Old Age Psychiatry Flashcards
describe the ABCD of assessing in old age psychiatry
Activities of daily living
Behavioural and psychiatric symptoms
Cognitive impairment
Decline
what symptoms are you assessing for when assessing behavioural and psychiatric symptoms of dementia?
> psychosis > anxiety > agitation > depression > altered circadian rhythm
what are you assessing when looking at the patients cognitive impairment?
> memory - dyspraxia - dysphasia > dysgnosia > dysexecutive functioning
how is dementia diagnosed?
case findings of symptoms suggesting cognitive impairment then a clinical assessment is carried out.
then they are referred to a specialist who confirms. (can do brain scanning)
what is the differential diagnosis with dementia?
> delirium
depression
dementia
describe how delirium may present
> acute and precise onset > disorientation early > fluctuating consciousness > short attention span > disturbed sleep wake cycle > early psychomotor changes
describe how depression may present in the elderly
> abrupt onset > "don't know answers" > fluctuating cognitive loss > short and long term memory loss > insomnia > suicide > agitation > hypochondriasis
how does Alzheimer’s present?
> dysmenesia > dysexecutive functioning > functional impairment > no focal neurological signs > no vascular risk factors
how does dementia with lewy bodies present?
> REM sleep disorder > deficits - attention - frontal executive thinking - visuospatial > fluctuation of symptoms > visual hallucinations
how is Alzheimer’s diagnosed?
T1 weighted MRI if young or an unusual history
> atrophy in the medial temporal lobes
how does frontotemporal dementia present?
> change in behaviour - messy - apathetic - appearance > speech - mutism - echolalia - steryotypy - altered output > neuropsychology - frontal dysexecutive function - memory not severely impaired > neurological signs - Parkinson's later - incontinence - MND - autonomic
what is seen on an MRI in frontotemporal dementia?
cerebral atrophy of the frontotemporal regions (increase in sulci size)
what dementia presents in a stepwise progression?
stepwise progression
how does subcortical dementia?
> gradual deterioration in executive function > mood changes - apathy - irritability > neurological features - falls - seizures > memory stays
what classes of drugs can be used to treat dementia?
> antipsychotics > antidepressants > anxiolytics > hypnotics > anticonvulsants > acetylcholinesterase inhibitors > narcoleptics (controversial)