1
|
Yang X, Zhu L, Pan H, Yang Y. Cardiopulmonary bypass associated acute kidney injury: better understanding and better prevention. Ren Fail 2024; 46:2331062. [PMID: 38515271 PMCID: PMC10962309 DOI: 10.1080/0886022x.2024.2331062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
Cardiopulmonary bypass (CPB) is a common technique in cardiac surgery but is associated with acute kidney injury (AKI), which carries considerable morbidity and mortality. In this review, we explore the range and definition of CPB-associated AKI and discuss the possible impact of different disease recognition methods on research outcomes. Furthermore, we introduce the specialized equipment and procedural intricacies associated with CPB surgeries. Based on recent research, we discuss the potential pathogenesis of AKI that may result from CPB, including compromised perfusion and oxygenation, inflammatory activation, oxidative stress, coagulopathy, hemolysis, and endothelial damage. Finally, we explore current interventions aimed at preventing and attenuating renal impairment related to CPB, and presenting these measures from three perspectives: (1) avoiding CPB to eliminate the fundamental impact on renal function; (2) optimizing CPB by adjusting equipment parameters, optimizing surgical procedures, or using improved materials to mitigate kidney damage; (3) employing pharmacological or interventional measures targeting pathogenic factors.
Collapse
Affiliation(s)
- Xutao Yang
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
| | - Li Zhu
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
- The Jinhua Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China
| | - Hong Pan
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
| | - Yi Yang
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
| |
Collapse
|
2
|
Li WJ, Peng YX, Zhao LQ, Wang HY, Liu W, Bai K, Chen S, Lu YN, Huang JH. T-cell lymphopenia is associated with an increased infecting risk in children after cardiopulmonary bypass. Pediatr Res 2024; 95:227-232. [PMID: 37580551 DOI: 10.1038/s41390-023-02765-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/14/2023] [Accepted: 07/16/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND children who undergo CPB operations are at an elevated risk of infection due to immunosuppression. This study aims to investigate the association between lymphopenia following CPB and early postoperative infection in children. METHODS A retrospective analysis including 41 children under 2 years old underwent CPB. Among them, 9 subjects had an early postoperative infection, and 32 subjects were period-matched without infection. Inflammatory cytokines, serum CRP and PCT values were measured in plasma, additionally, circulating total leucocyte and lymphocyte subpopulations were counted. RESULTS Infected subjects exhibited significantly higher levels of inflammatory cytokines, including IL-6, IL-8, IL-10, IL-1β and TNF-α, than non-infected subjects after CPB. Additionally, lower absolute number of lymphocyte and their subpopulations CD3+ T cells, CD4+ T-helper cells and CD8+cytotoxic T-cells, were observed in infected subjects. The impairment of T-cells Immune was found to be associated with higher levels of inflammatory cytokines IL-10. The ROC demonstrated that the absolute number of CD3+ T-cells <1934/ul, CD4+ T helper cells <1203/ul and CD8+cytotoxic T-cells <327/ul were associated with early postoperative infection. CONCLUSION Higher levels of inflammatory cytokines resulted in T-cells lymphopenia after CPB, which significantly increasing the risk of postoperative infection in infants and young children. IMPACT Infection complications after cardiopulmonary bypass (CPB) in pediatric CHD patients are serious issues, identifing the infection from after CPB remains a challenging. CPB can release numerous inflammatory cytokines associated with T cells lymphopenia, which increases the risk of postoperative infection after surgery. Monitoring T cells lymphopenia maybe more beneficial to predict early postoperative infection than C-reactive protein and procalcitonin.
Collapse
Affiliation(s)
- Wen-Juan Li
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yong-Xuan Peng
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Li-Qing Zhao
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Hui-Ying Wang
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Wei Liu
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Kai Bai
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Sun Chen
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Ya-Nan Lu
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Ji-Hong Huang
- Department of Pediatric Cardiology, Xinhua Hospital, affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
| |
Collapse
|
3
|
Ziogas A, Bruno M, van der Meel R, Mulder WJM, Netea MG. Trained immunity: Target for prophylaxis and therapy. Cell Host Microbe 2023; 31:1776-1791. [PMID: 37944491 DOI: 10.1016/j.chom.2023.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 07/27/2023] [Accepted: 10/15/2023] [Indexed: 11/12/2023]
Abstract
Trained immunity is a de facto memory for innate immune responses, leading to long-term functional reprogramming of innate immune cells. In physiological conditions, trained immunity leads to adaptive states that enhance resistance against pathogens and contributes to immunosurveillance. Dysregulated trained immunity can however lead either to defective innate immune responses in severe infections or cancer or to inflammatory and autoimmune diseases if trained immunity is inappropriately activated. Here, we review the immunological and molecular mechanisms that mediate trained immunity induction and propose that trained immunity represents an important target for prophylactic and therapeutic approaches in human diseases. On the one hand, we argue that novel approaches that induce trained immunity may enhance vaccine efficacy. On the other hand, induction of trained immunity in cancer, and inhibition of exaggerated induction of trained immunity in inflammatory disorders, are viable targets amenable for new therapeutic approaches.
Collapse
Affiliation(s)
- Athanasios Ziogas
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Centre, Nijmegen, the Netherlands.
| | - Mariolina Bruno
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Roy van der Meel
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Willem J M Mulder
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Centre, Nijmegen, the Netherlands; Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Centre, Nijmegen, the Netherlands; Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands; Department of Immunology and Metabolism, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| |
Collapse
|
4
|
Neves FL, Amaral MNGA, da Silva SFD, Silva IMM, Laranjeira PMDS, Pinto CRDJ, Paiva AA, Dias ASDS, Coelho MLACV. Immunoparalysis in critically ill children. Immunology 2023; 168:597-609. [PMID: 36279244 DOI: 10.1111/imm.13595] [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: 05/12/2022] [Accepted: 10/20/2022] [Indexed: 11/30/2022] Open
Abstract
Immunoparalysis is associated with poorer outcomes in the paediatric intensive care unit (PICU) setting. We aimed to determine the group of patients with higher chances of immunoparalysis and correlate this status with increased risks of nosocomial infection and adverse clinical parameters. We conducted an exploratory study with prospective data collection in a university-affiliated tertiary medical, surgical, and cardiac PICU. Fifteen patients with multiple organ dysfunction syndrome were included over a period of 6 months. Monocyte's human leucocyte antigen (HLA)-DR expression and tumour necrosis factor (TNF)-α and interleukin (IL)-6 production were measured by flow-cytometry at three time points (T1 = 1-2 days; T2 = 3-5 days; T3 = 6-8 days). Using the paediatric logistic organ dysfunction-2 score to assess initial disease severity, we established the optimal cut-off values of the evaluated parameters to identify the subset of patients with a higher probability of immunoparalysis. A comparative analysis was performed between them. Sixty per cent were males; the median age was 4.1 years. Considering the presence of two criteria in T1 (classical monocytes mean fluorescence intensity [MFI] for HLA-DR ≤ 1758.5, area under the curve (AUC) = 0.775; and frequency of monocytes producing IL-6 ≤ 68.5%, AUC = 0.905) or in T3 (classical monocytes MFI of HLA-DR ≤ 2587.5, AUC = 0.675; and frequency of monocytes producing TNF-α ≤ 93.5%, AUC = 0.833), a variable to define immunoparalysis was obtained (100% sensitivity, 81.5% specificity). Forty per cent of patients were assigned to the immunoparalysis group. In this: a higher frequency of nosocomial infection (p = 0.011), vasoactive inotropic score (p = 0.014) and length of hospital stay (p = 0.036) was observed. In the subgroup with the diagnosis of sepsis/septic shock (n = 5), patients showed higher percentages of non-classical monocytes (p = 0.004). No mortality was recorded. A reduction in classical monocytes HLA-DR expression with lower frequencies of monocytes producing TNF-α and IL-6 during the first week of critical illness, appears to be a good marker of immunoparalysis; these findings relate to an increased risk of nosocomial infection and deleterious outcomes. The increased frequency of non-classical monocytes in patients with sepsis/septic shock is suggestive of a better prognosis.
Collapse
Affiliation(s)
- Filipa Loureiro Neves
- Pediatric Intensive Care Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Children and Women Department, Centro Hospitalar do Médio Tejo, Torres Novas, Portugal
| | | | - Sandra Filomena Durães da Silva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Isabel Maria Melo Silva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Paula Margarida Dos Santos Laranjeira
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR) - Group of Environment, Genetics and Oncobiology (CIMAGO) - Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Carla Regina de Jesus Pinto
- Pediatric Intensive Care Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Artur Augusto Paiva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR) - Group of Environment, Genetics and Oncobiology (CIMAGO) - Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Instituto Politécnico de Coimbra, ESTESC-Coimbra Health School, Ciências Biomédicas Laboratoriais, Coimbra, Portugal
| | - Andrea Sofia da Silva Dias
- Pediatric Intensive Care Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | | |
Collapse
|
5
|
Singh A, Goyal A, Singh M, Garg S, Moudgil S, Gupta V. Cerebral Fungal Infections as a Cause of Stroke in Cardiac Surgery Patients: Be Cautious!! J Cardiothorac Vasc Anesth 2023:S1053-0770(23)00225-2. [PMID: 37121843 DOI: 10.1053/j.jvca.2023.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 03/27/2023] [Indexed: 05/02/2023]
Affiliation(s)
- Avneet Singh
- Department of Anesthesia and Intensive Care, Government Medical College and Hospital, Chandigarh, India.
| | - Arushi Goyal
- Department of Anesthesia and Intensive Care, Government Medical College and Hospital, Chandigarh, India
| | - Manpreet Singh
- Department of Anesthesia and Intensive Care, Government Medical College and Hospital, Chandigarh, India
| | - Sidharth Garg
- Department of General Surgery, Government Medical College and Hospital, Chandigarh, India
| | - Sandeep Moudgil
- Department of Radiodiagnosis, Government Medical College and Hospital, Chandigarh, India
| | - Vipin Gupta
- Department of Neurosurgery, Government Medical College and Hospital, Chandigarh, India
| |
Collapse
|
6
|
Babu S, Sreedhar R, Munaf M, Gadhinglajkar SV. Sepsis in the Pediatric Cardiac Intensive Care Unit: An Updated Review. J Cardiothorac Vasc Anesth 2023; 37:1000-1012. [PMID: 36922317 DOI: 10.1053/j.jvca.2023.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/25/2023] [Accepted: 02/06/2023] [Indexed: 02/13/2023]
Abstract
Sepsis remains among the most common causes of mortality in children with congenital heart disease (CHD). Extensive literature is available regarding managing sepsis in pediatric patients without CHD. Because the cardiovascular pathophysiology of children with CHD differs entirely from their typical peers, the available diagnosis and management recommendations for sepsis cannot be implemented directly in children with CHD. This review discusses the risk factors, etiopathogenesis, available diagnostic tools, resuscitation protocols, and anesthetic management of pediatric patients suffering from various congenital cardiac lesions. Further research should focus on establishing a standard guideline for managing children with CHD with sepsis and septic shock admitted to the intensive care unit.
Collapse
Affiliation(s)
- Saravana Babu
- Division of Cardiothoracic and Vascular Anesthesia, Sree Chitra Tirunal institute for medical sciences and technology, Trivandrum, India.
| | - Rupa Sreedhar
- Division of Cardiothoracic and Vascular Anesthesia, Sree Chitra Tirunal institute for medical sciences and technology, Trivandrum, India
| | - Mamatha Munaf
- Division of Cardiothoracic and Vascular Anesthesia, Sree Chitra Tirunal institute for medical sciences and technology, Trivandrum, India
| | - Shrinivas V Gadhinglajkar
- Division of Cardiothoracic and Vascular Anesthesia, Sree Chitra Tirunal institute for medical sciences and technology, Trivandrum, India
| |
Collapse
|
7
|
Martinez MJ, Schwingshackl A, Romero T, Roach GD, Belperio JA, Federman MD. Cell saver blood transfusions may be associated with a decrease in inflammation and improved outcome measures in pediatric cardiac surgery patients. Perfusion 2022; 38:717-724. [PMID: 35411827 DOI: 10.1177/02676591221078420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Cardiopulmonary bypass (CPB) is a requisite for correction of congenital heart disease by open-heart surgery and induces a systemic inflammatory response that can lead to complications such as acute lung injury and acute kidney injury. In addition, blood transfusions are commonly required for this type of surgery, and they may further exacerbate this inflammatory response and increase morbidity and mortality. We hypothesized that, in contrast to red blood cells, intraoperative cell saver (CS) blood transfusions attenuate the post-CPB proinflammatory cytokine response. METHODS Serum cytokine concentrations of IL-10, IL-1RA, IL-6, IL-8, and TNF-α were measured at four time points (preoperatively and postoperatively on postoperative days 0, 1, and 2). RESULTS Anti-inflammatory IL-10 levels were significantly lower in the CS group on POD 0 than in the control group (mean 1083.2 pg/mL vs 2080.2 pg/mL, 95%CI 357.4-1636.6, p = .0026). Of the clinical parameters measured, mean BUN and creatinine levels on POD 2 were significantly lower in the CS group (13.79 vs 21.88, p = .004 and 0.45 vs 0.55, p = .055, respectively). In addition, the duration of milrinone use decreased by 80% in the CS group (0.20, 95%CI 0.04, 0.94; p = .048), the median time to extubation in hours was significantly lower in the CS group (3.5 vs 6.5; 95%CI -38.00, -0.50; p = .026), and hospital length of stay was decreased by 60% in the CS group (p = .003). CONCLUSIONS CS transfusions in children may lower postoperative anti-inflammatory IL-10 levels, possibly due to an overall decrease in proinflammatory state, and may be associated with improvements in renal and pulmonary functions.
