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Artikel: An overview of clinical cerebral microdialysis in acute brain injury.

Stovell, Matthew G / Helmy, Adel / Thelin, Eric P / Jalloh, Ibrahim / Hutchinson, Peter J / Carpenter, Keri L H

2023 Band 14, Seite(n) 1085540

Abstract: Cerebral microdialysis may be used in patients with severe brain injury to monitor their cerebral physiology. In this article we provide a concise synopsis with illustrations and original images of catheter types, their structure, and how they function. ... ...

Abstract	Cerebral microdialysis may be used in patients with severe brain injury to monitor their cerebral physiology. In this article we provide a concise synopsis with illustrations and original images of catheter types, their structure, and how they function. Where and how catheters are inserted, their identification on imaging modalities (CT and MRI), together with the roles of glucose, lactate/pyruvate ratio, glutamate, glycerol and urea are summarized in acute brain injury. The research applications of microdialysis including pharmacokinetic studies, retromicrodialysis, and its use as a biomarker for efficacy of potential therapies are outlined. Finally, we explore limitations and pitfalls of the technique, as well as potential improvements and future work that is needed to progress and expand the use of this technology.
Sprache	Englisch
Erscheinungsdatum	2023-02-21
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article ; Review
ZDB-ID	2564214-5
ISSN	1664-2295
ISSN	1664-2295
DOI	10.3389/fneur.2023.1085540
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Delayed Neurosurgical Intervention in Traumatic Brain Injury Patients Referred From Primary Hospitals Is Not Associated With an Unfavorable Outcome.

Grevfors, Niklas / Lindblad, Caroline / Nelson, David W / Svensson, Mikael / Thelin, Eric Peter / Rubenson Wahlin, Rebecka

Frontiers in neurology

2021 Band 11, Seite(n) 610192

Abstract: Background: ...

Abstract	Background:
Sprache	Englisch
Erscheinungsdatum	2021-01-13
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2564214-5
ISSN	1664-2295
ISSN	1664-2295
DOI	10.3389/fneur.2020.610192
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Predictors of intracranial hemorrhage in neonatal patients on extracorporeal membrane oxygenation.

Wood, Sara / Iacobelli, Riccardo / Kopfer, Sarah / Lindblad, Caroline / Thelin, Eric Peter / Fletcher-Sandersjöö, Alexander / Broman, Lars Mikael

Scientific reports

2023 Band 13, Heft 1, Seite(n) 19249

Abstract: Extracorporeal membrane oxygenation (ECMO) is a life-supportive treatment in neonatal patients with refractory lung and/or heart failure. Intracranial hemorrhage (ICH) is a severe complication and reliable predictors are warranted. The aims of this study ...

Abstract	Extracorporeal membrane oxygenation (ECMO) is a life-supportive treatment in neonatal patients with refractory lung and/or heart failure. Intracranial hemorrhage (ICH) is a severe complication and reliable predictors are warranted. The aims of this study were to explore the incidence and possible predictors of ICH in ECMO-treated neonatal patients. We performed a single-center retrospective observational cohort study. Patients aged ≤ 28 days treated with ECMO between 2010 and 2018 were included. Exclusion criteria were ICH, ischemic stroke, cerebrovascular malformation before ECMO initiation or detected within 12 h of admission, ECMO treatment < 12 h, or prior treatment with ECMO at another facility > 12 h. The primary outcome was a CT-verified ICH. Logistic regression models were employed to identify possible predictors of the primary outcome. Of the 223 patients included, 29 (13%) developed an ICH during ECMO treatment. Thirty-day mortality was 59% in the ICH group and 16% in the non-ICH group (p < 0.0001). Lower gestational age (p < 0.01, odds ratio (OR) 0.96; 95%CI 0.94-0.98), and higher pre-ECMO lactate levels (p = 0.017, OR 1.1; 95%CI 1.01-1.18) were independently associated with increased risk of ICH-development. In the clinical setting, identification of risk factors and multimodal neuromonitoring could help initiate steps that lower the risk of ICH in these patients.
Mesh-Begriff(e)	Infant, Newborn ; Humans ; Extracorporeal Membrane Oxygenation/adverse effects ; Retrospective Studies ; Intracranial Hemorrhages/epidemiology ; Intracranial Hemorrhages/etiology ; Risk Factors ; Ischemic Stroke/etiology
Sprache	Englisch
Erscheinungsdatum	2023-11-07
Erscheinungsland	England
Dokumenttyp	Observational Study ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-46243-4
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Optimizing Choice and Timing of Behavioral Outcome Tests After Repetitive Mild Traumatic Brain Injury: A Machine Learning-Based Approach on Multiple Pre-Clinical Experiments.

