1
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Wang L, Chen L, Jin Y, Cao X, Xue L, Cheng Q. Clinical value of the low-grade inflammation score in aneurysmal subarachnoid hemorrhage. BMC Neurol 2023; 23:436. [PMID: 38082254 PMCID: PMC10712030 DOI: 10.1186/s12883-023-03490-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND AND PURPOSE Multiple inflammatory biomarkers have been shown to predict symptomatic cerebral vasospasm (SCVS) and poor functional outcome in patients with aneurysmal subarachnoid hemorrhage. However, the impact of the low-grade inflammation (LGI) score, which can reflect the synergistic effects of five individual inflammatory biomarkers on SCVS and poor functional outcome on aneurysmal subarachnoid hemorrhage (aSAH), has not yet been well established. The aim of this study was to evaluate the impact of the LGI score on SCVS and poor functional outcome in aSAH patients. METHODS The LGI score was calculated as the sum of 10 quantiles of each individual inflammatory biomarker. The association of the LGI score with the risk of SCVS and poor functional outcome was analyzed with multivariate logistical regression. RESULTS A total of 270 eligible aSAH patients were included in this study: 74 (27.4%) had SCVS, and 79 (29.3%) had poor functional outcomes. After adjusting for confounders, a higher LGI score was revealed to independently predict SCVS (OR, 1.083; 95% CI, 1.011-1.161; P = 0.024) and poor functional outcome (OR, 1.132; 95% CI, 1.023-1.252; P = 0.016), and the second and third tertile group had higher risk of SCVS than lowest tertile group (OR, 2.826; 95% CI, 1.090-7.327; P = 0.033) (OR, 3.243; 95% CI, 1.258-8.358; P = 0.015). The receiver operating characteristic (ROC) curve uncovered the ability of the LGI score to distinguish patients with and without SCVS (area under the curve [AUC] = 0.746; 95% CI, 0.690-0.797; P < 0.001) and poor functional outcomes (area under the curve [AUC] = 0.799; 95% CI, 0.746-0.845; P < 0.001), the predictive value of LGI on SCVS and poor functional outcome is superior than PLT, NLR and WBC, but there was no statistical difference between LGI and CRP for predicting SCVS (P = 0.567) and poor functional outcome (P = 0.171). CONCLUSIONS A higher LGI which represents severe low grade inflammation status is associated with SCVS and poor functional outcome at 3 months after aSAH.
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Affiliation(s)
- Ling Wang
- Department of Neurology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ling Chen
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yang Jin
- Department of Neurology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huaian, Jiangsu, China
| | - Xiangyang Cao
- Department of Neurology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huaian, Jiangsu, China
| | - Liujun Xue
- Department of Neurology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Qiantao Cheng
- Department of Neurology, Huai' an 82 hospital, Huaian, Jiangsu, China.
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2
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Prame Kumar K, McKay LD, Nguyen H, Kaur J, Wilson JL, Suthya AR, McKeown SJ, Abud HE, Wong CHY. Sympathetic-Mediated Intestinal Cell Death Contributes to Gut Barrier Impairment After Stroke. Transl Stroke Res 2023:10.1007/s12975-023-01211-y. [PMID: 38030854 DOI: 10.1007/s12975-023-01211-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/25/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023]
Abstract
Tissue injury induced by stroke is traditionally thought to be localised to the brain. However, there is an accumulating body of evidence to demonstrate that stroke promotes pathophysiological consequences in peripheral tissues including the gastrointestinal system. In this study, we investigated the mechanisms underlying gut permeability after stroke. We utilised the clinically relevant experimental model of stroke called permanent intraluminal middle cerebral artery occlusion (pMCAO) to examine the effect of cerebral ischaemia on the gut. We detected stroke-induced gut permeability at 5 h after pMCAO. At this timepoint, we observed significantly elevated intestinal epithelial cell death in post-stroke mice compared to their sham-operated counterparts. At 24 h after stroke onset when the gut barrier integrity is restored, our findings indicated that post-stroke intestinal epithelium had higher expression of genes associated with fructose metabolism, and hyperplasia of intestinal crypts and goblet cells, conceivably as a host compensatory mechanism to adapt to the impaired gut barrier. Furthermore, we discovered that stroke-induced gut permeability was mediated by the activation of the sympathetic nervous system as pharmacological denervation decreased the stroke-induced intestinal epithelial cell death, goblet cell and crypt hyperplasia, and gut permeability to baseline levels. Our study identifies a previously unknown mechanism in the brain-gut axis by which stroke triggers intestinal cell death and gut permeability.
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Affiliation(s)
- Kathryn Prame Kumar
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia
| | - Liam D McKay
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia
| | - Huynh Nguyen
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia
| | - Jasveena Kaur
- Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Biomedical Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Jenny L Wilson
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia
| | - Althea R Suthya
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia
| | - Sonja J McKeown
- Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Biomedical Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Helen E Abud
- Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Biomedical Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Connie H Y Wong
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, 3168, Australia.
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3
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Zhang A, Liu Y, Wang X, Xu H, Fang C, Yuan L, Wang K, Zheng J, Qi Y, Chen S, Zhang J, Shao A. Clinical Potential of Immunotherapies in Subarachnoid Hemorrhage Treatment: Mechanistic Dissection of Innate and Adaptive Immune Responses. Aging Dis 2023; 14:1533-1554. [PMID: 37196120 PMCID: PMC10529760 DOI: 10.14336/ad.2023.0126] [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: 11/07/2022] [Accepted: 01/26/2023] [Indexed: 05/19/2023] Open
Abstract
Subarachnoid hemorrhage (SAH), classified as a medical emergency, is a devastating and severe subtype of stroke. SAH induces an immune response, which further triggers brain injury; however, the underlying mechanisms need to be further elucidated. The current research is predominantly focused on the production of specific subtypes of immune cells, especially innate immune cells, post-SAH onset. Increasing evidence suggests the critical role of immune responses in SAH pathophysiology; however, studies on the role and clinical significance of adaptive immunity post-SAH are limited. In this present study, we briefly review the mechanistic dissection of innate and adaptive immune responses post-SAH. Additionally, we summarized the experimental studies and clinical trials of immunotherapies for SAH treatment, which may form the basis for the development of improved therapeutic approaches for the clinical management of SAH in the future.
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Affiliation(s)
- Anke Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Yibo Liu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Xiaoyu Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Houshi Xu
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Chaoyou Fang
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Ling Yuan
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - KaiKai Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Jingwei Zheng
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Yangjian Qi
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Sheng Chen
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Jianmin Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, China.
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, Zhejiang, China.
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China.
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4
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Bouchier B, Demarquay G, Dailler F, Lukaszewicz AC, Ritzenthaler T. Course of Headaches and Predictive Factors Associated With Analgesia Failure Following Spontaneous Subarachnoid Hemorrhage: A Prospective Cohort Study. J Neurosurg Anesthesiol 2023; 35:333-337. [PMID: 35499145 DOI: 10.1097/ana.0000000000000843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/09/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Headache is the most common presenting symptom of spontaneous subarachnoid hemorrhage and managing this acute pain can be challenging. The aim of this study was to describe the course of headaches and factors associated with analgesic failure in patients with spontaneous subarachnoid hemorrhage. METHODS We conducted a prospective observational study in patients admitted to a neurocritical care unit (between April 2016 and March 2017) within 48 hours of spontaneous subarachnoid hemorrhage. Headache intensity was assessed using a Numerical Pain Rating Scale (NPRS) ranging from 0 to 10. Analgesic failure was defined as any day average NPRS score >3 after 72 hours of hospitalization despite analgesic treatment. RESULTS Sixty-three patients were included in the analysis. Thirty-six (56.25%) patients experienced at least 1 episode of severe headache (NPRS ≥7), and 40 (63.5%) patients still reported moderate to severe headache on the final day of the study (day 12). Forty-six (73.0%) patients required treatment with opioids and 37 (58.7%) experienced analgesic failure. Multivariable analysis showed that analgesic failure was associated with smoking history (odds ratio [OR]=4.31, 95% confidence interval [CI]: 1.23-17.07; P =0.027), subarachnoid blood load (OR=1.11, 95% CI: 1.01-1.24; P =0.032) and secondary complications, including rebleeding, hydrocephalus, delayed cerebral ischemia, hyponatremia, or death (OR=4.06, 95% CI: 1.17-15.77; P =0.032). CONCLUSIONS Headaches following spontaneous subarachnoid hemorrhage are severe and persist during hospitalization despite standard pain-reducing strategies. We identified risk factors for analgesic failure in this population.
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Affiliation(s)
| | - Geneviève Demarquay
- Fontional Neurology and Epileptology Unit, Pierre Wertheimer Hospital, Hospices Civils de Lyon
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard-Lyon 1, Bron
| | | | - Anne-Claire Lukaszewicz
- Neurocrirtical Care Unit
- Université Claude Bernard-Lyon 1
- Université Claude Bernard Lyon 1/Hospices Civils de Lyon/bioMérieux, Lyon, France
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5
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Chai CZ, Ho UC, Kuo LT. Systemic Inflammation after Aneurysmal Subarachnoid Hemorrhage. Int J Mol Sci 2023; 24:10943. [PMID: 37446118 DOI: 10.3390/ijms241310943] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023] Open
Abstract
Aneurysmal subarachnoid hemorrhage (aSAH) is one of the most severe neurological disorders, with a high mortality rate and severe disabling functional sequelae. Systemic inflammation following hemorrhagic stroke may play an important role in mediating intracranial and extracranial tissue damage. Previous studies showed that various systemic inflammatory biomarkers might be useful in predicting clinical outcomes. Anti-inflammatory treatment might be a promising therapeutic approach for improving the prognosis of patients with aSAH. This review summarizes the complicated interactions between the nervous system and the immune system.
