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Published on: December 16, 2022
The Determinants of Dementia After Stroke (DEDEMAS) Study: protocol and pilot data
Frank A Wollenweber1, Vera Zietemann, Axel Rominger
1Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-University, Munich, Germany.
Summary
This study investigates the causes of dementia after stroke, a common complication. Researchers aim to identify key factors and mechanisms to develop new diagnostic markers and preventive treatments for poststroke cognitive impairment.
Area of Science:
- Neurology
- Neuroscience
- Gerontology
Background:
- Approximately 20% of stroke survivors develop dementia within months of the event.
- The underlying mechanisms and determinants of poststroke dementia remain poorly understood.
- Identifying these factors is crucial for developing effective interventions.
Purpose of the Study:
- To identify and characterize the determinants of cognitive impairment following a stroke.
- To gain insights into the mechanisms of poststroke dementia.
- To discover novel diagnostic markers and potential therapeutic targets for prevention.
Main Methods:
- An observational prospective study involving 600 acute stroke patients without prior dementia.
- Comprehensive assessments including clinical examinations, biometric measurements, and multimodal imaging (MRI, FDG-PET, amyloid-PET).
- Analysis of blood and cerebrospinal fluid biomarkers, detailed cognitive testing over five years, and Cox proportional-hazards modeling for predictive factor identification.
Main Results:
- Baseline data from 71 patients show a median age of 70, with 35% female.
- Common stroke etiologies included cardioembolic (35%) and undetermined/multiple (32%).
- The primary endpoint is the incidence of poststroke dementia, with secondary endpoints including cognitive impairment-no dementia, stroke recurrence, and mortality.
Conclusions:
- This research will elucidate the mechanisms driving poststroke dementia.
- The study has the potential to identify new biomarkers for diagnosis.
- Findings may lead to the development of preventive strategies and targeted therapies for poststroke cognitive decline.
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01:30Dementia
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The progression of dementia is generally gradual.
The progression of dementia is generally gradual.