Lassarén, Philipp / Conley, Grace / Boucher, Masen L / Conley, Ashley N / Morriss, Nicholas J / Qiu, Jianhua / Mannix, Rebekah C / Thelin, Eric Peter

Journal of neurotrauma

2023 Band 40, Heft 15-16, Seite(n) 1762–1778

Abstract: Repetitive mild traumatic brain injury (rmTBI) is a potentially debilitating condition with long-term sequelae. Animal models are used to study rmTBI in a controlled environment, but there is currently no established standard battery of behavioral tests ... ...

Abstract	Repetitive mild traumatic brain injury (rmTBI) is a potentially debilitating condition with long-term sequelae. Animal models are used to study rmTBI in a controlled environment, but there is currently no established standard battery of behavioral tests used. Primarily, we aimed to identify the best combination and timing of behavioral tests to distinguish injured from uninjured animals in rmTBI studies, and secondarily, to determine whether combinations of independent experiments have better behavioral outcome prediction accuracy than individual experiments. Data from 1203 mice from 58 rmTBI experiments, some of which have already been published, were used. In total, 11 types of behavioral tests were measured by 37 parameters at 13 time points during the first 6 months after injury. Univariate regression analyses were used to identify optimal combinations of behavioral tests and whether the inclusion of multiple heterogenous experiments improved accuracy.
Mesh-Begriff(e)	Mice ; Animals ; Brain Concussion/diagnosis ; Brain Concussion/complications ; Maze Learning ; Models, Animal ; Behavior, Animal ; Disease Models, Animal
Sprache	Englisch
Erscheinungsdatum	2023-03-21
Erscheinungsland	United States
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	645092-1
ISSN	1557-9042 ; 0897-7151
ISSN (online)	1557-9042
ISSN	0897-7151
DOI	10.1089/neu.2022.0486
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Dexamethasone reduces vascular endothelial growth factor in comparison to placebo in post-operative chronic subdural hematoma samples: A target for future drug therapy?

Edlmann, Ellie / Giorgi-Coll, Susan / Thelin, Eric P / Hutchinson, Peter J / Carpenter, Keri L H

Frontiers in neurology

2022 Band 13, Seite(n) 952308

Abstract: Background: Chronic subdural hematoma (CSDH) is a collection of blood and fluid that arises on the brain surface due to a combination of trauma and/or inflammation. The mainstay of treatment is surgical drainage, but CSDH can recur. Dexamethasone has ... ...

Abstract	Background: Chronic subdural hematoma (CSDH) is a collection of blood and fluid that arises on the brain surface due to a combination of trauma and/or inflammation. The mainstay of treatment is surgical drainage, but CSDH can recur. Dexamethasone has been shown to reduce CSDH recurrence, but its mechanism of action has not been fully elucidated. Understanding the inflammatory mediators driving CSDH formation and recurrence and how dexamethasone alters this can help develop new therapeutic strategies. Methods: A subgroup of adult patients recruited to the Dex-CSDH trial, randomized to dexamethasone or placebo, who had surgery for their CSDH, were included. CSDH fluid and peripheral blood were collected intraoperatively, from post-operative drains and operated recurrences. Samples were analyzed using a 12-plex panel of inflammatory mediators. Clinical patient data were also reviewed. Results: A total of 52 patients, with a mean age of 76 years, were included. Five recurrent CSDHs occurred. Vascular endothelial growth factor (VEGF) had the highest concentration across all CSDHs, and only matrix metalloproteinase (MMP)-9 had lower concentrations in CSDH compared to plasma but was increased in recurrent CSDHs. The interleukin (IL)-10 concentration was significantly lower in primary CSDHs that recurred. Most inflammatory mediators increased post-operatively, and dexamethasone significantly reduced the post-operative peak in VEGF on day 2, compared to placebo. Conclusion: It is evident that VEGF plays a critical role in the inflammatory response in CSDH. The post-operative reduction with dexamethasone could signal the mechanism by which it reduces recurrence. Novel therapies with a better side-effect profile than dexamethasone should be targeted at VEGF or potential alternatives such as IL-10 supplementation.
Sprache	Englisch
Erscheinungsdatum	2022-09-08
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2564214-5
ISSN	1664-2295
ISSN	1664-2295
DOI	10.3389/fneur.2022.952308
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: The cerebrospinal fluid proteome of preterm infants predicts neurodevelopmental outcome.

Leifsdottir, Kristin / Jost, Kerstin / Siljehav, Veronica / Thelin, Eric P / Lassarén, Philipp / Nilsson, Peter / Haraldsson, Ásgeir / Eksborg, Staffan / Herlenius, Eric

Frontiers in pediatrics

2022 Band 10, Seite(n) 921444

Abstract: Background: Survival rate increases for preterm infants, but long-term neurodevelopmental outcome predictors are lacking. Our primary aim was to determine whether a specific proteomic profile in cerebrospinal fluid (CSF) of preterm infants differs from ... ...