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Affiliation(s)
- Chang-Zhang Chai
- Department of Medical Education, National Taiwan University, School of Medicine, Taipei 100, Taiwan
| | - Ue-Cheung Ho
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital Yunlin Branch, Yunlin 640, Taiwan
| | - Lu-Ting Kuo
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital Yunlin Branch, Yunlin 640, Taiwan
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan
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6
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Laaksonen M, Rinne J, Rahi M, Posti JP, Laitio R, Kivelev J, Saarenpää I, Laukka D, Frösen J, Ronkainen A, Bendel S, Långsjö J, Ala-Peijari M, Saunavaara J, Parkkola R, Nyman M, Martikainen IK, Dickens AM, Rinne J, Valtonen M, Saari TI, Koivisto T, Bendel P, Roine T, Saraste A, Vahlberg T, Tanttari J, Laitio T. Effect of xenon on brain injury, neurological outcome, and survival in patients after aneurysmal subarachnoid hemorrhage-study protocol for a randomized clinical trial. Trials 2023; 24:417. [PMID: 37337295 PMCID: PMC10280919 DOI: 10.1186/s13063-023-07432-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/05/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage (aSAH) is a neurological emergency, affecting a younger population than individuals experiencing an ischemic stroke; aSAH is associated with a high risk of mortality and permanent disability. The noble gas xenon has been shown to possess neuroprotective properties as demonstrated in numerous preclinical animal studies. In addition, a recent study demonstrated that xenon could attenuate a white matter injury after out-of-hospital cardiac arrest. METHODS The study is a prospective, multicenter phase II clinical drug trial. The study design is a single-blind, prospective superiority randomized two-armed parallel follow-up study. The primary objective of the study is to explore the potential neuroprotective effects of inhaled xenon, when administered within 6 h after the onset of symptoms of aSAH. The primary endpoint is the extent of the global white matter injury assessed with magnetic resonance diffusion tensor imaging of the brain. DISCUSSION Despite improvements in medical technology and advancements in medical science, aSAH mortality and disability rates have remained nearly unchanged for the past 10 years. Therefore, new neuroprotective strategies to attenuate the early and delayed brain injuries after aSAH are needed to reduce morbidity and mortality. TRIAL REGISTRATION ClinicalTrials.gov NCT04696523. Registered on 6 January 2021. EudraCT, EudraCT Number: 2019-001542-17. Registered on 8 July 2020.
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Affiliation(s)
- Mikael Laaksonen
- Department of Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital and University of Turku, P.O. Box 52, FIN-20521, Turku, Finland.
| | - Jaakko Rinne
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Melissa Rahi
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Jussi P Posti
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Ruut Laitio
- Department of Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital and University of Turku, P.O. Box 52, FIN-20521, Turku, Finland
| | - Juri Kivelev
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Ilkka Saarenpää
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Dan Laukka
- Neurocenter, Department of Neurosurgery and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Juhana Frösen
- Department of Neurosurgery, Faculty of Medicine and Health Technology, Tampere University Hospital, University of Tampere, Tampere, Finland
| | - Antti Ronkainen
- Department of Neurosurgery, Faculty of Medicine and Health Technology, Tampere University Hospital, University of Tampere, Tampere, Finland
| | - Stepani Bendel
- Department of Intensive Care, Kuopio University Hospital, University of Eastern Finland, Kuopio, Finland
| | - Jaakko Långsjö
- Department of Anesthesiology and Intensive Care, Tampere University Hospital and University of Tampere, Tampere, Finland
| | - Marika Ala-Peijari
- Department of Anesthesiology and Intensive Care, Tampere University Hospital and University of Tampere, Tampere, Finland
| | - Jani Saunavaara
- Department of Medical Physics, Turku University Hospital and University of Turku, Turku, Finland
| | - Riitta Parkkola
- Department of Radiology, Turku University Hospital and University of Turku, Turku, Finland
| | - Mikko Nyman
- Department of Radiology, Turku University Hospital and University of Turku, Turku, Finland
| | - Ilkka K Martikainen
- Department of Radiology, Tampere University Hospital and University of Tampere, Tampere, Finland
| | - Alex M Dickens
- Analysis of the metabolomics, University of Turku, Turku BioscienceTurku, Finland
| | - Juha Rinne
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland
| | - Mika Valtonen
- Department of Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital and University of Turku, P.O. Box 52, FIN-20521, Turku, Finland
| | - Teijo I Saari
- Department of Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital and University of Turku, P.O. Box 52, FIN-20521, Turku, Finland
| | - Timo Koivisto
- Department of Neurosurgery, Kuopio University Hospital, University of Eastern Finland, NeurocenterKuopio, Finland
| | - Paula Bendel
- Department of Radiology, Kuopio University Hospital, Kuopio, Finland
| | - Timo Roine
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Espoo, Finland
| | - Antti Saraste
- Heart Centre, Turku University Hospital, Turku University Hospital and University of Turku, Turku, Finland
| | - Tero Vahlberg
- Department of Biostatistics, University of Turku, Turku, Finland
| | - Juha Tanttari
- Technical Analysis, Elomatic Consulting & Engineering, Thane, India
| | - Timo Laitio
- Department of Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital and University of Turku, P.O. Box 52, FIN-20521, Turku, Finland
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7
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Shim R, Wilson JL, Phillips SE, Lambert GW, Wen SW, Wong CHY. The role of β 2 adrenergic receptor on infection development after ischaemic stroke. Brain Behav Immun Health 2021; 18:100393. [PMID: 34877554 PMCID: PMC8633818 DOI: 10.1016/j.bbih.2021.100393] [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: 08/12/2021] [Revised: 10/31/2021] [Accepted: 11/21/2021] [Indexed: 01/17/2023] Open
Abstract
Mechanisms underlying post-stroke immune impairments and subsequent development of fatal lung infection have been suggested to involve multiple pathways, including hyperactivation of the sympathetic nervous system (SNS), which results in the excessive release of catecholamines and activation of β-adrenergic receptors (βARs). Indeed, previous reports from experimental studies demonstrated that post-stroke infection can be inhibited with treatment of β-blockers. However, the effectiveness of β-blockers in reducing post-stroke infection has yielded mixed results in retrospective clinical trials and its use remain controversial. In this study, we performed mid-cerebral artery occlusion in mice either genetically deficient in β2-adrenergic receptor (β2AR) or treated with non-selective and selective βAR antagonists to explore the contributions of the SNS in the development of post-stroke lung infection. Stroke induced a systemic activation of the SNS as indicated by elevated levels of plasma catecholamines and UCP-1 activity. However, β2AR deficient mice showed similar degrees of post-stroke immune impairment and infection rate compared to wildtype counterparts, potentially due to compensatory mechanisms common in transgenic animals. To overcome this, we treated post-stroke wildtype mice with pharmacological inhibitors of the βARs, including the non-selective antagonist propranolol (PPL) and selective β2AR antagonist ICI-118551. Both pharmacological strategies to block the action of SNS signalling were unable to reduce infection in mice that underwent ischaemic stroke. Overall, our data suggests that other mechanisms independent or in combination with β2AR activation contribute to the development of post-stroke infection. Ischaemic stroke induced a systemic activation of the sympathetic nervous system. Mice deficient of β2 adrenergic receptor showed similar post-stroke infection and signs of immune impairment compared to wildtype counterparts. Pharmacological blockade of sympathetic signalling was unable to reduce infection in mice after stroke.
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Affiliation(s)
- Raymond Shim
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Jenny L Wilson
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Sarah E Phillips
- Inversion Health Innovation Research Institute and School of Health Sciences, Swinburne University of Technology, Victoria, Australia.,Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Victoria, Australia
| | - Gavin W Lambert
- Inversion Health Innovation Research Institute and School of Health Sciences, Swinburne University of Technology, Victoria, Australia.,Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Victoria, Australia
| | - Shu Wen Wen
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Connie H Y Wong
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
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8
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Ndieugnou Djangang N, Ramunno P, Izzi A, Garufi A, Menozzi M, Diaferia D, Peluso L, Prezioso C, Talamonti M, Njimi H, Schuind S, Vincent JL, Creteur J, Taccone FS, Gouvea Bogossian E. The Prognostic Role of Lactate Concentrations after Aneurysmal Subarachnoid Hemorrhage. Brain Sci 2020; 10:brainsci10121004. [PMID: 33348866 PMCID: PMC7766816 DOI: 10.3390/brainsci10121004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022] Open
Abstract
Blood lactate concentrations are often used to assess global tissue perfusion in critically ill patients; however, there are scarce data on lactate concentrations after subarachnoid hemorrhage (SAH). We aimed to assess the prognostic role of serial blood lactate measurements on hospital mortality and neurological outcomes at 3 months after SAH. We reviewed all SAH patients admitted to the intensive care unit from 2007 to 2019 and recorded the highest daily arterial lactate concentration for the first 6 days. Patients with no lactate concentration were excluded. Hyperlactatemia was defined as a blood lactate concentration >2.0 mmol/L. A total of 456 patients were included: 158 (35%) patients died in hospital and 209 (46%) had an unfavorable outcome (UO) at 3 months. The median highest lactate concentration was 2.7 (1.8–3.9) mmol/L. Non-survivors and patients with UO had significantly higher lactate concentrations compared to other patients. Hyperlactatemia increased the chance of dying (OR 4.19 (95% CI 2.38–7.39)) and of having UO in 3 months (OR 4.16 (95% CI 2.52–6.88)) after adjusting for confounding factors. Therefore, initial blood lactate concentrations have prognostic implications in patients with SAH; their role in conjunction with other prognostic indicators should be evaluated in prospective studies.
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Affiliation(s)
- Narcisse Ndieugnou Djangang
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Pamela Ramunno
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Antonio Izzi
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Alessandra Garufi
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Marco Menozzi
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Daniela Diaferia
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Lorenzo Peluso
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Chiara Prezioso
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Marta Talamonti
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Hassane Njimi
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Sophie Schuind
- Department of Neurosurgery, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium;
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Jacques Creteur
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Fabio Silvio Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
| | - Elisa Gouvea Bogossian
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Route de Lennik, 808 1070 Brussels, Belgium; (N.N.D.); (P.R.); (A.I.); (A.G.); (M.M.); (D.D.); (L.P.); (C.P.); (M.T.); (H.N.); (J.-L.V.); (J.C.); (F.S.T.)
