Podcast
Questions and Answers
Which type of memory is involved in learning motor skills and cognitive tasks?
Which type of memory is involved in learning motor skills and cognitive tasks?
What percentage of dementia cases is accounted for by Vascular Dementia (VaD)?
What percentage of dementia cases is accounted for by Vascular Dementia (VaD)?
Which of the following is NOT one of the preferred diagnostic criteria for Frontotemporal Dementia (FTD)?
Which of the following is NOT one of the preferred diagnostic criteria for Frontotemporal Dementia (FTD)?
Which cognitive deficit is required for the diagnosis of Probable Alzheimer’s Disease according to NINCDS/ADRDA criteria?
Which cognitive deficit is required for the diagnosis of Probable Alzheimer’s Disease according to NINCDS/ADRDA criteria?
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At what age must Alzheimer's Disease onset occur to meet the specific criteria laid out by NINCDS/ADRDA?
At what age must Alzheimer's Disease onset occur to meet the specific criteria laid out by NINCDS/ADRDA?
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What is the estimated prevalence of dementia in individuals aged 80 and older?
What is the estimated prevalence of dementia in individuals aged 80 and older?
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Which of the following accurately describes dementia according to its definition?
Which of the following accurately describes dementia according to its definition?
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Which statement regarding recorded dementia diagnoses is correct?
Which statement regarding recorded dementia diagnoses is correct?
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What age range has the highest prevalence rate of dementia according to the provided statistics?
What age range has the highest prevalence rate of dementia according to the provided statistics?
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What aspect of function is not directly disturbed by dementia?
What aspect of function is not directly disturbed by dementia?
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What criterion must be met for a diagnosis of Vascular Dementia according to the NINDS-AIREN criteria?
What criterion must be met for a diagnosis of Vascular Dementia according to the NINDS-AIREN criteria?
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Which symptom is NOT explicitly listed as a requirement for the diagnosis of Dementia with Lewy bodies?
Which symptom is NOT explicitly listed as a requirement for the diagnosis of Dementia with Lewy bodies?
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In order to meet the criteria for Frontotemporal Dementia, which of the following is not required?
In order to meet the criteria for Frontotemporal Dementia, which of the following is not required?
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Which feature is supportive but not required for a diagnosis of Dementia with Lewy bodies?
Which feature is supportive but not required for a diagnosis of Dementia with Lewy bodies?
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Which combination is a hallmark indicator of Vascular Dementia progression?
Which combination is a hallmark indicator of Vascular Dementia progression?
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Study Notes
What is Dementia?
- Dementia is a syndrome caused by brain disease, usually chronic or progressive.
- It involves multiple higher cortical function disturbances, including memory, thinking, orientation, comprehension, calculation, learning, language, and judgment.
- Consciousness remains unaffected.
- Cognitive impairment is often accompanied or preceded by emotional control, social behavior, or motivational deterioration. This definition is based on the WHO 1992 (ICD 10).
- Different types of memory are affected: perceptual representation memory, working memory, semantic memory, episodic memory, and procedural memory.
Prevalence Rates
- Dementia prevalence increases significantly with age.
- Prevalence: 1 in 1000 (40-65 years), 1 in 50 (65-70 years), 1 in 20 (70-80 years), 1 in 5 (80+ years).
- Higher prevalence rates in women compared to men across all age groups.
Types of Dementia
- Alzheimer's Disease (AD): Accounts for 62% of dementia cases (Dementia UK Report 2007). Preferred diagnostic criteria include NINCDS/ADRDA.
- Vascular Dementia (VaD): Accounts for 17% of dementia cases (Dementia UK Report 2007). Preferred diagnostic criteria include NINDS-AIREN.
- Dementia with Lewy Bodies (DLB): Accounts for 4% of dementia cases (Dementia UK Report 2007). International consensus criteria are used for diagnosis.
- Frontotemporal Dementia (FTD): Accounts for 10-15% of dementia cases (Dementia UK Report 2007). The Lund-Manchester criteria or NINDS criteria are used for diagnosis.
- Other types of dementia make up a small percentage of cases.
Alzheimer's Disease (AD)
- Characterized by dementia, gradual progression, intact consciousness, onset after age 40, and no other identifiable cause (NINCDS/ADRDA Criteria).
- Cognitive decline progresses over time, eventually leading to severe impairment and death.
Vascular Dementia (VaD)
- Dementia is present, along with cerebrovascular disease, focal stroke signs (neurological exam), and impairment in memory and at least one other cognitive domain.
- Evidence of relevant cerebrovascular disease (CVD on CT/MRI scans) is also required.
- Onset may be within three months of a stroke, or progression may be abrupt or stepwise.
Dementia with Lewy Bodies (DLB)
- Shows progressive cognitive decline affecting daily functioning.
- Requires two of the following: fluctuating cognition, recurrent visual hallucinations, spontaneous Parkinsonism (motor features).
- Supportive features are repeated falls, syncope, neuroleptic sensitivity, paranoid delusions, and hallucinations in other senses.
Frontotemporal Dementia (FTD)
- Characterized by insidious onset and gradual progression with early decline in social interaction, personal conduct regulation, emotional blunting, and loss of insight.
Progression of Alzheimer's Disease
- Progression spans a typical 4-8 years (up to 20 years in extreme cases).
- Stages progress from mild (loss of recent memory, faulty judgment) to moderate (personality changes, aggression, agitation, sleep disturbances, delusions) to severe (loss of all reasoning, bedridden, incontinence).
- Death typically results from pneumonia or other comorbidities.
Causes of Dementia
- Biological factors: Chromosomes linked to dementia, altered brain pathology.
- Psychosocial factors: Malignant social psychology.
- Environmental factors: Lifestyle (alcohol, smoking, diet), physical environment (floor patterns, lighting, overstimulation).
Kitwood's Psychological Needs
- Emphasizes the importance of comfort, occupation, attachment, identity, and inclusion in dementia care.
Malignant Social Psychology
- Describes negative interpersonal interactions that can negatively affect individuals with dementia.
- Examples include intimidation, disempowerment, withholding, imposition, outpacing, disruption, infantilisation, objectification, labelling, stigmatisation, disparagement, ignoring, banishment, accusation, mockery, treachery, and invalidation.
Therapeutic Implications of Alzheimer's Disease
- Focuses on preventing onset, slowing progression, and treating symptoms to slow decline.
Prevention of Dementia
- Prevention is better than cure. Lifestyle choices heavily influence the risk.
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Description
This quiz explores the definition of dementia, its prevalence rates, and the various types of dementia, including Alzheimer's Disease. It covers key cognitive impairments and social behaviors associated with this syndrome, as well as statistics related to age and gender. Test your knowledge on this important health topic.