Abstract	Background: Survival rate increases for preterm infants, but long-term neurodevelopmental outcome predictors are lacking. Our primary aim was to determine whether a specific proteomic profile in cerebrospinal fluid (CSF) of preterm infants differs from that of term infants and to identify novel biomarkers of neurodevelopmental outcome in preterm infants. Methods: Twenty-seven preterm infants with median gestational age 27 w + 4 d and ten full-term infants were enrolled prospectively. Protein profiling of CSF were performed utilizing an antibody suspension bead array. The relative levels of 178 unique brain derived proteins and inflammatory mediators, selected from the Human Protein Atlas, were measured. Results: The CSF protein profile of preterm infants differed from that of term infants. Increased levels of brain specific proteins that are associated with neurodevelopment and neuroinflammatory pathways made up a distinct protein profile in the preterm infants. The most significant differences were seen in proteins involved in neurodevelopmental regulation and synaptic plasticity, as well as components of the innate immune system. Several proteins correlated with favorable outcome in preterm infants at 18-24 months corrected age. Among the proteins that provided strong predictors of outcome were vascular endothelial growth factor C, Neurocan core protein and seizure protein 6, all highly important in normal brain development. Conclusion: Our data suggest a vulnerability of the preterm brain to postnatal events and that alterations in protein levels may contribute to unfavorable neurodevelopmental outcome.
Sprache	Englisch
Erscheinungsdatum	2022-07-19
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2711999-3
ISSN	2296-2360
ISSN	2296-2360
DOI	10.3389/fped.2022.921444
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Proteomic profiles in cerebrospinal fluid predicted death and disability in term infants with perinatal asphyxia: A pilot study.

Leifsdottir, Kristin / Thelin, Eric P / Lassarén, Philipp / Siljehav, Veronica / Nilsson, Peter / Eksborg, Staffan / Herlenius, Eric

Acta paediatrica (Oslo, Norway : 1992)

2022 Band 111, Heft 5, Seite(n) 961–970

Abstract: Aim: Perinatal asphyxia, resulting in hypoxic-ischaemic encephalopathy (HIE), has been associated with high mortality rates and severe lifelong neurodevelopmental disabilities. Our aim was to study the association between the proteomic profile in ... ...

Abstract	Aim: Perinatal asphyxia, resulting in hypoxic-ischaemic encephalopathy (HIE), has been associated with high mortality rates and severe lifelong neurodevelopmental disabilities. Our aim was to study the association between the proteomic profile in cerebrospinal fluid (CSF) and the degree of HIE and long-term outcomes. Methods: We prospectively enrolled 18-term born infants with HIE and 10-term born controls between 2000 and 2004 from the Karolinska University Hospital. An antibody suspension bead array and FlexMap3D analysis was used to characterise 178 unique brain-derived and inflammation associated proteins in their CSF. Results: Increased CSF concentrations of several brain-specific proteins were observed in the proteome of HIE patients compared with the controls. An upregulation of neuroinflammatory pathways was also noted and this was confirmed by pathway analysis. Principal component analysis revealed a gradient from favourable to unfavourable HIE grades and outcomes. The proteins that provided strong predictors were structural proteins, including myelin basic protein and alpha-II spectrin. The functional proteins included energy-related proteins like neuron-specific enolase and synaptic regulatory proteins. Increased CSF levels of 51 proteins correlated with adverse outcomes in infants with HIE. Conclusion: Brain-specific proteins and neuroinflammatory mediators in CSF may predict HIE degrees and outcomes after perinatal asphyxia.
Mesh-Begriff(e)	Asphyxia ; Asphyxia Neonatorum/complications ; Female ; Humans ; Hypoxia-Ischemia, Brain/complications ; Infant ; Infant, Newborn ; Pilot Projects ; Pregnancy ; Proteomics
Sprache	Englisch
Erscheinungsdatum	2022-02-17
Erscheinungsland	Norway
Dokumenttyp	Journal Article
ZDB-ID	203487-6
ISSN	1651-2227 ; 0365-1436 ; 0803-5253
ISSN (online)	1651-2227
ISSN	0365-1436 ; 0803-5253
DOI	10.1111/apa.16277
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Predictors of intracranial hemorrhage in neonatal patients on extracorporeal membrane oxygenation

Sara Wood / Riccardo Iacobelli / Sarah Kopfer / Caroline Lindblad / Eric Peter Thelin / Alexander Fletcher-Sandersjöö / Lars Mikael Broman

Scientific Reports, Vol 13, Iss 1, Pp 1-

2023 Band 10

Abstract: Abstract Extracorporeal membrane oxygenation (ECMO) is a life-supportive treatment in neonatal patients with refractory lung and/or heart failure. Intracranial hemorrhage (ICH) is a severe complication and reliable predictors are warranted. The aims of ... ...

