Dementia & delirium Flashcards
Definition of dementia
An acquired and irreversible CNS neurodegenerative process that affects Cognition:
memory, apraxia, agnosia, visual-spatial, aphasia, executive function
what can dementia cause?
Neuropsychiatric symptoms: depression, psychosis, wandering, physically assaultive, sleep disturbances
Epidemiology of dementia
5.4 million Americans with Dementia
13% >60 years of age
50% >85 years of age
every 68 seconds someone is diagnosed with dementia
What is the most common subtype of dementia?
Alzheimers
>50%prevalence among pts w/ dementia
Most common type of dementia
What are two other subtypes of dementia besides alzheimers?
Vascular: 10-20%
Multi-infarct
Lacunar infarct
Mixed Dementia
Lewy Body dementia is what percentage of dementia cases?
10-20% of dementia cases
Parkinson’s Dz has what percentage of dementia?
41% dementia prevalence
Needs to be distinguished from LBD but its very difficult
Frontal temporal dementia
May account for 25% of presenile dementia (<65 yo)
Range of onset 20-80 year old, average 58
Progresses more rapidly than AD
Loss of social boundaries/awareness
What is the hallmark of alzheimers?
Neurofibrillary tangles
3 neurotransmitter deficit found with alzheimers
Acetylcholine
Norepinephrine
Serotonin
Epidemiology of alzheimers
as early as in 4th decade
10% of 70 y/o have AD dementia
>50% of 80 y/o have AD dementia
Risk factors for alzheimers
genetics Age Sex Prior head trauma Education Vascular disease DM HTN Down Syndrome Smoking Sedentary life style Obesity
what are the 3 realm of symptoms associated with alzheimers
emotional
behavioral
perceptual
3 emotional symptoms of alzheimers
Depression
Apathy
Anger
2 perceptual symptoms of alzheimers
Delusions
Hallucinations
Sensory