Collapse
Affiliation(s)
- Michael J Martinez
- Division of Critical Care Medicine, Department of Pediatrics, 549938Mattel Children's Hospital at UCLA, Los Angeles, CA, USA
| | - Andreas Schwingshackl
- Division of Critical Care Medicine, Department of Pediatrics, 549938Mattel Children's Hospital at UCLA, Los Angeles, CA, USA
| | - Tahmineh Romero
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, Los Angeles, CA, USA
| | - Gavin D Roach
- Division of Hematology and Oncology, Department of Pediatrics, 549938Mattel Children's Hospital at UCLA, Los Angeles, CA, USA
| | - John A Belperio
- Division of Pulmonary, Critical Care Medicine, Allergy and Clinical Immunology, Department of Medicine, The David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Myke D Federman
- Division of Critical Care Medicine, Department of Pediatrics, 549938Mattel Children's Hospital at UCLA, Los Angeles, CA, USA
| |
Collapse
|
8
|
Farhat MH, Shadley JD, Halligan NL, Hall MW, Popova AP, Quasney MW, Dahmer MK. Differences in the Genomic Profiles of Immunoparalyzed and Nonimmunoparalyzed Children With Sepsis: A Pilot Study. Pediatr Crit Care Med 2022; 23:79-88. [PMID: 35119428 PMCID: PMC10993860 DOI: 10.1097/pcc.0000000000002860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Sepsis-induced immunoparalysis represents a pathologic downregulation of leukocyte function shown to be associated with adverse outcomes, although its mechanisms remain poorly understood. Our goal was to compare genome-wide gene expression profiles of immunoparalyzed and nonimmunoparalyzed children with sepsis to identify genes and pathways associated with immunoparalysis. DESIGN Prospective observational study. PATIENTS Twenty-six children with lower respiratory tract infection meeting criteria for sepsis, severe sepsis, or septic shock admitted to the PICU. SETTING Two tertiary care PICUs. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Innate immune function was assayed ex vivo by measuring release of tumor necrosis factor-α from whole blood after incubation with lipopolysaccharide for 4 hours. Immunoparalysis was defined as a tumor necrosis factor-α production capacity less than 200 pg/mL. Ten of the 26 children were immunoparalyzed. There were 17 significant differentially expressed genes when comparing genome-wide gene expression profiles of immunoparalyzed and nonimmunoparalyzed children (false discovery rate < 0.05). Nine genes showed increased expression in immunoparalyzed children (+1.5- to +8.8-fold change). Several of these dampen the immune system. Eight showed decreased expression in immunoparalyzed children (-1.7- to -3.9-fold change), several of which are involved in early regulation and activation of immune function. Functional annotation clustering using differentially expressed genes with p value of less than 0.05 showed three clusters related to immunity with significant enrichment scores (2.2-4.5); the most significant gene ontology terms in these clusters were antigen processing and presentation and negative regulation of interleukin-6 production. Network analysis identified potential protein interactions that may be involved in the development of immunoparalysis in children. CONCLUSIONS In this exploratory analysis, immunoparalyzed children with sepsis showed increased expression of genes that dampen the immune system and decreased expression of genes involved in regulation and activation of the immune system. Analysis also implicated other proteins as potentially having as yet unidentified roles in the development of immunoparalysis.
Collapse
Affiliation(s)
- Mohamed Hani Farhat
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| | - Jeffery D. Shadley
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| | - Nadine L.N. Halligan
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| | - Mark W. Hall
- Division of Critical Care Medicine, Department of Pediatrics, Nationwide Children’s Hospital, Columbus, OH
| | - Antonia P. Popova
- Division of Pulmonology, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| | - Michael W. Quasney
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| | - Mary K. Dahmer
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, C.S. Mott Children’s Hospital, Ann Arbor, Michigan
| |
Collapse
|
9
|
Hall MW, Carcillo JA, Cornell T. Immune System Dysfunction Criteria in Critically Ill Children: The PODIUM Consensus Conference. Pediatrics 2022; 149:S91-S98. [PMID: 34970674 PMCID: PMC9166150 DOI: 10.1542/peds.2021-052888n] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2021] [Indexed: 11/24/2022] Open
Abstract
CONTEXT Immune system dysfunction is poorly represented in pediatric organ dysfunction definitions. OBJECTIVE To evaluate evidence for criteria that define immune system dysfunction in critically ill children and associations with adverse outcomes and develop consensus criteria for the diagnosis of immune system dysfunction in critically ill children. DATA SOURCES We conducted electronic searches of PubMed and Embase from January 1992 to January 2020, using medical subject heading terms and text words to define immune system dysfunction and outcomes of interest. STUDY SELECTION Studies of critically ill children with an abnormality in leukocyte numbers or function that is currently measurable in the clinical laboratory in which researchers assessed patient-centered outcomes were included. Studies of adults or premature infants, animal studies, reviews and commentaries, case series (≤10 subjects), and studies not published in English with inability to determine eligibility criteria were excluded. DATA EXTRACTION Data were abstracted from eligible studies into a standard data extraction form along with risk of bias assessment by a task force member. RESULTS We identified the following criteria for immune system dysfunction: (1) peripheral absolute neutrophil count <500 cells/μL, (2) peripheral absolute lymphocyte count <1000 cells/μL, (3) reduction in CD4+ lymphocyte count or percentage of total lymphocytes below age-specific thresholds, (4) monocyte HLA-DR expression <30%, or (5) reduction in ex vivo whole blood lipopolysaccharide-induced TNFα production capacity below manufacturer-provided thresholds. LIMITATIONS Many measures of immune system function are currently limited to the research environment. CONCLUSIONS We present consensus criteria for the diagnosis of immune system dysfunction in critically ill children.
Collapse
Affiliation(s)
- Mark W. Hall
- Division of Critical Care Medicine, Department of Pediatrics, College of Medicine, The Ohio State University and Nationwide Children’s Hospital, Columbus, Ohio
| | - Joseph A. Carcillo
- Division of Pediatric Critical Care Medicine, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh and Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania
| | - Timothy Cornell
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, School of Medicine, Stanford University and Lucile Packard Children’s Hospital Stanford, Palo Alto, California
| |
Collapse
|
10
|
Aghagoli G, Del Re A, Yano N, Zhang Z, Gheit AA, Phillips RK, Sellke FW, Fedulov AV. Methylome of skeletal muscle tissue in patients with hypertension and diabetes undergoing cardiopulmonary bypass. Epigenomics 2021; 13:1853-1866. [PMID: 34802257 PMCID: PMC8619827 DOI: 10.2217/epi-2021-0388] [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: 10/08/2021] [Accepted: 11/08/2021] [Indexed: 11/21/2022] Open
Abstract
Background: Epigenomic changes occurring during surgery have been neglected in research; diabetes and hypertension can affect the epigenome but little is known about the epigenetics of skeletal muscle (SKM). Methods: DNA methylation was profiled via Illumina MethylationEPIC arrays in SKM samples obtained at the beginning and end of heart surgery with cardiopulmonary bypass. Results: Methylation in patients with hypertension and diabetes was significantly different, more so for uncontrolled diabetes; hypertension alone produced minimal effect. The affected pathways involved IL-1, IL-12, IL-18, TNF-α, IFN-γ, VEGF, NF-κB and Wnt signaling, apoptosis and DNA damage response. Significant changes occurred during surgery and included loci in the Hippo-YAP/TAZ pathway. Conclusion: Cardiopulmonary bypass surgery affects the SKM methylome, and the combination of hypertension and diabetes induces changes in the SKM epigenome in contrast to hypertension alone.
Collapse
Affiliation(s)
- Ghazal Aghagoli
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Andrew Del Re
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Naohiro Yano
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Zhiqi Zhang
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Ahmad Aboul Gheit
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Ronald K Phillips
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Frank W Sellke
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| | - Alexey V Fedulov
- Alpert Medical School of Brown University, Department of Surgery, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, USA
| |
Collapse
|
11
|
CheheiliSobbi S, Peters van Ton AM, Wesselink EM, Looije MF, Gerretsen J, Morshuis WJ, Slooter AJC, Abdo WF, Pickkers P, van den Boogaard M. Case-control study on the interplay between immunoparalysis and delirium after cardiac surgery. J Cardiothorac Surg 2021; 16:239. [PMID: 34425856 PMCID: PMC8381527 DOI: 10.1186/s13019-021-01627-3] [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: 11/25/2020] [Accepted: 08/15/2021] [Indexed: 11/23/2022] Open
Abstract
Background Delirium occurs frequently following cardiothoracic surgery, and infectious disease is an important risk factor for delirium. Surgery and cardiopulmonary bypass induce suppression of the immune response known as immunoparalysis. We aimed to investigate whether delirious patients had more pronounced immunoparalysis following cardiothoracic surgery than patients without delirium, to explain this delirium-infection association. Methods A prospective matched case–control study was performed in two university hospitals. Cytokine production (tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-8 and IL-10) of ex vivo lipopolysaccharide (LPS)-stimulated whole blood was analyzed in on-pump cardiothoracic surgery patients preoperatively, and at 5 timepoints up to 3 days after cardiothoracic surgery. Delirium was assessed by trained staff using two validated delirium scales and chart review. Results A total of 89 patients were screened of whom 14 delirious and 52 non-delirious patients were included. Ex vivo-stimulated production of TNF-α, IL-6, IL-8, and IL-10 was severely suppressed following cardiothoracic surgery compared to pre-surgery. Postoperative release of cytokines in non-delirious patients was attenuated by 84% [IQR: 13–93] for TNF-α, 95% [IQR: 78–98] for IL-6, and 69% [IQR: 55–81] for IL-10. The attenuation in ex vivo-stimulated production of these cytokines was not significantly different in patients with delirium compared to non-delirious patients (p > 0.10 for all cytokines). Conclusions The post-operative attenuation of ex vivo-stimulated production of pro- and anti-inflammatory cytokines was comparable between patients that developed delirium and those who remained delirium-free after on-pump cardiothoracic surgery. This finding suggests that immunoparalysis is not more common in cardiothoracic surgery patients with delirium compared to those without.
Collapse
Affiliation(s)
- Shokoufeh CheheiliSobbi
- Department of Intensive Care Medicine, IP 707, Radboud Institute for Health Sciences, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.,Department of Cardiothoracic Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Annemieke M Peters van Ton
- Department of Intensive Care Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Esther M Wesselink
- Department of Intensive Care Medicine and UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marjolein F Looije
- Department of Intensive Care Medicine and UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jelle Gerretsen
- Department of Intensive Care Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wim J Morshuis
- Department of Cardiothoracic Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Arjen J C Slooter
- Department of Intensive Care Medicine and UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Wilson F Abdo
- Department of Intensive Care Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Peter Pickkers
- Department of Intensive Care Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mark van den Boogaard
- Department of Intensive Care Medicine, IP 707, Radboud Institute for Health Sciences, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
| |
Collapse
|
12
|
Liu CH, Huang ZH, Huang SC, Jou TS. Endocytosis of peroxiredoxin 1 links sterile inflammation to immunoparalysis in pediatric patients following cardiopulmonary bypass. Redox Biol 2021; 46:102086. [PMID: 34332210 PMCID: PMC8339339 DOI: 10.1016/j.redox.2021.102086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/19/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
After cardiopulmonary bypass (CPB), the occurrence of systemic inflammatory response is often accompanied by a persistent compensatory anti-inflammatory response syndrome that can lead to a compromised immune competence termed immunoparalysis, rendering the patients susceptible to infections which is a leading complication following cardiac surgery. However, the underlying mechanisms of CPB-elicited immunoparalysis remain obscure. In this study we showed that peroxiredoxin 1 (Prdx1), a putative cytosolic antioxidant, was released immediately after CPB in a cohort of pediatric patients receiving congenital cardiac surgery. This increased Prdx1 was correlated to a reduced human leukocyte antigen-DR expression and an elevated interleukin-10 (IL-10) production, as well as a hypo-responsiveness of macrophages to endotoxin and a higher incidence of nosocomial infection. We demonstrated that substitution of Ser83 for Cys83 prevented Prdx1 from oligomerization and subsequent binding and internalization to macrophages. These effects mitigated Prdx1-induced IL-10 induction and endotoxin tolerance. Furthermore, after engagement with toll-like receptor (TLR) 4, clathrin-dependent endocytosis is crucial for Prdx1 to elicit IL-10 production in phagocytes. Congruently, inhibition of Prdx1/TLR4 endocytosis in phagocytes reversed the Prdx1/IL-10-mediated hypo-responsiveness to endotoxin. Our findings unveiled the possible mechanisms by which Prdx1 undertakes to cause immunoparalysis, and targeting endocytosis of Prdx1 could be a novel therapeutic approach for postoperative infections associated with CPB. Cardiopulmonary bypass-elicited ischemia/reperfusion injury causes release of Prdx1. High molecular weight forms of Prdx1 interact with TLR4 to initiate sterile inflammation. Endocytosis of Prdx1/TLR4 induces IL-10 production that leads to immunoparalysis and subsequent septic inflammation. Inhibition of Prdx1/TLR4 endocytosis reverses Prdx1/IL-10-mediated hypo-responsiveness to endotoxin in phagocytes.