- Correspondence:
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Acute platelet response to aneurysmal subarachnoid hemorrhage depends on severity and distribution of bleeding: an observational cohort study. Neurosurg Rev 2020; 44:2647-2658. [PMID: 33241455 DOI: 10.1007/s10143-020-01444-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/21/2020] [Accepted: 11/18/2020] [Indexed: 12/19/2022]
Abstract
Microthrombosis after aneurysmal subarachnoid hemorrhage (aSAH) is considered to initiate neuroinflammation, vessel remodeling, and blood-brain barrier leakage. We aimed to verify the hypothesis that the intensity of thrombogenicity immediately after aSAH depends on the amount and distribution of extravasated blood. This observational cohort study included 37 consecutive aSAH patients admitted no longer than 24 h after ictus. Volumes of subarachnoid and intraventricular hemorrhages as well as the Subarachnoid Hemorrhage Early Brain Edema Scale (SEBES) score were calculated in each case. Platelet system status was described by platelet count (PLT), mean platelet volume (MPV), MPV to PLT ratio, and platelet-large cell ratio (P-LCR). Median hemorrhage volume amounted to 11.4 ml (interquartile range 2.8-26.8 ml). Patients with more severe hemorrhage had lower PLT and higher MPV to PLT ratio (ρ = - 0.49, p < .002; ρ = 0.50, p < .002, respectively). PLT decreased by 2.80 G/l per 1 ml of hemorrhage volume (95% CL 1.30-4.30, p < .001). Further analysis revealed that intraventricular hemorrhage volume was associated with P-LCR and MPV (ρ = 0.34, p < .039; ρ = 0.33, p < .048, respectively), whereas SAH volume with PLT and MPV:PLT ratio (ρ = - 0.40, p < .013; ρ = 0.41, p < .013, respectively). The odds of unfavorable neurological outcome increased 3.95 times per 1 fl of MPV (95% CI 1.19-13.12, p < .025). MPV was independently correlated with SEBES (ρ = 0.44, p < .006). This study demonstrated that the extent and distribution of aneurysmal subarachnoid hemorrhage are related to different types of acute platelet response, which may be interpreted as local and systemic thrombogenicity. Increased mean platelet volume measured in the acute phase of aSAH may identify patients at risk for unfavorable neurological outcomes and may serve as a marker of early brain injury.
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10
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Sörbo A, Eiving I, Theodorsson E, Rydenhag B, Jonsdottir IH. Pre-traumatic conditions can influence cortisol levels before and after a brain injury. Acta Neurol Scand 2020; 141:342-350. [PMID: 31879940 DOI: 10.1111/ane.13212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/01/2019] [Accepted: 12/21/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Satisfactory anabolic reactions, including the activation of the hypothalamic-pituitary-adrenal (HPA) axis, are essential following severe traumatic brain injury (TBI) and aneurysmal subarachnoid hemorrhage (SAH). Many factors may influence this activation. This study aimed to investigate whether individuals who reported chronic diseases, psychosocial afflictions, or stressful events before a severe brain injury display a different pattern regarding cortisol levels retrospectively and up to three months compared with those who did not report stressful experiences. MATERIALS AND METHODS Fifty-five patients aged 16-68 years who were admitted to the neurointensive care unit (NICU) were included. Hair cortisol measurements offer a unique opportunity to monitor cortisol levels retrospectively and after the trauma. Hair strands were collected as soon as possible after admission to the NICU and every month until three months after the injury/insult. The participants/relatives were asked about stressful events, psychosocial afflictions and recent and chronic diseases. RESULTS The group who reported chronic diseases and/or stressful events before the brain injury had more than twice as high median hair cortisol levels before the brain injury compared with those who did not report stress, but the difference was not statistically significant (P = .12). Those who reported stress before the brain injury had statistically significantly lower hair cortisol values after the brain injury and they remained until three months after the injury. CONCLUSIONS Stressful events and/or chronic disease before brain injury might affect mobilization of adequate stress reactions following the trauma. However, the large variability in cortisol levels in these patients does not allow firm conclusions and more studies are needed.
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Affiliation(s)
- Ann Sörbo
- Department of Neurology and Rehabilitation Södra Älvsborg Hospital Borås Sweden
- Department of Neurology and Rehabilitation Uddevalla Hospital Uddevalla Sweden
- Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Ingrid Eiving
- Neurointensive Care Unit Department of Anesthesiology and Intensive Care Sahlgrenska University Hospital Gothenburg Sweden
| | - Elvar Theodorsson
- Department of Clinical Chemistry and Department of Clinical and Experimental Medicine Linköping University Linköping Sweden
| | - Bertil Rydenhag
- Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
- Department of Neurosurgery Sahlgrenska University Hospital Gothenburg Sweden
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11
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Krzyżewski RM, Kliś KM, Kwinta BM, Stachura K, Guzik TJ, Gąsowski J. High Leukocyte Count and Risk of Poor Outcome After Subarachnoid Hemorrhage: A Meta-Analysis. World Neurosurg 2020; 135:e541-e547. [DOI: 10.1016/j.wneu.2019.12.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 11/16/2022]
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12
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Hosmann A, Klenk S, Wang WT, Koren J, Sljivic S, Reinprecht A. Endogenous arterial blood pressure increase after aneurysmal subarachnoid hemorrhage. Clin Neurol Neurosurg 2019; 190:105639. [PMID: 31874423 DOI: 10.1016/j.clineuro.2019.105639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/10/2019] [Accepted: 12/14/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Spontaneous blood pressure rise is a frequently observed phenomenon following aneurysmal subarachnoid hemorrhage (SAH). Facing the risk of aneurysmal rebleeding and the occurrence of delayed cerebral ischemia it is unclear how to react to these endogenous-driven blood pressure changes, as their predictive value for clinical course and functional outcome is still unknown. PATIENTS AND METHODS Endogenous blood pressure characteristics within 21 days after SAH were retrospectively analyzed in 93 patients. Any use of vasopressors for active induction of hypertension marked the end of data collection. Mean arterial blood pressure (MAP) was related to the onset of cerebral vasospasm and patient characteristics (Hunt&Hess, age, pre-existing hypertension, antihypertensive therapy, sedation). Predictors for cerebral infarction and functional outcome were calculated using a logistic regression model. RESULTS A significant MAP increase was observed in all patients from day 3 to day 7. Patients developing cerebral vasospasm had an overall steeper increase of MAP during this period (11.1 ± 11.4 mmHg vs. 6.5 ± 8.9 mmHg, p = 0.04). MAP rise started already 3 days before detection of vasospasm. Lower MAP values were recorded in patients with poor Hunt&Hess grade, under sedation and thus in patients with poor outcome. MAP had no impact on the development of cerebral infarction. In univariate analysis MAP on day 5 (OR 0.95, 95 %-CI: 0.89-0.99), MAP on day 6 (OR 0.95, 95 %-CI: 0.91-1.00), Hunt&Hess grade (OR 1.72, 95 %-CI: 1.14-2.60), sedation (OR 17.04, 95 %-CI: 2.08-139.51) and stroke (OR 5.82, 95 %-CI: 1.63-20.82) were predictors for poor outcome. In multivariable analysis, only sedation (OR 13.72, 95 %-CI: 1.62-115.94) and ischemic stroke (OR 4.48, 95 %-CI: 1.16-17.31) remained significant. CONCLUSION Spontaneous MAP increase occured in all patients following SAH. It was highly influenced by clinical parameters, thereby limiting its prognostic value for functional outcome. However, a steep increase of MAP might be an early clinical marker to identify patients at risk for developing cerebral vasospasm.
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Affiliation(s)
- Arthur Hosmann
- Department of Neurosurgery, Medical University of Vienna, Austria
| | - Sarah Klenk
- Department of Neurosurgery, Medical University of Vienna, Austria
| | - Wei-Te Wang
- Department of Neurosurgery, Medical University of Vienna, Austria
| | - Johannes Koren
- Department of Neurology, General Hospital Hietzing with Neurological Center Rosenhügel, Vienna, Austria; Karl Landsteiner Institute for Clinical Epilepsy Research and Cognitive Neurology, Vienna, Austria
| | - Samir Sljivic
- Department of Anaesthesia, General Intensive Care Medicine and Pain Management, Medical University of Vienna, Austria
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13
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Saand AR, Yu F, Chen J, Chou SHY. Systemic inflammation in hemorrhagic strokes - A novel neurological sign and therapeutic target? J Cereb Blood Flow Metab 2019; 39:959-988. [PMID: 30961425 PMCID: PMC6547186 DOI: 10.1177/0271678x19841443] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Growing evidences suggest that stroke is a systemic disease affecting many organ systems beyond the brain. Stroke-related systemic inflammatory response and immune dysregulations may play an important role in brain injury, recovery, and stroke outcome. The two main phenomena in stroke-related peripheral immune dysregulations are systemic inflammation and post-stroke immunosuppression. There is emerging evidence suggesting that the spleen contracts following ischemic stroke, activates peripheral immune response and this may further potentiate brain injury. Whether similar brain-immune crosstalk occurs in hemorrhagic strokes such as intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH) is not established. In this review, we systematically examined animal and human evidence to date on peripheral immune responses associated with hemorrhagic strokes. Specifically, we reviewed the impact of clinical systemic inflammatory response syndrome (SIRS), inflammation- and immune-associated biomarkers, the brain-spleen interaction, and cellular mediators of peripheral immune responses to ICH and SAH including regulatory T cells (Tregs). While there is growing data suggesting that peripheral immune dysregulation following hemorrhagic strokes may be important in brain injury pathogenesis and outcome, details of this brain-immune system cross-talk remain insufficiently understood. This is an important unmet scientific need that may lead to novel therapeutic strategies in this highly morbid condition.
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Affiliation(s)
- Aisha R Saand
- 1 Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Fang Yu
- 2 Department of Neurology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jun Chen
- 2 Department of Neurology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sherry H-Y Chou
- 1 Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,2 Department of Neurology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,3 Department of Neurosurgery, School of Medicine, University of Pittsburgh, PA, USA
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Hall A, O'Kane R. The Management of Hypertension in Pre-Aneurysmal Treatment Subarachnoid Hemorrhage Patients. World Neurosurg 2019; 125:469-474. [PMID: 30825622 DOI: 10.1016/j.wneu.2019.02.041] [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] [Received: 10/27/2018] [Revised: 02/08/2019] [Accepted: 02/09/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Management of hypertension in subarachnoid hemorrhage patients within the preaneurysmal treatment period remains ambiguous, in part due to the lack of high-level, evidence-based guidelines. Despite this, current recommendations offer guidance regarding certain parameters (e.g., mean arterial pressure, systolic blood pressure). However, managing hypertension within this critical period is difficult because a fine balance must be achieved between lowering blood pressure enough to minimize the risk of rebleeding and preventing reduced cerebral perfusion and subsequent ischemic damage. Furthermore, the different causes of hypertension within the preaneurysmal treatment period are polyfactorial and include pathophysiologic responses, sympathetic nervous system activation, and iatrogenic from hyperdynamic therapy and vasopressors, which requires consideration for these patients to receive optimal management. Other factors including loss of autoregulation and concomitant conditions must also be considered when deciding whether to start antihypertensive therapy. METHODS We review the literature and provide a comprehensive update on management of hypertension within the preaneurysmal treatment period, which we hope stresses the need for better evidence-based guidelines that will in turn help manage this cohort. RESULTS Thorough review revealed no high-grade, evidence-based guidelines to manage these patients, which results in variation in clinical practice among different clinicians and institutions. Despite this, current recommendations seem reasonable until such guidelines are established. CONCLUSIONS It is clear that further, larger studies are warranted in order to clarify the effect of antihypertensive therapy on patient outcome and what the BP thresholds are, along with establishing the best treatment, for commencing antihypertensive therapy.
