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Ma Z, Jiang Z, Li H, Lu A, Wu S, Lu H, Wen W, Wang L, Yuan F. Prevalence, early predictors, and outcomes of sepsis in neurocritical illnesses: A prospective cohort study. Am J Infect Control 2024; 52:827-833. [PMID: 38281685 DOI: 10.1016/j.ajic.2024.01.017] [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: 10/20/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Patients with neurocritically illness are an under-recognized population at high risk of sepsis. We aimed to investigate the prevalence, early predictors, and outcomes of sepsis in neuro-ICU. METHODS Daily and accumulative incidences of sepsis in neuro-ICU were explored. Demographics, medical history, baseline disease severity scores, and baseline biomarkers regarding inflammation, immunology, organ function, and nutritional status were collected and analyzed as potential predictors of sepsis. Logistic regression analyses were used to determine the independent predictors, and a nomogram was used to estimate the individual probability of sepsis in neuro-ICU. RESULTS 153 patients were included in this study. Fifty-nine (38.6%) patients developed sepsis, and 21 (14%) patients developed septic shock. More than 86% of the septic cases occurred within the first week. Sequential organ failure assessment score ((relative risk) RR 1.334, P = .026), history of diabetes (RR 2.346, P = .049), and transferrin (RR 0.128, P = .042) on admission are independent predictors of sepsis. Septic patients had significantly higher mortality (P = .011), higher medical cost (P = .028), and a lower rate of functional independence (P = .010), compared to patients without sepsis. CONCLUSIONS Sepsis afflicted more than one-third of neurocritically-ill patients and occurred mostly in the first week of admission. History of diabetes, serum transferrin, and sequential organ failure assessment score on admission were early predictors. Sepsis led to significantly worse outcomes and higher medical costs.
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Affiliation(s)
- Zhaohui Ma
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zeping Jiang
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Internal Medicine, Puning Hospital of Chinese Medicine, Puning, Guangdong, China
| | - Huiping Li
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Aili Lu
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shibiao Wu
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongji Lu
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wanxing Wen
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lixin Wang
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou, China.
| | - Fang Yuan
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou, China.
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El Baassiri MG, Raouf Z, Badin S, Escobosa A, Sodhi CP, Nasr IW. Dysregulated brain-gut axis in the setting of traumatic brain injury: review of mechanisms and anti-inflammatory pharmacotherapies. J Neuroinflammation 2024; 21:124. [PMID: 38730498 PMCID: PMC11083845 DOI: 10.1186/s12974-024-03118-3] [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: 02/29/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Traumatic brain injury (TBI) is a chronic and debilitating disease, associated with a high risk of psychiatric and neurodegenerative diseases. Despite significant advancements in improving outcomes, the lack of effective treatments underscore the urgent need for innovative therapeutic strategies. The brain-gut axis has emerged as a crucial bidirectional pathway connecting the brain and the gastrointestinal (GI) system through an intricate network of neuronal, hormonal, and immunological pathways. Four main pathways are primarily implicated in this crosstalk, including the systemic immune system, autonomic and enteric nervous systems, neuroendocrine system, and microbiome. TBI induces profound changes in the gut, initiating an unrestrained vicious cycle that exacerbates brain injury through the brain-gut axis. Alterations in the gut include mucosal damage associated with the malabsorption of nutrients/electrolytes, disintegration of the intestinal barrier, increased infiltration of systemic immune cells, dysmotility, dysbiosis, enteroendocrine cell (EEC) dysfunction and disruption in the enteric nervous system (ENS) and autonomic nervous system (ANS). Collectively, these changes further contribute to brain neuroinflammation and neurodegeneration via the gut-brain axis. In this review article, we elucidate the roles of various anti-inflammatory pharmacotherapies capable of attenuating the dysregulated inflammatory response along the brain-gut axis in TBI. These agents include hormones such as serotonin, ghrelin, and progesterone, ANS regulators such as beta-blockers, lipid-lowering drugs like statins, and intestinal flora modulators such as probiotics and antibiotics. They attenuate neuroinflammation by targeting distinct inflammatory pathways in both the brain and the gut post-TBI. These therapeutic agents exhibit promising potential in mitigating inflammation along the brain-gut axis and enhancing neurocognitive outcomes for TBI patients.
