCID: PMC9848687 DOI: 10.7759/cureus.32671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Inhaled bacteria and viruses could cause pneumonia (from the Greek word pneuma, which means "breath"), which is an infection and inflammation of the bronchioles and alveoli in the lower respiratory tract that can be fatal. The condition's typical symptoms include excruciating chest pain and a persistent cough that produces thick mucus. Of patients in emergency medicine units around the world, 10% have acute respiratory distress syndrome (ARDS). A 35-year-old male patient stated having a fever for 12 days, a cough with expectoration for two days, and trouble breathing at rest when he arrived at the medical emergency unit. Following the examination, blood investigation, urine examination, and X-ray were done suggestive of bronchopneumonia and acute respiratory distress syndrome. The patient was assessed using a range of outcome measures on the assessment day, and the same variables were again assessed on the discharge and follow-up days. These outcome measures showed significant reduction in the severity of the cough and dyspnea. Also, the patient had markedly improved cough intensity, dyspnea (Modified Medical Research Council {MMRC}, grade 2), lung capacity, weakness, and quality of life (QoL) because of our well-organized pulmonary rehabilitation. It is safe to assume that a thorough strategy like ours will lead to an improvement in the patient's respiratory health.
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13
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Zhang W, Zhang Y, Liu Q, Nie Y, Zhu X. Development and validation of a prognostic nomogram for decompensated liver cirrhosis. World J Clin Cases 2022; 10:10467-10477. [PMID: 36312496 PMCID: PMC9602236 DOI: 10.12998/wjcc.v10.i29.10467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Decompensated liver cirrhosis (DLC) is a stage in the progression of liver cirrhosis and has a high mortality.
AIM To establish and validate a novel and simple-to-use predictive nomogram for evaluating the prognosis of DLC patients.
METHODS A total of 493 patients with confirmed DLC were enrolled from The First Affiliated Hospital of Nanchang University (Nanchang, Jiangxi Province, China) between December 2013 and August 2019. The patients were divided into two groups: a derivation group (n = 329) and a validation group (n = 164). Univariate and multivariate Cox regression analyses were performed to assess prognostic factors. The performance of the nomogram was determined by its calibration, discrimination, and clinical usefulness.
RESULTS Age, mechanical ventilation application, model for end-stage liver disease (MELD) score, mean arterial blood pressure, and arterial oxygen partial pressure/inhaled oxygen concentration were used to construct the model. The C-indexes of the nomogram in the derivation and validation groups were 0.780 (95%CI: 0.670-0.889) and 0.792 (95%CI: 0.698-0.886), respectively. The calibration curve exhibited good consistency with the actual observation curve in both sets. In addition, decision curve analysis indicated that our nomogram was useful in clinical practice.
CONCLUSION A simple-to-use novel nomogram based on a large Asian cohort was established and validated and exhibited improved performance compared with the Child-Turcotte-Pugh and MELD scores. For patients with DLC, the proposed nomogram may be helpful in guiding clinicians in treatment allocation and may assist in prognosis prediction.
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Affiliation(s)
- Wang Zhang
- Department of Gastroenterology, Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Yue Zhang
- Department of Gastroenterology, Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Qi Liu
- Department of Gastroenterology, Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Yuan Nie
- Department of Gastroenterology, Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Xuan Zhu
- Department of Gastroenterology, Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
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14
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Ding L, Chen Y, Su N, Xu X, Yin J, Qiu J, Wang J, Zheng D. Comparison of acute respiratory distress syndrome in patients with COVID-19 and influenza A (H7N9) virus infection. Int J Infect Dis 2022; 122:593-598. [PMID: 35793755 PMCID: PMC9250702 DOI: 10.1016/j.ijid.2022.06.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES We aimed to compared the clinical features of acute respiratory distress syndrome (ARDS) induced by COVID-19 and H7N9 virus infections. METHODS Clinical data of 100 patients with COVID-19 and 46 patients with H7N9 were retrospectively analyzed. RESULTS Elevated inflammatory indices and coagulation disorders were more common in COVID-19-ARDS group than in the H7N9-ARDS group. The median interval from illness onset to ARDS development was shorter in H7N9-ARDS. The PaO2/FiO2 level was lower in H7N9-ARDS, whereas the Sepsis-related Organ Failure Assessment score was higher in COVID-19-ARDS. The proportion of patients with disseminated intravascular coagulation and liver injury in COVID-19-ARDS and H7N9-ARDS was 45.5% versus 3.1% and 28.8% versus 50%, respectively (P <0.05). The mean interval from illness onset to death was shorter in H7N9-ARDS. A total of 59.1% patients with H7N9-ARDS died of refractory hypoxemia compared with 28.9% with COVID-19-ARDS (P = 0.014). Patients with COVID-19-ARDS were more likely to die of septic shock and multiple organ dysfunction compared with H7N9-ARDS (71.2% vs 36.4%, P = 0.005). CONCLUSION Patients with H7N9 were more susceptible to develop severe ARDS and showed a more acute disease course. COVID-19-ARDS was associated with severe inflammatory response and coagulation dysfunction, whereas liver injury was more common in H7N9-ARDS. The main causes of death between patients with the two diseases were different.
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Affiliation(s)
- Ling Ding
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China
| | - Yikun Chen
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Nan Su
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China
| | - Xizhen Xu
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jingping Yin
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China
| | - Jun Qiu
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China
| | - Jiajia Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China,Corresponding author: Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Address: Pinghai Road No. 899, Suzhou 215000, China, Phone: +86-51267972108; fax: +86-51267972108
| | - Dong Zheng
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China,Corresponding author: Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Address: Pinghai Road No. 899, Suzhou 215000, China, Phone: +86-51267973327; fax: +86-51267973327
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15
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Di Mascio N, Clarke S, de Loughry G, Altaf W. Prone positioning for mechanically ventilated patients with coronavirus disease 2019: the experience of an Irish regional hospital intensive care unit. Ir J Med Sci 2022:10.1007/s11845-022-03085-9. [PMID: 35819744 PMCID: PMC9274965 DOI: 10.1007/s11845-022-03085-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 12/04/2022]
Abstract
Background The benefits of prone positioning in acute respiratory distress syndrome (ARDS) have been known for many years. While some controversy exists regarding whether coronavirus disease 2019 (COVID-19) pneumonia should be treated with the same therapeutic strategies as for non-COVID ARDS, the Surviving Sepsis Campaign still provide a weak recommendation to utilise prone positioning in this setting. Aims The aims of this study are to ascertain if prone positioning improves oxygenation significantly in mechanically ventilated patients with severe COVID-19 ARDS and to describe the feasibility of frequent prone positioning in an Irish regional hospital intensive care unit (ICU) with limited prior experience. Methods In this retrospective, observational cohort study, we investigate if the PaO2/FiO2 ratio and ventilatory ratio improve during and following prone positioning, and whether this improvement correlates with patient baseline characteristics or survival. Results Between March 2020 and 2021, 12 patients underwent prone positioning while mechanically ventilated for severe COVID ARDS. Sixty-six percent were male, mean age 60.9 (± 10.5), mean BMI 33.5 (± 6.74) and median APACHE II score on admission to ICU was 10.5 (7.25–16.3). Further, 83% were proned within 24 h of being intubated due to refractory hypoxaemia. PaO2/FiO2 ratio improved from 11.6 kPa (9.80–13.8) to 15.80 kPa (13.1–19.6) while prone, p < 0.0001. Conclusions We found prone positioning to be a safe method of significantly improving oxygenation in mechanically ventilated patients with severe COVID-19 ARDS. We did not find a relationship between patient baseline characteristics nor illness severity and degree of PaO2/FiO2 ratio improvement, nor did we find a relationship between degree of PaO2/FiO2 ratio improvement and survival. Supplementary Information The online version contains supplementary material available at 10.1007/s11845-022-03085-9.
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Affiliation(s)
- Nicholas Di Mascio
- Department of Anaesthesia, University Hospital Waterford, Dunmore Road, Co Waterford, X91 ER8E, Ireland.
| | - Siobhan Clarke
- Department of Anaesthesia, University Hospital Waterford, Dunmore Road, Co Waterford, X91 ER8E, Ireland
| | - Gillian de Loughry
- Department of Anaesthesia, University Hospital Waterford, Dunmore Road, Co Waterford, X91 ER8E, Ireland
| | - Wahid Altaf
- Department of Anaesthesia, University Hospital Waterford, Dunmore Road, Co Waterford, X91 ER8E, Ireland
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16
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Zhang P, Liu B, Zheng W, Chen Y, Wu Z, Lu Y, Ma J, Lu W, Zheng M, Wu W, Meng Z, Wu J, Zheng Y, Zhang X, Zhang S, Huang Y. Pulmonary Microbial Composition in Sepsis-Induced Acute Respiratory Distress Syndrome. Front Mol Biosci 2022; 9:862570. [PMID: 35813824 PMCID: PMC9262094 DOI: 10.3389/fmolb.2022.862570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/03/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Acute respiratory distress syndrome (ARDS) is an unresolved challenge in the field of respiratory and critical care, and the changes in the lung microbiome during the development of ARDS and their clinical diagnostic value remain unclear. This study aimed to explore the role of the lung microbiome in disease progression in patients with sepsis-induced ARDS and potential therapeutic targets.Methods: Patients with ARDS were divided into two groups according to the initial site of infection, intrapulmonary infection (ARDSp, 111 cases) and extrapulmonary infection (ARDSexp, 45 cases), and a total of 28 patients with mild pulmonary infections were enrolled as the control group. In this study, we sequenced the DNA in the bronchoalveolar lavage fluid collected from patients using metagenomic next-generation sequencing (mNGS) to analyze the changes in the lung microbiome in patients with different infectious site and prognosis and before and after antibiotic treatment.Results: The Shannon–Wiener index indicated a statistically significant reduction in microbial diversity in the ARDSp group compared with the ARDSexp and control groups. The ARDSp group was characterized by a reduction in microbiome diversity, mainly in the normal microbes of the lung, whereas the ARDSexp group was characterized by an increase in microbiome diversity, mainly in conditionally pathogenic bacteria and intestinal microbes. Further analysis showed that an increase in Bilophila is a potential risk factor for death in ARDSexp. An increase in Escherichia coli, Staphylococcus aureus, Candida albicans, enteric microbes, or conditional pathogens may be risk factors for death in ARDSp. In contrast, Hydrobacter may be a protective factor in ARDSp.Conclusion: Different initial sites of infection and prognoses are likely to affect the composition and diversity of the pulmonary microbiome in patients with septic ARDS. This study provides insights into disease development and exploration of potential therapeutic targets.