Collapse
Affiliation(s)
- Chia-Hsiung Liu
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Zheng-Hua Huang
- Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Shu-Chien Huang
- Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Tzuu-Shuh Jou
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, Taiwan; Center of Precision Medicine, College of Medicine, National Taiwan University, Taiwan.
| |
Collapse
|
13
|
Rhinovirus Detection in the Nasopharynx of Children Undergoing Cardiac Surgery Is Not Associated With Longer PICU Length of Stay: Results of the Impact of Rhinovirus Infection After Cardiac Surgery in Kids (RISK) Study. Pediatr Crit Care Med 2021; 22:e79-e90. [PMID: 33027243 DOI: 10.1097/pcc.0000000000002522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To determine whether children with asymptomatic carriage of rhinovirus in the nasopharynx before elective cardiac surgery have an increased risk of prolonged PICU length of stay. STUDY DESIGN Prospective, single-center, blinded observational cohort study. SETTING PICU in a tertiary hospital in The Netherlands. PATIENTS Children under 12 years old undergoing elective cardiac surgery were enrolled in the study after informed consent of the parents/guardians. INTERVENTIONS The parents/guardians filled out a questionnaire regarding respiratory symptoms. On the day of the operation, a nasopharyngeal swab was obtained. Clinical data were collected during PICU admission, and PICU/hospital length of stay were reported. If a patient was still intubated 3 days after operation, an additional nasopharyngeal swab was collected. Nasopharyngeal swabs were tested for rhinovirus and other respiratory viruses with polymerase chain reaction. MEASUREMENTS AND MAIN RESULTS Of the 163 included children, 74 (45%) tested rhinovirus positive. Rhinovirus-positive patients did not have a prolonged PICU length of stay (median 2 d each; p = 0.257). Rhinovirus-positive patients had a significantly shorter median hospital length of stay compared with rhinovirus-negative patients (8 vs 9 d, respectively; p = 0.006). Overall, 97 of the patients (60%) tested positive for one or more respiratory virus. Virus-positive patients had significantly shorter PICU and hospital length of stay, ventilatory support, and nonmechanical ventilation. Virus-negative patients had respiratory symptoms suspected for a respiratory infection more often. In 31% of the children, the parents reported mild upper respiratory complaints a day prior to the cardiac surgery, this was associated with postextubation stridor, but no other clinical outcome measures. CONCLUSIONS Preoperative rhinovirus polymerase chain reaction positivity is not associated with prolonged PICU length of stay. Our findings do not support the use of routine polymerase chain reaction testing for respiratory viruses in asymptomatic children admitted for elective cardiac surgery.
Collapse
|
14
|
Thakkar RK, Devine R, Popelka J, Hensley J, Fabia R, Muszynski JA, Hall MW. Measures of Systemic Innate Immune Function Predict the Risk of Nosocomial Infection in Pediatric Burn Patients. J Burn Care Res 2020; 42:488-494. [PMID: 33128368 DOI: 10.1093/jbcr/iraa193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Critical injury-induced immune suppression has been associated with adverse outcomes. This acquired form of immunosuppression is poorly understood in pediatric burn patients, who have infectious complication rates as high as 71%. Our primary objectives were to determine if thermal injury results in early innate immune dysfunction and is associated with increased risk for nosocomial infections (NI). We performed a prospective, longitudinal immune function observational study at a single pediatric burn center. Whole blood samples from burn patients within the first week of injury were used to assess innate immune function. Nosocomial infections were defined using CDC criteria. Immune parameters were compared between patients who went on to develop NI and those that did not. We enrolled a total of 34 patients with 12 developing a NI. Within the first 3 days of injury, children whom developed NI had significantly lower whole blood ex vivo LPS-induced TNFα production capacity (434 pg/mL vs 960 pg/mL, P = .0015), CD14+ monocyte counts (273 cells/µL vs 508 cells/µL, P = .01), and % HLA-DR expression on CD14+ monocytes (54% vs 92%, P = .02) compared with those that did not develop infection. Plasma cytokine levels did not have a significant difference between the NI and no NI groups. Early innate immune suppression can occur following pediatric thermal injury and appears to be a risk factor for the development of nosocomial infections. Plasma cytokines alone may not be a reliable predictor of the development of NI.
Collapse
Affiliation(s)
- Rajan K Thakkar
- Department of Pediatric Surgery, Burn Center, Nationwide Children's Hospital, Columbus, Ohio.,Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Racheal Devine
- Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Jill Popelka
- Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Josey Hensley
- Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Renata Fabia
- Department of Pediatric Surgery, Burn Center, Nationwide Children's Hospital, Columbus, Ohio
| | - Jennifer A Muszynski
- Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Division of Critical Care Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Mark W Hall
- Center for Clinical and Translation Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Division of Critical Care Medicine, Nationwide Children's Hospital, Columbus, Ohio
| |
Collapse
|
15
|
Dasturian F, Naderi N, Farshidfar G, Montazerghaem H, Khayatian M, Chegeni SA, Rahimzadeh M. The Relationship Between Serum Concentration of Interleukin-35 and FoxP3 Polymorphism in Patients Undergoing Coronary Artery Bypass Graft Surgery. Braz J Cardiovasc Surg 2020; 35:697-705. [PMID: 33118735 PMCID: PMC7598980 DOI: 10.21470/1678-9741-2019-0377] [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] [Indexed: 12/14/2022] Open
Abstract
Objective To investigate the association between interleukin-35 (IL-35) levels and single nucleotide polymorphisms (rs3761548, rs3761547) of the FoxP3 gene in coronary artery bypass grafting (CABG) patients. Methods We conducted a prospective study including 140 patients, who were scheduled for elective isolated on-pump CABG with cardiopulmonary bypass (CPB) from January 2017 to September 2018 in the Jorjani heart center. Blood samples were collected before and 12 hours after the operation. Serum levels of IL-35 were measured by enzyme-linked immunosorbent assay and the pattern of genetic variations was assessed using single specific primer-polymerase chain reaction. Results The serum concentrations of IL-35 after surgery were significantly higher than pre-surgery levels (18.4±8.3 vs. 9.89±3.2, respectively, P=0.002). There was no significant association between genotype frequencies of rs3761548 and rs3761547 and elevated IL-35 levels (P>0.05). There were significant associations between IL-35 levels and preoperative variables, including age (r=-0.34, P=0.047) and body mass index (r=-0.41, P=0.045), and intraoperative variables, including CPB time (r=0.4, P=0.02) and mean arterial pressure (r=-0.38, P=0.046), in carriers of the rs3761548 AA genotype. Conclusion Serum IL-35 concentrations were significantly increased in CPB patients, which may contribute to the post-CPB compensatory anti-inflammatory response syndrome. IL-35 increased levels were not influenced by FoxP3 promoter polymorphisms (rs3761548, rs3761547).
Collapse
Affiliation(s)
- Farzaneh Dasturian
- Hormozgan University of Medical Sciences Hormozgan Health Institute Molecular Medicine Research Center Bandar Abbas Iran Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Hormozgan University of Medical Sciences Faculty of Medicine Department of Biochemistry Bandar Abbas Iran Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Nadereh Naderi
- Hormozgan University of Medical Sciences Faculty of Medicine Department of Immunology Bandar Abbas Iran Department of Immunology, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Gholamreza Farshidfar
- Hormozgan University of Medical Sciences Hormozgan Health Institute Molecular Medicine Research Center Bandar Abbas Iran Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Hossein Montazerghaem
- Hormozgan University of Medical Sciences Cardiovascular Research Center Bandar Abbas Iran Cardiovascular Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mahmood Khayatian
- Hormozgan University of Medical Sciences Hormozgan Health Institute Molecular Medicine Research Center Bandar Abbas Iran Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Sara Aghakhani Chegeni
- Hormozgan University of Medical Sciences Hormozgan Health Institute Molecular Medicine Research Center Bandar Abbas Iran Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mahsa Rahimzadeh
- Hormozgan University of Medical Sciences Hormozgan Health Institute Molecular Medicine Research Center Bandar Abbas Iran Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Hormozgan University of Medical Sciences Faculty of Medicine Department of Biochemistry Bandar Abbas Iran Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Hormozgan University of Medical Sciences Cardiovascular Research Center Bandar Abbas Iran Cardiovascular Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| |
Collapse
|
16
|
Relland LM, Hall M, Martin DP, Nateri J, Hanson-Huber L, Beebe A, Samora W, Klamar J, Muszynski J, Tobias JD. Immune Function following Major Spinal Surgery and General Anesthesia. J Pediatr Intensive Care 2020; 10:248-255. [PMID: 34745697 DOI: 10.1055/s-0040-1716668] [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: 05/13/2020] [Accepted: 08/06/2020] [Indexed: 10/23/2022] Open
Abstract
There are reported differences in the effects that general anesthetics may have on immune function after minor surgery. To date, there are no prospective trials comparing total intravenous anesthesia (TIVA) with a volatile agent-based technique and its effects on immune function after major spinal surgery in adolescents. Twenty-six adolescents undergoing spinal fusion were randomized to receive TIVA with propofol-remifentanil or a volatile agent-based technique with desflurane-remifentanil. Immune function measures were based on the antigen-presenting and cytokine production capacity, and relative proportions of cell populations. Overall characteristics of the two groups did not differ in terms of perioperative times, hemodynamics, or fluid shifts, but those treated with propofol had lower bispectral index values. Experimental groups had relatively high baseline interleukin-10 values, but both showed a significant inflammatory response with similar changes in their respective immune functions. This included a shift toward a granulocytic predominance; a transient reduction in monocyte markers with significant decrease in antigen-presenting capacity and cytokine production capacity. Anesthetic choice does not appear to differentially impact immune function, but exposure to anesthetics and surgical trauma results in reproducibly measurable suppression of both innate and adaptive immunity in adolescents undergoing posterior spinal fusion. The magnitude of this suppression was modest when compared with pediatric and adult patients with critical illnesses. This study highlighted the need to evaluate immune function in a broader population of surgical patients with higher severity of illness.