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Affiliation(s)
- Mahmoud G El Baassiri
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Zachariah Raouf
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Sarah Badin
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Alejandro Escobosa
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Chhinder P Sodhi
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Isam W Nasr
- Pediatric Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA.
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Mace BE, Lassiter E, Arulraja EK, Chaparro E, Cantillana V, Gupta R, Faw TD, Laskowitz DT, Kolls BJ. Optimization of a translational murine model of closed-head traumatic brain injury. Neurol Res 2024; 46:304-317. [PMID: 38197610 DOI: 10.1080/01616412.2024.2302261] [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: 05/30/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024]
Abstract
Traumatic brain injury (TBI) from closed-head trauma is a leading cause of disability, with limited effective interventions. Many TBI models impact brain parenchyma directly, and are limited by the fact that these forces do not recapitulate clinically relevant closed head injury. However, applying clinically relevant injury mechanics to the intact skull may lead to variability and as a result, preclinical modeling TBI remains a challenge. Current models often do not explore sex differences in TBI, which is critically important for translation to clinical practice. We systematically investigated sources of variability in a murine model of closed-head TBI and developed a framework to reduce variability across severity and sex. We manipulated pressure, dwell time, and displacement to determine effects on motor coordination, spatial learning, and neuronal damage in 10-week-old male and female mice. Increasing pressure beyond 70 psi had a ceiling effect on cellular and behavioral outcomes, while manipulating dwell time only affected behavioral performance. Increasing displacement precisely graded injury severity in both sexes across all outcomes. Physical signs of trauma occurred more frequently at higher displacements. Stratifying severity based on day-1 rotarod performance retained histological relationships and separated both sexes into injury severity cohorts with distinct patterns of behavioral recovery. Utilizing this stratification strategy, within-group rotarod variability over 6 days post-injury was reduced by 50%. These results have important implications for translational research in TBI and provide a framework for using this clinically relevant translational injury model in both male and female mice.
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Affiliation(s)
- Brian E Mace
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
| | - Eric Lassiter
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
| | | | - Eduardo Chaparro
- School of Medicine Department of Neurosurgery, Duke University, Durham, USA
| | - Viviana Cantillana
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
| | - Rupali Gupta
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
| | - Timothy D Faw
- School of Medicine Department of Orthopaedic Surgery, Duke University, Durham, USA
| | - Daniel T Laskowitz
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
- School of Medicine Department of Neurosurgery, Duke University, Durham, USA
| | - Brad J Kolls
- School of Medicine Department of Neurology, Brain Injury Translational Research Laboratory, Duke University, Durham, USA
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4
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Scott MC, LeBlanc O, Day H, Haase C, Olson SD, Cox CS. Cytokine Release by Microglia Exposed to Neurologic Injury Is Amplified by Lipopolysaccharide. J Surg Res 2024; 296:142-148. [PMID: 38277950 DOI: 10.1016/j.jss.2023.12.021] [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: 03/09/2023] [Revised: 11/28/2023] [Accepted: 12/25/2023] [Indexed: 01/28/2024]
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a leading cause of death and morbidity in the trauma population. Microglia drive the secondary neuroinflammatory response after TBI. We sought to determine if the microglial response to neurologic injury was exacerbated by a second stimulus after exposure to neurologic injury. METHODS Sprague-Dawley rats (age 2-3 wk) were divided into injured and noninjured groups. Injured rats underwent a controlled cortical impact injury; noninjured rats remained naïve to any injury and served as the control group. Primary rat microglia were isolated and applied to in vitro cultures. After incubation for 24 h, the microglia were stimulated with lipopolysaccharide (LPS) or norepinephrine. Twenty-four hours after stimulation, cell culture supernatant was collected. Tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) production were measured by standard enzyme-linked immunosorbent assays. GraphPad Prism was used for statistical analysis. RESULTS When compared to noninjured microglia, LPS induced a significantly greater production of TNF-α in microglia isolated from the injured ipsilateral (versus noninjured = 938.8 ± 155.1, P < 0.0001) and injured contralateral hemispheres (versus noninjured = 426.6 ± 155.1, P < 0.0001). When compared to microglia from noninjured cerebral tissue, IL-6 production was significantly greater after LPS stimulation in the injured ipsilateral hemisphere (mean difference versus noninjured = 9540 ± 3016, P = 0.0101) and the contralateral hemisphere (16,700 ± 3016, P < 0.0001). Norepinephrine did not have a significant effect on IL-6 or TNF-α production. CONCLUSIONS LPS stimulation may amplify the release of proinflammatory cytokines from postinjury microglia. These data suggest that post-TBI complications, like sepsis, may propagate neuroinflammation by augmenting the proinflammatory response of microglia.
