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Article ; Online: On the merits and potential of advanced neuroimaging techniques in COVID-19: A scoping review.

van der Knaap, Noa / Ariës, Marcel J H / van der Horst, Iwan C C / Jansen, Jacobus F A

2024 Volume 42, Page(s) 103589

Abstract: Many Coronavirus Disease 2019 (COVID-19) patients are suffering from long-term neuropsychological sequelae. These patients may benefit from a better understanding of the underlying neuropathophysiological mechanisms and identification of potential ... ...

Abstract	Many Coronavirus Disease 2019 (COVID-19) patients are suffering from long-term neuropsychological sequelae. These patients may benefit from a better understanding of the underlying neuropathophysiological mechanisms and identification of potential biomarkers and treatment targets. Structural clinical neuroimaging techniques have limited ability to visualize subtle cerebral abnormalities and to investigate brain function. This scoping review assesses the merits and potential of advanced neuroimaging techniques in COVID-19 using literature including advanced neuroimaging or postmortem analyses in adult COVID-19 patients published from the start of the pandemic until December 2023. Findings were summarized according to distinct categories of reported cerebral abnormalities revealed by different imaging techniques. Although no unified COVID-19-specific pattern could be subtracted, a broad range of cerebral abnormalities were revealed by advanced neuroimaging (likely attributable to hypoxic, vascular, and inflammatory pathology), even in absence of structural clinical imaging findings. These abnormalities are validated by postmortem examinations. This scoping review emphasizes the added value of advanced neuroimaging compared to structural clinical imaging and highlights implications for brain functioning and long-term consequences in COVID-19.
Language	English
Publishing date	2024-03-06
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	2701571-3
ISSN	2213-1582 ; 2213-1582
ISSN (online)	2213-1582
ISSN	2213-1582
DOI	10.1016/j.nicl.2024.103589
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Article ; Online: Congested: A Clinical Presentation of the Inferior Caval Vein Syndrome.

Bos, Koen H J / Ariës, Marcel J H / van der Leij, Christiaan / Heuts, Samuel

American journal of respiratory and critical care medicine

2022 Volume 206, Issue 5, Page(s) 625–627

MeSH term(s)	Humans ; Vascular Diseases ; Vena Cava, Inferior/diagnostic imaging
Language	English
Publishing date	2022-05-25
Publishing country	United States
Document type	Journal Article
ZDB-ID	1180953-x
ISSN	1535-4970 ; 0003-0805 ; 1073-449X
ISSN (online)	1535-4970
ISSN	0003-0805 ; 1073-449X
DOI	10.1164/rccm.202201-0118IM
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Article ; Online: Individualized cerebral perfusion pressure in acute neurological injury: are we ready for clinical use?

Weiss, Miriam / Meyfroidt, Geert / Aries, Marcel J H

Current opinion in critical care

2022 Volume 28, Issue 2, Page(s) 123–129

Abstract: Purpose of review: Individualizing cerebral perfusion pressure based on cerebrovascular autoregulation assessment is a promising concept for neurological injuries where autoregulation is typically impaired. The purpose of this review is to describe the ... ...

Abstract	Purpose of review: Individualizing cerebral perfusion pressure based on cerebrovascular autoregulation assessment is a promising concept for neurological injuries where autoregulation is typically impaired. The purpose of this review is to describe the status quo of autoregulation-guided protocols and discuss steps towards clinical use. Recent findings: Retrospective studies have indicated an association of impaired autoregulation and poor clinical outcome in traumatic brain injury (TBI), hypoxic-ischemic brain injury (HIBI) and aneurysmal subarachnoid hemorrhage (aSAH). The feasibility and safety to target a cerebral perfusion pressure optimal for cerebral autoregulation (CPPopt) after TBI was recently assessed by the COGITATE trial. Similarly, the feasibility to calculate a MAP target (MAPopt) based on near-infrared spectroscopy was demonstrated for HIBI. Failure to meet CPPopt is associated with the occurrence of delayed cerebral ischemia in aSAH but interventional trials in this population are lacking. No level I evidence is available on potential effects of autoregulation-guided protocols on clinical outcomes. Summary: The effect of autoregulation-guided management on patient outcomes must still be demonstrated in prospective, randomized, controlled trials. Selection of disease-specific protocols and endpoints may serve to evaluate the overall benefit from such approaches.
MeSH term(s)	Brain Injuries, Traumatic/therapy ; Cerebrovascular Circulation/physiology ; Humans ; Intracranial Pressure/physiology ; Prospective Studies ; Retrospective Studies ; Subarachnoid Hemorrhage/therapy
Language	English
Publishing date	2022-01-13
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Review
ZDB-ID	1235629-3
ISSN	1531-7072 ; 1070-5295
ISSN (online)	1531-7072
ISSN	1070-5295
DOI	10.1097/MCC.0000000000000919
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Article ; Online: Brain Oxygenation Optimization After Severe Traumatic Brain Injury: An Ode to Preventing Brain Hypoxia.