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Affiliation(s)
- Peng Zhang
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Baoyi Liu
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
| | - Weihao Zheng
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Yantang Chen
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Zhentao Wu
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Yuting Lu
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Jie Ma
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
| | - Wenjie Lu
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
| | - Mingzhu Zheng
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
| | - Wanting Wu
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
| | - Zijie Meng
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
| | - Jinhua Wu
- Department of Clinical Laboratory, Jiangmen Central Hospital, Jiangmen, China
| | - Yan Zheng
- Department of Research and Development, Guangdong Research Institute of Genetic Diagnostic and Engineering Technologies for Thalassemia, Hybribio Limited, Guangzhou, China
| | - Xin Zhang
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
- Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
- Collaborative Innovation Center for Antitumor Active Substance Research and Development, Guangdong Medical University, Zhanjiang, China
- *Correspondence: Xin Zhang, ; Shuang Zhang, ; Yanming Huang,
| | - Shuang Zhang
- Department of Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
- *Correspondence: Xin Zhang, ; Shuang Zhang, ; Yanming Huang,
| | - Yanming Huang
- Clinical Experimental Center, Jiangmen Key Laboratory of Clinical Biobanks and Translational Research, Jiangmen Central Hospital, Jiangmen, China
- Department of Respiratory and Critical Care Medicine, Jiangmen Central Hospital, Jiangmen, China
- *Correspondence: Xin Zhang, ; Shuang Zhang, ; Yanming Huang,
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17
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Relying on pulse oximetry to avoid hypoxaemia and hyperoxia: A multicentre prospective cohort study in patients with circulatory failure. Aust Crit Care 2022; 36:307-312. [PMID: 35581045 DOI: 10.1016/j.aucc.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/06/2022] [Accepted: 03/18/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The purpose of this study was to assess the predictive performance of pulse oximetry (SpO2) to rule out hypoxaemia and hyperoxia in critically ill patients. METHODS SpO2, arterial oxygenation (SaO2), and arterial partial pressure of oxygen (PaO2) were prospectively and simultaneously measured every 6 h during the first 24 h of intensive care unit admission in a multicentre cohort of critically ill patients suffering acute circulatory failure. Likelihood ratios associated with different cutoff values of SpO2 to rule out hypoxaemia (SaO2 < 90% or PaO2 < 60 mmHg) or hyperoxia (SaO2 > 95% or PaO2 > 100 mmHg) and post-test probabilities were calculated. Mean bias between SpO2 and SaO2 and agreement interval were calculated. Area under the receiver operating characteristics associated with SpO2 to predict different threshold values of SaO2 and PaO2 were calculated. RESULTS Five hundred seventy-one patients (mean [standard deviation] Simplified Acute Physiology Score II: 58.7 [20.1]; mechanically ventilated 75.6%) with 2643 available SaO2 and PaO2 samples and corresponding 2643 SpO2 values were analysed. Mean bias between SpO2 and SaO2 was 1.1%, and its agreement interval ranged from -8.2 to +11.1%. SpO2 cutoff values of 88%, 90%, and 92% left the possibility that 8%-13% of patients had hypoxaemia. SpO2 < 95% left the possibility that 31% of patients had hyperoxia. All calculated areas under the receiver operating characteristics showed a lower limit of their 95% confidence interval below 0.85 CONCLUSION: In this cohort of patients with circulatory failure, SpO2 had poor discriminative ability to rule out hypoxaemia and hyperoxia. Overconfidence upon SpO2 monitoring may be dangerous.
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Self-proning in Nonintubated Patients with Coronavirus Disease 2019. CLIN NURSE SPEC 2022. [PMCID: PMC8985542 DOI: 10.1097/nur.0000000000000670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Jabaudon M, Neto AS. Open the lungs, keep them open and… take a break? Anaesth Crit Care Pain Med 2022; 41:101057. [PMID: 35523479 PMCID: PMC9062598 DOI: 10.1016/j.accpm.2022.101057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthieu Jabaudon
- Inserm, Department of Perioperative Medicine, GReD, CNRS, CHU de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France.
| | - Ary Serpa Neto
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Intensive Care and Data Analytics Research and Evaluation (DARE) Centre, Department of Critical Care, Melbourne Medical School, Monash University, University of Melbourne, Austin Hospital, Melbourne, VIC, Australia; Department of Intensive Care, Austin Hospital, Melbourne, Australia; Honorary Senior Clinical Fellow, Department of Critical Care, University of Melbourne, Melbourne, Australia; Department of Critical Care Medicine, Hospital Israelita Albert-Einstein, São Pãulo, Brazil
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20
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Donina ZA. Causes of Hypoxemia in COVID-19. J EVOL BIOCHEM PHYS+ 2022; 58:73-80. [PMID: 35283538 PMCID: PMC8897613 DOI: 10.1134/s0022093022010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 11/23/2022]
Abstract
The global pandemic of a new coronavirus disease (COVID-19)
has posed challenges to public health specialists around the world
associated with diagnosis, intensive study of epidemiological and
clinical features of the coronavirus infection, development of preventive
approaches, therapeutic strategies and rehabilitation measures.
However, despite the successes achieved in the study of COVID-19
pathogenesis, many aspects that aggravate the severity of the disease
and cause high mortality of patients remain unclear. The main clinical
manifestation of the new variant of SARS-CoV-2 virus infection is
pneumonia with massive parenchymal lesions of lung tissue, diffuse alveolar
damage, thrombotic manifestations, disruption of ventilation-perfusion
relationships, etc. However, symptoms in patients hospitalized with
COVID pneumonia show a broad diversity: the majority has minimal
manifestations, others develop severe respiratory failure complicated
by acute respiratory distress syndrome (ARDS) with rapidly progressing
hypoxemia that leads to high mortality. Numerous clinical data publications
report that some COVID pneumonia patients without subjective signs
of severe respiratory failure (dyspnea, “air hunger”) have an extremely
low saturation level. As a result, there arises a paradoxical condition
(called “silent hypoxia” or even “happy hypoxia”) contradicting
the very basics of physiology, as it essentially represents a severe life-incompatible
hypoxemia which lacks respiratory discomfort. All this raises numerous
questions among professionals and has already ignited a discussion
in scientific publications concerned with the pathogenesis of COVID-19.
Respiratory failure is a complex clinical problem, many aspects
of which remain controversial. However, according to the majority
of authors, one of the first objective indicators of the clinical
sign of respiratory failure are hypoxemia-associated changes in external
respiration. This review addresses some possible causes of hypoxemia
in COVID-19.
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Affiliation(s)
- Zh. A. Donina
- Pavlov Institute of Physiology,
Russian Academy of Sciences, St. Petersburg, Russia
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21
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Wang R, Qi B, Zhang X, Meng L, Wu X. Prophetic values of lung ultrasound score on post-extubation distress in patients with acute respiratory distress syndrome. Eur J Med Res 2022; 27:27. [PMID: 35193686 PMCID: PMC8864851 DOI: 10.1186/s40001-022-00652-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 02/07/2022] [Indexed: 11/10/2022] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) has been a prevalent disease in ICU with mortality of up to 27–45%. A considerable proportion of extubated ARDS patients passing spontaneous breathing trial (SBT) still requires reintubation. Methods Lung ultrasonography (LUS) was used to predict the success rate of extubation. Ninety-two patients passing the 60-min SBT were included in this prospective research. Their clinical characters including LUS, APACHE II, SOFA, CPIS, EVLWI and PaO2/FiO2 were collected before the SBT. Another two LUS assessments were performed at the end of and 4 h after SBT. LUS results were evaluated and scored by two independent experts, and the correlations of LUS scores, APACHE-II scores, SOFA scores, CPIS and EVLWI with the success rate of extubation and rate of reintubation were analyzed. Results Failed weaning and reintubation of ARDS patients were correlated with higher LUS scores both before and after SBT. Post-extubation distress was correlated with higher APACHE-II scores, SOFA scores, CPIS and EVLWI before SBT. There were positive correlations between the LUS score and APACHE-II score, SOFA score, CPIS and EVLWI before SBT, respectively. Conclusion LUS score measured at the end of 60-min SBT could be used to predict post-extubation distress in ARDS patients.
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Affiliation(s)
- Ran Wang
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - Benquan Qi
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - Xiaohua Zhang
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - Liang Meng
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - Xiaofei Wu
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China.
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Lee JWW, Chiew YS, Wang X, Mat Nor MB, Chase JG, Desaive T. Stochastic integrated model-based protocol for volume-controlled ventilation setting. Biomed Eng Online 2022; 21:13. [PMID: 35148759 PMCID: PMC8832735 DOI: 10.1186/s12938-022-00981-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/21/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Mechanical ventilation (MV) is the primary form of care for respiratory failure patients. MV settings are based on general clinical guidelines, intuition, and experience. This approach is not patient-specific and patients may thus experience suboptimal, potentially harmful MV care. This study presents the Stochastic integrated VENT (SiVENT) protocol which combines model-based approaches of the VENT protocol from previous works, with stochastic modelling to take the variation of patient respiratory elastance over time into consideration. METHODS A stochastic model of Ers is integrated into the VENT protocol from previous works to develop the SiVENT protocol, to account for both intra- and inter-patient variability. A cohort of 20 virtual MV patients based on retrospective patient data are used to validate the performance of this method for volume-controlled (VC) ventilation. A performance evaluation was conducted where the SiVENT and VENT protocols were implemented in 1080 instances each to compare the two protocols and evaluate the difference in reduction of possible MV settings achieved by each. RESULTS From an initial number of 189,000 possible MV setting combinations, the VENT protocol reduced this number to a median of 10,612, achieving a reduction of 94.4% across the cohort. With the integration of the stochastic model component, the SiVENT protocol reduced this number from 189,000 to a median of 9329, achieving a reduction of 95.1% across the cohort. The SiVENT protocol reduces the number of possible combinations provided to the user by more than 1000 combinations as compared to the VENT protocol. CONCLUSIONS Adding a stochastic model component into a model-based approach to selecting MV settings improves the ability of a decision support system to recommend patient-specific MV settings. It specifically considers inter- and intra-patient variability in respiratory elastance and eliminates potentially harmful settings based on clinically recommended pressure thresholds. Clinical input and local protocols can further reduce the number of safe setting combinations. The results for the SiVENT protocol justify further investigation of its prediction accuracy and clinical validation trials.