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Affiliation(s)
- Michael C Scott
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas.
| | - Olivia LeBlanc
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Harper Day
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Candice Haase
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Scott D Olson
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Charles S Cox
- Department of Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, Texas
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5
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Gandasasmita N, Li J, Loane DJ, Semple BD. Experimental Models of Hospital-Acquired Infections After Traumatic Brain Injury: Challenges and Opportunities. J Neurotrauma 2024; 41:752-770. [PMID: 37885226 DOI: 10.1089/neu.2023.0453] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
Patients hospitalized after a moderate or severe traumatic brain injury (TBI) are at increased risk of nosocomial infections, including bacterial pneumonia and other upper respiratory tract infections. Infections represent a secondary immune challenge for vulnerable TBI patients that can lead to increased morbidity and poorer long-term prognosis. This review first describes the clinical significance of infections after TBI, delving into the known mechanisms by which a TBI can alter systemic immunological responses towards an immunosuppressive state, leading to promotion of increased vulnerability to infections. Pulmonary dysfunction resulting from respiratory tract infections is considered in the context of neurotrauma, including the bidirectional relationship between the brain and lungs. Turning to pre-clinical modeling, current laboratory approaches to study experimental TBI and lung infections are reviewed, to highlight findings from the limited key studies to date that have incorporated both insults. Then, practical decisions for the experimental design of animal studies of post-injury infections are discussed. Variables associated with the host animal, the infectious agent (e.g., species, strain, dose, and administration route), as well as the timing of the infection relative to the injury model are important considerations for model development. Together, the purpose of this review is to highlight the significant clinical need for increased pre-clinical research into the two-hit insult of a hospital-acquired infection after TBI to encourage further scientific enquiry in the field.
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Affiliation(s)
| | - Jian Li
- Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Department of Microbiology, Monash University, Melbourne, Victoria, Australia
| | - David J Loane
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Bridgette D Semple
- Department of Neuroscience, Monash University, Melbourne, Victoria, Australia
- Department of Neurology, Alfred Health, Prahran, Victoria, Australia
- Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, Victoria, Australia
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6
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Bender M, Friedrich M, Voigtmann H, Haferkorn K, Uhl E, Stein M. Impact of Serum Lactate as an Early Serum Biomarker for Cardiopulmonary Parameters within the First 24 Hours of Intensive Care Unit Treatment in Patients with Isolated Traumatic Brain Injury. Diagnostics (Basel) 2023; 13:diagnostics13101777. [PMID: 37238261 DOI: 10.3390/diagnostics13101777] [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: 04/07/2023] [Revised: 05/03/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
OBJECTIVE Cardiopulmonary (CP) complications are well-known phenomena in patients with isolated traumatic brain injury (iTBI) that can lead to tissue hypoperfusion and hypoxia. Serum lactate level is a well-known biomarker, indicating these systemic dysregulations in various diseases, but this has not been investigated in iTBI patients so far. The current study evaluates the association between serum lactate levels upon admission and CP parameters within the first 24 h of intensive care unit (ICU) treatment in iTBI patients. PATIENTS AND METHODS 182 patients with iTBI who were admitted to our neurosurgical ICU between December 2014 and December 2016 were retrospectively evaluated. Serum lactate levels on admission, demographic, medical, and radiological data upon admission, as well as several CP parameters within the first 24 h of ICU treatment, were analyzed, as well as the functional outcome at discharge. The total study population was dichotomized into patients with an elevated serum lactate level (lactate-positive) and patients with a low serum lactate level (lactate-negative) upon admission. RESULTS 69 patients (37.9%) had an elevated serum lactate level upon admission, which was significantly associated with a lower Glasgow Coma Scale score (p = 0.04), a higher head AIS score (p = 0.03), and a higher Acute Physiology and Chronic Health Evaluation II score (p = 0.01) upon admission, as well as a higher modified Rankin Scale score (p = 0.002) and a lower Glasgow Outcome Scale score (p < 0.0001) at discharge. Furthermore, the lactate-positive group required a significantly higher norepinephrine application rate (NAR; p = 0.04) and a higher fraction of inspired oxygen (FiO2; p = 0.04) to maintain the defined CP parameters within the first 24 h. CONCLUSION ICU-admitted iTBI patients with elevated serum lactate levels upon admission required higher CP support within the first 24 h of ICU treatment after iTBI. Serum lactate may be a helpful biomarker for improving ICU treatment in the early stages.