Aries, Marcel J H / Donnelly, Joseph

Critical care medicine

2018 Volume 46, Issue 4, Page(s) e350

MeSH term(s)	Brain ; Brain Injuries, Traumatic ; Humans ; Hypoxia, Brain ; Oxygen
Chemical Substances	Oxygen (S88TT14065)
Language	English
Publishing date	2018-03-14
Publishing country	United States
Document type	Letter ; Comment
ZDB-ID	197890-1
ISSN	1530-0293 ; 0090-3493
ISSN (online)	1530-0293
ISSN	0090-3493
DOI	10.1097/CCM.0000000000002923
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Article ; Online: Long-Term Follow-Up of Critically Ill Patients With Traumatic Brain Injury: From Intensive Care Parameters to Patient and Caregiver-Reported Outcome.

Domensino, Anne-Fleur / Tas, Jeanette / Donners, Babette / Kooyman, Joyce / van der Horst, Iwan C C / Haeren, Roel / Ariës, Marcel J H / van Heugten, Caroline

Journal of neurotrauma

2023 Volume 41, Issue 1-2, Page(s) 123–134

Abstract: ... ...

Abstract	Abstract
MeSH term(s)	Humans ; Follow-Up Studies ; Caregivers/psychology ; Quality of Life/psychology ; Cross-Sectional Studies ; Critical Illness ; Brain Injuries, Traumatic/therapy ; Brain Injuries, Traumatic/complications ; Brain Injuries/complications ; Critical Care ; Brain Concussion/complications ; Patient Reported Outcome Measures
Language	English
Publishing date	2023-10-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	645092-1
ISSN	1557-9042 ; 0897-7151
ISSN (online)	1557-9042
ISSN	0897-7151
DOI	10.1089/neu.2022.0474
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Article ; Online: Towards autoregulation-oriented management after traumatic brain injury: increasing the reliability and stability of the CPPopt algorithm.

Beqiri, Erta / Ercole, Ari / Aries, Marcel J H / Placek, Michal M / Tas, Jeanette / Czosnyka, Marek / Stocchetti, Nino / Smielewski, Peter

Journal of clinical monitoring and computing

2023 Volume 37, Issue 4, Page(s) 963–976

Abstract: Purpose: CPPopt denotes a Cerebral Perfusion Pressure (CPP) value at which the Pressure-Reactivity index, reflecting the global state of Cerebral Autoregulation, is best preserved. CPPopt has been investigated as a potential dynamically individualised ... ...

Abstract	Purpose: CPPopt denotes a Cerebral Perfusion Pressure (CPP) value at which the Pressure-Reactivity index, reflecting the global state of Cerebral Autoregulation, is best preserved. CPPopt has been investigated as a potential dynamically individualised CPP target in traumatic brain injury patients admitted in intensive care unit. The prospective bedside use of the concept requires ensured safety and reliability of the CPP recommended targets based on the automatically-generated CPPopt. We aimed to: Increase stability and reliability of the CPPopt automated algorithm by fine-tuning; perform outcome validation of the adjusted algorithm in a multi-centre TBI cohort. Methods: ICM + software was used to derive CPPopt and fine-tune the algorithm. Parameters for improvement of the algorithm were selected based on qualitative and quantitative assessment of stability and reliability metrics. Patients enrolled in the Collaborative European Neuro Trauma Effectiveness Research in TBI (CENTER-TBI) high-resolution cohort were included for retrospective validation. Yield and stability of the new algorithm were compared to the previous algorithm using Mann-U test. Area under the curves for mortality prediction at 6 months were compared with the DeLong Test. Results: CPPopt showed higher stability (p < 0.0001), but lower yield compared to the previous algorithm [80.5% (70-87.5) vs 85% (75.7-91.2), p < 0.001]. Deviation of CPPopt could predict mortality with an AUC of [AUC = 0.69 (95% CI 0.59-0.78), p < 0.001] and was comparable with the previous algorithm. Conclusion: The CPPopt calculation algorithm was fine-tuned and adapted for prospective use with acceptable lower yield, improved stability and maintained prognostic power.
MeSH term(s)	Humans ; Retrospective Studies ; Reproducibility of Results ; Intracranial Pressure/physiology ; Cerebrovascular Circulation/physiology ; Brain Injuries, Traumatic/therapy ; Algorithms ; Homeostasis/physiology
Language	English
Publishing date	2023-04-29
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1418733-4
ISSN	1573-2614 ; 1387-1307 ; 0748-1977
ISSN (online)	1573-2614
ISSN	1387-1307 ; 0748-1977
DOI	10.1007/s10877-023-01009-1
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Zs.A 2054: Show issues