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Affiliation(s)
- Jay Wing Wai Lee
- School of Engineering, Monash University Malaysia, Subang Jaya, Selangor Malaysia
| | - Yeong Shiong Chiew
- School of Engineering, Monash University Malaysia, Subang Jaya, Selangor Malaysia
| | - Xin Wang
- School of Engineering, Monash University Malaysia, Subang Jaya, Selangor Malaysia
| | - Mohd Basri Mat Nor
- Kulliyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - J. Geoffrey Chase
- Center of Bioengineering, University of Canterbury, Christchurch, New Zealand
| | - Thomas Desaive
- GIGA In-Silico Medicine, University of Liege, Liege, Belgium
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23
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Gao X, Zou X, Li R, Shu H, Yu Y, Yang X, Shang Y. Application of POCUS in patients with COVID-19 for acute respiratory distress syndrome management: a narrative review. BMC Pulm Med 2022; 22:52. [PMID: 35123448 PMCID: PMC8817642 DOI: 10.1186/s12890-022-01841-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/24/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19 has inflicted the world for over two years. The recent mutant virus strains pose greater challenges to disease prevention and treatment. COVID-19 can cause acute respiratory distress syndrome (ARDS) and extrapulmonary injury. Dynamic monitoring of each patient's condition is necessary to timely tailor treatments, improve prognosis and reduce mortality. Point-of-care ultrasound (POCUS) is broadly used in patients with ARDS. POCUS is recommended to be performed regularly in COVID-19 patients for respiratory failure management. In this review, we summarized the ultrasound characteristics of COVID-19 patients, mainly focusing on lung ultrasound and echocardiography. Furthermore, we also provided the experience of using POCUS to manage COVID-19-related ARDS.
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24
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Lee JWW, Chiew YS, Wang X, Tan CP, Mat Nor MB, Cove ME, Damanhuri NS, Chase JG. Protocol conception for safe selection of mechanical ventilation settings for respiratory failure Patients. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 214:106577. [PMID: 34936946 DOI: 10.1016/j.cmpb.2021.106577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/17/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Mechanical ventilation is the primary form of care provided to respiratory failure patients. Limited guidelines and conflicting results from major clinical trials means selection of mechanical ventilation settings relies heavily on clinician experience and intuition. Determining optimal mechanical ventilation settings is therefore difficult, where non-optimal mechanical ventilation can be deleterious. To overcome these difficulties, this research proposes a model-based method to manage the wide range of possible mechanical ventilation settings, while also considering patient-specific conditions and responses. METHODS This study shows the design and development of the "VENT" protocol, which integrates the single compartment linear lung model with clinical recommendations from landmark studies, to aid clinical decision-making in selecting mechanical ventilation settings. Using retrospective breath data from a cohort of 24 patients, 3,566 and 2,447 clinically implemented VC and PC settings were extracted respectively. Using this data, a VENT protocol application case study and clinical comparison is performed, and the prediction accuracy of the VENT protocol is validated against actual measured outcomes of pressure and volume. RESULTS The study shows the VENT protocols' potential use in narrowing an overwhelming number of possible mechanical ventilation setting combinations by up to 99.9%. The comparison with retrospective clinical data showed that only 33% and 45% of clinician settings were approved by the VENT protocol. The unapproved settings were mainly due to exceeding clinical recommended settings. When utilising the single compartment model in the VENT protocol for forecasting peak pressures and tidal volumes, median [IQR] prediction error values of 0.75 [0.31 - 1.83] cmH2O and 0.55 [0.19 - 1.20] mL/kg were obtained. CONCLUSIONS Comparing the proposed protocol with retrospective clinically implemented settings shows the protocol can prevent harmful mechanical ventilation setting combinations for which clinicians would be otherwise unaware. The VENT protocol warrants a more detailed clinical study to validate its potential usefulness in a clinical setting.
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Affiliation(s)
- Jay Wing Wai Lee
- School of Engineering, Monash University Malaysia, Selangor, Malaysia.
| | | | - Xin Wang
- School of Engineering, Monash University Malaysia, Selangor, Malaysia
| | - Chee Pin Tan
- School of Engineering, Monash University Malaysia, Selangor, Malaysia
| | - Mohd Basri Mat Nor
- Kulliyah of Medicine, International Islamic University Malaysia, Pahang, Malaysia
| | - Matthew E Cove
- Division of Respiratory and Critical Care Medicine, Department of Medicine, National University Health System, Singapore
| | - Nor Salwa Damanhuri
- Faculty of Electrical Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, Malaysia
| | - J Geoffrey Chase
- Center of Bioengineering, University of Canterbury, Christchurch, New Zealand
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25
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Ambrose A, Detelich J, Weinmann M, Hammond FL. Evaluation of a Pneumatic Vest to Treat Symptoms of ARDS Caused by COVID-19. J Med Device 2021. [DOI: 10.1115/1.4053387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Abstract
Critical care patients who experience symptoms of acute respiratory distress syndrome are commonly placed on mechanical ventilators to increase the oxygen provided to their pulmonary systems and monitor their condition. With the pulmonary inflammation typically accompanying ARDS, patients can experience lower ventilation-perfusion ratios resulting in lower blood oxygenation. In these cases, patients are typically rotated into a prone position to facilitate improved blood flow to portions of the lung that were not previously participating in the gas exchange process. However, proning a patient increases the risk of complications, requires up to seven hospital staff members to carry out, and does not guarantee an improvement in the patient's condition. The low-cost vest presented here was designed to reproduce the effects of proning while also requiring less hospital staff than the proning process. Additionally, the V/Q Vest helps hospital staff predict whether patients would respond well to a proning treatment. A pilot study was conducted on nine patients with ARDS from Coronavirus disease 2019 (COVID-19). The average increase in oxygenation with the V/Q Vest treatment for all patients was 19.7 ± 38.1%. Six of the nine patients responded positively to the V/Q Vest treatment, exhibiting increased oxygenation. The V/Q Vest also helped hospital staff predict that three of the five patients that were proned would experience an increase in oxygenation. An increase in oxygenation resulting from V/Q Vest treatment exceeded that of the proning treatment in two of these five proned patients.
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Affiliation(s)
- Alexander Ambrose
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 313 Ferst Drive NW, Atlanta, GA 30332
| | - Joshua Detelich
- Emory School of Medicine, Emory University Hospital, 1821 Clifton Rd, Atlanta, GA 30329
| | - Maxwell Weinmann
- Emory School of Medicine, Emory University Hospital, 1821 Clifton Rd, Atlanta, GA 30329
| | - Frank L. Hammond
- Woodruff School of Mechanical Engineering and Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Drive NW, Atlanta, GA 30332
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26
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Harnisch LO, Baumann S, Mihaylov D, Kiehntopf M, Bauer M, Moerer O, Quintel M. Biomarkers of Cholestasis and Liver Injury in the Early Phase of Acute Respiratory Distress Syndrome and Their Pathophysiological Value. Diagnostics (Basel) 2021; 11:diagnostics11122356. [PMID: 34943592 PMCID: PMC8699895 DOI: 10.3390/diagnostics11122356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/17/2021] [Accepted: 12/13/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Impaired liver function and cholestasis are frequent findings in critically ill patients and are associated with poor outcomes. We tested the hypothesis that hypoxic liver injury and hypoxic cholangiocyte injury are detectable very early in patients with ARDS, may depend on the severity of hypoxemia, and may be aggravated by the use of rescue therapies (high PEEP level and prone positioning) but could be attenuated by extracorporeal membrane oxygenation (ECMO). Methods: In 70 patients with ARDS, aspartate-aminotransferase (AST), alanin-aminotransferase (ALT) and gamma glutamyltransferase (GGT) were measured on the day of the diagnosis of ARDS and three more consecutive days (day 3, day 5, day 10), total bile acids were measured on day 0, 3, and 5. Results: AST levels increased on day 0 and remained constant until day 5, then dropped to normal on day 10 (day 0: 66.5 U/l; day 3: 60.5 U/l; day 5: 63.5 U/l, day 10: 32.1 U/l), ALT levels showed the exact opposite kinetic. GGT was already elevated on day 0 (91.5 U/l) and increased further throughout (day 3: 163.5 U/l, day 5: 213 U/l, day 10: 307 U/l), total bile acids levels increased significantly from day 0 to day 3 (p = 0.019) and day 0 to day 5 (p < 0.001), but not between day 3 and day 5 (p = 0.217). Total bile acids levels were significantly correlated to GGT on day 0 (p < 0.001), day 3 (p = 0.02), and in a trend on day 5 (p = 0.055). PEEP levels were significantly correlated with plasma levels of AST (day 3), ALT (day 5) and GGT (day 10). Biomarker levels were not associated with the use of ECMO, prone position, the cause of ARDS, and paO2. Conclusions: We found no evidence of hypoxic liver injury or hypoxic damage to cholangiocytes being caused by the severity of hypoxemia in ARDS patients during the very early phase of the disease. Additionally, mean PEEP level, prone positioning, and ECMO treatment did not have an impact in this regard. Nevertheless, GGT levels were elevated from day zero and rising, this increase was not related to paO2, prone position, ECMO treatment, or mean PEEP, but correlated to total bile acid levels.
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Affiliation(s)
- Lars-Olav Harnisch
- Department of Anesthesiology, University of Goettingen Medical Center, Robert-Koch-Str. 40, 37075 Goettingen, Germany; (S.B.); (O.M.); (M.Q.)