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Affiliation(s)
- Allan Hall
- Institute of Neurological Sciences, Department of Neurosurgery, Queen Elizabeth University Hospital, Glasgow, UK.
| | - Roddy O'Kane
- Institute of Neurological Sciences, Department of Neurosurgery, Queen Elizabeth University Hospital, Glasgow, UK
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15
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Cerebrospinal fluid lactate and neurological outcome after subarachnoid haemorrhage. J Clin Neurosci 2019; 60:63-67. [DOI: 10.1016/j.jocn.2018.10.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 10/05/2018] [Indexed: 12/23/2022]
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16
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Systemic Inflammatory Response Syndrome as Predictor of Poor Outcome in Nontraumatic Subarachnoid Hemorrhage Patients. Crit Care Med 2018; 46:e1152-e1159. [DOI: 10.1097/ccm.0000000000003429] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Interleukin-6 Levels in Cerebrospinal Fluid and Plasma in Patients with Severe Spontaneous Subarachnoid Hemorrhage. World Neurosurg 2018; 122:e612-e618. [PMID: 30814021 DOI: 10.1016/j.wneu.2018.10.113] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Inflammatory processes play a key role in the pathophysiology of subarachnoid hemorrhage (SAH). This study evaluated whether different temporal patterns of intrathecal and systemic inflammation could be identified in the acute phase after SAH. The intensity of the inflammation was also assessed in clinical subgroups. METHODS Cerebrospinal fluid (CSF) and blood samples were collected at days 1, 4, and 10 after ictus in 44 patients with severe SAH. Interleukin-6 (IL-6) was analyzed by a routine monoclonal antibody-based method. Median IL-6 values for each day were calculated. Day 4 IL-6 values were compared in dichotomized groups (age, sex, World Federation of Neurosurgical Societies [WFNS] grade, Fisher scale grade, outcome, vasospasm, central nervous system infection and systemic infections). RESULTS CSF IL-6 levels were significantly elevated from day 1 to days 4 and 10, whereas plasma IL-6 showed a different trend at lower levels. Median CSF IL-6 concentrations for days 1, 4, and 10 were 876.5, 3361, and 1567 ng/L, whereas plasma was 26, 27.5, and 15.9 ng/L, respectively. No significant differences in CSF concentrations were observed between the subgroups, with the most prominent one being in day 4 IL-6 in the WFNS subgroups (grades 1-3 vs. 4-5, 1158.5 vs. 5538 ng/L; P = 0.056). Patients with systemic infection had significantly higher plasma IL-6 concentrations than patients without infection (31 vs. 16.05 ng/L, respectively; P = 0.028). CONCLUSIONS Distinctly different inflammatory patterns could be seen intrathecally compared with the systemic circulation. In plasma, a significant difference in the intensity of the inflammation was seen in cases with systemic infection. No other subgroup showed statistically significant differences.
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Poblete RA, Cen SY, Zheng L, Emanuel BA. Serum Lactic Acid Following Aneurysmal Subarachnoid Hemorrhage Is a Marker of Disease Severity but Is Not Associated With Hospital Outcomes. Front Neurol 2018; 9:593. [PMID: 30083130 PMCID: PMC6064931 DOI: 10.3389/fneur.2018.00593] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/03/2018] [Indexed: 11/24/2022] Open
Abstract
Background: Following aneurysmal subarachnoid hemorrhage, peripherally-drawn lactic acid has been associated with poor outcomes; however, its clinical significance is unknown. We investigated admission factors and patient outcomes associated with serum lactic acid in this population. Methods: This was a retrospective observational study of 105 consecutive patients with serum lactate collected within 24 h of admission. Primary objectives were to determine the incidence of admission lactic acidemia, and factors positively and negatively associated with lactate levels. We also sought to determine if admission lactic acidemia was associated with patient outcomes, including vasospasm, delayed cerebral ischemia, mortality, and discharge disposition. Results: Admission serum lactic acid was elevated in 56 patients (53% of the cohort). Levels were positively associated with Hunt & Hess and modified Fisher grade, glucose, troponin I and white blood cell counts, and negatively associated with GCS and ventilator-free days. Admission lactate was not associated with the development of vasospasm or delayed cerebral ischemia. Patients with elevated lactic acid more often died during hospitalization, and less often were discharged home. After adjusting for other predictors of poor outcome, the adjusted odds of inpatient mortality (OR 0.97, 95% CI 0.79–1.20; p = 0.80) and discharge to home (OR 1.00, 95% CI 0.80–1.26; p = 0.97) was not associated with admission lactic acid. Conclusions: Early serum lactic acid elevation is common following aneurysmal subarachnoid hemorrhage and is associated with the clinical and radiographic grade of hemorrhage. Levels did not independently predict short-term outcomes when adjusted for established predictors of poor outcome. Further study is needed to determine the clinical significance of peripherally-drawn lactic acid in aneurysmal subarachnoid hemorrhage.
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Affiliation(s)
- Roy A Poblete
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Steven Yong Cen
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Ling Zheng
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Benjamin A Emanuel
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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Liu L, Suzuki H. The Role of Matricellular Proteins in Experimental Subarachnoid Hemorrhage-Induced Early Brain Injury. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-3-319-66679-2_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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20
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Llull L, Thiel S, Amaro S, Cervera Á, Planas AM, Chamorro Á. Ficolin-1 Levels in Patients Developing Vasospasm and Cerebral Ischemia After Spontaneous Subarachnoid Hemorrhage. Mol Neurobiol 2017; 54:6572-6580. [PMID: 27734336 DOI: 10.1007/s12035-016-0180-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 09/28/2016] [Indexed: 12/23/2022]
Abstract
Activation of the inflammatory generating complement system might play a pathogenic role in spontaneous subarachnoid hemorrhage (SAH). We studied whether plasma and cerebrospinal fluid (CSF) levels of complement proteins were associated with angiographic vasospasm and cerebral ischemic lesions after SAH. Ficolin-1 (M-ficolin), ficolin-3 (H-ficolin), mannose-binding lectin (MBL), MBL-associated serine protease 2 (MASP-2), MASP-3, and MAp44 were analyzed in plasma of 45 SAH patients at 24 h after bleeding. Additionally, ficolin-1 levels were measured in cerebrospinal fluid (CSF) samples obtained 24 h after bleeding in 19 patients with external ventricular drainage placement. Angiographic vasospasm was identified using transcranial Doppler or angio-CT and considered symptomatic when new focal deficits or ischemic lesions appeared in follow-up neuroimaging. Functional outcome was assessed using modified Rankin scale (mRS) at 90 days. Higher plasma ficolin-1 levels (ng/ml) at 24 h were associated with poor Hunt and Hess (HH) grade at admission (mean 1158 (SD 360) vs 1654 (871), p = 0.004) and were higher in patients developing angiographic vasospasm (1119.44 (374) vs 1514 (755), p = 0.025) and cerebral ischemia (1067 (325) vs 1610 (766), p = 0.003). In multivariate models adjusted for confounders, higher ficolin-1 remained associated with brain ischemic lesions (OR per 100 ng/ml 1.34, 95 %CI 1.04-1.73, p = 0.026) and vasospasm (OR per 100 ng/ml of increase 1.26, 95 %CI 1.02-1.56, p = 0.031). Patients with angiographic vasospasm and cerebral ischemic lesions had non-significantly lower ficolin-1 concentration in the CSF. Plasma ficolin-1 emerged as a marker of clinical severity and brain ischemia after SAH. Larger studies will be required to establish the therapeutic implications of this finding.
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Affiliation(s)
- Laura Llull
- Neurology Service, Hospital Clinic, Comprehensive Stroke Center, Villarroel 170, 08036, Barcelona, Spain.
| | - Steffen Thiel
- Department of Biomedicine, Health Aarhus University, Aarhus, Denmark
| | - Sergio Amaro
- Neurology Service, Hospital Clinic, Comprehensive Stroke Center, Villarroel 170, 08036, Barcelona, Spain
| | - Álvaro Cervera
- Neurosciences Department, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - Anna M Planas
- Department of Brain Ischemia and Neurodegeneration IIBB-CSIC, IDIBAPS, Barcelona, Spain
| | - Ángel Chamorro
- Neurology Service, Hospital Clinic, Comprehensive Stroke Center, Villarroel 170, 08036, Barcelona, Spain
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Efficacy of Endovascular Radiofrequency Ablation for Thromboangiitis Obliterans (Buerger's Disease). Ann Vasc Surg 2017; 42:78-83. [DOI: 10.1016/j.avsg.2016.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 10/31/2016] [Accepted: 11/09/2016] [Indexed: 01/04/2023]
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Catecholamines and Paroxysmal Sympathetic Hyperactivity after Traumatic Brain Injury. J Neurotrauma 2017; 34:109-114. [DOI: 10.1089/neu.2015.4364] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Chang MM, Raval RN, Southerland JJ, Adewumi DA, Bahjri KA, Samuel RK, Woods RO, Ajayi OO, Lee BS, Hsu FPK, Applegate Ii RL, Dorotta IR. Beta Blockade and Clinical Outcomes in Aneurysmal Subarachnoid Hemorrhage. Open Neurol J 2016; 10:155-163. [PMID: 28217182 PMCID: PMC5278558 DOI: 10.2174/1874205x01610010155] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 09/02/2016] [Accepted: 10/27/2016] [Indexed: 12/01/2022] Open
Abstract
Background: Aneurysmal subarachnoid hemorrhages are frequently complicated by hypertension and neurogenic myocardial stunning. Beta blockers may be used for management of these complications. We sought to investigate sympathetic nervous system modulation by beta blockers and their effect on radiographic vasospasm, delayed cerebral infarction, discharge destination and death. Methods: Retrospective chart review of 218 adults admitted to the ICU between 8/2004 and 9/2010 was performed. Groups were identified relevant to beta blockade: 77 were never beta blocked (No/No), 123 received post-admission beta blockers (No/Yes), and 18 were continued on their home beta blockers (Yes/Yes). Records were analyzed for baseline characteristics and the development of vasospasm, delayed cerebral infarction, discharge destination and death, expressed as adjusted odds ratio. Results: Of the 218 patients 145 patients developed vasospasm, 47 consequently infarcted, and 53 died or required care in a long-term facility. When compared to No/No patients, No/Yes patients had significantly increased vasospasm (OR 2.11 (1.06-4.16)). However, these patients also had significantly fewer deaths or need for long term care (OR 0.17 (0.05-0.64)), with decreased tendency for infarcts (OR 0.70 (0.32-1.55)). When compared to No/No patients, Yes/Yes patients demonstrated a trend toward increased vasospasm (OR 1.61 (0.50-5.29)) that led to infarction (OR 1.51 (0.44-5.13)), but with decreased mortality or need for long term care in a facility (OR 0.13 (0.01-1.30)). Conclusion: Post-admission beta blockade in aneurysmal subarachnoid hemorrhage patients was associated with increased incidence of vasospasm. However, despite the increased occurrence of vasospasm, beta blockers were associated with improved discharge characteristics and fewer deaths.
