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Related Concept Videos

Dementia01:30

Dementia

681
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
681
Dementia l: Introduction01:22

Dementia l: Introduction

29
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
29
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

19
Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
19
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

1.7K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.7K
Alzheimer's Disease: Treatment01:22

Alzheimer's Disease: Treatment

1.3K
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
1.3K
Alzheimer Disease ll: Pathophysiology01:23

Alzheimer Disease ll: Pathophysiology

21
Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and...
21

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Related Experiment Video

Updated: Apr 26, 2026

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
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In the Clinic. Dementia.

Peter V Rabins, David M Blass

    Annals of Internal Medicine
    |August 5, 2014
    PubMed
    Summary
    This summary is machine-generated.

    This clinical overview covers dementia prevention, diagnosis, treatment, and practice improvement. It offers essential patient information and resources for healthcare professionals.

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    Area of Science:

    • Geriatrics
    • Neurology
    • Internal Medicine

    Background:

    • Dementia presents a significant clinical challenge, impacting millions globally.
    • Effective management requires a comprehensive approach encompassing prevention, early diagnosis, and tailored treatment strategies.

    Purpose of the Study:

    • To provide a clinical overview of dementia.
    • To focus on key aspects including prevention, diagnosis, treatment, practice improvement, and patient information.

    Main Methods:

    • Content is derived from the American College of Physicians (ACP) clinical resources.
    • Includes information from ACP Smart Medicine and Medical Knowledge and Self-Assessment Program (MKSAP).
    • Developed by Annals of Internal Medicine editors in collaboration with ACP divisions and expert writers.

    Main Results:

    • The issue synthesizes current clinical knowledge on dementia care.
    • Highlights strategies for enhancing clinical practice and patient education.

    Conclusions:

    • This overview serves as a valuable resource for clinicians managing dementia.
    • Emphasizes the importance of continuous learning and utilizing expert-vetted resources for optimal patient outcomes.