The disease is linked to a buildup of abnormal protein deposits called Lewy bodies that build up in the brain. These deposits play a role in memory, visual processing, and motor control. It is not known why they build up.
Lewy body disease is more common in people over 65 years old.
Things that may raise the risk are:
High blood pressure
Having certain genetic mutations
Symptoms may be:
Changes in thinking
Lack of focus
Slowness when moving
Problems naming things
Seeing things that are not there
Having beliefs that are not based in reality
The doctor will ask about your symptoms and health history. A physical exam will be done. Cognitive tests will also be done.
Images may be taken to help support the diagnosis. This can be done with:
Dementia with Lewy bodies information page. National Institute of Neurological Disorders and Stroke website. Available at: https://www.ninds.nih.gov/Disorders/All-Disorders/Dementia-Lewy-Bodies-Information-Page. Updated March 27, 2019. Accessed October 11, 2019.
McKeith IG, Boeve BF, et al. Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium. Neurology. 2017 Jul 4;89(1):88-100.
9/3/2014 DynaMed Systematic Literature Surveillance. Available at:https://www.dynamed.com/evaluation/dementia-evaluation: Wippold FJ, Brown DC, Broderick DF, et al. American College of Radiology (ACR) Appropriateness Criteria for dementia and movement disorders. Available at: http://www.acr.org/~/media/ACR/Documents/AppCriteria/Diagnostic/DementiaAndMovementDisorders.pdf. Updated 2014. Accessed September 3, 2014.
Last reviewed September 2019 by
EBSCO Medical Review Board
Rimas Lukas, MD
Last Updated: 7/15/2020
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