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Article ; Online: The dependence of cerebral interstitial fluid on diffusion-sensitizing directions: A multi-b-value diffusion MRI study in a memory clinic sample.

van der Thiel, Merel M / van der Knaap, Noa / Freeze, Whitney M / Postma, Alida A / Ariës, Marcel J H / Backes, Walter H / Jansen, Jacobus F A

Magnetic resonance imaging

2023 Volume 104, Page(s) 97–104

Abstract: Three-component intravoxel incoherent motion (3C-IVIM) imaging with spectral analysis provides a proxy for interstitial fluid (ISF) (e.g., in perivascular spaces (PVS), granting a potential marker for altered cerebral clearance. When 3C-IVIM images are ... ...

Abstract	Three-component intravoxel incoherent motion (3C-IVIM) imaging with spectral analysis provides a proxy for interstitial fluid (ISF) (e.g., in perivascular spaces (PVS), granting a potential marker for altered cerebral clearance. When 3C-IVIM images are acquired with three orthogonal diffusion-sensitizing directions, these are often averaged into the Trace image. This may result in loss of valuable direction-specific information, particularly in PVS-rich regions (basal ganglia (BG) and centrum semiovale (CSO)). This study assessed the dependence of individual diffusion-sensitizing directions to the ISF fraction in PVS-rich regions. Additionally, we explored the value of diffusion direction-specific information on ISF characteristics in distinguishing thirty-one patients with cognitive impairment (CI) (Alzheimer's disease (n = 15) or Mild Cognitive Impairment (n = 16)) from thirty cognitively healthy elderly controls (CON). Multi-b-value diffusion-weighted images were acquired in three orthogonal directions (L-R (left-right), A-P (anterior-posterior) and S-I (superior-inferior)) at 3 T. Voxel-based spectral analysis using non-negative least squares was conducted to independently analyze the L-R, A-P, S-I, and Trace images. 3C-IVIM measures were first compared between diffusion-sensitizing directions and the Trace within the BG using repeated measures ANOVA. Subsequently, the 3C-IVIM measures were compared per direction between the CI and CSO group in the BG and CSO with multivariable linear regression. Our results show that the ISF fraction significantly differs between all diffusion-sensitizing directions and Trace in the BG, with the highest ISF fraction detected using S-I. Solely using S-I, a higher ISF fraction was identified in CI compared to CON in the BG (p = .020) and CSO (p = .046). Thereby, this study found that the measured ISF fraction depends on the acquired diffusion-sensitizing direction, where S-I is most sensitive to detect ISF and differences between CI and CON. The Trace approach is not always sensitive enough to ISF characteristics. Solely acquiring S-I may offer an alternative to reduce scanning time.
Language	English
Publishing date	2023-10-14
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	604885-7
ISSN	1873-5894 ; 0730-725X
ISSN (online)	1873-5894
ISSN	0730-725X
DOI	10.1016/j.mri.2023.10.003
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Article ; Online: Letter by Bennis et al Regarding Article, "Cerebral Near-Infrared Spectroscopy: A Potential Approach for Thrombectomy Monitoring".

Bennis, Frank C / Aries, Marcel J H / Delhaas, Tammo

Stroke

2018 Volume 49, Issue 3, Page(s) e135

MeSH term(s)	Cerebrovascular Circulation ; Humans ; Monitoring, Intraoperative ; Oxygen ; Spectroscopy, Near-Infrared ; Thrombectomy
Chemical Substances	Oxygen (S88TT14065)
Language	English
Publishing date	2018
Publishing country	United States
Document type	Letter ; Comment
ZDB-ID	80381-9
ISSN	1524-4628 ; 0039-2499 ; 0749-7954
ISSN (online)	1524-4628
ISSN	0039-2499 ; 0749-7954
DOI	10.1161/STROKEAHA.117.020293
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Article ; Online: Difference between brain temperature and core temperature in severe traumatic brain injury: a systematic review.

Kendall, Harry J / VAN Kuijk, Sander M / VAN DER Horst, Iwan C / Dings, Jim T / Aries, Marcel J / Haeren, Roel H

Journal of neurosurgical sciences

2022 Volume 67, Issue 1, Page(s) 46–54

Abstract: Introduction: Intensive care management for traumatic brain injury (TBI) patients aims to prevent secondary cerebral damage. Targeted temperature management is one option to prevent cerebral damage, as hypothermia may have protective effects. By ... ...