- Correspondence:
| | - Sophie Baumann
- Department of Anesthesiology, University of Goettingen Medical Center, Robert-Koch-Str. 40, 37075 Goettingen, Germany; (S.B.); (O.M.); (M.Q.)
| | - Diana Mihaylov
- Institute of Clinical Chemistry and Laboratory Medicine of the University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (D.M.); (M.K.)
| | - Michael Kiehntopf
- Institute of Clinical Chemistry and Laboratory Medicine of the University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (D.M.); (M.K.)
| | - Michael Bauer
- Department of Anesthesiology, University Hospital Jena, Bachstr. 18, 07743 Jena, Germany;
| | - Onnen Moerer
- Department of Anesthesiology, University of Goettingen Medical Center, Robert-Koch-Str. 40, 37075 Goettingen, Germany; (S.B.); (O.M.); (M.Q.)
| | - Michael Quintel
- Department of Anesthesiology, University of Goettingen Medical Center, Robert-Koch-Str. 40, 37075 Goettingen, Germany; (S.B.); (O.M.); (M.Q.)
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Thapa K, Verma N, Singh TG, Kaur Grewal A, Kanojia N, Rani L. COVID-19-Associated acute respiratory distress syndrome (CARDS): Mechanistic insights on therapeutic intervention and emerging trends. Int Immunopharmacol 2021; 101:108328. [PMID: 34768236 PMCID: PMC8563344 DOI: 10.1016/j.intimp.2021.108328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023]
Abstract
AIMS The novel Coronavirus disease 2019 (COVID-19) has caused great distress worldwide. Acute respiratory distress syndrome (ARDS) is well familiar but when it happens as part of COVID-19 it has discrete features which are unmanageable. Numerous pharmacological treatments have been evaluated in clinical trials to control the clinical effects of CARDS, but there is no assurance of their effectiveness. MATERIALS AND METHODS A systematic review of the literature of the Medline, Scopus, Bentham, PubMed, and EMBASE (Elsevier) databases was examined to understand the novel therapeutic approaches used in COVID-19-Associated Acute Respiratory Distress Syndrome and their outcomes. KEY FINDINGS Current therapeutic options may not be enough to manage COVID-19-associated ARDS complications in group of patients and therefore, the current review has discussed the pathophysiological mechanism of COVID-19-associated ARDS, potential pharmacological treatment and the emerging molecular drug targets. SIGNIFICANCE The rationale of this review is to talk about the pathophysiology of CARDS, potential pharmacological treatment and the emerging molecular drug targets. Currently accessible treatment focuses on modulating immune responses, rendering antiviral effects, anti-thrombosis or anti-coagulant effects. It is expected that considerable number of studies conducting globally may help to discover effective therapies to decrease mortality and morbidity occurring due to CARDS. Attention should be also given on molecular drug targets that possibly will help to develop efficient cure for COVID-19-associated ARDS.
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Affiliation(s)
- Komal Thapa
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India; Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Nitin Verma
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | | | | | - Neha Kanojia
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Lata Rani
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
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Zarragoikoetxea I, Pajares A, Moreno I, Porta J, Koller T, Cegarra V, Gonzalez A, Eiras M, Sandoval E, Sarralde J, Quintana-Villamandos B, Vicente Guillén R. Documento de consenso SEDAR/SECCE sobre el manejo de ECMO. CIRUGIA CARDIOVASCULAR 2021. [DOI: 10.1016/j.circv.2021.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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COVID-19 ARDS: Points to Be Considered in Mechanical Ventilation and Weaning. J Pers Med 2021; 11:jpm11111109. [PMID: 34834461 PMCID: PMC8618434 DOI: 10.3390/jpm11111109] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/21/2022] Open
Abstract
The COVID-19 disease can cause hypoxemic respiratory failure due to ARDS, requiring invasive mechanical ventilation. Although early studies reported that COVID-19-associated ARDS has distinctive features from ARDS of other causes, recent observational studies have demonstrated that ARDS related to COVID-19 shares common clinical characteristics and respiratory system mechanics with ARDS of other origins. Therefore, mechanical ventilation in these patients should be based on strategies aiming to mitigate ventilator-induced lung injury. Assisted mechanical ventilation should be applied early in the course of mechanical ventilation by considering evaluation and minimizing factors associated with patient-inflicted lung injury. Extracorporeal membrane oxygenation should be considered in selected patients with refractory hypoxia not responding to conventional ventilation strategies. This review highlights the current and evolving practice in managing mechanically ventilated patients with ARDS related to COVID-19.
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30
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Zarragoikoetxea I, Pajares A, Moreno I, Porta J, Koller T, Cegarra V, Gonzalez AI, Eiras M, Sandoval E, Aurelio Sarralde J, Quintana-Villamandos B, Vicente Guillén R. SEDAR/SECCE ECMO management consensus document. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2021; 68:443-471. [PMID: 34535426 DOI: 10.1016/j.redare.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 12/14/2020] [Indexed: 06/13/2023]
Abstract
ECMO is an extracorporeal cardiorespiratory support system whose use has been increased in the last decade. Respiratory failure, postcardiotomy shock, and lung or heart primary graft failure may require the use of cardiorespiratory mechanical assistance. In this scenario perioperative medical and surgical management is crucial. Despite the evolution of technology in the area of extracorporeal support, morbidity and mortality of these patients continues to be high, and therefore the indication as well as the ECMO removal should be established within a multidisciplinary team with expertise in the area. This consensus document aims to unify medical knowledge and provides recommendations based on both the recent bibliography and the main national ECMO implantation centres experience with the goal of improving comprehensive patient care.
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Affiliation(s)
- I Zarragoikoetxea
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
| | - A Pajares
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - I Moreno
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - J Porta
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - T Koller
- Servicio de Anestesiología y Reanimación, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - V Cegarra
- Servicio de Anestesiología y Reanimación, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - A I Gonzalez
- Servicio de Anestesiología y Reanimación, Hospital Puerta de Hierro, Madrid, Spain
| | - M Eiras
- Servicio de Anestesiología y Reanimación, Hospital Clínico Universitario de Santiago, La Coruña, Spain
| | - E Sandoval
- Servicio de Cirugía Cardiovascular, Hospital Clínic de Barcelona, Barcelona, Spain
| | - J Aurelio Sarralde
- Servicio de Cirugía Cardiovascular, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - B Quintana-Villamandos
- Servicio de Anestesiología y Reanimación, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - R Vicente Guillén
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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31
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Wendel Garcia PD, Hofmaenner DA, Brugger SD, Acevedo CT, Bartussek J, Camen G, Bader PR, Bruellmann G, Kattner J, Ganter C, Schuepbach RA, Buehler PK. Closed-Loop Versus Conventional Mechanical Ventilation in COVID-19 ARDS. J Intensive Care Med 2021; 36:1184-1193. [PMID: 34098803 PMCID: PMC8442133 DOI: 10.1177/08850666211024139] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/28/2021] [Accepted: 05/24/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Lung-protective ventilation is key in bridging patients suffering from COVID-19 acute respiratory distress syndrome (ARDS) to recovery. However, resource and personnel limitations during pandemics complicate the implementation of lung-protective protocols. Automated ventilation modes may prove decisive in these settings enabling higher degrees of lung-protective ventilation than conventional modes. METHOD Prospective study at a Swiss university hospital. Critically ill, mechanically ventilated COVID-19 ARDS patients were allocated, by study-blinded coordinating staff, to either closed-loop or conventional mechanical ventilation, based on mechanical ventilator availability. Primary outcome was the overall achieved percentage of lung-protective ventilation in closed-loop versus conventional mechanical ventilation, assessed minute-by-minute, during the initial 7 days and overall mechanical ventilation time. Lung-protective ventilation was defined as the combined target of tidal volume <8 ml per kg of ideal body weight, dynamic driving pressure <15 cmH2O, peak pressure <30 cmH2O, peripheral oxygen saturation ≥88% and dynamic mechanical power <17 J/min. RESULTS Forty COVID-19 ARDS patients, accounting for 1,048,630 minutes (728 days) of cumulative mechanical ventilation, allocated to either closed-loop (n = 23) or conventional ventilation (n = 17), presenting with a median paO2/ FiO2 ratio of 92 [72-147] mmHg and a static compliance of 18 [11-25] ml/cmH2O, were mechanically ventilated for 11 [4-25] days and had a 28-day mortality rate of 20%. During the initial 7 days of mechanical ventilation, patients in the closed-loop group were ventilated lung-protectively for 65% of the time versus 38% in the conventional group (Odds Ratio, 1.79; 95% CI, 1.76-1.82; P < 0.001) and for 45% versus 33% of overall mechanical ventilation time (Odds Ratio, 1.22; 95% CI, 1.21-1.23; P < 0.001). CONCLUSION Among critically ill, mechanically ventilated COVID-19 ARDS patients during an early highpoint of the pandemic, mechanical ventilation using a closed-loop mode was associated with a higher degree of lung-protective ventilation than was conventional mechanical ventilation.
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Affiliation(s)
| | | | - Silvio D. Brugger
- Division of Infectious Diseases, University Hospital of
Zurich, University of Zurich, Zurich, Switzerland
| | - Claudio T. Acevedo
- Division of Infectious Diseases, University Hospital of
Zurich, University of Zurich, Zurich, Switzerland
| | - Jan Bartussek
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | - Giovanni Camen
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | - Patrick Raphael Bader
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | - Gregor Bruellmann
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | - Johannes Kattner
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | - Christoph Ganter
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
| | | | - Philipp Karl Buehler
- Institute of Intensive Care Medicine, University Hospital of
Zurich, Zurich, Switzerland
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Sussman MA. VAPIng into ARDS: Acute Respiratory Distress Syndrome and Cardiopulmonary Failure. Pharmacol Ther 2021; 232:108006. [PMID: 34582836 DOI: 10.1016/j.pharmthera.2021.108006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/10/2021] [Accepted: 09/23/2021] [Indexed: 12/12/2022]
Abstract
"Modern" vaping involving battery-operated electronic devices began approximately one dozen years and has quickly evolved into a multibillion dollar industry providing products to an estimated 50 million users worldwide. Originally developed as an alternative to traditional cigarette smoking, vaping now appeals to a diverse demographic including substantial involvement of young people who often have never used cigarettes. The rapid rise of vaping fueled by multiple factors has understandably outpaced understanding of biological effects, made even more challenging due to wide ranging individual user habits and preferences. Consequently while vaping-related research gathers momentum, vaping-associated pathological injury (VAPI) has been established by clinical case reports with severe cases manifesting as acute respiratory distress syndrome (ARDS) with examples of right ventricular cardiac failure. Therefore, basic scientific studies are desperately needed to understand the impact of vaping upon the lungs as well as cardiopulmonary structure and function. Experimental models that capture fundamental characteristics of vaping-induced ARDS are essential to study pathogenesis and formulate recommendations to mitigate harmful effects attributable to ingredients or equipment. So too, treatment strategies to promote recovery from vaping-associated damage require development and testing at the preclinical level. This review summarizes the back story of vaping leading to present day conundrums with particular emphasis upon VAPI-associated ARDS and prioritization of research goals.