Collapse
Affiliation(s)
- Lance M Relland
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, United States.,Center for Clinical and Translational Research, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Mark Hall
- Center for Clinical and Translational Research, Nationwide Children's Hospital, Columbus, Ohio, United States.,Department of Pediatrics, Division of Critical Care, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - David P Martin
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Jyotsna Nateri
- Center for Clinical and Translational Research, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Lisa Hanson-Huber
- Center for Clinical and Translational Research, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Allan Beebe
- Department of Orthopedic Surgery, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Walter Samora
- Department of Orthopedic Surgery, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Jan Klamar
- Department of Orthopedic Surgery, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Jennifer Muszynski
- Center for Clinical and Translational Research, Nationwide Children's Hospital, Columbus, Ohio, United States.,Department of Pediatrics, Division of Critical Care, Nationwide Children's Hospital, Columbus, Ohio, United States
| | - Joseph D Tobias
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, United States
| |
Collapse
|
17
|
Bline KE, Moore-Clingenpeel M, Hensley J, Steele L, Greathouse K, Anglim L, Hanson-Huber L, Nateri J, Muszynski JA, Ramilo O, Hall MW. Hydrocortisone treatment is associated with a longer duration of MODS in pediatric patients with severe sepsis and immunoparalysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2020; 24:545. [PMID: 32887651 PMCID: PMC7650515 DOI: 10.1186/s13054-020-03266-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 08/26/2020] [Indexed: 11/28/2022]
Abstract
Background Severe critical illness-induced immune suppression, termed immunoparalysis, is associated with longer duration of organ dysfunction in septic children. mRNA studies have suggested differential benefit of hydrocortisone in septic children based on their immune phenotype, but this has not been shown using a functional readout of the immune response. This study represents a secondary analysis of a prospectively conducted immunophenotyping study of pediatric severe sepsis to test the hypothesis that hydrocortisone will be differentially associated with clinical outcomes in children with or without immunoparalysis. Methods Children with severe sepsis/septic shock underwent blood sampling within 48 h of sepsis onset. Immune function was measured by quantifying whole blood ex vivo LPS-induced TNFα production capacity, with a TNFα response < 200 pg/ml being diagnostic of immunoparalysis. The primary outcome measure was number of days in 14 with MODS. Univariate and multivariable negative binomial regression models were used to examine associations between hydrocortisone use, immune function, and duration of MODS. Results One hundred two children were enrolled (age 75 [6–160] months, 60% male). Thirty-one subjects received hydrocortisone and were more likely to be older (106 [52–184] vs 38 [3–153] months, p = 0.04), to have baseline immunocompromise (32 vs 8%, p = 0.006), to have higher PRISM III (13 [8–18] vs 7 [5–13], p = 0.0003) and vasoactive inotrope scores (20 [10–35] vs 10 [3–15], p = 0.0002) scores, and to have more MODS days (3 [1–9] vs 1 [0–3], p = 0.002). Thirty-three subjects had immunoparalysis (TNFα response 78 [52–141] vs 641 [418–1047] pg/ml, p < 0.0001). Hydrocortisone use was associated with longer duration of MODS in children with immunoparalysis after adjusting for covariables (aRR 3.7 [1.8–7.9], p = 0.0006) whereas no association with MODS duration was seen in children without immunoparalysis (aRR 1.2 [0.6–2.3], p = 0.67). Conclusion Hydrocortisone use was independently associated with longer duration of MODS in septic children with immunoparalysis but not in those with more robust immune function. Prospective clinical trials using a priori immunophenotyping are needed to understand optimal hydrocortisone strategies in this population.
Collapse
Affiliation(s)
- Katherine E Bline
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA. .,Division of Critical Care Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA.
| | - Melissa Moore-Clingenpeel
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.,Biostatistics Resource at Nationwide Children's Hospital, Columbus, OH, USA
| | - Josey Hensley
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Lisa Steele
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Kristin Greathouse
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Larissa Anglim
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Lisa Hanson-Huber
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Jyotsna Nateri
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Jennifer A Muszynski
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.,Division of Critical Care Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA
| | - Octavio Ramilo
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.,Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, OH, USA
| | - Mark W Hall
- The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA.,Division of Critical Care Medicine, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA
| |
Collapse
|
18
|
Postbypass Immunoparalysis in Children: Observable, but Actionable? Ann Thorac Surg 2020; 111:1642. [PMID: 32698020 DOI: 10.1016/j.athoracsur.2020.05.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 11/22/2022]
|
19
|
Novak T, Hall MW, McDonald DR, Newhams MM, Mistry AJ, Panoskaltsis-Mortari A, Mourani PM, Loftis LL, Weiss SL, Tarquinio KM, Markovitz B, Hartman ME, Schwarz A, Junger WG, Randolph AG. RIG-I and TLR4 responses and adverse outcomes in pediatric influenza-related critical illness. J Allergy Clin Immunol 2020; 145:1673-1680.e11. [PMID: 32035159 PMCID: PMC7323584 DOI: 10.1016/j.jaci.2020.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Decreased TNF-α production in whole blood after ex vivo LPS stimulation indicates suppression of the Toll-like receptor (TLR)4 pathway. This is associated with increased mortality in pediatric influenza critical illness. Whether antiviral immune signaling pathways are also suppressed in these patients is unclear. OBJECTIVES We sought to evaluate suppression of the TLR4 and the antiviral retinoic acid-inducible gene-I (RIG-I) pathways with clinical outcomes in children with severe influenza infection. METHODS In this 24-center, prospective, observational cohort study of children with confirmed influenza infection, blood was collected within 72 hours of intensive care unit admission. Ex vivo whole blood stimulations were performed with matched controls using the viral ligand polyinosinic-polycytidylic acid-low-molecular-weight/LyoVec and LPS to evaluate IFN-α and TNF-α production capacities (RIG-I and TLR4 pathways, respectively). RESULTS Suppression of either IFN-α or TNF-α production capacity was associated with longer duration of mechanical ventilation and hospitalization, and increased organ dysfunction. Children with suppression of both RIG-I and TLR4 pathways (n = 33 of 103 [32%]) were more likely to have prolonged (≥7 days) multiple-organ dysfunction syndrome (30.3% vs 8.6%; P = .004) or prolonged hypoxemic respiratory failure (39.4% vs 11.4%; P = .001) compared with those with single- or no pathway suppression. CONCLUSIONS Suppression of both RIG-I and TLR4 signaling pathways, essential for respective antiviral and antibacterial responses, is common in previously immunocompetent children with influenza-related critical illness and is associated with bacterial coinfection and adverse outcomes. Prospective testing of both pathways may aid in risk-stratification and in immune monitoring.
Collapse
Affiliation(s)
- Tanya Novak
- Boston Children's Hospital, Department of Anesthesiology, Critical Care and Pain Medicine, Boston, Mass; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass; Department of Anesthesia, Harvard Medical School, Boston
| | - Mark W Hall
- Nationwide Children's Hospital, Division of Critical Care Medicine, Department of Pediatrics, Columbus, Ohio
| | - Douglas R McDonald
- Boston Children's Hospital, Division of Immunology and Harvard Medical School Department of Pediatrics, Boston, Mass
| | - Margaret M Newhams
- Boston Children's Hospital, Department of Anesthesiology, Critical Care and Pain Medicine, Boston, Mass
| | - Anushay J Mistry
- Boston Children's Hospital, Department of Anesthesiology, Critical Care and Pain Medicine, Boston, Mass
| | | | - Peter M Mourani
- Section of Critical Care Medicine, Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colo
| | - Laura L Loftis
- Section of Critical Care Medicine, Department of Pediatrics, Texas Children's Hospital, Houston, Tex
| | - Scott L Weiss
- Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Keiko M Tarquinio
- Division of Pediatric Critical Care Medicine, Children's Healthcare of Atlanta at Egleston, Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga
| | - Barry Markovitz
- Department of Anesthesiology Critical Care Medicine, Children's Hospital Los Angeles, Los Angeles, Calif
| | - Mary E Hartman
- Department of Pediatrics, St Louis Children's Hospital, St Louis, Mo
| | - Adam Schwarz
- Department of Pediatrics, Children's Hospital of Orange County, Orange, Calif
| | - Wolfgang G Junger
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass
| | - Adrienne G Randolph
- Boston Children's Hospital, Department of Anesthesiology, Critical Care and Pain Medicine, Boston, Mass; Department of Anesthesia, Harvard Medical School, Boston.
| |
Collapse
|
20
|
Myeloid-Derived Suppressor Cells Mediate Immunosuppression After Cardiopulmonary Bypass. Crit Care Med 2020; 47:e700-e709. [PMID: 31149961 DOI: 10.1097/ccm.0000000000003820] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Cardiopulmonary bypass is associated with severe immune dysfunctions. Particularly, a cardiopulmonary bypass-related long-lasting immunosuppressive state predisposes patients to a higher risk of postoperative complications, such as persistent bacterial infections. This study was conducted to elucidate mechanisms of post-cardiopulmonary bypass immunosuppression. DESIGN In vitro studies with human peripheral blood mononuclear cells. SETTING Cardiosurgical ICU, University Research Laboratory. PATIENTS Seventy-one patients undergoing cardiac surgery with cardiopulmonary bypass (enrolled May 2017 to August 2018). INTERVENTIONS Peripheral blood mononuclear cells before and after cardiopulmonary bypass were analyzed for the expression of immunomodulatory cell markers by real-time quantitative reverse transcription polymerase chain reaction. T cell effector functions were determined by enzyme-linked immunosorbent assay, carboxyfluorescein succinimidyl ester staining, and cytotoxicity assays. Expression of cell surface markers was assessed by flow cytometry. CD15 cells were depleted by microbead separation. Serum arginine was measured by mass spectrometry. Patient peripheral blood mononuclear cells were incubated in different arginine concentrations, and T cell functions were tested. MEASUREMENTS AND MAIN RESULTS After cardiopulmonary bypass, peripheral blood mononuclear cells exhibited significantly reduced levels of costimulatory receptors (inducible T-cell costimulator, interleukin 7 receptor), whereas inhibitory receptors (programmed cell death protein 1 and programmed cell death 1 ligand 1) were induced. T cell effector functions (interferon γ secretion, proliferation, and CD8-specific cell lysis) were markedly repressed. In 66 of 71 patients, a not yet described cell population was found, which could be characterized as myeloid-derived suppressor cells. Myeloid-derived suppressor cells are known to impair immune cell functions by expression of the arginine-degrading enzyme arginase-1. Accordingly, we found dramatically increased arginase-1 levels in post-cardiopulmonary bypass peripheral blood mononuclear cells, whereas serum arginine levels were significantly reduced. Depletion of myeloid-derived suppressor cells from post-cardiopulmonary bypass peripheral blood mononuclear cells remarkably improved T cell effector function in vitro. Additionally, in vitro supplementation of arginine enhanced T cell immunocompetence. CONCLUSIONS Cardiopulmonary bypass strongly impairs the adaptive immune system by triggering the accumulation of myeloid-derived suppressor cells. These myeloid-derived suppressor cells induce an immunosuppressive T cell phenotype by increasing serum arginine breakdown. Supplementation with L-arginine may be an effective measure to counteract the onset of immunoparalysis in the setting of cardiopulmonary bypass.
Collapse
|
21
|
Perros AJ, Esguerra‐Lallen A, Rooks K, Chong F, Engkilde‐Pedersen S, Faddy HM, Hewlett E, Naidoo R, Tung J, Fraser JF, Tesar P, Ziegenfuss M, Smith S, O’Brien D, Flower RL, Dean MM. Coronary artery bypass grafting is associated with immunoparalysis of monocytes and dendritic cells. J Cell Mol Med 2020; 24:4791-4803. [PMID: 32180339 PMCID: PMC7176880 DOI: 10.1111/jcmm.15154] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 02/06/2023] Open
Abstract
Coronary artery bypass grafting (CABG) triggers a systemic inflammatory response that may contribute to adverse outcomes. Dendritic cells (DC) and monocytes are immunoregulatory cells potentially affected by CABG, contributing to an altered immune state. This study investigated changes in DC and monocyte responses in CABG patients at 5 time-points: admission, peri-operative, ICU, day 3 and day 5. Whole blood from 49 CABG patients was used in an ex vivo whole blood culture model to prospectively assess DC and monocyte responses. Lipopolysaccharide (LPS) was added in parallel to model responses to an infectious complication. Co-stimulatory and adhesion molecule expression and intracellular mediator production was measured by flow cytometry. CABG modulated monocyte and DC responses. In addition, DC and monocytes were immunoparalysed, evidenced by failure of co-stimulatory and adhesion molecules (eg HLA-DR), and intracellular mediators (eg IL-6) to respond to LPS stimulation. DC and monocyte modulation was associated with prolonged ICU length of stay and post-operative atrial fibrillation. DC and monocyte cytokine production did not recover by day 5 post-surgery. This study provides evidence that CABG modulates DC and monocyte responses. Using an ex vivo model to assess immune competency of CABG patients may help identify biomarkers to predict adverse outcomes.