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Affiliation(s)
- Melody M Chang
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
| | - Ronak N Raval
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
| | | | - Dare A Adewumi
- Department of Neurosurgery, The Greater Houston Neurosurgery Center, TX, USA
| | | | - Rajeev K Samuel
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
| | - Rafeek O Woods
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
| | - Olaide O Ajayi
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
| | - Bryan S Lee
- Department of Neurosurgery, Cleveland Clinic Foundation, Ohio, USA
| | - Frank P K Hsu
- Department of Neurosurgery, University of California, Irvine, USA
| | | | - Ihab R Dorotta
- Department of Anesthesiology, Loma Linda University School of Medicine, CA, USA
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Nyberg C, Karlsson T, Hillered L, Stridsberg M, Ronne Engström E. The Early Endocrine Stress Response in Experimental Subarachnoid Hemorrhage. PLoS One 2016; 11:e0151457. [PMID: 27007694 PMCID: PMC4805209 DOI: 10.1371/journal.pone.0151457] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/28/2016] [Indexed: 12/12/2022] Open
Abstract
Introduction In patients with severe illness, such as aneurysmal subarachnoid hemorrhage (SAH), a physiologic stress response is triggered. This includes activation of the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system. The aim of this study was to investigate the very early responses of these systems. Methods A porcine animal model of aneurysmal SAH was used. In this model, blood is injected slowly to the basal cisterns above the anterior skull base until the cerebral perfusion pressure is 0 mm Hg. Sampling was done from blood and urine at -10, +15, +75 and +135 minutes from time of induction of SAH. Analyses of adrenocorticotropic hormone (ACTH), cortisol, aldosterone, catecholamines and chromogranin-A were performed. Results Plasma ACTH, serum cortisol and plasma aldosterone increased in the samples following induction of SAH, and started to decline after 75 minutes. Urine cortisol also increased after SAH. Urine catecholamines and their metabolites were found to increase after SAH. Many samples were however below detection level, not allowing for statistical analysis. Plasma chromogranin-A peaked at 15 minutes after SAH, and thereafter decreased. Conclusions The endocrine stress response after aneurysmal SAH was found to start within 15 minutes in the HPA axis with early peak values of ACTH, cortisol and aldosterone. The fact that the concentrations of the HPA axis hormones decreased 135 minutes after SAH may suggest that a similar pattern exists in SAH patients, thus making it difficult to catch these early peak values. There were also indications of early activation of the sympathetic nervous system, but the small number of valid samples made interpretation difficult.
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Affiliation(s)
- Christoffer Nyberg
- Department of Neuroscience, Section of Neurosurgery, Uppsala University, Uppsala, Sweden
- * E-mail:
| | - Torbjörn Karlsson
- Department of Surgical Sciences, Section of Anesthesiology and Intensive care, Uppsala University, Uppsala, Sweden
| | - Lars Hillered
- Department of Neuroscience, Section of Neurosurgery, Uppsala University, Uppsala, Sweden
| | - Mats Stridsberg
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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Lindgren C, Söderberg S, Koskinen LOD, Hultin M, Edvardsson L, Naredi S. Long-term subarachnoid haemorrhage survivors still die due to cerebrovascular causes. Acta Neurol Scand 2015; 132:410-6. [PMID: 25864536 DOI: 10.1111/ane.12410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Subarachnoid haemorrhage (SAH) is associated with sympathetic nervous activation and inflammation. SAH could therefore theoretically be a risk factor for development of cardiovascular disease. The aim of this study was to investigate whether long-term (≥1 year) SAH survivors had an increased risk of death due to cardiovascular causes. MATERIAL & METHODS SAH patients ≥18 years treated at Umeå University Hospital between 1986 and 2006 were eligible for inclusion. Deceased patients were identified in the Swedish population register. Death certificates from long-term SAH survivors and causes of death in the general population were obtained from the National Board of Health and Welfare, Sweden. The prevalence of comorbidities at the time of SAH was compared with the distribution of cardiovascular risk factors in the northern Sweden MONICA (Multinational Monitoring of Trends and Determinants in Cardiovascular Disease) health survey. Analyses were stratified for age and sex. RESULTS In the SAH patients, the median year of SAH was 1992 and the median year of death was 2001. The MONICA survey in 1994 and the distribution of deaths in the general population in 2001 were used for comparison. Long-term SAH survivors had, compared to the general population, a significantly increased risk for death due to cerebrovascular disease (P < 0.0001), but not for death due to cardiovascular disease. Hypertension was more common in SAH patients compared to survey participants (P < 0.01). CONCLUSION Cerebrovascular causes of death were significantly more common in long-term survivors after SAH compared to the general population.
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Affiliation(s)
- C. Lindgren
- Department of Surgical and Perioperative Sciences; Anaesthesiology and Intensive Care; Umeå University; Umeå Sweden
| | - S. Söderberg
- Department of Public Health and Clinical Medicine; Medicine; Umeå University; Umeå Sweden
| | - L.-O. D. Koskinen
- Department of Pharmacology and Clinical Neuroscience; Neurosurgery; Umeå University; Umeå Sweden
| | - M. Hultin
- Department of Surgical and Perioperative Sciences; Anaesthesiology and Intensive Care; Umeå University; Umeå Sweden
| | - L. Edvardsson
- Department of Public Health and Clinical Medicine; Medicine; Umeå University; Umeå Sweden
| | - S. Naredi
- Department of Anaesthesiology and Intensive Care; Institute of Clinical Sciences; Sahlgrenska Academy at the University of Gothenburg; Gothenburg Sweden
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Moussouttas M, Mearns E, Walters A, DeCaro M. Plasma Catecholamine Profile of Subarachnoid Hemorrhage Patients with Neurogenic Cardiomyopathy. Cerebrovasc Dis Extra 2015; 5:57-67. [PMID: 26120322 PMCID: PMC4478315 DOI: 10.1159/000431155] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 04/24/2015] [Indexed: 01/10/2023] Open
Abstract
Purpose To investigate the connection between sympathetic function and neurogenic cardiomyopathy (NC), and to determine whether NC is mediated primarily by circulating adrenal epinephrine (EPI) or neuronally transmitted norepinephrine (NE), following subarachnoid hemorrhage (SAH). Methods This is a prospective observational investigation of consecutive severe-grade SAH patients. All participants had transthoracic echocardiography and serological assays for catecholamine levels – dopamine (DA), NE and EPI – within 48 h of hemorrhage onset. Clinical and serological independent predictors of NC were determined using multivariate logistic regression analyses, and the accuracy of predictors was assessed by receiver operating characteristic (ROC) curves. Multivariate linear regression analyses were used to evaluate correlations among the catecholamines. Results The investigation included a total of 94 subjects: the mean age was 55 years, 81% were female and 57% were Caucasian. NC was identified in approximately 10% (9/94) of cases. Univariate analyses revealed associations between NC and worse clinical severity (p = 0.019), plasma DA (p = 0.018) and NE levels (p = 0.024). Plasma NE correlated with DA levels (ρ = 0.206, p = 0.046) and EPI levels (ρ = 0.392, p < 0.001), but was predicted only by plasma EPI in bivariate [parameter estimate (PE) = 1.95, p < 0.001] and multivariate (PE = 1.89, p < 0.001) linear regression models. Multivariate logistic regression analyses consistently demonstrated the predictive value of clinical grade for NC (p < 0.05 for all analyses) except in models incorporating plasma NE, where NC was independently predicted by NE level (OR 1.25, 95% CI 1.01-1.55) over clinical grade (OR 4.19, 95% CI 0.874-20.1). ROC curves similarly revealed the greater accuracy of plasma NE [area under the curve (AUC) 0.727, 95% CI 0.56-0.90, p = 0.02] over clinical grade (AUC 0.704, 95% CI 0.55-0.86, p = 0.05) for identifying the presence or absence of NC. Conclusions Following SAH, the development of NC is primarily related to elevated plasma NE levels. Findings implicate a predominantly neurogenic process mediated by neuronal NE (and not adrenal EPI), but cannot exclude synergy between the catecholamines.
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Affiliation(s)
- Michael Moussouttas
- Neurocritical Care Division, Institute for Neurosciences, Capital Regional Medical Center, Trenton, N.J., USA
| | - Elizabeth Mearns
- Pharmacy Department, Thomas Jefferson Medical Center, Philadelphia, Pa., USA
| | - Arthur Walters
- Department of Neurology, Vanderbilt Medical Center, Nashville, Tenn., USA
| | - Matthew DeCaro
- Division of Cardiology, Department of Medicine, Thomas Jefferson Medical Center, Philadelphia, Pa., USA
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Schmidt JM, Crimmins M, Lantigua H, Fernandez A, Zammit C, Falo C, Agarwal S, Claassen J, Mayer SA. Prolonged elevated heart rate is a risk factor for adverse cardiac events and poor outcome after subarachnoid hemorrhage. Neurocrit Care 2015; 20:390-8. [PMID: 24043479 DOI: 10.1007/s12028-013-9909-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Sympathetic nervous system hyperactivity is common after subarachnoid hemorrhage (SAH). We sought to determine whether uncontrolled prolonged heart rate elevation is a risk factor for adverse cardiopulmonary events and poor outcome after SAH. METHODS We prospectively studied 447 SAH patients between March 2006 and April 2012. Prior studies define prolonged elevated heart rate (PEHR) as heart rate >95 beats/min for >12 h. Major adverse cardiopulmonary events were documented according to the predefined criteria. Global outcome at 3 months was assessed with the modified Rankin Scale (mRS). RESULTS 175 (39 %) patients experienced PEHR. Nonwhite race/ethnicity, admission Hunt-Hess grade ≥4, elevated APACHE-2 physiological subscore, and modified Fisher score were significant admission predictors of PEHR, whereas documented pre-hospital beta-blocker use was protective. After controlling for admission Hunt-Hess grade, Cox regression using time-lagged covariates revealed that PEHR onset in the previous 48 h was associated with an increased hazard for delayed cerebral ischemia, myocardial injury, and pulmonary edema. PEHR was associated with 3-month poor outcome (mRS 4-6) after controlling for known predictors. CONCLUSIONS PEHR is associated with major adverse cardiopulmonary events and poor outcome after SAH. Further study is warranted to determine if early sympatholytic therapy targeted at sustained heart rate control can improve outcome after SAH.