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Affiliation(s)
- Mark A Sussman
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA.
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Wavelet Transform Image Enhancement Algorithm-Based Evaluation of Lung Recruitment Effect and Nursing of Acute Respiratory Distress Syndrome by Ultrasound Image. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:8960465. [PMID: 34545301 PMCID: PMC8449728 DOI: 10.1155/2021/8960465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/31/2021] [Indexed: 12/14/2022]
Abstract
This study aimed to analyze the application of ultrasound images of lung recruitment (LR) nursing treatment guided by positive-end expiratory pressure (PEEP) in patients with acute respiratory distress syndrome (ARDS). An ultrasound image enhancement algorithm (UIEA) wavelet transform (WT) was constructed, and the soft threshold (ST) and adjacent region average (ARA) were introduced for simulation comparison. In addition, the signal-to-noise ratio (SNR), peak signal-to-noise ratio (PSNR), and running time were undertaken as the evaluation indexes. The WT algorithm was applied to the ultrasound images of 85 ARDS patients before and after PEEP recruitment. The mean artery pressure (MAP), heart rate (HR), and central venous pressure (CVP), peak inspiratory pressure (Ppeak), mean inspiratory pressure (Pmean), dynamic lung compliance (DLC), PCO2, and PaO2/FiO2 of the patients were recorded before and after the LR. The results showed that the signal-to-noise ratio (SNR) (19.67 ± 3.15 dB) and PSNR (23.08 ± 2.08 dB) of the images enhanced by the WT algorithm were much higher than those of ST (13.88 ± 2.74 dB and 14.62 ± 1.76 dB, respectively) and ARA (14.96 ± 3.06 dB and 15.11 ± 1.94 dB, respectively), while the running time was in adverse (P < 0.05); the HR and CVP of patients after LR nursing treatment were increased greatly, while the MAP was in the opposite case (P < 0.05); after LR nursing treatment, Ppeak, Pmean, DLC, PCO2, and PaO2/FiO2 of the patient were significantly greater than those before the LR, and the difference was statistically significant (P < 0.05). In short, the WT algorithm not only enhanced the quality of ultrasound images but also shortened the running time and improved the processing efficiency. PEEP LR nursing treatment could effectively improve the vascular patency, cardiac ejection capacity, and DLC in patients with ARDS, thereby increasing the airway pressure and maintaining the unobstructed expiration.
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Li C, Wang S, Wang H, Wu Y, Ma J, Li W, Duan J. The effects of hemodynamic monitoring using the PiCCO system on critically ill patients. Am J Transl Res 2021; 13:10578-10585. [PMID: 34650729 PMCID: PMC8507053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/11/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE We aimed to evaluate the effects of hemodynamic monitoring using the pulse index continuous cardiac output (PiCCO) system with critically ill patients. METHODS In total, 292 patients with primary physiological abnormalities of hypotension (n = 180) or hypoxemia (n = 112) were evaluated. The attending physicians completed a questionnaire before each catheterization. After each catheterization, the attending physicians reviewed each chart to determine the possibility of altering the therapy. RESULTS In the hypotension subgroup, the attending physicians showed less accuracy in predicting the global end-diastolic index values (23.9%, 43/180), with a significant difference, and more accuracy in predicting the extravascular lung water index values (58.9%, 66/112), without a significant difference from the patients in the hypoxemia subgroup. In the hypotension patients, the lactate clearance rate within 6 h was significantly higher (36.4 ± 9.6 vs 21.3 ± 9.5; P<0.0001) when the hemodynamic monitoring led to therapeutic changes. CONCLUSIONS The hemodynamic variables obtained using the PiCCO system improved the accuracy of the bedside evaluations and led to alterations in the therapeutic plans, particularly among the hypotension patients. The therapy changes showed no improvement in the overall mortality but were associated with improved tissue perfusion among the hypotension patients.
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Affiliation(s)
- Chen Li
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Shupeng Wang
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Hui Wang
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Yina Wu
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Junyu Ma
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Wen Li
- SICU, China-Japan Friendship Hospital Beijing 100029, China
| | - Jun Duan
- SICU, China-Japan Friendship Hospital Beijing 100029, China
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Donina ZA, Baranova EV, Aleksandrova NP. A Comparative Assessment of Effects of Major Mediators of Acute Phase Response (IL-1, TNF-α, IL-6) on Breathing Pattern and Survival Rate in Rats with Acute Progressive Hypoxia. J EVOL BIOCHEM PHYS+ 2021; 57:936-944. [PMID: 34456365 PMCID: PMC8383921 DOI: 10.1134/s0022093021040177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/27/2021] [Accepted: 06/06/2021] [Indexed: 11/26/2022]
Abstract
A pressing issue of the day is the identification of therapeutic targets to suppress the "cytokine storm" in COVID-19 complicated by acute respiratory distress syndrome (ARDS) with concomitant hypoxemia. However, the key cytokine and its relative contribution to the pathogenesis of ARDS, which leads to high mortality, are unknown. A comparative assessment of the effect of elevated systemic levels of pro-inflammatory cytokines IL-1β, TNF-1α and IL-6 on the respiratory patterns and survival rate in rats was carried out under progressively increasing acute hypoxia. Increasing hypoxia was simulated by a rebreathing method (from normoxia to apnea). The recorded parameters were the breathing pattern components (tidal volume and respiratory rate), minute ventilation (MV), oxygen saturation, apnea onset time, and posthypoxic survival rate. A comparative analysis was carried out under mild, moderate and severe hypoxia (at FIO2 = 15, 12 and 8%, respectively). It was shown that increasing hypoxia was accompanied by an acute suppression of the compensatory elevation of MV in rats with increased systemic levels of IL-1β and TNF-1α. By contrast, IL-6 caused an intensive elevation of MV with increasing hypoxia. Acute hypoxia (FIO2 < 8%), in all experimental series, was accompanied by an impairment of the respiratory rhythm up to the development of apnea. Posthypoxic breathing restoration (survival rate) was 50% with IL-1β and TNF-1α and only 10% with IL-6. The obtained results indicate that the elevated IL-6 level, despite the absence of respiratory disorders at the initial stage of the developing pathologic process, leads to a higher mortality in rats compared to IL-1β and TNF-1α. This allows considering IL-6 as an early prognostic biomarker of a high risk of mortality under severe hypoxemia.
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Affiliation(s)
- Zh. A. Donina
- Pavlov Institute of Physiology,
Russian Academy of Sciences, St. Petersburg, Russia
| | - E. V. Baranova
- Pavlov Institute of Physiology,
Russian Academy of Sciences, St. Petersburg, Russia
| | - N. P. Aleksandrova
- Pavlov Institute of Physiology,
Russian Academy of Sciences, St. Petersburg, Russia
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Nguyen C, Montcriol A, Janvier F, Cungi PJ, Esnault P, Mathais Q, Vallet C, Boussen S, Cordier PY, Serpin L, Papazian L, Bordes J. Critical COVID-19 patient evacuation on an amphibious assault ship: feasibility and safety. A case series. BMJ Mil Health 2021; 167:224-228. [PMID: 32764134 PMCID: PMC7411308 DOI: 10.1136/bmjmilitary-2020-001520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION An amphibious assault ship was deployed on 22 March in Corsica to carry out medical evacuation of 12 critical patients infected with COVID-19. The ship has on-board hospital capacity and is the first time that an amphibious assault ship is engaged in this particular condition. The aim is to evaluate the feasibility and safety of prolonged medical evacuation of critical patients with COVID-19. METHODS We included 12 patients with confirmed COVID-19 infection: six ventilated patients with acute respiratory distress syndrome and six non-ventilated patients with hypoxaemia. Transfer on an amphibious assault ship lasted 20 hours. We collected patients' medical records: age, comorbidities, COVID-19 history and diagnosis, ventilation supply and ventilator settings, and blood gas results. We calculated oxygen consumption (OC). RESULTS All patients had a medical history. The median delay from onset of symptoms to hospitalisation was 8 (7-10) days. The median Sequential Organ Failure Assessment score on admission was 3 (2-5). There was no significant increase in oxygen during ship transport and no major respiratory complication. There was no significant increase in arterial oxygen pressure to fractional inspired oxygen ratio among ventilated patients during ship transport. Among ventilated patients, the median calculated OC was 255 L (222-281) by hours and 5270 L (4908-5616) during all ship transport. Among non-ventilated patients, the median calculated OC was 120 L (120-480) by hours and 2400 L (2400-9600) during all ship transport. CONCLUSION The present work contributes to assessing the feasibility and safety condition of critical COVID-19 evacuation on an amphibious assault ship during an extended transport. The ship needs to prepare a plan and a specialised intensive team and conduct patient screening for prolonged interhospital transfers.