Abstract	Abstract Extracorporeal membrane oxygenation (ECMO) is a life-supportive treatment in neonatal patients with refractory lung and/or heart failure. Intracranial hemorrhage (ICH) is a severe complication and reliable predictors are warranted. The aims of this study were to explore the incidence and possible predictors of ICH in ECMO-treated neonatal patients. We performed a single-center retrospective observational cohort study. Patients aged ≤ 28 days treated with ECMO between 2010 and 2018 were included. Exclusion criteria were ICH, ischemic stroke, cerebrovascular malformation before ECMO initiation or detected within 12 h of admission, ECMO treatment < 12 h, or prior treatment with ECMO at another facility > 12 h. The primary outcome was a CT-verified ICH. Logistic regression models were employed to identify possible predictors of the primary outcome. Of the 223 patients included, 29 (13%) developed an ICH during ECMO treatment. Thirty-day mortality was 59% in the ICH group and 16% in the non-ICH group (p < 0.0001). Lower gestational age (p < 0.01, odds ratio (OR) 0.96; 95%CI 0.94–0.98), and higher pre-ECMO lactate levels (p = 0.017, OR 1.1; 95%CI 1.01–1.18) were independently associated with increased risk of ICH-development. In the clinical setting, identification of risk factors and multimodal neuromonitoring could help initiate steps that lower the risk of ICH in these patients.
Schlagwörter	Medicine ; R ; Science ; Q
Thema/Rubrik (Code)	610 ; 616
Sprache	Englisch
Erscheinungsdatum	2023-11-01T00:00:00Z
Verlag	Nature Portfolio
Dokumenttyp	Artikel ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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Artikel: Editorial: Monitoring Pathophysiology in the Injured Brain.

Thelin, Eric Peter / Helmy, Adel / Nelson, David W / Marklund, Niklas

Frontiers in neurology

2018 Band 9, Seite(n) 193

Sprache	Englisch
Erscheinungsdatum	2018-03-26
Erscheinungsland	Switzerland
Dokumenttyp	Editorial
ZDB-ID	2564214-5
ISSN	1664-2295
ISSN	1664-2295
DOI	10.3389/fneur.2018.00193
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Predictors of brain infarction in adult patients on extracorporeal membrane oxygenation: an observational cohort study.

Iacobelli, Riccardo / Fletcher-Sandersjöö, Alexander / Lindblad, Caroline / Keselman, Boris / Thelin, Eric Peter / Broman, Lars Mikael

Scientific reports

2021 Band 11, Heft 1, Seite(n) 3809

Abstract: Non-hemorrhagic brain infarction (BI) is a recognized complication in adults treated with extracorporeal membrane oxygenation (ECMO) and associated with increased mortality. However, predictors of BI in these patients are poorly understood. The aim of ... ...

Abstract	Non-hemorrhagic brain infarction (BI) is a recognized complication in adults treated with extracorporeal membrane oxygenation (ECMO) and associated with increased mortality. However, predictors of BI in these patients are poorly understood. The aim of this study was to identify predictors of BI in ECMO-treated adult patients. We conducted an observational cohort study of all adult patients treated with venovenous or venoarterial (VA) ECMO at our center between 2010 and 2018. The primary endpoint was a computed tomography (CT) verified BI. Logistic regression models were employed to identify BI predictors. In total, 275 patients were included, of whom 41 (15%) developed a BI. Pre-ECMO Simplified Acute Physiology Score III, pre-ECMO cardiac arrest, VA ECMO and conversion between ECMO modes were identified as predictors of BI. In the multivariable analysis, VA ECMO demonstrated independent risk association. VA ECMO also remained the independent BI predictor in a sub-group analysis excluding patients who did not undergo a head CT scan during ECMO treatment. The incidence of BI in adult ECMO patients may be higher than previously believed and is independently associated with VA ECMO mode. Larger prospective trials are warranted to validate these findings and ascertain their clinical significance.
Mesh-Begriff(e)	Adult ; Brain Infarction/complications ; Brain Infarction/diagnostic imaging ; Brain Infarction/mortality ; Brain Infarction/therapy ; Cohort Studies ; Extracorporeal Membrane Oxygenation/adverse effects ; Female ; Heart Arrest/diagnostic imaging ; Heart Arrest/etiology ; Heart Arrest/mortality ; Heart Arrest/pathology ; Hospital Mortality ; Humans ; Logistic Models ; Male ; Middle Aged ; Prospective Studies ; Retrospective Studies ; Risk Factors ; Tomography, Emission-Computed
Sprache	Englisch
Erscheinungsdatum	2021-02-15
Erscheinungsland	England
Dokumenttyp	Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-021-83157-5
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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