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Affiliation(s)
- Michael Bender
- Department of Neurosurgery, Justus-Liebig-University, 35392 Gießen, Germany
| | - Michaela Friedrich
- Department of Neurosurgery, Hospital Aschaffenburg-Alzenau, 63739 Aschaffenburg, Germany
| | - Hans Voigtmann
- Department of Neurosurgery, Justus-Liebig-University, 35392 Gießen, Germany
| | - Kristin Haferkorn
- Department of Neurosurgery, Justus-Liebig-University, 35392 Gießen, Germany
| | - Eberhard Uhl
- Department of Neurosurgery, Justus-Liebig-University, 35392 Gießen, Germany
| | - Marco Stein
- Department of Neurosurgery, Justus-Liebig-University, 35392 Gießen, Germany
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7
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Caceres E, Olivella JC, Yanez M, Viñan E, Estupiñan L, Boada N, Martin-Loeches I, Reyes LF. Risk factors and outcomes of lower respiratory tract infections after traumatic brain injury: a retrospective observational study. Front Med (Lausanne) 2023; 10:1077371. [PMID: 37138738 PMCID: PMC10150376 DOI: 10.3389/fmed.2023.1077371] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 03/22/2023] [Indexed: 05/05/2023] Open
Abstract
Background Traumatic brain injury (TBI) is a public health problem with a high burden in terms of disability and death. Infections are a common complication, with respiratory infections being the most frequent. Most available studies have addressed the impact of ventilator-associated pneumonia (VAP) after TBI; therefore, we aim to characterize the hospital impact of a broader entity, lower respiratory tract infections (LRTIs). Methods This observational, retrospective, single-center cohort study describes the clinical features and risk factors associated with LRTIs in patients with TBI admitted to an intensive care unit (ICU). We used bivariate and multivariate logistic regressions to identify the risk factors associated with developing LRTI and determine its impact on hospital mortality. Results We included 291 patients, of whom 77% (225/291) were men. The median (IQR) age was 38 years (28-52 years). The most common cause of injury was road traffic accidents 72% (210/291), followed by falls 18% (52/291) and assault at 3% (9/291). The median (IQR) Glasgow Coma Scale (GCS) score on admission was 9 (6-14), and 47% (136/291) were classified as severe TBI, 13% (37/291) as moderate TBI, and 40% (114/291) as mild TBI. The median (IQR) injury severity score (ISS) was 24 (16-30). Nearly 48% (141/291) of patients presented at least one infection during hospitalization, and from those, 77% (109/141) were classified as LRTIs, which included tracheitis 55% (61/109), ventilator-associated pneumonia (VAP) 34% (37/109), and hospital-acquired pneumoniae (HAP) 19% (21/109). After multivariable analysis, the following variables were significantly associated with LRTIs: age (OR 1.1, 95% CI 1.01-1.2), severe TBI (OR 2.7, 95% CI 1.1-6.9), AIS thorax (OR 1.4, 95 CI 1.1-1.8), and mechanical ventilation on admission (OR 3.7, 95% CI 1.1-13.5). At the same time, hospital mortality did not differ between groups (LRTI 18.6% vs. No LRTI 20.1%, p = 0.7), and ICU and hospital length of stay (LOS) were longer in the LRTI group (median [IQR] 12 [9-17] vs. 5 [3-9], p < 0.01) and (median [IQR] 21 [13-33] vs. 10 [5-18], p = 0.01), respectively. Time on the ventilator was longer for those with LRTIs. Conclusion The most common site/location of infection in patients with TBI admitted to ICU is respiratory. Age, severe TBI, thoracic trauma, and mechanical ventilation were identified as potential risk factors. LRTI was associated with prolonged ICU, hospital stay, and more days on a ventilator, but not with mortality.