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Affiliation(s)
- Cédric Nguyen
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - A Montcriol
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - F Janvier
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - P-J Cungi
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - P Esnault
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - Q Mathais
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | | | - S Boussen
- APHM, Marseille, Provence-Alpes-Côte d'Azur, France
| | - P-Y Cordier
- Anesthesiology and Intensive Care, HIA LAVERAN, Marseille, France
| | - L Serpin
- Emergency, Hospital Centre Ajaccio, Ajaccio, France
| | - L Papazian
- APHM, Marseille, Provence-Alpes-Côte d'Azur, France
| | - J Bordes
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
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Demiselle J, Calzia E, Hartmann C, Messerer DAC, Asfar P, Radermacher P, Datzmann T. Target arterial PO 2 according to the underlying pathology: a mini-review of the available data in mechanically ventilated patients. Ann Intensive Care 2021; 11:88. [PMID: 34076802 PMCID: PMC8170650 DOI: 10.1186/s13613-021-00872-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/10/2021] [Indexed: 12/15/2022] Open
Abstract
There is an ongoing discussion whether hyperoxia, i.e. ventilation with high inspiratory O2 concentrations (FIO2), and the consecutive hyperoxaemia, i.e. supraphysiological arterial O2 tensions (PaO2), have a place during the acute management of circulatory shock. This concept is based on experimental evidence that hyperoxaemia may contribute to the compensation of the imbalance between O2 supply and requirements. However, despite still being common practice, its use is limited due to possible oxygen toxicity resulting from the increased formation of reactive oxygen species (ROS) limits, especially under conditions of ischaemia/reperfusion. Several studies have reported that there is a U-shaped relation between PaO2 and mortality/morbidity in ICU patients. Interestingly, these mostly retrospective studies found that the lowest mortality coincided with PaO2 ~ 150 mmHg during the first 24 h of ICU stay, i.e. supraphysiological PaO2 levels. Most of the recent large-scale retrospective analyses studied general ICU populations, but there are major differences according to the underlying pathology studied as well as whether medical or surgical patients are concerned. Therefore, as far as possible from the data reported, we focus on the need of mechanical ventilation as well as the distinction between the absence or presence of circulatory shock. There seems to be no ideal target PaO2 except for avoiding prolonged exposure (> 24 h) to either hypoxaemia (PaO2 < 55-60 mmHg) or supraphysiological (PaO2 > 100 mmHg). Moreover, the need for mechanical ventilation, absence or presence of circulatory shock and/or the aetiology of tissue dysoxia, i.e. whether it is mainly due to impaired macro- and/or microcirculatory O2 transport and/or disturbed cellular O2 utilization, may determine whether any degree of hyperoxaemia causes deleterious side effects.
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Affiliation(s)
- Julien Demiselle
- Service de Médecine Intensive - Réanimation, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, 1, place de l′Hôpital, F–67091, Strasbourg, Cedex, France
| | - Enrico Calzia
- Institut Für Anästhesiologische Pathophysiologie Und Verfahrensentwicklung, Universitätsklinikum, Helmholtzstrasse 8-1, 89081 Ulm, Germany
| | - Clair Hartmann
- Klinik Für Anästhesiologie Und Intensivmedizin, Universitätsklinikum, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - David Alexander Christian Messerer
- Institut Für Anästhesiologische Pathophysiologie Und Verfahrensentwicklung, Universitätsklinikum, Helmholtzstrasse 8-1, 89081 Ulm, Germany
- Klinik Für Anästhesiologie Und Intensivmedizin, Universitätsklinikum, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Pierre Asfar
- Service de Médecine Intensive - Réanimation Et Médecine Hyperbare, Centre Hospitalier Universitaire D’Angers, 4 rue Larrey - 49 933, Angers Cedex 9, France
| | - Peter Radermacher
- Institut Für Anästhesiologische Pathophysiologie Und Verfahrensentwicklung, Universitätsklinikum, Helmholtzstrasse 8-1, 89081 Ulm, Germany
| | - Thomas Datzmann
- Institut Für Anästhesiologische Pathophysiologie Und Verfahrensentwicklung, Universitätsklinikum, Helmholtzstrasse 8-1, 89081 Ulm, Germany
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Bertsimas D, Boussioux L, Cory-Wright R, Delarue A, Digalakis V, Jacquillat A, Kitane DL, Lukin G, Li M, Mingardi L, Nohadani O, Orfanoudaki A, Papalexopoulos T, Paskov I, Pauphilet J, Lami OS, Stellato B, Bouardi HT, Carballo KV, Wiberg H, Zeng C. From predictions to prescriptions: A data-driven response to COVID-19. Health Care Manag Sci 2021; 24:253-272. [PMID: 33590417 PMCID: PMC7883965 DOI: 10.1007/s10729-020-09542-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/16/2020] [Indexed: 01/08/2023]
Abstract
The COVID-19 pandemic has created unprecedented challenges worldwide. Strained healthcare providers make difficult decisions on patient triage, treatment and care management on a daily basis. Policy makers have imposed social distancing measures to slow the disease, at a steep economic price. We design analytical tools to support these decisions and combat the pandemic. Specifically, we propose a comprehensive data-driven approach to understand the clinical characteristics of COVID-19, predict its mortality, forecast its evolution, and ultimately alleviate its impact. By leveraging cohort-level clinical data, patient-level hospital data, and census-level epidemiological data, we develop an integrated four-step approach, combining descriptive, predictive and prescriptive analytics. First, we aggregate hundreds of clinical studies into the most comprehensive database on COVID-19 to paint a new macroscopic picture of the disease. Second, we build personalized calculators to predict the risk of infection and mortality as a function of demographics, symptoms, comorbidities, and lab values. Third, we develop a novel epidemiological model to project the pandemic's spread and inform social distancing policies. Fourth, we propose an optimization model to re-allocate ventilators and alleviate shortages. Our results have been used at the clinical level by several hospitals to triage patients, guide care management, plan ICU capacity, and re-distribute ventilators. At the policy level, they are currently supporting safe back-to-work policies at a major institution and vaccine trial location planning at Janssen Pharmaceuticals, and have been integrated into the US Center for Disease Control's pandemic forecast.
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Affiliation(s)
- Dimitris Bertsimas
- Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Leonard Boussioux
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ryan Cory-Wright
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Arthur Delarue
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Vassilis Digalakis
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Alexandre Jacquillat
- Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Driss Lahlou Kitane
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Galit Lukin
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Michael Li
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Luca Mingardi
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Omid Nohadani
- Benefits Science Technologies, Boston, MA 02110, USA
| | - Agni Orfanoudaki
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Ivan Paskov
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Omar Skali Lami
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Bartolomeo Stellato
- Operations Research and Financial EngineeringPrinceton University, Princeton, NJ, 08544, USA
| | - Hamza Tazi Bouardi
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Holly Wiberg
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Cynthia Zeng
- Operations Research Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Therapeutic Applications of Stem Cells and Extracellular Vesicles in Emergency Care: Futuristic Perspectives. Stem Cell Rev Rep 2021; 17:390-410. [PMID: 32839921 PMCID: PMC7444453 DOI: 10.1007/s12015-020-10029-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Regenerative medicine (RM) is an interdisciplinary field that aims to repair, replace or regenerate damaged or missing tissue or organs to function as close as possible to its physiological architecture and functions. Stem cells, which are undifferentiated cells retaining self-renewal potential, excessive proliferation and differentiation capacity into offspring or daughter cells that form different lineage cells of an organism, are considered as an important part of the RM approaches. They have been widely investigated in preclinical and clinical studies for therapeutic purposes. Extracellular vesicles (EVs) are the vital mediators that regulate the therapeutic effects of stem cells. Besides, they carry various types of cargo between cells which make them a significant contributor of intercellular communication. Given their role in physiological and pathological conditions in living cells, EVs are considered as a new therapeutic alternative solution for a variety of diseases in which there is a high unmet clinical need. This review aims to summarize and identify therapeutic potential of stem cells and EVs in diseases requiring acute emergency care such as trauma, heart diseases, stroke, acute respiratory distress syndrome and burn injury. Diseases that affect militaries or societies including acute radiation syndrome, sepsis and viral pandemics such as novel coronavirus disease 2019 are also discussed. Additionally, featuring and problematic issues that hamper clinical translation of stem cells and EVs are debated in a comparative manner with a futuristic perspective. Graphical Abstract.
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Arasu M, Swaminathan N, Cherian A, Parthiban M. Prone ventilation in a pregnant patient with scrub typhus-induced acute respiratory distress syndrome. BMJ Case Rep 2021; 14:e242870. [PMID: 33827889 PMCID: PMC8031017 DOI: 10.1136/bcr-2021-242870] [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] [Accepted: 03/22/2021] [Indexed: 11/03/2022] Open
Abstract
A 23-year-old primigravida at 20 weeks of gestation presented to our hospital with undifferentiated febrile illness and severe acute respiratory distress syndrome. She was intubated in the emergency department and transferred to the intensive care unit. Initial treatment included ventilatory care, vasopressor support and broad-spectrum antibiotics. Based on a positive PCR assay for scrub typhus, she was treated with intravenous doxycycline and azithromycin. Despite reduction in fever, her oxygenation further declined. Following a risk-benefits assessment, we decided to ventilate her in prone position for 8 hours a day for three consecutive days using a checklist-based protocol. Her oxygenation indices and lung compliance markedly improved over this period, and she was extubated a day later. She was eventually discharged home after 1 week.
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Affiliation(s)
- Meenupriya Arasu
- Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education, Puducherry, India
| | - Nagalakshmi Swaminathan
- Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education, Puducherry, India
| | - Anusha Cherian
- Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education, Puducherry, India
| | - Magesh Parthiban
- Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education, Puducherry, India
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Zhang W, Ban Y, Wu YH, Liu JY, Li XH, Wu H, Li H, Chen R, Yu XX, Zheng R. Epidemiological and clinical characteristics of 65 hospitalized patients with COVID-19 in Liaoning, China. World J Clin Cases 2021; 9:2205-2217. [PMID: 33869596 PMCID: PMC8026826 DOI: 10.12998/wjcc.v9.i10.2205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/15/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) has spread rapidly to multiple countries through its infectious agent severe acute respiratory syndrome coronavirus 2. The severity, atypical clinical presentation, and lack of specific anti-viral treatments have posed a challenge for the diagnosis and treatment of COVID-19. Understanding the epidemiological and clinical characteristics of COVID-19 cases in different geographical areas is essential to improve the prognosis of COVID-19 patients and slow the spread of the disease.
AIM To investigate the epidemiological and clinical characteristics and main therapeutic strategy for confirmed COVID-19 patients hospitalized in Liaoning Province, China.