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Affiliation(s)
- J Michael Schmidt
- Department of Neurology, Columbia University Medical Center, 177 Fort Washington Avenue, Milstein Hospital, Suite 8-300, New York, NY, 10032, USA,
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Egea-Guerrero J, Muñoz-Sánchez M, Murillo-Cabezas F. Inmunodepresión tras la hemorragia subaracnoidea espontánea. Med Intensiva 2015; 39:62-3. [DOI: 10.1016/j.medin.2013.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 12/18/2013] [Indexed: 11/28/2022]
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Zanier ER, Zangari R, Munthe-Fog L, Hein E, Zoerle T, Conte V, Orsini F, Tettamanti M, Stocchetti N, Garred P, De Simoni MG. Ficolin-3-mediated lectin complement pathway activation in patients with subarachnoid hemorrhage. Neurology 2014; 82:126-34. [PMID: 24336142 DOI: 10.1212/wnl.0000000000000020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES To assess the involvement of ficolin-3, the main initiator of the lectin complement pathway (LCP), in subarachnoid hemorrhage (SAH) pathology and outcome. METHODS In this preliminary exploratory study, plasma concentration of ficolin-3 and of ficolin-3-mediated functional LCP activity was measured, along with that of other LCP initiators (mannose-binding lectin, ficolin-2, and ficolin-1), C3 activation products, and soluble C5b-9 terminal complex, in a prospective cohort of 39 patients with SAH and 20 healthy controls. The following parameters were recorded: SAH severity, assessed using the World Federation of Neurosurgical Societies grading scale; vasospasm, defined as neuro-worsening with angiographic confirmation of vessel narrowing; cerebral ischemia, defined as hypodense lesion on CT scan performed before discharge; and 6-month outcome, assessed using the Glasgow Outcome Scale. RESULTS In patients, no changes were detected for ficolin-3 compared with controls. Notably, however, ficolin-3-mediated functional LCP activity was reduced. Low levels of plasma ficolin-3 and ficolin-3-mediated functional LCP activity were related to SAH severity, vasospasm, and cerebral ischemia. Moreover, ficolin-3 functional LCP activity was decreased in patients with unfavorable outcome. CONCLUSION Our data provide evidence that LCP is activated after SAH and that the actual plasma concentrations of ficolin-3 reflect the severity of brain injury as evaluated by clinical and structural parameters. These results support the idea that ficolin-3-mediated functional LCP activity may be targeted to control injury progression in SAH.
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Affiliation(s)
- Elisa R Zanier
- From the IRCCS-Istituto di Ricerche Farmacologiche Mario Negri (E.R.Z., R.Z., F.O., M.T., M.-G.D.S.), Department of Neuroscience, Milan; Department of Physiopathology and Transplant, Milan University and Neuro ICU (R.Z., T.Z., V.C., N.S.), Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy; and Laboratory of Molecular Medicine (L.M.-F., E.H., P.G.), Department of Clinical Immunology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Denmark
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Kooijman E, Nijboer CH, van Velthoven CTJ, Kavelaars A, Kesecioglu J, Heijnen CJ. The rodent endovascular puncture model of subarachnoid hemorrhage: mechanisms of brain damage and therapeutic strategies. J Neuroinflammation 2014; 11:2. [PMID: 24386932 PMCID: PMC3892045 DOI: 10.1186/1742-2094-11-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 12/17/2013] [Indexed: 01/05/2023] Open
Abstract
Subarachnoid hemorrhage (SAH) represents a considerable health problem. To date, limited therapeutic options are available. In order to develop effective therapeutic strategies for SAH, the mechanisms involved in SAH brain damage should be fully explored. Here we review the mechanisms of SAH brain damage induced by the experimental endovascular puncture model. We have included a description of similarities and distinctions between experimental SAH in animals and human SAH pathology. Moreover, several novel treatment options to diminish SAH brain damage are discussed.SAH is accompanied by cerebral inflammation as demonstrated by an influx of inflammatory cells into the cerebral parenchyma, upregulation of inflammatory transcriptional pathways and increased expression of cytokines and chemokines. Additionally, various cell death pathways including cerebral apoptosis, necrosis, necroptosis and autophagy are involved in neuronal damage caused by SAH.Treatment strategies aiming at inhibition of inflammatory or cell death pathways demonstrate the importance of these mechanisms for survival after experimental SAH. Moreover, neuroregenerative therapies using stem cells are discussed as a possible strategy to repair the brain after SAH since this therapy may extend the window of treatment considerably. We propose the endovascular puncture model as a suitable animal model which resembles the human pathology of SAH and which could be applied to investigate novel therapeutic therapies to combat this debilitating insult.
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Affiliation(s)
- Elke Kooijman
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cora H Nijboer
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cindy TJ van Velthoven
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Annemieke Kavelaars
- Division of Internal Medicine, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jozef Kesecioglu
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cobi J Heijnen
- Division of Internal Medicine, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Muroi C, Hugelshofer M, Seule M, Tastan I, Fujioka M, Mishima K, Keller E. Correlation among systemic inflammatory parameter, occurrence of delayed neurological deficits, and outcome after aneurysmal subarachnoid hemorrhage. Neurosurgery 2013. [PMID: 23208059 DOI: 10.1227/neu.0b013e31828048ce] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The role and impact of systemic inflammatory response after aneurysmal subarachnoid hemorrhage remain to be elucidated. OBJECTIVE To assess the time course and correlation of systemic inflammatory parameters with outcome and the occurrence of delayed ischemic neurological deficits (DINDs) after subarachnoid hemorrhage. METHODS Besides the baseline characteristics, daily interleukin-6 (IL-6), procalcitonin, C-reactive protein levels, and leukocyte counts were prospectively measured until day 14 after subarachnoid hemorrhage. Occurrence of infectious complications and application of therapeutic hypothermia were assessed as confounding factors. The primary end point was outcome after 3 months, assessed by Glasgow outcome scale; the secondary end point was the occurrence of DINDs. RESULTS During a 3-year period, a total of 138 patients were included. All inflammatory parameters measured were higher in patients with unfavorable outcome (Glasgow outcome scale score, 1-3). After adjustment for confounding factors, elevated IL-6 and leukocyte counts remained significant risk factors for unfavorable outcome. The odds ratio for log IL-6 was 4.07 (95% confidence interval, 1.18 to 14.03; P = .03) and for leukocyte counts was 1.24 (95% confidence interval, 1.06-1.46, P = .008). The analysis of the time course established that IL-6 was the only significantly elevated parameter in the early phase in patients with unfavorable outcome. Higher IL-6 levels in the early phase (days 3-7) were associated with the occurrence of DINDs. The adjusted odds ratio for log IL-6 was 4.03 (95% confidence interval, 1.21-13.40; P = .02). CONCLUSION Higher IL-6 levels are associated with worse clinical outcome and the occurrence of DINDs. Because IL-6 levels were significantly elevated in the early phase, they might be a useful parameter to monitor.
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Affiliation(s)
- Carl Muroi
- Neurocritical Care Unit, Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland.
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Khan SA, Adogwa O, Gan TJ, Null UT, Verla T, Gokhale S, White WD, Britz GW, Zomorodi AR, James ML, McDonagh DL. Effect of 6% hydroxyethyl starch 130/0.4 in 0.9% sodium chloride (Voluven®) on complications after subarachnoid hemorrhage: a retrospective analysis. SPRINGERPLUS 2013; 2:314. [PMID: 23888282 PMCID: PMC3717154 DOI: 10.1186/2193-1801-2-314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 07/08/2013] [Indexed: 12/29/2022]
Abstract
Background 6% Hydroxyethyl Starch 130/0.4 in 0.9% Sodium Chloride (Voluven®; 6% HES 130/0.4) is a colloid often used for fluid resuscitation in patients with subarachnoid hemorrhage (SAH), despite a lack of safety data for this use. The purpose of our study was to evaluate the effect of 6% HES 130/0.4 on major complications associated with SAH. Methods Medical records of all patients presenting between May 2010 and September 2012 with aneurysmal SAH were analyzed. Patients were divided in two groups based on the administration of 6% HES 130/0.4; HES group (n=57) and Non-HES group (n=72). The primary outcome included a composite of three major complications associated with SAH: Delayed Cerebral Ischemia (DCI), Hydrocephalus (HCP) requiring cerebrospinal fluid (CSF) shunting, and Rebleeding. Results The study groups were similar with respect to most characteristics except the incidences of hypertension, ischemic heart disease, Fisher grade and lowest hemoglobin during stay. The odds of developing the primary composite outcome was higher in the HES group [OR= 3.1(1.30-7.36), p=0.01]. The patients in the HES group had a significantly longer median duration of hospital (19 vs 14 days) and Neurointensive Care Unit stay (14 vs 10 days) compared to the Non HES group. Conclusion We observed increased complications after SAH with 6% HES 130/0.4 (Voluven®) administration. An adequately powered prospective randomized controlled trial into the safety of 6% HES 130/0.4 in this patient population is warranted. Electronic supplementary material The online version of this article (doi:10.1186/2193-1801-2-314) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shariq A Khan
- Department of Anesthesiology, Duke University Medical Centre, Durham, NC USA ; Department of Anesthesiology, Singapore General Hospital, Singapore, Singapore
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Choi HA, Jeon SB, Samuel S, Allison T, Lee K. Paroxysmal Sympathetic Hyperactivity After Acute Brain Injury. Curr Neurol Neurosci Rep 2013; 13:370. [DOI: 10.1007/s11910-013-0370-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Cerebral vasospasm (CV) is a major source of morbidity and mortality in aneurysmal subarachnoid hemorrhage (aSAH). It is thought that an inflammatory cascade initiated by extravasated blood products precipitates CV, disrupting vascular smooth muscle cell function of major cerebral arteries, leading to vasoconstriction. Mechanisms of CV and modes of therapy are an active area of research. Understanding the genetic basis of CV holds promise for the recognition and treatment for this devastating neurovascular event. In our review, we summarize the most recent research involving key areas within the genetics and vasospasm discussion: (1) Prognostic role of genetics—risk stratification based on gene sequencing, biomarkers, and polymorphisms; (2) Signaling pathways—pinpointing key inflammatory molecules responsible for downstream cellular signaling and altering these mediators to provide therapeutic benefit; and (3) Gene therapy and gene delivery—using viral vectors or novel protein delivery methods to overexpress protective genes in the vasospasm cascade.
