Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
200 participants
OBSERVATIONAL
2018-07-13
2022-05-23
Brief Summary
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This study is designed to provide detailed information on cognition after OHCA and its relationship to associated factors as emotional function, fatigue, and sleep. A secondary aim is to utilize this information to validate a neurocognitive screening battery used 6 months after OHCA in the TTM2-trial.
Approximately 7 and 24 months after OHCA, survivors at selected TTM2 study sites will perform a standardized neuropsychological assessment including performance-based tests of cognition and questionnaires of behavioral and emotional function, fatigue, and insomnia. At 1:1 ratio, a control group of myocardial infarction (MI) patients but no occurrence of cardiac arrest will be recruited and perform the same test battery. Group differences at 7 and 24 months will be analyzed per cognitive domain (verbal, visual/constructive, short-term working memory, episodic memory, processing speed, executive functions). Results of the OHCA survivors on the TTM2 neurocognitive screening battery will be compared with neuropsychological test results at 7 months time.
Detailed Description
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Conditions
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Keywords
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Cardiac Arrest survivors
Cardiac arrest survivors at selected TTM2-sites only.
Neuropsychological assessment
Standardized neuropsychological battery consisting of the following tests and questionnaires: Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV) Vocabulary, Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency, WAIS-IV Block Design, WAIS-IV Matrix Reasoning, WAIS-IV Digit Span, Wechsler Memory Scale - Third Edition (WMS-III) Spatial Span, Rey Auditory Verbal Learning Test (RAVLT), WMS-III Logical Memory, Brief Visuospatial Memory Test-Revised (BVMT-R), Trail Making Test (TMT) A \& B, D-KEFS Color Word Interference Test, Behavioral Assessment of the Dysexecutive Syndrome Dysexecutive Questionnaire (BADS DEX), Multidimensional Fatigue Inventory (MFI-20), Minimal Insomnia Symptom Scale (MISS), Hospital Anxiety and Depression Scale (HADS).
Myocardial Infarction patients
A control group from a cohort of patients with myocardial infarction with performed coronary angiography but no occurrence of cardiac arrest will be recruited at 1:1 ratio.
Neuropsychological assessment
Standardized neuropsychological battery consisting of the following tests and questionnaires: Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV) Vocabulary, Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency, WAIS-IV Block Design, WAIS-IV Matrix Reasoning, WAIS-IV Digit Span, Wechsler Memory Scale - Third Edition (WMS-III) Spatial Span, Rey Auditory Verbal Learning Test (RAVLT), WMS-III Logical Memory, Brief Visuospatial Memory Test-Revised (BVMT-R), Trail Making Test (TMT) A \& B, D-KEFS Color Word Interference Test, Behavioral Assessment of the Dysexecutive Syndrome Dysexecutive Questionnaire (BADS DEX), Multidimensional Fatigue Inventory (MFI-20), Minimal Insomnia Symptom Scale (MISS), Hospital Anxiety and Depression Scale (HADS).
Interventions
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Neuropsychological assessment
Standardized neuropsychological battery consisting of the following tests and questionnaires: Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV) Vocabulary, Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency, WAIS-IV Block Design, WAIS-IV Matrix Reasoning, WAIS-IV Digit Span, Wechsler Memory Scale - Third Edition (WMS-III) Spatial Span, Rey Auditory Verbal Learning Test (RAVLT), WMS-III Logical Memory, Brief Visuospatial Memory Test-Revised (BVMT-R), Trail Making Test (TMT) A \& B, D-KEFS Color Word Interference Test, Behavioral Assessment of the Dysexecutive Syndrome Dysexecutive Questionnaire (BADS DEX), Multidimensional Fatigue Inventory (MFI-20), Minimal Insomnia Symptom Scale (MISS), Hospital Anxiety and Depression Scale (HADS).