Collapse
Affiliation(s)
- Alexis J. Perros
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- School of MedicineUniversity of QueenslandBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
| | - Arlanna Esguerra‐Lallen
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
- Adult Intensive Care ServicesThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Kelly Rooks
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
| | - Fenny Chong
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
| | - Sanne Engkilde‐Pedersen
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
- Adult Intensive Care ServicesThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Helen M. Faddy
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- School of MedicineUniversity of QueenslandBrisbaneQLDAustralia
- Faculty of HealthQueensland University of TechnologyBrisbaneQLDAustralia
- School of Health and Sport SciencesUniversity of the Sunshine CoastPetrieQLDAustralia
| | - Elise Hewlett
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
| | - Rishendran Naidoo
- Cardiothoracic Surgery ProgramThe Prince Charles HospitalBrisbaneQLDAustralia
| | - John‐Paul Tung
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- School of MedicineUniversity of QueenslandBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
- Faculty of HealthQueensland University of TechnologyBrisbaneQLDAustralia
| | - John F. Fraser
- School of MedicineUniversity of QueenslandBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
- Adult Intensive Care ServicesThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Peter Tesar
- Cardiothoracic Surgery ProgramThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Marc Ziegenfuss
- Adult Intensive Care ServicesThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Susan Smith
- Cardiothoracic Surgery ProgramThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Donalee O’Brien
- Cardiothoracic Surgery ProgramThe Prince Charles HospitalBrisbaneQLDAustralia
| | - Robert L. Flower
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- Faculty of HealthQueensland University of TechnologyBrisbaneQLDAustralia
| | - Melinda M. Dean
- Research and DevelopmentAustralian Red Cross LifebloodBrisbaneQLDAustralia
- Critical Care Research Group (CCRG)The Prince Charles HospitalBrisbaneQLDAustralia
- School of Health and Sport SciencesUniversity of the Sunshine CoastPetrieQLDAustralia
| |
Collapse
|
22
|
Abstract
Extracorporeal life support (ECLS) is a widely used lifesaving technology. Whether ECLS results in immune dysregulation is unclear. This study's aim was to examine whether ECLS affected innate immune response. All patients placed on ECLS were eligible. Blood was obtained before, during, and after ECLS. Function of the innate immune system was measured by ex vivo lipopolysaccharide (LPS)-induced tumor necrosis factor-α (TNF-α) and plasma cytokine levels (interleukin [IL]-6, IL-8, IL-10, and TNF-α). Immunoparalysis was defined as ex vivo TNF-α levels less than 200 pg/ml. Nineteen patients were enrolled with twelve <18 years old. Median ECLS duration was 10 days (range: 3-108); nine patients died. After stratifying the cohort by the presence of immunoparalysis before ECLS, those immunoparalyzed showed increased response to LPS on days 1 and 3 (p = 0.016). Those without pre-ECLS immunoparalysis showed a transient decrease in response on day 3 (p = 0.008). Plasma IL-10 levels were elevated in those with pre-ECLS immunoparalysis and dropped significantly by day 1 (p = 0.031). The number treated with steroids was similar in the two groups. In conclusion, patients with immunoparalysis before ECLS showed a gradual increase in immune function during ECLS, whereas those without immunoparalysis had a transient decrease in responsiveness on day 3.
Collapse
|
23
|
A Multicenter Network Assessment of Three Inflammation Phenotypes in Pediatric Sepsis-Induced Multiple Organ Failure. Pediatr Crit Care Med 2019; 20:1137-1146. [PMID: 31568246 PMCID: PMC8121153 DOI: 10.1097/pcc.0000000000002105] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Ongoing adult sepsis clinical trials are assessing therapies that target three inflammation phenotypes including 1) immunoparalysis associated, 2) thrombotic microangiopathy driven thrombocytopenia associated, and 3) sequential liver failure associated multiple organ failure. These three phenotypes have not been assessed in the pediatric multicenter setting. We tested the hypothesis that these phenotypes are associated with increased macrophage activation syndrome and mortality in pediatric sepsis. DESIGN Prospective severe sepsis cohort study comparing children with multiple organ failure and any of these phenotypes to children with multiple organ failure without these phenotypes and children with single organ failure. SETTING Nine PICUs in the Eunice Kennedy Shriver National Institutes of Child Health and Human Development Collaborative Pediatric Critical Care Research Network. PATIENTS Children with severe sepsis and indwelling arterial or central venous catheters. INTERVENTIONS Clinical data collection and twice weekly blood sampling until PICU day 28 or discharge. MEASUREMENTS AND MAIN RESULTS Of 401 severe sepsis cases enrolled, 112 (28%) developed single organ failure (0% macrophage activation syndrome 0/112; < 1% mortality 1/112), whereas 289 (72%) developed multiple organ failure (9% macrophage activation syndrome 24/289; 15% mortality 43/289). Overall mortality was higher in children with multiple organ and the phenotypes (24/101 vs 20/300; relative risk, 3.56; 95% CI, 2.06-6.17). Compared to the 188 multiple organ failure patients without these inflammation phenotypes, the 101 multiple organ failure patients with these phenotypes had both increased macrophage activation syndrome (19% vs 3%; relative risk, 7.07; 95% CI, 2.72-18.38) and mortality (24% vs 10%; relative risk, 2.35; 95% CI, 1.35-4.08). CONCLUSIONS These three inflammation phenotypes were associated with increased macrophage activation syndrome and mortality in pediatric sepsis-induced multiple organ failure. This study provides an impetus and essential baseline data for planning multicenter clinical trials targeting these inflammation phenotypes in children.
Collapse
|
24
|
Justus G, Walker C, Rosenthal LM, Berger F, Miera O, Schmitt KRL. Immunodepression after CPB: Cytokine dynamics and clinics after pediatric cardiac surgery – A prospective trial. Cytokine 2019; 122:154018. [DOI: 10.1016/j.cyto.2017.03.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 03/23/2017] [Accepted: 03/31/2017] [Indexed: 12/23/2022]
|
25
|
Vergales J, Seckeler MD, Chew J, Gangemi J. Prevalence of Culture-Negative Fever in Infants With Down Syndrome Undergoing Cardiac Surgery. World J Pediatr Congenit Heart Surg 2019; 10:599-603. [PMID: 31496410 DOI: 10.1177/2150135119864575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Children with Down syndrome (DS) often have congenital heart disease that requires surgical repair in the first year. Anecdotally, we have noted that patients with DS seem to have a higher rate of culture-negative postoperative fever. The objective was to evaluate the prevalence of postoperative fever and recovery among patients with DS undergoing cardiac surgery. METHODS We conducted a retrospective, case-control study of all patients at our institution less than one year of age with DS undergoing surgical repair of an atrioventricular septal defect or ventricular septal defect between 2010 and 2016. The control group was patients with no chromosomal anomalies who were age and surgery matched to the DS group. Temperatures were recorded for the first 72 hours postoperatively, with duration and degree of fever being assessed using the area under the curve. RESULTS Patients with DS (n = 34) had a significantly higher prevalence of fever than the control group (59% vs 24%, P = .003), longer ventilator time, and longer length of stay. Among the DS group, those who developed fever tended to be older at the time of surgery (146 ± 63 vs 103 ± 45 days, P = .04). The DS group with fever had similar cardiopulmonary bypass times, intensive care unit and total lengths of stay, ventilator days, and hospital costs compared to patients with DS without fever. CONCLUSIONS Patients with DS have a higher incidence of culture-negative fever within the first 72 hours. The presence of fever in these patients, however, does not affect their overall postoperative course.
Collapse
Affiliation(s)
- Jeffrey Vergales
- Division of Pediatric Cardiology, University of Virginia, Charlottesville, VA, USA
| | - Michael D Seckeler
- Division of Pediatric Cardiology, University of Arizona, Tucson, AZ, USA
| | - Joshua Chew
- Division of Pediatric Cardiology, Vanderbilt University, Nashville, TN, USA
| | - James Gangemi
- Division of Thoracic and Cardiovascular Surgery, University of Virginia, Charlottesville, VA, USA
| |
Collapse
|
26
|
|
27
|
Muszynski JA, Nofziger R, Moore-Clingenpeel M, Greathouse K, Anglim L, Steele L, Hensley J, Hanson-Huber L, Nateri J, Ramilo O, Hall MW. Early Immune Function and Duration of Organ Dysfunction in Critically III Children with Sepsis. Am J Respir Crit Care Med 2018; 198:361-369. [PMID: 29470918 PMCID: PMC6835060 DOI: 10.1164/rccm.201710-2006oc] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 02/21/2018] [Indexed: 12/22/2022] Open
Abstract
RATIONALE Late immune suppression is associated with nosocomial infection and mortality in adults and children with sepsis. Relationships between early immune suppression and outcomes in children with sepsis remain unclear. OBJECTIVES Prospective observational study to test the hypothesis that early innate and adaptive immune suppression are associated with longer duration of organ dysfunction in children with severe sepsis or septic shock. METHODS Children younger than 18 years of age meeting consensus criteria for severe sepsis or septic shock were sampled within 48 hours of sepsis onset. Healthy control subjects were sampled once. Innate immune function was quantified by whole blood ex vivo LPS-induced TNF-α (tumor necrosis factor-α) production capacity. Adaptive immune function was quantified by ex vivo phytohemagglutinin-induced IFN-γ production capacity. MEASUREMENTS AND MAIN RESULTS One hundred two children with sepsis and 35 healthy children were enrolled. Compared with healthy children, children with sepsis demonstrated lower LPS-induced TNF-α production (P < 0.0001) and lower phytohemagglutinin-induced IFN-γ production (P < 0.0001). Among children with sepsis, early innate and adaptive immune suppression were associated with greater number of days with multiple organ dysfunction syndrome and greater number of days with any organ dysfunction. On multivariable analyses, early innate immune suppression remained independently associated with increased multiple organ dysfunction syndrome days (adjusted relative risk, 1.2; 95% confidence interval, 1.03-1.5) and organ dysfunction days (adjusted relative risk, 1.2; 95% confidence interval, 1.1-1.3). CONCLUSIONS Critically ill children with severe sepsis or septic shock demonstrate early innate and adaptive immune suppression. Early innate and adaptive immune suppression are associated with longer durations of organ dysfunction and may be useful markers to help guide future investigations of immunomodulatory therapies in children with sepsis.
Collapse
Affiliation(s)
- Jennifer A. Muszynski
- Division of Critical Care Medicine and
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Ryan Nofziger
- Division of Critical Care Medicine, Akron Children’s Hospital, Akron, Ohio; and
| | - Melissa Moore-Clingenpeel
- Division of Critical Care Medicine and
- Biostatistics Core, The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Kristin Greathouse
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Larissa Anglim
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Lisa Steele
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Josey Hensley
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Lisa Hanson-Huber
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Jyotsna Nateri
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Octavio Ramilo
- Division of Pediatric Infectious Diseases, Nationwide Children’s Hospital, Columbus, Ohio
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Mark W. Hall
- Division of Critical Care Medicine and
- The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| |
Collapse
|
28
|
Total arch replacement versus debranching thoracic endovascular aortic repair for aortic arch aneurysm: what indicates a high-risk patient for arch repair in octogenarians? Gen Thorac Cardiovasc Surg 2018; 66:263-269. [DOI: 10.1007/s11748-018-0894-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 01/22/2018] [Indexed: 01/14/2023]
|
29
|
Davila S, Halstead ES, Hall MW, Doctor A, Telford R, Holubkov R, Carcillo JA, Storch GA. Viral DNAemia and Immune Suppression in Pediatric Sepsis. Pediatr Crit Care Med 2018; 19:e14-e22. [PMID: 29189638 PMCID: PMC5756109 DOI: 10.1097/pcc.0000000000001376] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Demonstrate that DNA viremia is common in pediatric sepsis and quantitate its associations with host immune function and secondary infection risk. DESIGN Retrospective analysis of a prospective cohort study. PATIENTS Seventy-three children admitted with sepsis-induced organ failure. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS This study was performed as an ancillary investigation to a single-center prospective study of children with severe sepsis. Longitudinally collected, batched, frozen plasma was examined using real time-polymerase chain reaction for the presence of cytomegalovirus, Epstein-Barr virus, herpes simplex virus, human herpes virus-6, torque teno virus, and adenovirus DNA. Innate immune function was also measured longitudinally via quantification of ex vivo lipopolysaccharide -induced tumor necrosis factor-α production capacity. Viral DNAemia with a virus other than torque teno virus was detected in 28 of 73 subjects (38%) and included cytomegalovirus 5%, Epstein-Barr virus 11%, herpes simplex virus 4%, human herpes virus-6 8%, and adenovirus 26%. In addition, torque teno virus was detected in 89%. Epstein-Barr virus DNAemia was associated with preexisting immune suppression (p = 0.007) Viral DNAemia was associated with preexisting immune suppression and high risk for the subsequent development of secondary infection (p < 0.05 for both). Subjects with viral DNAemia had lower innate immune function over time compared with those who were virus negative (p < 0.05). CONCLUSIONS DNAemia from multiple viruses can be detected in septic children and is strongly associated with preexisting immune suppression and secondary infection risk. The role of DNA viruses in the perpetuation of impaired host defense in this setting should be the subject of prospective study.