Abstract	Introduction: Intensive care management for traumatic brain injury (TBI) patients aims to prevent secondary cerebral damage. Targeted temperature management is one option to prevent cerebral damage, as hypothermia may have protective effects. By conducting a systematic literature review we evaluated: 1) the presence of a temperature difference (gradient) between brain temperature (Tb) and core temperature (Tc) in TBI patients; and 2) clinical factors associated with reported differences. Evidence acquisition: The PubMed database was systematically searched using Mesh terms and key words, and Web of Sciences was assessed for additional article citations. We included studies that continuously and simultaneously measured Tb and Tc in severe TBI patients. The National Institutes of Health (NIH) quality assessment tool for observational cohort and cross-sectional studies was modified to fit the purpose of our study. Statistical data were extracted for further meta-analyses. Evidence synthesis: We included 16 studies, with a total of 480 patients. Clinical heterogeneity consisted of Tb/Tc measurement site, measurement device, physiological changes, local protocols, and medical or surgical interventions. The studies have a high statistical heterogeneity (I2). The pooled mean temperature gradient between Tb and Tc was +0.14 °C (95% confidence interval: 0.03 to 0.24) and ranged from -1.29 to +1.1 °C. Patients who underwent a decompressive (hemi)craniectomy showed lower Tb values compared to Tc found in three studies. Conclusions: Studies on Tb and Tc are heterogeneous and show that, on average, Tb and Tc are not clinically significant different in TBI patients (<0.2 °C). Interpretations and interventions of the brain and central temperatures will benefit from standardization of temperature measurements.
MeSH term(s)	Humans ; Temperature ; Cross-Sectional Studies ; Brain Injuries, Traumatic/surgery ; Brain Injuries ; Brain/surgery ; Observational Studies as Topic
Language	English
Publishing date	2022-03-17
Publishing country	Italy
Document type	Systematic Review ; Journal Article
ZDB-ID	193139-8
ISSN	1827-1855 ; 0390-5616 ; 0026-4881
ISSN (online)	1827-1855
ISSN	0390-5616 ; 0026-4881
DOI	10.23736/S0390-5616.21.05519-3
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Article ; Online: The lower limit of reactivity as a potential individualised cerebral perfusion pressure target in traumatic brain injury: a CENTER-TBI high-resolution sub-study analysis.

Beqiri, Erta / Zeiler, Frederick A / Ercole, Ari / Placek, Michal M / Tas, Jeanette / Donnelly, Joseph / Aries, Marcel J H / Hutchinson, Peter J / Menon, David / Stocchetti, Nino / Czosnyka, Marek / Smielewski, Peter

Critical care (London, England)

2023 Volume 27, Issue 1, Page(s) 194

Abstract: Background: A previous retrospective single-centre study suggested that the percentage of time spent with cerebral perfusion pressure (CPP) below the individual lower limit of reactivity (LLR) is associated with mortality in traumatic brain injury (TBI) ...

Abstract	Background: A previous retrospective single-centre study suggested that the percentage of time spent with cerebral perfusion pressure (CPP) below the individual lower limit of reactivity (LLR) is associated with mortality in traumatic brain injury (TBI) patients. We aim to validate this in a large multicentre cohort. Methods: Recordings from 171 TBI patients from the high-resolution cohort of the CENTER-TBI study were processed with ICM+ software. We derived LLR as a time trend of CPP at a level for which the pressure reactivity index (PRx) indicates impaired cerebrovascular reactivity with low CPP. The relationship with mortality was assessed with Mann-U test (first 7-day period), Kruskal-Wallis (daily analysis for 7 days), univariate and multivariate logistic regression models. AUCs (CI 95%) were calculated and compared using DeLong's test. Results: Average LLR over the first 7 days was above 60 mmHg in 48% of patients. %time with CPP < LLR could predict mortality (AUC 0.73, p = < 0.001). This association becomes significant starting from the third day post injury. The relationship was maintained when correcting for IMPACT covariates or for high ICP. Conclusions: Using a multicentre cohort, we confirmed that CPP below LLR was associated with mortality during the first seven days post injury.
MeSH term(s)	Humans ; Retrospective Studies ; Cerebrovascular Circulation ; Brain Injuries, Traumatic ; Logistic Models ; Area Under Curve ; Intracranial Pressure
Language	English
Publishing date	2023-05-20
Publishing country	England
Document type	Journal Article
ZDB-ID	2041406-7
ISSN	1466-609X ; 1364-8535
ISSN (online)	1466-609X
ISSN	1364-8535
DOI	10.1186/s13054-023-04485-8
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