METHODS Adult patients (n = 65) with confirmed COVID-19 were enrolled in this retrospective study from January 20 to February 29, 2020 in Liaoning Province, China. Pharyngeal swabs and sputum specimens were collected from the patients for the detection of severe acute respiratory syndrome coronavirus 2 nucleic acid. Patient demographic information and clinical data were collected from the medical records. Based on the severity of COVID-19, the patients were divided into nonsevere and severe groups. All patients were followed until March 20, 2020.
RESULTS The mean age of 65 COVID-19 patients was 45.5 ± 14.4 years, 56.9% were men, and 24.6% were severe cases. During the 14 d before symptom onset, 25 (38.5%) patients lived or stayed in Wuhan, whereas 8 (12.3%) had no clear history of exposure. Twenty-nine (44.6%) patients had at least one comorbidity; hypertension and diabetes were the most common comorbidities. Compared with nonsevere patients, severe patients had significantly lower lymphocyte counts [median value 1.3 × 109/L (interquartile range 0.9-1.95) vs 0.82 × 109/L (0.44-1.08), P < 0.001], elevated levels of lactate dehydrogenase [450 U/L (386-476) vs 707 U/L (592-980), P < 0.001] and C-reactive protein [6.1 mg/L (1.5-7.2) vs 52 mg/L (12.7-100.8), P < 0.001], and a prolonged median duration of viral shedding [19.5 d (16-21) vs 23.5 d (19.6-30.3), P = 0.001]. The overall median viral shedding time was 19.5 d, and the longest was 53 d. Severe patients were more frequently treated with lopinavir/ritonavir, antibiotics, glucocorticoid therapy, immunoglobulin, thymosin, and oxygen support. All patients were discharged following treatment in quarantine.
CONCLUSION Our findings may facilitate the identification of severe cases and inform clinical treatment and quarantine decisions regarding COVID-19.
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Affiliation(s)
- Wei Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Yuan Ban
- Department of Critical Care Medicine, The Sixth People's Hospital of Shenyang, Shenyang 110006, Liaoning Province, China
| | - Yun-Hai Wu
- Department of Critical Care Medicine, The Sixth People's Hospital of Shenyang, Shenyang 110006, Liaoning Province, China
| | - Jin-Yang Liu
- Department of Infectious Diseases, The Sixth People's Hospital of Shenyang, Shenyang 110006, Liaoning Province, China
| | - Xing-Hai Li
- Department of Infectious Diseases, The Sixth People's Hospital of Shenyang, Shenyang 110006, Liaoning Province, China
| | - Hao Wu
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Huan Li
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Rui Chen
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Xiao-Xu Yu
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Rui Zheng
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
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Ávila Reyes D, García P. BD, Salazar Gutierrez G, Gómez González JF, Echeverry Piedrahita DR, Galvis JC, Aguirre-Flórez M. Mechanical ventilation in SARS-CoV-2 patients: state of art. COLOMBIAN JOURNAL OF ANESTHESIOLOGY 2021. [DOI: 10.5554/22562087.e971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
COVID-19-associated infection leads to a pathology of yet unknown clinical behavior, confronting the clinician with various challenges. An extensive search was conducted based on review articles on SARS-CoV-2 infection and studies including mechanical ventilation management strategies in order to complete this narrative review. Evidenced-based treatment for SARS-CoV2 infection is still in the works. We have some tools from our knowledge from past experiences indicating that a step-wise management approach should be used, without neglecting other joint therapeutic measures for improved clinical outcomes of a condition with a high mortality. The current recommendations indicate that patients with severe acute respiratory failure due to SARS-CoV-2 should be managed with protective mechanical ventilation measures. No strong evidence is yet available on the individualization of mechanical ventilation therapy according to phenotypes.
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Urbina J, Monks SM, Ochoa L, Stump RF, Wicker RB, Danek C, Torres VI, Crawford SB. Development and Evaluation of an Automated Manual Resuscitator-Based Emergency Ventilator-Alternative. Cureus 2021; 13:e13642. [PMID: 33824795 PMCID: PMC8012105 DOI: 10.7759/cureus.13642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Mass casualty incidents such as those that are being experienced during the novel coronavirus disease (COVID-19) pandemic can overwhelm local healthcare systems, where the number of casualties exceeds local resources and capabilities in a short period of time. The influx of patients with lung function deterioration as a result of COVID-19 has strained traditional ventilator supplies. To bridge the gap during ventilator shortages and to help clinicians triage patients, manual resuscitator devices can be used to deliver respirations to a patient requiring breathing support. Bag-valve mask (BVM) devices are ubiquitous in ambulances and healthcare environments, however require a medical professional to be present and constantly applying compression to provide the patient with respirations. We developed an automated manual resuscitator-based emergency ventilator-alternative (AMREV) that provides automated compressions of a BVM in a repetitive manner and is broadly compatible with commercially-available BVM devices approximately 5 inches (128 mm) in diameter. The AMREV device relieves the medical professional from providing manual breathing support and allows for hands-free operation of the BVM. The AMREV supports the following treatment parameters: 1) adjustable tidal volume (VT), 2) positive end-expiratory pressure (PEEP) (intrinsic and/or external), 3) 1:1 inspiratory: expiratory ratio, and 4) a controllable respiratory rate between 10-30 breaths per minute. The relationship between the inherent resistance and compliance of the lung and the delivered breaths was assessed for the AMREV device. Adjustable VT of 110-700 ml was achieved within the range of simulated lung states. A linear increase in mean airway pressure (Paw), from 10-40 cmH2O was observed, as the resistance and compliance on the lung model moved from normal to severe simulated disease states. The AMREV functioned continuously for seven days with less than 3.2% variation in delivered VT and Paw. Additionally, the AMREV device was compatible with seven commercially-available BVM setups and delivered consistent VT and Paw within 10% between models. This automated BVM-based emergency-use resuscitator can provide consistent positive pressure, volume-controlled ventilation over an extended duration when a traditional ventilator is not available. True ventilator shortages may lead to manual resuscitators devices such as the AMREV being the only option for some healthcare systems during the COVID-19 pandemic.
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Affiliation(s)
- Jesica Urbina
- Training and Educational Center for Healthcare Simulation (TECHS), Texas Tech University Health Sciences Center El Paso, El Paso, USA
| | - Stormy M Monks
- Training and Educational Center for Healthcare Simulation (TECHS), Texas Tech University Health Sciences Center El Paso, El Paso, USA
| | - Luis Ochoa
- W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, USA
| | - Robert F Stump
- Emergency Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, USA
| | - Ryan B Wicker
- W.M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, USA
| | - Chris Danek
- Regulatory Affairs, Bessel LLC, San Carlos, USA
| | - Victor I Torres
- Training and Educational Center for Healthcare Simulation (TECHS), Texas Tech University Health Sciences Center El Paso, El Paso, USA
| | - Scott B Crawford
- Emergency Medicine; Training and Educational Center for Healthcare Simulation (TECHS), Texas Tech University Health Sciences Center El Paso, El Paso, USA
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Morata L, Sole ML, Guido-Sanz F, Ogilvie C, Rich R. Manual vs Automatic Prone Positioning and Patient Outcomes in Acute Respiratory Distress Syndrome. Am J Crit Care 2021; 30:104-112. [PMID: 33644805 DOI: 10.4037/ajcc2021674] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND Prone positioning is a standard treatment for moderate to severe acute respiratory distress syndrome (ARDS), but the outcomes associated with manual versus automatic prone positioning have not been evaluated. OBJECTIVE To retrospectively evaluate outcomes associated with manual versus automatic prone positioning as part of a pronation quality improvement project implemented by a multidisciplinary team. METHODS A retrospective, descriptive-comparative approach was used to analyze data from 24 months of a prone positioning protocol for ARDS. The study involved 37 patients, with 16 undergoing manual and 21 undergoing automatic prone positioning. Descriptive and nonparametric statistical analyses were used to evaluate outcomes associated with manual versus automatic prone positioning. RESULTS Outcomes were similar between the 2 groups regarding time to initiation of prone positioning, discharge disposition, and length of stay. Manually pronated patients were less likely to experience interruptions in therapy (P = .005) and complications (P = .002). Pressure injuries were the most common type of complication, with the most frequent locations in automatically pronated patients being the head (P = .045), thorax (P = .003), and lower extremities (P = .047). Manual prone positioning resulted in a cost avoidance of $78 617 per patient. CONCLUSION Manual prone positioning has outcomes similar to those of automatic prone positioning with less risk of interruptions in therapy, fewer complications, and lower expense. Further research is needed to determine whether manual prone positioning is superior to automatic prone positioning in patients with ARDS.
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Affiliation(s)
- Lauren Morata
- Lauren Morata is a clinical nurse specialist and clinical quality consultant, Lakeland Regional Health, Lakeland, Florida
| | - Mary Lou Sole
- Mary Lou Sole is dean and professor, College of Nursing, University of Central Florida, Orlando, Florida
| | - Frank Guido-Sanz
- Frank Guido-Sanz is an assistant professor, College of Nursing, University of Central Florida, Orlando, Florida
| | - Carrie Ogilvie
- Carrie Ogilvie is an associate vice-president of critical care and trauma services, Lakeland Regional Health, Lakeland, Florida
| | - Rebecca Rich
- Rebecca Rich is a critical care clinical pharmacy specialist, Lakeland Regional Health, Lakeland, Florida
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Developing and Implementing a Dedicated Prone Positioning Team for Mechanically Ventilated ARDS Patients During the COVID-19 Crisis. Jt Comm J Qual Patient Saf 2021; 47:347-353. [PMID: 33736966 PMCID: PMC7907735 DOI: 10.1016/j.jcjq.2021.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Background The spread of the COVID-19 pandemic in China demonstrated at an early stage the high rate of moderate to severe acute respiratory distress syndrome (ARDS) in the patient population. An intervention that has proved beneficial is the use of prone positioning (PP) for mechanically ventilated patients with ARDS. In one institution, PP was practiced in the medical ICU for this population. However, with the dramatically increasing patient load, staff anticipated that greater capacity to provide this treatment to all qualifying patients would be required. Methods A group of physical therapists and occupational therapists (PT/OTs) with ICU experience was redeployed from their regular roles to receive training in PP from an experienced medical ICU (MICU) RN. After intensive training, the team was ready to provide PP to patients. As the workload increased, additional PT/OTs were recruited to the team. A coordinating structure comprising attending pulmonologists screened and advised on appropriate patients. A communication and feedback structure was also implemented. Results Over a period of seven weeks, the team provided PP to more than 100 patients, with 577 individual interventions in a total of 14 ICUs and one emergency department. There were no major airway or central venous access complications, and only one anterior pressure injury was recorded. Conclusion The rapid implementation of an interdisciplinary PP team in a crisis situation is feasible. It can provide a safe and efficient alternative to adding to the workload of an overloaded nursing staff.