Collapse
|
30
|
Neutrophil Phenotype Correlates With Postoperative Inflammatory Outcomes in Infants Undergoing Cardiopulmonary Bypass. Pediatr Crit Care Med 2017; 18:1145-1152. [PMID: 29068910 DOI: 10.1097/pcc.0000000000001361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Infants with congenital heart disease frequently require cardiopulmonary bypass, which causes systemic inflammation. The goal of this study was to determine if neutrophil phenotype and activation status predicts the development of inflammatory complications following cardiopulmonary bypass. DESIGN Prospective cohort study. SETTING Tertiary care PICU with postoperative cardiac care. PATIENTS Thirty-seven patients 5 days to 10 months old with congenital heart disease requiring cardiopulmonary bypass. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Laboratory and clinical data collected included length of mechanical ventilation, acute kidney injury, and fluid overload. Neutrophils were isolated from whole blood at three time points surrounding cardiopulmonary bypass. Functional analyses included measurement of cell surface protein expression and nicotinamide adenine dinucleotide phosphate oxidase activity. Of all patients studied, 40.5% displayed priming of nicotinamide adenine dinucleotide phosphate oxidase activity in response to N-formyl-Met-Leu-Phe stimulation 24 hours post cardiopulmonary bypass as compared to pre bypass. Neonates who received steroids prior to bypass demonstrated enhanced priming of nicotinamide adenine dinucleotide phosphate oxidase activity at 48 hours. Patients who displayed priming post cardiopulmonary bypass were 8.8 times more likely to develop severe acute kidney injury as compared to nonprimers. Up-regulation of neutrophil surface CD11b levels pre- to postbypass occurred in 51.4% of patients, but this measure of neutrophil priming was not associated with acute kidney injury. Subsequent analyses of the basal neutrophil phenotype revealed that those with higher basal CD11b expression were significantly less likely to develop acute kidney injury. CONCLUSIONS Neutrophil priming occurs in a subset of infants undergoing cardiopulmonary bypass. Acute kidney injury was more frequent in those patients who displayed priming of nicotinamide adenine dinucleotide phosphate oxidase activity after cardiopulmonary bypass. This pilot study suggests that neutrophil phenotypic signature could be used to predict inflammatory organ dysfunction.
Collapse
|
31
|
Abstract
Although many forms of critical illness are initiated by a proinflammatory stimulus, a compensatory anti-inflammatory response can occur with systemic inflammation. Immunoparalysis, an important form of acquired immunodeficiency, affects the innate and adaptive arms of the immune system. Immunoparalysis has been associated with increased risks for nosocomial infection and death in a variety of pediatric critical illnesses. Evidence suggests that immunoparalysis is reversible with immunostimulants. Highly standardized, prospective immune monitoring regimens are needed to better understand the immunologic effects of critical care treatment regimens and to enrich clinical trials with subjects most likely to benefit from immunostimulatory therapies.
Collapse
|
32
|
Maddux AB, Hiller TD, Overdier KH, Pyle LL, Douglas IS. Innate Immune Function and Organ Failure Recovery in Adults With Sepsis. J Intensive Care Med 2017; 34:486-494. [PMID: 28372498 DOI: 10.1177/0885066617701903] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE Sepsis stimulates pro- and anti-inflammatory immune responses. The innate immune response is critical to organ injury repair. We tested for an association between innate immune function and organ function recovery in a prospective cohort of immune-competent adults with sepsis. METHODS We conducted a prospective observational cohort study enrolling immune-competent adults with sepsis. We tested innate immune function by quantification of lipopolysaccharide (LPS)-stimulated tumor necrosis factor (TNF) α production capacity in whole blood samples on hospital days 1, 4, and 6. The primary outcome was organ function recovery on day 4 defined as a 4-point decrease in the composite cardiovascular and respiratory Sequential Organ Failure Assessment (SOFA) score components or a SOFA score ≤2. RESULTS Patients with sepsis who recovered organ function by day 4 (n = 11) had similar baseline characteristics when compared to those with ongoing organ failure (n = 13). Tumor necrosis factor α production capacity was similar between the 2 groups on hospital days 1 and 4 but significantly different on day 6. Patients who regained organ function recovery had significantly higher TNF-α production capacity on day 6 ( P = .01), which persisted after adjustment for age, Acute Physiology and Chronic Health Evaluation III score, and steroid administration ( P = .03). There was no difference in TNF-α production capacity over time in those who survived to hospital discharge versus nonsurvivors. CONCLUSION Increasing TNF-α production capacity is associated with improved organ failure recovery. Further studies are needed to evaluate a causal association between innate immune suppression and organ failure recovery as well as predictive accuracy for hospital survival. Impaired TNF-α production as a marker of sepsis-associated innate immune dysfunction may be a feasible target for immune stimulation to decrease time to organ failure recovery.
Collapse
Affiliation(s)
- Aline B Maddux
- 1 Department of Pediatrics, Section of Pediatric Critical Care, University of Colorado School of Medicine, Aurora, CO, USA.,2 Children's Hospital Colorado, Aurora, CO, USA
| | - Terra D Hiller
- 3 Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, Denver Health Medical Center, Denver, CO, USA
| | - Katherine H Overdier
- 3 Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, Denver Health Medical Center, Denver, CO, USA
| | - Laura L Pyle
- 1 Department of Pediatrics, Section of Pediatric Critical Care, University of Colorado School of Medicine, Aurora, CO, USA.,4 Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, USA
| | - Ivor S Douglas
- 1 Department of Pediatrics, Section of Pediatric Critical Care, University of Colorado School of Medicine, Aurora, CO, USA.,3 Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, Denver Health Medical Center, Denver, CO, USA
| |
Collapse
|
33
|
Abstract
OBJECTIVE To describe the pathophysiology associated with multiple organ dysfunction syndrome in children. DATA SOURCES Literature review, research data, and expert opinion. STUDY SELECTION Not applicable. DATA EXTRACTION Moderated by an experienced expert from the field, pathophysiologic processes associated with multiple organ dysfunction syndrome in children were described, discussed, and debated with a focus on identifying knowledge gaps and research priorities. DATA SYNTHESIS Summary of presentations and discussion supported and supplemented by relevant literature. CONCLUSIONS Experiment modeling suggests that persistent macrophage activation may be a pathophysiologic basis for multiple organ dysfunction syndrome. Children with multiple organ dysfunction syndrome have 1) reduced cytochrome P450 metabolism inversely proportional to inflammation; 2) increased circulating damage-associated molecular pattern molecules from injured tissues; 3) increased circulating pathogen-associated molecular pattern molecules from infection or endogenous microbiome; and 4) cytokine-driven epithelial, endothelial, mitochondrial, and immune cell dysfunction. Cytochrome P450s metabolize endogenous compounds and xenobiotics, many of which ameliorate inflammation, whereas damage-associated molecular pattern molecules and pathogen-associated molecular pattern molecules alone and together amplify the cytokine production leading to the inflammatory multiple organ dysfunction syndrome response. Genetic and environmental factors can impede inflammation resolution in children with a spectrum of multiple organ dysfunction syndrome pathobiology phenotypes. Thrombocytopenia-associated multiple organ dysfunction syndrome patients have extensive endothelial activation and thrombotic microangiopathy with associated oligogenic deficiencies in inhibitory complement and a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13. Sequential multiple organ dysfunction syndrome patients have soluble Fas ligand-Fas-mediated hepatic failure with associated oligogenic deficiencies in perforin and granzyme signaling. Immunoparalysis-associated multiple organ dysfunction syndrome patients have impaired ability to resolve infection and have associated environmental causes of lymphocyte apoptosis. These inflammation phenotypes can lead to macrophage activation syndrome. Resolution of multiple organ dysfunction syndrome requires elimination of the source of inflammation. Full recovery of organ functions is noted 6-18 weeks later when epithelial, endothelial, mitochondrial, and immune cell regeneration and reprogramming is completed.
Collapse
|
34
|
De Cock PAJG, Mulla H, Desmet S, De Somer F, McWhinney BC, Ungerer JPJ, Moerman A, Commeyne S, Vande Walle J, Francois K, Van Hasselt JGC, De Paepe P. Population pharmacokinetics of cefazolin before, during and after cardiopulmonary bypass to optimize dosing regimens for children undergoing cardiac surgery. J Antimicrob Chemother 2016; 72:791-800. [DOI: 10.1093/jac/dkw496] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 10/17/2016] [Indexed: 02/03/2023] Open
|
35
|
Song ST, Bai CM, Zhou JW. Serum TNF-α levels in children with congenital heart disease undergoing cardiopulmonary bypass: A cohort study in China and a meta-analysis of the published literature. J Clin Lab Anal 2016; 31. [PMID: 27957762 DOI: 10.1002/jcla.22112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/14/2016] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE To investigate the changes in tumor necrosis factor alpha (TNF-α) serum levels after cardiopulmonary bypass (CPB) in children with congenital heart disease (CHD), followed by a meta-analysis to analyze the clinical value of TNF-α in CPB. METHODS Our cohort study enrolled 67 CHD children, assigned into off-pump group (n=32) and CPB group (n=35). The TNF-α serum levels in two groups were detected by ELISA before the operation (T1), at the end of the operation (0 hour, T2), and after 24 hours of the operation (T3). For meta-analysis, literature search was conducted to identify published case-control articles about the changes of TNF-α serum levels with CPB of CHD. RESULTS The TNF-α levels in CPB group were lower than that in the off-pump group at T3 (P=.006). TNF-α level at T3 was significantly lower than that at T1 and T2 (all P<.05). Meta-analysis results further confirmed that the TNF-α levels of CHD children were dramatically decreased at T3 as compared to that at T1 and T2 (both P<.001). CONCLUSION The TNF-α serum levels showed a transient and dramatic decline after 24 hours of CPB, and it may act as an important biological indicator for monitoring the efficacy of CPB in CHD children.
Collapse
Affiliation(s)
- Shu-Tian Song
- Department of Cardiothoracic Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Chuan-Ming Bai
- Department of Cardiothoracic Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Ji-Wu Zhou
- Department of Cardiothoracic Surgery, Cangzhou Central Hospital, Cangzhou, China
| |
Collapse
|
36
|
Manzoli TF, Delgado AF, Troster EJ, de Carvalho WB, Antunes ACB, Marques DM, Zamberlan P. Lymphocyte count as a sign of immunoparalysis and its correlation with nutritional status in pediatric intensive care patients with sepsis: A pilot study. Clinics (Sao Paulo) 2016; 71:644-649. [PMID: 27982165 PMCID: PMC5108166 DOI: 10.6061/clinics/2016(11)05] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 08/22/2016] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVES: Developing malnutrition during hospitalization is well recognized worldwide, and children are at a relatively higher risk for malnutrition than adults. Malnutrition can lead to immune dysfunction, which is associated with a higher mortality rate due to sepsis, the most frequent cause of death in pediatric intensive care units (PICUs). The aim of this study was to investigate whether malnourished patients are more likely to have relative or absolute lymphopenia and, consequently, worse prognoses. METHODS: We enrolled 14 consecutive patients with sepsis whose legal representatives provided written informed consent. Patients were classified as normal or malnourished based on anthropometric measurements. As an additional evaluation of nutritional status, serum albumin and zinc were measured on the 1st and 7th days of hospitalization. Lymphocyte count was also measured on the 1st and 7th days. Clinicaltrials.gov: NCT02698683. RESULTS: Malnutrition prevalence rates were 33.3% and 42.8% based on weight and height, respectively. Laboratory analyses revealed a reduction of serum albumin in 100% of patients and reduction of zinc in 93.3% of patients. A total of 35% of patients had fewer than 500 lymphocytes/mm3 on their first day in the PICU. Lymphocyte counts and zinc concentrations significantly increased during hospitalization. CONCLUSIONS: Nutritional evaluations, including anthropometric measurements, were not correlated with lymphocyte counts. Lymphocyte counts concomitantly increased with zinc levels, suggesting that micronutrient supplementation benefits patients with sepsis.
Collapse
Affiliation(s)
- Talita Freitas Manzoli
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
- Hospital Cruz Azul, São Paulo/SP, Brazil
- E-mail:
| | - Artur Figueiredo Delgado
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
| | - Eduardo Juan Troster
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
| | - Werther Brunow de Carvalho
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
| | | | - Desirée Mayara Marques
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
| | - Patrícia Zamberlan
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Pediatria, São Paulo/SP, Brazil
| |
Collapse
|
37
|
Muszynski JA, Spinella PC, Cholette JM, Acker JP, Hall MW, Juffermans NP, Kelly DP, Blumberg N, Nicol K, Liedel J, Doctor A, Remy KE, Tucci M, Lacroix J, Norris PJ. Transfusion-related immunomodulation: review of the literature and implications for pediatric critical illness. Transfusion 2016; 57:195-206. [PMID: 27696473 DOI: 10.1111/trf.13855] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/01/2016] [Accepted: 08/15/2016] [Indexed: 02/06/2023]
Abstract
Transfusion-related immunomodulation (TRIM) in the intensive care unit (ICU) is difficult to define and likely represents a complicated set of physiologic responses to transfusion, including both proinflammatory and immunosuppressive effects. Similarly, the immunologic response to critical illness in both adults and children is highly complex and is characterized by both acute inflammation and acquired immune suppression. How transfusion may contribute to or perpetuate these phenotypes in the ICU is poorly understood, despite the fact that transfusion is common in critically ill patients. Both hyperinflammation and severe immune suppression are associated with poor outcomes from critical illness, underscoring the need to understand potential immunologic consequences of blood product transfusion. In this review we outline the dynamic immunologic response to critical illness, provide clinical evidence in support of immunomodulatory effects of blood product transfusion, review preclinical and translational studies to date of TRIM, and provide insight into future research directions.