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McMahon CJ, Hopkins S, Vail A, King AT, Smith D, Illingworth KJ, Clark S, Rothwell NJ, Tyrrell PJ. Inflammation as a predictor for delayed cerebral ischemia after aneurysmal subarachnoid haemorrhage. J Neurointerv Surg 2012; 5:512-7. [PMID: 22952245 PMCID: PMC3812893 DOI: 10.1136/neurintsurg-2012-010386] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND The mechanism of development of delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (SAH) is poorly understood. Inflammatory processes are implicated in the development of ischemic stroke and may also predispose to the development of DCI following SAH. The objective of this study was to test whether concentrations of circulating inflammatory markers (C-reactive protein (CRP), interleukin-6 (IL-6) and interleukin 1 receptor antagonist (IL-1Ra)) were predictive for DCI following SAH. Secondary analyses considered white cell count (WCC) and erythrocyte sedimentation rate (ESR). METHODS This was a single-center case-control study nested within a prospective cohort. Plasma inflammatory markers were measured in patients up to 15 days after SAH (initial, peak, average, final and rate of change to final). Cases were defined as those developing DCI. Inflammatory markers were compared between cases and randomly selected matched controls. RESULTS Among the 179 participants there were 46 cases of DCI (26%). In primary analyses the rate of change of IL-6 was associated with DCI (OR 2.3 (95% CI 1.1 to 5.0); p=0.03). The final value and rate of change of WCC were associated with DCI (OR 1.2 (95% CI 1.0 to 1.3) and OR 1.3 (95% CI 1.0 to 1.6), respectively). High values of ESR were associated with DCI (OR 2.4 (95% CI 1.3 to 4.6) initial; OR 2.3 (95% CI 1.3 to 4.2) average; OR 2.1 (95% CI 1.1 to 3.9) peak; and OR 2.0 (95% CI 1.2 to 3.3) final value). CONCLUSIONS Leucocytosis and change in IL-6 prior to DCI reflect impending cerebral ischemia. The time-independent association of ESR with DCI after SAH may identify this as a risk factor. These data suggest that systemic inflammatory mechanisms may increase the susceptibility to the development of DCI after SAH.
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Affiliation(s)
- Catherine J McMahon
- Brain Injury Research Group, University of Manchester, Greater Manchester, UK
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Abstract
Disruption of the hypothalamic-pituitary-adrenal axes may occur after aneurysmal subarachnoid hemorrhage, resulting in hypopituitarism. An electronic literature search was conducted to identify articles with English-language abstracts published between 1980 and March 2011, which addressed hypothalamic-pituitary-adrenal axis insufficiency and hormone replacement. A total of 18 observational and prospective, randomized studies were selected for this review. Limited data are available, evaluating pituitary effects during the acute stage after subarachnoid hemorrhage, with inconsistent results being reported. Overall, after acute subarachnoid hemorrhage, cortisol levels may initially be supranormal, decreasing toward normal levels over time. During the months to years after subarachnoid hemorrhage, pituitary deficiency may occur in one out of three patients. Limited data suggest modest outcome benefits with fludrocortisone and no benefit or harm from corticosteroids.
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Affiliation(s)
- Paul Vespa
- Division of Neurosurgery, David Geffen School of Medicine at UCLA, University of California, Room 6236A Ronald Reagan UCLA Medical Center, 750 Westwood Blvd, Los Angeles, CA 90095, USA.
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Abstract
Disruption of the hypothalamic-pituitary-adrenal axis may occur after aneurysmal subarachnoid hemorrhage, resulting in hypopituitarism. An electronic literature search was conducted to identify articles with English-language abstracts published between 1980 and March 2011 that addressed hypothalamic-pituitary-adrenal axis insufficiency and hormone replacement. A total of 18 observational and prospective, randomized studies were selected for this review. Limited data are available evaluating pituitary effects during the acute stage after subarachnoid hemorrhage, with inconsistent results reported. Overall, acutely after subarachnoid hemorrhage, cortisol levels may initially be supranormal, decreasing toward normal levels over time. During the months to years after subarachnoid hemorrhage, pituitary deficiency may occur in up to one in three patients. Limited data suggest modest outcome benefits with fludrocortisone and no benefit or harm from corticosteroids.
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Affiliation(s)
- P Vespa
- Department of Neurosurgery, University of California at Los Angeles, Los Angeles, CA, USA.
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Muroi C, Bellut D, Coluccia D, Mink S, Fujioka M, Keller E. Systemic interleukin-6 concentrations in patients with perimesencephalic non-aneurysmal subarachnoid hemorrhage. J Clin Neurosci 2011; 18:1626-9. [DOI: 10.1016/j.jocn.2011.03.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2010] [Revised: 03/17/2011] [Accepted: 03/21/2011] [Indexed: 11/16/2022]
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Shin IY, Joo HM, Chung YG, Kim MS, Park JW, Ahn RS. Abnormal diurnal pattern of cortisol secretion in patients after aneurysmal subarachnoid hemorrhage. Stress 2011; 14:156-65. [PMID: 21034298 DOI: 10.3109/10253890.2010.522630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Substantial evidence suggests that impairment of the hypothalamus?pituitary system can occur following an aneurysmal subarachnoid hemorrhage (aSAH). Given that the diurnal cortisol rhythm is primarily controlled by the hypothalamus?pituitary system, this study examined whether changes in diurnal cortisol rhythm occurred after aSAH. Cortisol concentrations were measured in the saliva samples collected from patients after aSAH and other types of cerebral hemorrhage (non-aSAH) in the post-awakening period and at night (21:00?h), and the cortisol awakening response (CAR) and diurnal cortisol decline were determined. The area under the cortisol curve from immediately after to 45?min after awakening (CARauc) in the aSAH patient group was comparable to that in the non-aSAH or healthy control groups. However, an obvious cortisol peak was not found after the awakening period, and the morning/nighttime cortisol ratio in the aSAH patient group was significantly lower than that in other examined groups due to higher nighttime cortisol concentrations. In aSAH patients, the CARauc and nighttime cortisol concentrations were negatively correlated with the Fisher CT grade. These results indicate that the diurnal cortisol rhythm is not regulated normally after aSAH, and cortisol secretory activity decreases as the volume of subarachnoid bleeding increases. Our findings will be helpful to understand altered hypothalamus?pituitary?adrenal axis function after aSAH.
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Affiliation(s)
- Il Y Shin
- Department of Neurosurgery, Anam Hospital, Korea University, Seoul, Republic of Korea
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Muroi C, Mink S, Seule M, Bellut D, Fandino J, Keller E. Monitoring of the inflammatory response after aneurysmal subarachnoid haemorrhage in the clinical setting: review of literature and report of preliminary clinical experience. ACTA NEUROCHIRURGICA. SUPPLEMENT 2011; 110:191-6. [PMID: 21116938 DOI: 10.1007/978-3-7091-0353-1_33] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
BACKGROUND Clinical and experimental studies showed a marked inflammatory response in aneurysmal subarachnoid haemorrhage (SAH), and it has been proposed to play a key role in the development of cerebral vasospasm (CVS). Inflammatory response and occurrence of CVS may represent a common pathogenic pathway allowing point of care diagnostics of CVS. Therefore, monitoring of the inflammatory response might be useful in the daily clinical setting of an ICU. The aim of the current report is to give a summary about factors contributing to the complex pathophysiology of inflammatory response in SAH and to discuss possible monitoring modalities. METHODS Review and analysis of the existing literature and definition of own study protocols. RESULTS In cerebrospinal fluid, interleukin (IL)-6 has been found to be significantly higher in patients with CVS during the peri-vasospasm period. While systemic inflammatory response syndrome, high C-reactive protein levels and leukocyte counts has been linked with the occurrence of CVS, less has been reported about cytokines levels in the jugular bulb of the internal jugular vein and in the peripheral blood. Preliminary evaluation of own data suggests, that IL-6 values in the peripheral blood and the arterio-jugular differences of IL-6 are increased with the inflammatory response after SAH. CONCLUSION Monitoring of the inflammatory response, in particular IL-6, might be a useful tool for the daily clinical management of patients with SAH and CVS.
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Affiliation(s)
- C Muroi
- Neurocritical Care Unit, University Hospital Zurich, Zurich, Switzerland.
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Al-Tamimi YZ, Orsi NM, Quinn AC, Homer-Vanniasinkam S, Ross SA. A review of delayed ischemic neurologic deficit following aneurysmal subarachnoid hemorrhage: historical overview, current treatment, and pathophysiology. World Neurosurg 2010; 73:654-67. [PMID: 20934153 DOI: 10.1016/j.wneu.2010.02.005] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 01/30/2010] [Indexed: 01/10/2023]
Abstract
Delayed ischemic neurologic deficit (DIND) is a serious and poorly understood complication of aneurysmal subarachnoid hemorrhage. Although advances in treatment have improved prognosis for these patients, long-term clinical outcomes remain disappointing. Historically, angiographic vasospasm was thought to result in a DIND, although an increasing body of evidence suggests that this is an oversimplification, because interventions that have effectively targeted angiographic vasospasm have not improved outcome. Consequently, the relationship between angiographic vasospasm and neurologic outcome may be associative rather than causative. Although our understanding of the underlying molecular processes and pathophysiology is improving, responsible mediators or pathways have yet to be identified. The aim of this review is to summarize the key historical events that have helped shape our understanding of the pathophysiology of this phenomenon (microcirculation, autoregulation, microthrombosis, inflammation, apoptosis, spreading depolarization, oxidative stress) and to present the evidence underlying current treatment strategies (hemodynamic therapy, oral nimodipine, endovascular therapy, statins, cerebrospinal fluid drainage, thrombolysis, magnesium) and the translational and clinical research investigating DIND.
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Affiliation(s)
- Yahia Z Al-Tamimi
- Department of Neurosurgery, Leeds General Infirmary, Leeds, United Kingdom.