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Affiliation(s)
- Eder Caceres
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
- Neurocritical Care Division, Critical Care Department, Clínica Universidad de La Sabana, Chía, Colombia
| | - Juan C. Olivella
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
| | - Miguel Yanez
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
| | - Emilio Viñan
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
| | - Laura Estupiñan
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
| | - Natalia Boada
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
| | - Ignacio Martin-Loeches
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Multidisciplinary Intensive Care Research Organization (MICRO), Department of Intensive Care Medicine, St. James's University Hospital, Dublin, Ireland
- Critical Care Department, Trinity Centre for Health Sciences, Dublin, Ireland
- Hospital Clínic, IDIBAPS, Universidad de Barcelona, Barcelona, Spain
| | - Luis Felipe Reyes
- Unisabana Center for Translational Science, Universidad de La Sabana, Chía, Colombia
- Facultad de Medicina, Universidad de La Sabana, Chía, Colombia
- Pandemic Science Institute, University of Oxford, Oxford, United Kingdom
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Réa-Neto Á, da Silva Júnior ED, Hassler G, Dos Santos VB, Bernardelli RS, Kozesinski-Nakatani AC, Martins-Junior MJ, Reese FB, Cosentino MB, Oliveira MC, Teive HAG. Epidemiological and clinical characteristics predictive of ICU mortality of patients with traumatic brain injury treated at a trauma referral hospital - a cohort study. BMC Neurol 2023; 23:101. [PMID: 36890473 PMCID: PMC9993710 DOI: 10.1186/s12883-023-03145-2] [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: 09/26/2022] [Accepted: 02/27/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND Traumatic brain injury (TBI) has substantial physical, psychological, social and economic impacts, with high rates of morbidity and mortality. Considering its high incidence, the aim of this study was to identify epidemiological and clinical characteristics that predict mortality in patients hospitalized for TBI in intensive care units (ICUs). METHODS A retrospective cohort study was carried out with patients over 18 years old with TBI admitted to an ICU of a Brazilian trauma referral hospital between January 2012 and August 2019. TBI was compared with other traumas in terms of clinical characteristics of ICU admission and outcome. Univariate and multivariate analyses were used to estimate the odds ratio for mortality. RESULTS Of the 4816 patients included, 1114 had TBI, with a predominance of males (85.1%). Compared with patients with other traumas, patients with TBI had a lower mean age (45.3 ± 19.1 versus 57.1 ± 24.1 years, p < 0.001), higher median APACHE II (19 versus 15, p < 0.001) and SOFA (6 versus 3, p < 0.001) scores, lower median Glasgow Coma Scale (GCS) score (10 versus 15, p < 0.001), higher median length of stay (7 days versus 4 days, p < 0.001) and higher mortality (27.6% versus 13.3%, p < 0.001). In the multivariate analysis, the predictors of mortality were older age (OR: 1.008 [1.002-1.015], p = 0.016), higher APACHE II score (OR: 1.180 [1.155-1.204], p < 0.001), lower GCS score for the first 24 h (OR: 0.730 [0.700-0.760], p < 0.001), greater number of brain injuries and presence of associated chest trauma (OR: 1.727 [1.192-2.501], p < 0.001). CONCLUSION Patients admitted to the ICU for TBI were younger and had worse prognostic scores, longer hospital stays and higher mortality than those admitted to the ICU for other traumas. The independent predictors of mortality were older age, high APACHE II score, low GCS score, number of brain injuries and association with chest trauma.
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Affiliation(s)
- Álvaro Réa-Neto
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil. .,Internal Medicine Department, Hospital de Clínicas, Federal University of Paraná, General Carneiro Street, 181, Curitiba, Paraná, 80060-900, Brazil.