Collapse
Affiliation(s)
- Jennifer A Muszynski
- Division of Critical Care Medicine, Canadian Blood Services, Edmonton, Alberta, Canada.,The Research Institute, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Philip C Spinella
- Department of Pediatrics, Division Pediatric Critical Care, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Jill M Cholette
- Pediatric Critical Care and Cardiology, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Jason P Acker
- Centre for Innovation, Canadian Blood Services.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Mark W Hall
- Division of Critical Care Medicine, Canadian Blood Services, Edmonton, Alberta, Canada.,The Research Institute, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Nicole P Juffermans
- Department of Intensive Care Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - Daniel P Kelly
- Division of Critical Care, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Neil Blumberg
- Transfusion Medicine/Blood Bank and Clinical Laboratories, Departments of Pathology and Laboratory Medicine, University of Rochester, Rochester, New York
| | - Kathleen Nicol
- Department of Pathology, Nationwide Children's Hospital, Columbus, Ohio
| | - Jennifer Liedel
- Pediatric Critical Care Medicine, Albert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, New York
| | - Allan Doctor
- Departments of Pediatrics and Biochemistry, Washington University in St Louis, St Louis, Missouri
| | - Kenneth E Remy
- Department of Pediatrics, Division Pediatric Critical Care, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Marisa Tucci
- Department of Pediatrics, Sainte-Justine Hospital, Université de Montréal, Montreal, Quebec, Canada
| | - Jacques Lacroix
- Department of Pediatrics, Sainte-Justine Hospital, Université de Montréal, Montreal, Quebec, Canada
| | - Philip J Norris
- Blood Systems Research Institute.,Departments of Laboratory Medicine and Medicine, University of California, San Francisco, San Francisco, California
| | | |
Collapse
|
38
|
Abstract
OBJECTIVES The objectives of this review are to discuss the pathophysiology of the pro-inflammatory response to the cardiopulmonary bypass circuit, the impact of ischemia reperfusion injury on post-operative organ function, the compensatory anti-inflammatory response and the evidence for immune-modulatory strategies and their impact on outcomes. DATA SOURCE MEDLINE, PubMed. CONCLUSION Innovations such as the development of more biocompatible surfaces and miniaturized circuits, as well as the increasing expertise of surgeons, anesthesiologists and perfusionists has transformed cardiac surgery and the use of cardiopulmonary bypass into a relatively routine procedure with favorable outcomes. Despite these refinements, the attendant inflammatory response to bypass, ischemia reperfusion injury and the compensatory anti-inflammatory response contribute to post-operative morbidity and mortality. Additional studies are needed to further delineate the impact of immunomodulatory strategies on outcomes.
Collapse
|
39
|
Abstract
OBJECTIVES In this review, we will discuss risk factors for developing sepsis; the role of biomarkers in establishing an early diagnosis, in monitoring therapeutic efficacy, in stratification, and for the identification of sepsis endotypes; and the pathophysiology and management of severe sepsis and septic shock, with an emphasis on the impact of sepsis on cardiovascular function. DATA SOURCE MEDLINE and PubMed. CONCLUSIONS There is a lot of excitement in the field of sepsis research today. Scientific advances in the diagnosis and clinical staging of sepsis, as well as a personalized approach to the treatment of sepsis, offer tremendous promise for the future. However, at the same time, it is also evident that sepsis mortality has not improved enough, even with progress in our understanding of the molecular pathophysiology of sepsis.
Collapse
|
40
|
Abstract
PURPOSE OF REVIEW The purpose of review is to highlight the inflammatory response in critical illness and the importance of immune monitoring and modulation in the diagnosis and treatment of critical illness-induced innate immune suppression. RECENT FINDINGS The pro and anti-inflammatory responses are known to be concurrently activated in many patients requiring intensive care, with innate immune suppression emerging as an important, and potentially reversible, complication of critical illness. SUMMARY The initial inflammatory response to critical illness is typically driven by innate immune cells, including neutrophils, monocytes, and macrophages. The proinflammatory mediators made by these cells are responsible for many of the pathophysiologic features of critical illness. Concurrent with this, however, is a compensatory anti-inflammatory response, including the elaboration of anti-inflammatory mediators and impairment of innate immune cell function. This includes reduction of monocyte human leukocyte antigen-DR expression and impairment of the ability of innate immune cells to produce tumor necrosis factor alpha when stimulated ex vivo. In its most severe form this is referred to as immunoparalysis, and is associated with markedly increased risks for secondary infection and death in the ICU. Prospective testing can detect this phenomenon, and immunostimulatory strategies, including the use of granulocyte macrophage-colony stimulating factor, have the potential to restore innate immune function in this setting.
Collapse
|
41
|
Axelrod DM, Alten JA, Berger JT, Hall MW, Thiagarajan R, Bronicki RA. Immunologic and Infectious Diseases in Pediatric Cardiac Critical Care: Proceedings of the 10th International Pediatric Cardiac Intensive Care Society Conference. World J Pediatr Congenit Heart Surg 2016; 6:575-87. [PMID: 26467872 DOI: 10.1177/2150135115598211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Since the inception of the Pediatric Cardiac Intensive Care Society (PCICS) in 2003, remarkable advances in the care of children with critical cardiac disease have been developed. Specialized surgical approaches, anesthesiology practices, and intensive care management have all contributed to improved outcomes. However, significant morbidity often results from immunologic or infectious disease in the perioperative period or during a medical intensive care unit admission. The immunologic or infectious illness may lead to fever, which requires the attention and resources of the cardiac intensivist. Frequently, cardiopulmonary bypass leads to an inflammatory state that may present hemodynamic challenges or complicate postoperative care. However, inflammation unchecked by a compensatory anti-inflammatory response may also contribute to the development of capillary leak and lead to a complicated intensive care unit course. Any patient admitted to the intensive care unit is at risk for a hospital acquired infection, and no patients are at greater risk than the child treated with mechanical circulatory support. In summary, the prevention, diagnosis, and management of immunologic and infectious diseases in the pediatric cardiac intensive care unit is of paramount importance for the clinician. This review from the tenth PCICS International Conference will summarize the current knowledge in this important aspect of our field.
Collapse
Affiliation(s)
- David M Axelrod
- Department of Pediatrics (Cardiology), Stanford University School of Medicine, Palo Alto, CA, USA
| | - Jeffrey A Alten
- Section of Pediatric Cardiac Critical Care Medicine, University of Alabama at Birmingham, Children's of Alabama, Birmingham, AL, USA
| | - John T Berger
- Division of Critical Care Medicine, George Washington University School of Medicine, Children's National Health System, Washington, DC, USA Division of Cardiology, George Washington University School of Medicine, Children's National Health System, Washington, DC, USA
| | - Mark W Hall
- The Ohio State University College of Medicine, Critical Care Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Ravi Thiagarajan
- Intensive Care Unit, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Ronald A Bronicki
- Section of Critical Care Medicine and Cardiology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| |
Collapse
|
42
|
Greathouse KC, Hall MW. Critical Illness-Induced Immune Suppression: Current State of the Science. Am J Crit Care 2016; 25:85-92. [PMID: 26724299 DOI: 10.4037/ajcc2016432] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Critical illness comprises a heterogeneous group of serious medical conditions that typically involve an initial proinflammatory process. A compensatory anti-inflammatory response may occur that, if severe and persistent, places the patient at high risk for adverse outcomes including secondary infection and death. Monitoring strategies can identify these patients through measurement of innate and adaptive immune function. Reductions in monocyte HLA-DR expression, reduced cytokine production capacity, increased inhibitory cell surface molecule expression, and lymphopenia have all been associated with this immune-suppressed state. Intriguing data suggest that critical illness-induced immune suppression may be reversible with agents such as interferon-γ, granulocyte macrophage colony-stimulating factor, interleukin 7, or anti-programmed death-1 therapy. Future approaches for characterization of patient-specific immune derangements and individualized treatment could revolutionize how we recognize and prevent complications in critically ill patients.
Collapse
Affiliation(s)
- Kristin C. Greathouse
- Kristin C. Greathouse is a doctoral student in nursing at The Ohio State University and an advanced practice nurse in the Cardiothoracic Intensive Care Unit at Nationwide Children’s Hospital, Columbus, OH. Mark W. Hall is the chief of the Division of Critical Care Medicine at Nationwide Children’s Hospital and an immunobiology researcher in the Center for Clinical and Translational Research at The Research Institute at Nationwide Children’s Hospital, Columbus, OH
| | - Mark W. Hall
- Kristin C. Greathouse is a doctoral student in nursing at The Ohio State University and an advanced practice nurse in the Cardiothoracic Intensive Care Unit at Nationwide Children’s Hospital, Columbus, OH. Mark W. Hall is the chief of the Division of Critical Care Medicine at Nationwide Children’s Hospital and an immunobiology researcher in the Center for Clinical and Translational Research at The Research Institute at Nationwide Children’s Hospital, Columbus, OH
| |
Collapse
|
43
|
Maddux AB, Douglas IS. Is the developmentally immature immune response in paediatric sepsis a recapitulation of immune tolerance? Immunology 2015; 145:1-10. [PMID: 25691226 DOI: 10.1111/imm.12454] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 12/23/2022] Open
Abstract
Immunologically immature neonates suffer the highest incidence of paediatric sepsis. Postnatal immunological maturation is characterized by a relatively hypo-inflammatory immune response. The mechanisms that differentiate the mature and immature immune responses resemble those that differentiate the hyper- and hypo-inflammatory responses in severe sepsis. Immunological maturational differences likely affect the neonate's ability to mount an appropriate hyper-inflammatory response, a counteractive hypo-inflammatory response, and subsequent return to immune system homeostasis. To better understand the role of the hypo-inflammatory response in paediatric sepsis, we will explore the maturation of the immune system and the effect it may have on the sepsis-induced hypo-inflammatory response.
Collapse
Affiliation(s)
- Aline B Maddux
- Division of Pediatric Critical Care, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | | |
Collapse
|
44
|
Innate immune function predicts the development of nosocomial infection in critically injured children. Shock 2015; 42:313-21. [PMID: 24978895 DOI: 10.1097/shk.0000000000000217] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Critical injury has been associated with reduction in innate immune function in adults, with infection risk being related to degree of immune suppression. This relationship has not been reported in critically injured children. HYPOTHESIS Innate immune function will be reduced in critically injured children, and the degree of reduction will predict the subsequent development of nosocomial infection. METHODS Children (≤18 years old) were enrolled in this longitudinal, prospective, observational, single-center study after admission to the pediatric intensive care unit following critical injury, along with a cohort of outpatient controls. Serial blood sampling was performed to evaluate plasma cytokine levels and innate immune function as measured by ex vivo lipopolysaccharide-induced tumor necrosis factor α (TNF-α) production capacity. RESULTS Seventy-six critically injured children (and 21 outpatient controls) were enrolled. Sixteen critically injured subjects developed nosocomial infection. Those subjects had higher plasma interleukin 6 and interleukin 10 levels on posttrauma days 1-2 compared with those who recovered without infection and outpatient controls. Ex vivo lipopolysaccharide-induced TNF-α production capacity was lower on posttrauma days 1-2 (P = 0.006) and over the first week following injury (P = 0.04) in those who went on to develop infection. A TNF-α response of less than 520 pg/mL at any time in the first week after injury was highly associated with infection risk by univariate and multivariate analysis. Among transfused children, longer red blood cell storage age, not transfusion volume, was associated with lower innate immune function (P < 0.0001). Trauma-induced innate immune suppression was reversible ex vivo via coculture of whole blood with granulocyte-macrophage colony-stimulating factor. CONCLUSIONS Trauma-induced innate immune suppression is common in critically injured children and is associated with increased risks for the development of nosocomial infection. Potential exacerbating factors, including red blood cell transfusion, and potential therapies for pediatric trauma-induced innate immune suppression are deserving of further study.