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Effects of a Short-acting β1 Receptor Antagonist Landiolol on Hemodynamics and Tissue Injury Markers in Patients With Subarachnoid Hemorrhage Undergoing Intracranial Aneurysm Surgery. J Neurosurg Anesthesiol 2010; 22:230-9. [DOI: 10.1097/ana.0b013e3181d0c2e4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Protective effects of recombinant osteopontin on early brain injury after subarachnoid hemorrhage in rats. Crit Care Med 2010; 38:612-8. [PMID: 19851092 DOI: 10.1097/ccm.0b013e3181c027ae] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Accumulated evidence suggests that the primary cause of poor outcome after subarachnoid hemorrhage is not only cerebral arterial narrowing but also early brain injury. Our objective was to determine the effect of recombinant osteopontin, a pleiotropic extracellular matrix glycoprotein, on early brain injury after subarachnoid hemorrhage in rats. DESIGN Controlled in vivo laboratory study. SETTING Animal research laboratory. SUBJECTS One hundred seventy-seven male adult Sprague-Dawley rats weighing 300 to 370 g. INTERVENTIONS The endovascular perforation model of subarachnoid hemorrhage was produced. Subarachnoid hemorrhage or sham-operated rats were treated with an equal volume (1 microL) of pre-subarachnoid hemorrhage intracerebroventricular administration of two dosages (0.02 and 0.1 microg) of recombinant osteopontin, albumin, or vehicle. Body weight, neurologic scores, brain edema, and blood-brain barrier disruption were evaluated, and Western blot analyses were performed to determine the effect of recombinant osteopontin on matrix metalloproteinase-9, substrates of matrix metalloproteinase-9 (zona occludens-1, laminin), tissue inhibitor of matrix metalloproteinase-1, inflammation (interleukin-1beta), and nuclear factor-kappaB signaling pathways. MEASUREMENTS AND MAIN RESULTS Treatment with recombinant osteopontin prevented a significant loss in body weight, neurologic impairment, brain edema, and blood-brain barrier disruption after subarachnoid hemorrhage. These effects were associated with the deactivation of nuclear factor-kappaB activity, inhibition of matrix metalloproteinase-9 induction, the maintenance of tissue inhibitor of matrix metalloproteinase-1, the consequent preservation of the cerebral microvessel basal lamina protein laminin, and the tight junction protein zona occludens-1. CONCLUSIONS These results demonstrate that recombinant osteopontin treatment is effective for early brain injury after subarachnoid hemorrhage.
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Sampson TR, Dhar R, Diringer MN. Factors associated with the development of anemia after subarachnoid hemorrhage. Neurocrit Care 2009; 12:4-9. [PMID: 19777386 DOI: 10.1007/s12028-009-9273-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 08/28/2009] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Anemia is common after subarachnoid hemorrhage (SAH) and may exacerbate the reduction in oxygen delivery that underlies delayed cerebral ischemia. Fall in hemoglobin may relate to blood loss as well as inflammatory suppression of erythropoiesis. Identifying factors associated with anemia may facilitate targeted interventions, such as the use of erythropoiesis-stimulating agents, which could minimize the burden of anemia and reduce red blood cell (RBC) transfusion requirements. METHODS We analyzed a cohort of patients with spontaneous SAH admitted over a 3-year period who survived at least 4 days. All patients had daily hematocrit values drawn while in the ICU. Multivariate regression was performed to determine baseline and early post-admission variables associated with development of anemia (defined as hematocrit < 30%). RESULTS Anemia developed in 47% of 243 patients with SAH after a mean of 3.5 days (median 2 days). Admission variables independently associated with anemia were female gender (OR 3.7, 95% CI 1.8-7.6), baseline hematocrit < 36% (OR 3.9, 1.5-10.1 compared to 36-45%), history of hypertension (OR 2.1, 1.05-4.2), and poor clinical grade (OR 5.9, 2.3-15.0). Surgical aneurysm treatment (OR 13.5, 6.0-30.3) and greater admission SIRS score (OR 5.7, 1.7-19.2 if 3-4 criteria for systemic inflammatory response syndrome were met on day of admission compared to none) were also associated with fall in hematocrit. CONCLUSIONS It may be possible to predict those most likely to develop anemia using simple baseline clinical variables. Anemia was strongly related to surgery, likely through greater blood loss, and greater systemic inflammatory response on admission, possibly explained by cytokine-mediated inhibition of RBC production.
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Affiliation(s)
- Tomoko R Sampson
- Department of Neurology, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8111, Saint Louis, MO 63110, USA
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Gao C, Liu X, Shi H, Xu S, Ji Z, Wang C, Wu P, Liu Z, Zhao S. Relationship between sympathetic nervous activity and inflammatory response after subarachnoid hemorrhage in a perforating canine model. Auton Neurosci 2009; 147:70-4. [PMID: 19217831 DOI: 10.1016/j.autneu.2009.01.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Revised: 12/07/2008] [Accepted: 01/19/2009] [Indexed: 11/28/2022]
Abstract
The objective of the present study was to evaluate the correlation between sympathetic nerve activation and inflammatory response in the acute stage of subarachnoid hemorrhage (SAH) in a canine perforating model. SAH was induced by perforation of the basilar artery with the use of a microcatheter via the femoral artery in 20 mongrel dogs. Hemodynamic parameters and intracranial pressure were recorded, and blood sample for C3a, C5b-9, IL-6, IL-8 and noradrenaline kinetic determination were measured at 0, 5, 15, 30, 60, 120, and 180 min after SAH. Noradrenaline (pg/mL) increased abruptly from 104+/-59 to 2010+/-918 at 5 min after SAH. C3a and C5b-9 reached peak values at 15 min and IL-6 and IL-8 reached peak values at 30 min after SAH, respectively. The peak values of C3a and C5b-9 correlated positively with the peak value of noradrenaline (r=0.743 and r=0.753, respectively). The peak values of IL-6 and IL-8 also correlated positively with the peak values of noradrenaline (r=0.603 and r=0.681, respectively).These results suggest that a pronounced activation of the sympathetic nervous system and the inflammatory response occurs in acute stage of SAH. Significant association between the rate of spillover of norepinephrine to plasma and the plasma levels of inflammatory markers indicates that the two processes, sympathetic activation and immune response are quantitatively linked in early stage after SAH. The exact mechanisms underlying this phenomenon deserved further investigations.
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Affiliation(s)
- Cheng Gao
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, No.23, Youzheng Street, Nangang District, Harbin, Heilongjiang, 150001, China
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Dhar R, Diringer MN. The burden of the systemic inflammatory response predicts vasospasm and outcome after subarachnoid hemorrhage. Neurocrit Care 2008; 8:404-12. [PMID: 18196475 DOI: 10.1007/s12028-008-9054-2] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Subarachnoid hemorrhage (SAH) can trigger immune activation sufficient to induce the systemic inflammatory response syndrome (SIRS). This may promote both extra-cerebral organ dysfunction and delayed cerebral ischemia, contributing to worse outcome. We ascertained the frequency and predictors of SIRS after spontaneous SAH, and determined whether degree of early systemic inflammation predicted the occurrence of vasospasm and clinical outcome. METHODS Retrospective analysis of prospectively collected data on 276 consecutive patients admitted to a neurosciences intensive care unit with acute, non-traumatic SAH between 2002 and 2005. A daily SIRS score was derived by summing the number of variables meeting standard criteria (HR >90, RR >20, Temperature >38 degrees C, or <36 degrees C, WBC count <4,000 or >12,000). SIRS was considered present if two or more criteria were met, while SIRS burden over the first four days was calculated by averaging daily scores. Regression modeling was used to determine the relationship among SIRS burden (after controlling for confounders including infection, surgery, and corticosteroid use), symptomatic vasospasm, and outcome, determined by hospital disposition. RESULTS SIRS was present in over half the patients on admission and developed in 85% within the first four days. Factors associated with SIRS included poor clinical grade, thick cisternal blood, larger aneurysm size, higher admission blood pressure, and surgery for aneurysm clipping. Higher SIRS burden was independently associated with death or discharge to nursing home (OR 2.20/point, 95% CI 1.27-3.81). All of those developing clinical vasospasm had evidence of SIRS, with greater SIRS burden predicting increased risk for delayed ischemic neurological deficits (OR 1.77/point, 95% CI 1.12-2.80). CONCLUSIONS Systemic inflammatory activation is common after SAH even in the absence of infection; it is more frequent in those with more severe hemorrhage and in those who undergo surgical clipping. Higher burden of SIRS in the initial four days independently predicts symptomatic vasospasm and is associated with worse outcome.
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Affiliation(s)
- Rajat Dhar
- Neurology/Neurosurgery Intensive Care Unit, Department of Neurology and Neurological Surgery, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8111, Saint Louis, MO 63110, USA.
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Kirkness CJ, Burr RL, Thompson HJ, Mitchell PH. Temperature Rhythm in Aneurysmal Subarachnoid Hemorrhage. Neurocrit Care 2007; 8:380-90. [DOI: 10.1007/s12028-007-9034-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kox M, Pompe J, Hoedemaekers A, Pickkers P. Does subarachnoid haemorrhage affect the innate immune response? Intensive Care Med 2007; 33:1303. [PMID: 17530221 PMCID: PMC1915595 DOI: 10.1007/s00134-007-0664-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2007] [Indexed: 10/24/2022]
Affiliation(s)
- Matthijs Kox
- Department of Intensive Care Medicine, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500, HB Nijmegen, The Netherlands
| | - Jan Pompe
- Department of Intensive Care Medicine, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500, HB Nijmegen, The Netherlands
- Department of Surgery, Section Traumatology, Radboud University Nijmegen Medical Centre, P.O. Box 9101, 6500, HB Nijmegen, The Netherlands
| | - Astrid Hoedemaekers
- Department of Intensive Care Medicine, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500, HB Nijmegen, The Netherlands
| | - Peter Pickkers
- Department of Intensive Care Medicine, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500, HB Nijmegen, The Netherlands.
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Andrews P, Azoulay E, Antonelli M, Brochard L, Brun-Buisson C, De Backer D, Dobb G, Fagon JY, Gerlach H, Groeneveld J, Macrae D, Mancebo J, Metnitz P, Nava S, Pugin J, Pinsky M, Radermacher P, Richard C. Year in review in Intensive Care Medicine, 2006. I. Experimental studies. Clinical studies: brain injury, renal failure and endocrinology. Intensive Care Med 2006; 33:49-57. [PMID: 17180391 DOI: 10.1007/s00134-006-0501-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Accepted: 11/29/2006] [Indexed: 12/31/2022]
Affiliation(s)
- Peter Andrews
- Intensive Care Medicine Unit, Western General Hospital, Edinburgh, UK
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