Eligibility Criteria
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Inclusion Criteria
* Sustained return of spontaneous circulation (ROSC) during intensive care - defined as 20 minutes with signs of circulation without the need for chest compressions (OHCA cohort only)
* Unconsciousness - defined as not being able to obey verbal commands (FOUR-score motor response of \<4) and no verbal response to pain after sustained ROSC (OHCA cohort only)
* Inclusion within 180 minutes of ROSC (OHCA cohort only)
* During intensive care - eligible for intensive care without restrictions or limitations (OHCA cohort only)
* MI with performed coronary angiography (MI cohort only)
Exclusion Criteria
* On extracorporeal membrane oxygenation (ECMO) prior to return of spontaneous circulation (OHCA cohort only)
* Obvious or suspected pregnancy
* Intracranial bleeding (OHCA cohort only)
* Severe chronic obstructive pulmonary disorder (COPD) with long-term home oxygen therapy
* Clinical dementia diagnosis before the event
* Inability to speak the local language well enough to complete the assessment without assistance from an interpreter
* Inability to meet for a face-to-face examination
* Clinical Frailty Scale Index ≥8, indicating very severe frailty
* Cardiac arrest before or in connection with MI (MI cohort only)
* Active substance abuse
18 Years
80 Years
ALL
No
Sponsors
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Lund University
OTHER
Halmstad County Hospital
OTHER
Sahlgrenska University Hospital
OTHER
Mid and South Essex NHS Foundation Trust
OTHER
Cardiff and Vale University Health Board
OTHER_GOV
Aarhus University Hospital
OTHER
Region Skane
OTHER
Responsible Party
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Principal Investigators
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Niklas Nielsen, MD, PhD
Role: STUDY_DIRECTOR
Lund University
Gisela Lilja, PhD, OT
Role: STUDY_DIRECTOR
Lund University
Tobias Cronberg, MD, PhD
Role: STUDY_DIRECTOR
Lund University
Susanna Vestberg, PhD, Lic.Psych.
Role: STUDY_DIRECTOR
Lund University
Erik Blennow Nordström, PhD, Lic.Psych.
Role: PRINCIPAL_INVESTIGATOR
Lund University
Locations
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Aarhus University Hospital
Aarhus, , Denmark
Sahlgrenska University Hospital
Gothenburg, , Sweden
Halmstad County Hospital
Halmstad, , Sweden
Helsingborg Hospital
Helsingborg, , Sweden
Skane University Hospital
Lund, , Sweden
Skane University Hospital
Malmo, , Sweden
The Essex Cardiothoracic Centre, Basildon and Thurrock University Hospitals NHS Foundation Trust
Basildon, Essex, United Kingdom
University Hospital of Wales, Cardiff and Vale University Health Board
Cardiff, Wales, United Kingdom
Countries
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References
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Blennow Nordstrom E, Lilja G, Vestberg S, Ullen S, Friberg H, Nielsen N, Heimburg K, Evald L, Mion M, Segerstrom M, Grejs AM, Keeble T, Kirkegaard H, Ljung H, Rose S, Wise MP, Rylander C, Unden J, Cronberg T. Neuropsychological outcome after cardiac arrest: a prospective case control sub-study of the Targeted hypothermia versus targeted normothermia after out-of-hospital cardiac arrest trial (TTM2). BMC Cardiovasc Disord. 2020 Oct 7;20(1):439. doi: 10.1186/s12872-020-01721-9.
Blennow Nordstrom E, Evald L, Mion M, Segerstrom M, Vestberg S, Ullen S, Heimburg K, Gregersen Oestergaard L, Grejs AM, Keeble TR, Kirkegaard H, Rylander C, Wise MP, Lilja G. Combined use of the Montreal Cognitive Assessment and Symbol Digit Modalities Test improves neurocognitive screening accuracy after cardiac arrest: A validation sub-study of the TTM2 trial. Resuscitation. 2024 Sep;202:110361. doi: 10.1016/j.resuscitation.2024.110361. Epub 2024 Aug 13.
Vig A, Vestberg S, Evald L, Mion M, Segerstrom M, Ullen S, Arestedt K, Nielsen N, Cronberg T, Lilja G, Blennow Nordstrom E. Psychometric properties of the Dysexecutive Questionnaire (DEX) in individuals with a previous cardiac event. Neuropsychol Rehabil. 2025 Nov 27:1-21. doi: 10.1080/09602011.2025.2591784. Online ahead of print.
Blennow Nordstrom E, Vestberg S, Evald L, Mion M, Segerstrom M, Ullen S, Bro-Jeppesen J, Friberg H, Heimburg K, Grejs AM, Keeble TR, Kirkegaard H, Ljung H, Rose S, Wise MP, Rylander C, Unden J, Nielsen N, Cronberg T, Lilja G. Neuropsychological outcome after cardiac arrest: results from a sub-study of the targeted hypothermia versus targeted normothermia after out-of-hospital cardiac arrest (TTM2) trial. Crit Care. 2023 Aug 26;27(1):328. doi: 10.1186/s13054-023-04617-0.
Other Identifiers
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CardiacArrestLundNeuropsych
Identifier Type: -
Identifier Source: org_study_id