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Ding H, Li Y, Li X, Liu X, Chen S, Liu M, Zeng H. Treatment with 7% and 10% CO 2 enhanced expression of IL-1β, TNF-α, and IL-6 in hypoxic cultures of human whole blood. J Int Med Res 2021; 48:300060520912105. [PMID: 32264730 PMCID: PMC7144675 DOI: 10.1177/0300060520912105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective This study investigated whether hypercapnia influenced the inflammatory response of hypoxic blood. Methods Human whole blood was cultured with 0.2% oxygen (O2) and treated with 5%, 7%, or 10% carbon dioxide (CO2). Interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and IL-6 were evaluated in whole blood cultures. Reactive oxygen species (ROS) production and expression levels of caspase-1 and IL-1β were evaluated in THP-1 monocytic cells. Results IL-1β, TNF-α, and IL-6 levels were higher in the hypoxia + 7% CO2 group than in the hypoxia + 5% CO2 group. The hypoxia + 10% CO2 group had the highest IL-1β, TNF-α, and IL-6 levels, compared with the hypoxia + 7% CO2 and hypoxia + 5% CO2 groups. Expression levels of IL-1β, TNF-α, and IL-6 were significantly negatively correlated with pH levels in the cell culture medium. Treatment with 7% and 10% CO2 increased the production of ROS and the expression of caspase-1 and IL-1β in hypoxia-activated THP-1 cells. Conclusions High levels of CO2 treatment increased expression levels of IL-1β, TNF-α, and IL-6 in hypoxic whole blood cultures. High levels of CO2-induced ROS overproduction and NLRP3 inflammasome activation in monocytes may comprise a target to mitigate the inflammatory response of hypoxic blood.
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Affiliation(s)
- Hongguang Ding
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ya Li
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Xusheng Li
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xinqiang Liu
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shenglong Chen
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Mengting Liu
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hongke Zeng
- Department of Emergency and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Wang F, Wang C, Shi J, Shan Y, Miao H, Sun T, Zhou Y, Zhang Y. Lung ultrasound score assessing the pulmonary edema in pediatric acute respiratory distress syndrome received continuous hemofiltration therapy: a prospective observational study. BMC Pulm Med 2021; 21:40. [PMID: 33494739 PMCID: PMC7830818 DOI: 10.1186/s12890-021-01394-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 01/01/2021] [Indexed: 12/15/2022] Open
Abstract
Background Lung ultrasound score is a potential method for determining pulmonary edema in acute respiratory distress syndrome (ARDS). Continuous renal replacement therapy (CRRT) has become the preferred modality to manage fluid overload during ARDS. The aim of this study was to evaluate the value of lung ultrasound (LUS) score on assessing the effects of CRRT on pulmonary edema and pulmonary function in pediatric ARDS. Methods We conducted a prospective cohort study in 70 children with moderate to severe ARDS in a tertiary university pediatric intensive care unit from January 2016 to December 2019. 37 patients received CRRT (CRRT group) and 33 patients treated by conventional therapy (Non-CRRT group). LUS score was measured within 2 h identified ARDS as the value of 1st, and the following three days as the 2nd, 3rd, and 4th. We used Spearman correlation analysis to develop the relationship between LUS score and parameters related to respiratory dynamics, clinical outcomes as well as daily fluid balance during the first four days after ARDS diagnosed. Results The 1st LUS score in CRRT group were significantly higher than Non-CRRT group (P < 0.001), but the LUS score decreased gradually following CRRT (P < 0.001). LUS score was significantly correlated with Cdyn (dynamic lung compliance) (1st: r = − 0.757, 2nd: r = − 0.906, 3rd: r = − 0.885, 4th: r = − 0.834), OI (oxygenation index) (1st: r = 0.678, 2nd: r = 0.689, 3rd: r = 0.486, 4th: r = 0.324) based on 1st to 4th values (all P < 0.05). Only values of the 3rd and 4th LUS score after ARDS diagnosed were correlated with duration of mechanical ventilation [1st: r = 0.167, P = 0.325; 2nd: r = 0.299, P = 0.072; 3rd: r = 0.579, P < 0.001; 4th: r = 0.483, P = 0.002]. LUS score decreased from 22 (18–25) to 15 (13–18) and OI decreased from 15.92 (14.07–17.73) to 9.49 (8.70–10.58) after CRRT for four days (both P < 0.001). Conclusions LUS score is significantly correlated with lung function parameters in pediatric ARDS. The improvement of pulmonary edema in patient with ARDS received CRRT can be assessed by the LUS score. Trial registration CCTR, ChiCTR-ONC-16009698. Registered 1 November 2016, prospectively registered, http://www.chictr.org.cn/edit.aspx?pid=16535&htm=4. This study adheres to CONSORT guidelines.
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Affiliation(s)
- Fei Wang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Chunxia Wang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China.,Institute of Pediatric Critical Care, Shanghai Jiao Tong University, No.355 Luding Road, Putuo District, Shanghai, 200062, China
| | - Jingyi Shi
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yijun Shan
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Huijie Miao
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Ting Sun
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yiping Zhou
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yucai Zhang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China. .,Institute of Pediatric Critical Care, Shanghai Jiao Tong University, No.355 Luding Road, Putuo District, Shanghai, 200062, China.
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Cui YQ, Ding XF, Liang HY, Wang D, Zhang XJ, Li LF, Kan QC, Wang LX, Sun TW. Efficacy and safety of low-dose corticosteroids for acute respiratory distress syndrome: A systematic review and meta-analysis. World J Emerg Med 2021; 12:207-213. [PMID: 34141036 DOI: 10.5847/wjem.j.1920-8642.2021.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND There are conflicting results regarding whether corticosteroids have better efficacy than placebo in acute respiratory distress syndrome (ARDS) patients. Therefore, we aim to further evaluate the efficacy and safety of corticosteroids in adult ARDS patients. METHODS The databases, including Medline, EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL) in the Cochrane Library, were searched from their inception to May 2, 2020. Randomized controlled trials (RCTs) and observational cohort studies were selected to assess the use of corticosteroids in adult ARDS patients. The quality of the results was judged by the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. The inverse-variance method with random or fixed effects modeling was used to compute pooled odds ratio (OR), standardized mean difference (SMD), and their 95% confidence interval (CI). RESULTS Eight eligible RCTs and six cohort studies were included. The use of corticosteroids was associated with reduced mortality (OR 0.57, 95% CI 0.43-0.76, I2=35.1%, P=0.148) in ARDS patients, and the result was confirmed in the included cohort studies (OR 0.51, 95% CI 0.27-0.95, I2=66.7%, P=0.010). The subgroup analysis stratified by the initiation time and duration of corticosteroid use showed that early ARDS and prolonged corticosteroid use had significant survival benefits in the RCTs. The low-dose corticosteroid use was also associated with significantly more ventilator-free days and a reduced rate of new infections in ARDS patients. CONCLUSIONS The low-dose corticosteroid therapy may be safe and reduce mortality, especially in patients with prolonged treatment and early ARDS.
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Affiliation(s)
- Yu-Qing Cui
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
| | - Xian-Fei Ding
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
| | - Huo-Yan Liang
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
| | - Dong Wang
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
| | - Xiao-Juan Zhang
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
| | - Li-Feng Li
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Quan-Cheng Kan
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Le-Xin Wang
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga 2650, Australia
| | - Tong-Wen Sun
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China
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Singh K, Ventour D, Cipriani S. The critically ill patient with COVID-19 and ARDS: Providing rational solutions to new and old challenges. CARIBBEAN MEDICAL JOURNAL 2020. [DOI: 10.48107/cmj.2020.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Keevan Singh
- 1University of the West Indies. Anaesthesia & Intensive Care Unit. St Augustine, Trinidad. 2San Fernando General Hospital. Anaesthesia & Intensive Care Unit. San Fernando. Trinidad
| | - Dale Ventour
- 1University of the West Indies. Anaesthesia & Intensive Care Unit. St Augustine, Trinidad. 3Eric Williams Medical Sciences Complex. Anaesthesia & Intensive Care Unit. Mt. Hope. Trinidad
| | - Sophia Cipriani
- San Fernando General Hospital. Anaesthesia & Intensive Care Unit. San Fernando. Trinidad
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Singh D, Wasan H, Reeta KH. Heme oxygenase-1 modulation: A potential therapeutic target for COVID-19 and associated complications. Free Radic Biol Med 2020; 161:263-271. [PMID: 33091573 PMCID: PMC7571447 DOI: 10.1016/j.freeradbiomed.2020.10.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 12/12/2022]
Abstract
Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to infect hundred thousands of people every day worldwide. Since it is a novel virus, research continues to update the possible therapeutic targets when new evidence regarding COVID-19 are gathered. This article presents an evidence-based hypothesis that activating the heme oxygenase-1 (HO-1) pathway is a potential target for COVID-19. Interferons (IFNs) have broad-spectrum antiviral activity including against SARS-CoV-2. Induction of HO-1 and increase in the heme catabolism end-product confer antiviral activity. IFN activation results in inhibition of viral replication in various viral infections. COVID-19 induced inflammation as well as acute respiratory distress syndrome (ARDS), and coagulopathies are now known major causes of mortality. A protective role of HO-1 induction in inflammation, inflammation-induced coagulation, and ARDS has been reported. Based on an association of HO-1 promoter polymorphisms and disease severity, we propose an evaluation of the status of these polymorphisms in COVID-19 patients who become severely ill. If an association is established, it might be helpful in identifying patients at high risk. Hence, we hypothesize that HO-1 pathway activation could be a therapeutic strategy against COVID-19 and associated complications.
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Affiliation(s)
- Devendra Singh
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Himika Wasan
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - K H Reeta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India.
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