Collapse
|
45
|
Muszynski JA, Bale J, Nateri J, Nicol K, Wang Y, Wright V, Marsh CB, Gavrilin MA, Sarkar A, Wewers MD, Hall MW. Supernatants from stored red blood cell (RBC) units, but not RBC-derived microvesicles, suppress monocyte function in vitro. Transfusion 2015; 55:1937-45. [PMID: 25819532 DOI: 10.1111/trf.13084] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/12/2015] [Accepted: 02/13/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND We have previously shown that critically ill children transfused with red blood cells (RBCs) of longer storage durations have more suppressed monocyte function after transfusion compared to children transfused with fresher RBCs and that older stored RBCs directly suppress monocyte function in vitro, through unknown mechanisms. We hypothesized that RBC-derived microvesicles (MVs) were responsible for monocyte suppression. STUDY DESIGN AND METHODS To determine the role of stored RBC unit-derived MVs, we cocultured monocytes with supernatants, isolated MVs, or supernatants that had been depleted of MVs from prestorage leukoreduced RBCs that had been stored for either 7 or 30 days. Isolated MVs were characterized by electron microscopy and flow cytometry. Monocyte function after coculture experiments was measured by cytokine production after stimulation with lipopolysaccharide (LPS). RESULTS Monocyte function was suppressed after exposure to supernatants from 30-day RBC units compared to monocytes cultured in medium alone (LPS-induced tumor necrosis factor-α production, 17,611 ± 3,426 vs. 37,486 ± 5,598 pg/mL; p = 0.02). Monocyte function was not suppressed after exposure to MV fractions. RBC supernatants that had been depleted of MVs remained immunosuppressive. Treating RBC supernatants with heat followed by RNase (to degrade protein-bound RNA) prevented RBC supernatant-induced monocyte suppression. CONCLUSION Our findings implicate soluble mediators of stored RBC-induced monocyte suppression outside of MV fractions and suggest that extracellular protein-bound RNAs (such as microRNA) may play a role in transfusion-related immunomodulation.
Collapse
Affiliation(s)
- Jennifer A Muszynski
- Division of Critical Care Medicine.,The Research Institute.,Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | | | | | | | - Yijie Wang
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Valerie Wright
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Clay B Marsh
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mikhail A Gavrilin
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Anasuya Sarkar
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mark D Wewers
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mark W Hall
- Division of Critical Care Medicine.,The Research Institute.,Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| |
Collapse
|
46
|
Muszynski JA, Frazier E, Nofziger R, Nateri J, Hanson-Huber L, Steele L, Nicol K, Spinella PC, Hall MW. Red blood cell transfusion and immune function in critically ill children: a prospective observational study. Transfusion 2014; 55:766-74. [PMID: 25355535 DOI: 10.1111/trf.12896] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 08/25/2014] [Accepted: 08/29/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND Our previous in vitro work showed that stored red blood cells (RBCs) increasingly suppress markers of innate immune function with increased storage time. This multicenter prospective observational study tests the hypothesis that a single RBC transfusion in critically ill children is associated with immune suppression as a function of storage time. STUDY DESIGN AND METHODS Blood samples were taken immediately before and 24 (±6) hours after a single RBC transfusion ordered as part of routine care. Innate and adaptive immune function was assessed by ex vivo whole blood stimulation with lipopolysaccharide (LPS) and phytohemagglutinin, respectively. Monocyte HLA-DR expression, regulatory T cells, plasma interleukin (IL)-6, and IL-8 levels were also measured. RESULTS Thirty-one transfused critically ill children and eight healthy controls were studied. Critically ill subjects had lower pretransfusion LPS-induced tumor necrosis factor-α production capacity compared to healthy controls, indicating innate immune suppression (p < 0.0002). Those who received RBCs stored for not more than 21 days demonstrated recovery of innate immune function (p = 0.02) and decreased plasma IL-6 levels (p = 0.002) over time compared to children transfused with older blood, who showed persistence of systemic inflammation and innate immune suppression. RBC storage time was not associated with changes in adaptive immune function. CONCLUSION In this pilot cohort of critically ill children, transfusion with older prestorage leukoreduced RBCs was associated with persistence of innate immune suppression and systemic inflammation. This was not seen with fresher RBCs. RBC transfusion had no short-term association with adaptive immune function. Further studies are warranted to confirm these findings in a larger cohort of patients.
Collapse
Affiliation(s)
- Jennifer A Muszynski
- Pediatric Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio.,The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Elfaridah Frazier
- Pediatrics, Division of Critical Care Medicine, Washington University, St Louis, Missouri
| | - Ryan Nofziger
- Critical Care Medicine, Department of Pediatrics, Akron Children's Hospital, Akron, Ohio
| | - Jyotsna Nateri
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Lisa Hanson-Huber
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Lisa Steele
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Kathleen Nicol
- Pathology, Nationwide Children's Hospital, Columbus, Ohio
| | - Philip C Spinella
- Pediatrics, Division of Critical Care Medicine, Washington University, St Louis, Missouri
| | - Mark W Hall
- Pediatric Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio.,The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | | |
Collapse
|
47
|
Muszynski JA, Nofziger R, Greathouse K, Steele L, Hanson-Huber L, Nateri J, Hall MW. Early adaptive immune suppression in children with septic shock: a prospective observational study. Crit Care 2014; 18:R145. [PMID: 25005517 PMCID: PMC4226962 DOI: 10.1186/cc13980] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 06/13/2014] [Indexed: 11/27/2022] Open
Abstract
Introduction Innate immune suppression occurs commonly in pediatric critical illness, in which it is associated with adverse outcomes. Less is known about the adaptive immune response in critically ill children with sepsis. We designed a single-center prospective, observational study to test the hypothesis that children with septic shock would have decreased adaptive immune function compared with healthy children and that among children with sepsis, lower adaptive immune function would be associated with the development of persistent infection or new nosocomial infection. Methods Children (18 years or younger) who were admitted to the pediatric intensive care unit with septic shock (by International Consensus Criteria) were enrolled in the study. Blood samples were taken within 48 hours of sepsis onset and again on Day 7 of illness. Adaptive immune function was assessed with ex vivo phytohemagglutinin (PHA)-induced cytokine production capacity of isolated CD4+ T cells. Percentage of regulatory T cells was measured with flow cytometry. Absolute lymphocyte counts were recorded when available. Results In total, 22 children with septic shock and eight healthy controls were enrolled. Compared with those from healthy children, CD4+ T cells isolated from septic shock children on Days 1 to 2 of illness and stimulated with PHA produced less of the pro-inflammatory cytokine interferon gamma (IFN-γ) (P = 0.002), and the antiinflammatory cytokines interleukin (IL)-4 (P = 0.03) and IL-10 (P = 0.02). Among septic shock children, those who went on to develop persistent or nosocomial infection had decreased T-cell ex vivo PHA-induced production of IFN-γ (P = 0.01), IL-2 (P = 0.01), IL-4 (P = 0.008), and IL-10 (P = 0.001) compared with septic shock children who did not. Percentage of regulatory T cells (CD4+CD25+CD127lo) did not differ among groups. Conclusions Adaptive immune suppression may occur early in the course of pediatric septic shock and is associated with adverse infection-related outcomes.
Collapse
|
48
|
Oh BR, Huang NT, Chen W, Seo JH, Chen P, Cornell TT, Shanley TP, Fu J, Kurabayashi K. Integrated nanoplasmonic sensing for cellular functional immunoanalysis using human blood. ACS NANO 2014; 8:2667-76. [PMID: 24568576 PMCID: PMC4004291 DOI: 10.1021/nn406370u] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 02/19/2014] [Indexed: 05/18/2023]
Abstract
Localized surface plasmon resonance (LSPR) nanoplasmonic effects allow for label-free, real-time detection of biomolecule binding events on a nanostructured metallic surface with simple optics and sensing tunability. Despite numerous reports on LSPR bionanosensing in the past, no study thus far has applied the technique for a cytokine secretion assay using clinically relevant immune cells from human blood. Cytokine secretion assays, a technique to quantify intercellular-signaling proteins secreted by blood immune cells, allow determination of the functional response of the donor's immune cells, thus providing valuable information about the immune status of the donor. However, implementation of LSPR bionanosensing in cellular functional immunoanalysis based on a cytokine secretion assay poses major challenges primarily owing to its limited sensitivity and a lack of sufficient sample handling capability. In this paper, we have developed a label-free LSPR biosensing technique to detect cell-secreted tumor necrosis factor (TNF)-α cytokines in clinical blood samples. Our approach integrates LSPR bionanosensors in an optofluidic platform that permits trapping and stimulation of target immune cells in a microfluidic chamber with optical access for subsequent cytokine detection. The on-chip spatial confinement of the cells is the key to rapidly increasing a cytokine concentration high enough for detection by the LSPR setup, thereby allowing the assay time and sample volume to be significantly reduced. We have successfully applied this approach first to THP-1 cells and then later to CD45 cells isolated directly from human blood. Our LSPR optofluidics device allows for detection of TNF-α secreted from cells as few as 1000, which translates into a nearly 100 times decrease in sample volume than conventional cytokine secretion assay techniques require. We achieved cellular functional immunoanalysis with a minimal blood sample volume (3 μL) and a total assay time 3 times shorter than that of the conventional enzyme-linked immunosorbent assay (ELISA).
Collapse
Affiliation(s)
- Bo-Ram Oh
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nien-Tsu Huang
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Electrical Engineering, Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Weiqiang Chen
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jung Hwan Seo
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Mechanical and Design Engineering, Hongik University, Seoul, South Korea
| | - Pengyu Chen
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Timothy T. Cornell
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Thomas P. Shanley
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Katsuo Kurabayashi
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
- Address correspondence to
| |
Collapse
|
49
|
Chen W, Huang NT, Li X, Yu ZTF, Kurabayashi K, Fu J. Emerging microfluidic tools for functional cellular immunophenotyping: a new potential paradigm for immune status characterization. Front Oncol 2013; 3:98. [PMID: 23626950 DOI: 10.3389/fonc.2013.00098] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 04/10/2013] [Indexed: 11/13/2022] Open
Abstract
Rapid, accurate, and quantitative characterization of immune status of patients is of utmost importance for disease diagnosis and prognosis, evaluating efficacy of immunotherapeutics and tailoring drug treatments. Immune status of patients is often dynamic and patient-specific, and such complex heterogeneity has made accurate, real-time measurements of patient immune status challenging in the clinical setting. Recent advances in microfluidics have demonstrated promising applications of the technology for immune monitoring with minimum sample requirements and rapid functional immunophenotyping capability. This review will highlight recent developments of microfluidic platforms that can perform rapid and accurate cellular functional assays on patient immune cells. We will also discuss the future potential of integrated microfluidics to perform rapid, accurate, and sensitive cellular functional assays at a single-cell resolution on different types or subpopulations of immune cells, to provide an unprecedented level of information depth on the distribution of immune cell functionalities. We envision that such microfluidic immunophenotyping tools will allow for comprehensive and systems-level immunomonitoring, unlocking the potential to transform experimental clinical immunology into an information-rich science.
Collapse
Affiliation(s)
- Weiqiang Chen
- Integrated Biosystems and Biomechanics Laboratory, University of Michigan Ann Arbor, MI, USA ; Department of Mechanical Engineering, University of Michigan Ann Arbor, MI, USA
| | | | | | | | | | | |
Collapse
|
50
|
Innate immune function and mortality in critically ill children with influenza: a multicenter study. Crit Care Med 2013; 41:224-36. [PMID: 23222256 DOI: 10.1097/ccm.0b013e318267633c] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To prospectively evaluate relationships among serum cytokine levels, innate immune responsiveness, and mortality in a multicenter cohort of critically ill children with influenza infection. DESIGN Prospective, multicenter, observational study. SETTING Fifteen pediatric ICUs among members of the Pediatric Acute Lung Injury and Sepsis Investigators network. PATIENTS Patients ≤18 yrs old admitted to a PICU with community-acquired influenza infection. A control group of outpatient children was also evaluated. INTERVENTIONS ICU patients underwent sampling within 72 hrs of ICU admission for measurement of a panel of 31 serum cytokine levels and quantification of whole blood ex vivo lipopolysaccharide-stimulated tumor necrosis factor-α production capacity using a standardized stimulation protocol. Outpatient control subjects also underwent measurement of tumor necrosis factor-α production capacity. MEASUREMENTS AND MAIN RESULTS Fifty-two patients (44 survivors, eight deaths) were sampled. High levels of serum cytokines (granulocyte macrophage colony-stimulating factor, interleukin-6, interleukin-8, interferon-inducible protein-10, monocyte chemotactic protein-1, and macrophage inflammatory protein-1α) were associated with mortality (p < 0.0016 for each comparison) as was the presence of secondary infection with Staphylococcus aureus (p = 0.007), particularly methicillin-resistant S. aureus (p < 0.0001). Nonsurvivors were immunosuppressed with leukopenia and markedly reduced tumor necrosis factor-α production capacity compared with outpatient control subjects (n = 21, p < 0.0001) and to ICU survivors (p < 0.0001). This association remained after controlling for multiple covariables. A tumor necrosis factor-α response <250 pg/mL was highly predictive of death and longer duration of ICU stay (p < 0.0001). Patients with S. aureus coinfection demonstrated the greatest degree of immunosuppression (p < 0.0001). CONCLUSIONS High serum levels of cytokines can coexist with marked innate immune suppression in children with critical influenza. Severe, early innate immune suppression is highly associated with both S. aureus coinfection and mortality in this population. Multicenter innate immune function testing is feasible and can identify these high-risk children.
Collapse
|