| | | | - Gabriela Hassler
- Federal University of Paraná, General Carneiro Street, 181, Curitiba, Paraná, 80060-900, Brazil
| | - Valkiria Backes Dos Santos
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil
| | - Rafaella Stradiotto Bernardelli
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil.,School of Medicine and Life Sciences, Pontifical Catholic University of Paraná, Imaculada Conceição Street, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Amanda Christina Kozesinski-Nakatani
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil.,Hospital Santa Casa de Curitiba., Praça Rui Barbosa, 694, Curitiba, Paraná, 80010-030, Brazil
| | - Marcelo José Martins-Junior
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil
| | - Fernanda Baeumle Reese
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Mariana Bruinje Cosentino
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Mirella Cristine Oliveira
- Center for Studies and Research in Intensive Care Medicine (CEPETI), Monte Castelo Street, 366, Curitiba, Paraná, 82530-200, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Hélio Afonso Ghizoni Teive
- Neurology Service, Internal Medicine Department, Hospital de Clínicas, Federal University of Paraná, General Carneiro Street, 181, Curitiba, Paraná, 80060-900, Brazil
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9
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Chang HYM, Flahive J, Bose A, Goostrey K, Osgood M, Carandang R, Hall W, Muehlschlegel S. Predicting mortality in moderate-severe TBI patients without early withdrawal of life-sustaining treatments including ICU complications: The MYSTIC-score. J Crit Care 2022; 72:154147. [PMID: 36166912 DOI: 10.1016/j.jcrc.2022.154147] [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: 01/16/2022] [Revised: 08/12/2022] [Accepted: 08/28/2022] [Indexed: 12/15/2022]
Abstract
PURPOSE To develop and internally validate the MortalitY in Moderate-Severe TBI plus ICU Complications (MYSTIC)-Score to predict in-hospital mortality of msTBI patients without early (<24 h) withdrawal-of-life-sustaining treatments. METHODS We analyzed data from a Neuro-Trauma Intensive Care Unit prospectively collected between 11/2009-5/2019. Consecutive adult msTBI patients were included if Glasgow Coma Scale≤12, and neither died nor had withdrawal-of-life-sustaining treatments within 24 h of admission (n = 485). Using univariate and multivariable logistic regression in a random-split cohort approach (2/3 derivation;1/3 validation), we identified independent predictors of in-hospital mortality while adjusting for validated predictors of mortality (IMPACT-variables). We constructed the MYSTIC-Score and examined discrimination and calibration. RESULTS The MYSTIC-Score included the ICU complications brain edema, herniation, systemic inflammatory response syndrome, sepsis, acute kidney injury, cardiac arrest, and urinary tract infection. In the derivation cohort(n = 324), discrimination and calibration were excellent (area-under-the-receiver-operating-curve [AUC-ROC] = 0.95;Hosmer-Lemeshow p-value = 0.09, with p > 0.05 indicating good calibration). Internal validation revealed an AUC-ROC = 0.93 and Hosmer-Lemeshow-p-value = 0.76 (n = 161). CONCLUSIONS Certain ICU complications are independent predictors of in-hospital mortality and strengthen outcome prediction in msTBI when combined with validated admission predictors of mortality. However, external validation is needed to determine robustness and practical applicability of our model given the high potential for residual confounders.
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Affiliation(s)
- Han Yan Michelle Chang
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Julie Flahive
- Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Abigail Bose
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Kelsey Goostrey
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Marcey Osgood
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Surgery and University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Raphael Carandang
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Surgery and University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Anesthesia/Critical Care, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Wiley Hall
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Surgery and University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
| | - Susanne Muehlschlegel
- Departments of Neurology, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Surgery and University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA; Anesthesia/Critical Care, University of Massachusetts Chan Medical School, 55 Lake Ave North, S-5., Worcester, MA 01655, USA.
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Clark A, Zelmanovich R, Vo Q, Martinez M, Nwafor DC, Lucke-Wold B. Inflammation and the role of infection: Complications and treatment options following neurotrauma. J Clin Neurosci 2022; 100:23-32. [PMID: 35381478 DOI: 10.1016/j.jocn.2022.03.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/14/2022] [Accepted: 03/29/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury can have devastating consequences for patients and extended hospital stays and recovery course. Recent data indicate that the initial insult causes profound changes to the immune system and leads to a pro-inflammatory state. This alteration in homeostasis predisposes patients to an increased risk of infection and underlying autoimmune conditions. Increased emphasis has been placed on understanding this process both in the clinical and preclinical literature. This review highlights the intrinsic inflammatory conditions that can occur within the initial hospital stay, discusses long-term immune consequences, highlights emerging treatment options, and delves into important pathways currently being investigated with preclinical models.
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Affiliation(s)
- Alec Clark
- University of Central Florida, College of Medicine, Orlando, USA
| | | | - Quan Vo
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Divine C Nwafor
- Department of Neurosurgery, West Virginia University, Morgantown, USA
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