MANAGEMENT OF DEMENTIA Jonathan T. Stewart, MD Professor in Psychiatry University of South Florida...
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![Page 1: MANAGEMENT OF DEMENTIA Jonathan T. Stewart, MD Professor in Psychiatry University of South Florida College of Medicine Chief, Geropsychiatry Section Bay.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649e6b5503460f94b69ab1/html5/thumbnails/1.jpg)
MANAGEMENT OF DEMENTIA
Jonathan T. Stewart, MDProfessor in Psychiatry
University of South Florida College of Medicine
Chief, Geropsychiatry Section
Bay Pines VA Medical Center
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DEMENTIA
Affects 10% of Americans over 65 Fourth most common cause of death Only 10% of cases are reversible or
arrestable
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DEMENTIA: BEHAVIORAL PROBLEMS
Present in 80% of cases Major source of caregiver stress,
institutionalization Common at all stages of the disease Much more treatable than the
underlying dementia Poorly described in the literature
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THE DEMENTIA WORKUP
Thorough history Physical examination Mental status examination Blood work Neuroimaging study
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70% degenerative dementia 20% vascular dementia 10% other
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POSTROLANDIC Memory deficits Aphasia Apraxia Agnosia Personality
preserved MMSE valid
FRONTAL/SUBCORTICAL Memory deficits Loss of goal-oriented behavior,
behavioral plasticity Personality changes
– Disinhibition– Abulia
Incontinence MMSE useless
TWO TYPES OF DEMENTIA
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FRONTAL/SUBCORTICAL CIRCUITS
Frontal cortex
Striatum
Pallidum
Thalamus
Subcortical white matter
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THREE SYNDROMES
Loss of goal-oriented behavior (dorsolateral prefrontal circuit)
Abulia (anterior cingulate circuit) Disinhibition (orbitofrontal circuit)
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Don’t miss this one:
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DIFFUSE LEWY BODY DISEASE
Postrolandic dementia– More rapidly progressive than AD– Fluctuation, episodes of “pseudodelirium” common
Mild parkinsonism– Tremor often absent– Poor response to antiparkinsonian meds– Shy-Drager sx’s common
Prominent psychotic sx’s, esp visual hallucinations
SEVERE NEUROLEPTIC INTOLERANCE
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NEUROLEPTICS AND DLBD Most patients have severe reactions to
neuroleptics, including severe akinesia, dystonias and NMS-like syndromes
Increases LOS in 81%; reduces lifespan in 50% (McKeith et al, 1992)
Doubles rate of cognitive decline (McShane et al, 1997)
A severe, unexpected reaction to low-dose neuroleptics is highly suggestive of DLBD
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MEDICATIONS FOR ALZHEIMER’S DISEASE
Donepezil Rivastigmine Galantamine
Memantine
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A TYPICAL STUDY
-3-2.5
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0 12 24 36 52 60
study week
ne
t c
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MS
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Drug X
Placebo
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BEWARE!
As it appears in the paper
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weeks
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Drug X
Placebo
The whole story
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0 14
weeks
AD
AS
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Drug X
Placebo
Effect of 14 weeks drug X treatment in mild or moderately severe Alzheimer’s disease
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MANAGEMENT
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WOOF.
MEDS OTHER
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THE BEST NUMBER OF MEDICATIONS TO USE IS
ZERO (or sometimes one)
WHEN IN DOUBT, GET RID OF MEDICATIONS!
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THREE BASIC PRINCIPLES
STRUCTURE LIMITED GOALS THE “NO-FAIL” ENVIRONMENT
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“THE CUSTOMER IS ALWAYS
RIGHT!”
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SOME “NO-FAIL” TECHNIQUES
Remove challenges from the environment Don’t correct unless absolutely necessary Distract, change the subject Always help the patient save face The “universal mistake” technique Validation therapy
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DEPRESSION
15-30% incidence in Alzheimer’s disease Often early in the course of the illness Sometimes previous personal or family
history of depression Most important treatable cause of excess
disability Responds very well to treatment
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TYPICAL SYMPTOMS OF DEPRESSION
Mood symptoms “Cognitive” symptoms Vegetative symptoms
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OTHER POSSIBLE SYMPTOMS OF DEPRESSION Anxiety Fearfulness Somatization Excessive complaining, requests for
help (Kunik et al, 1999)
“Personality change” Screaming (Greenwald et al, 1986; Cohen-
Mansfield et al, 1990)
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DEPRESSION: TREATMENT
Selective serotonin reuptake inhibitors Tricyclics Other agents ECT
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AGITATION
Present in 40-80% of patients Up to 34% of patients are combative Few predictors It is unusual for medications to be
dramatically effective
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ACUTE BEHAVIOR CHANGE I atrogenic
I nfection
I llness
I njury
I mpaction
I nconsistency
I s the patient depressed?
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“SUNDOWNING”
4 PM 2 AM
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MANAGING SLEEP DISTURBANCE
Increase time cues (“Zeitgebers”) Aerobic exercise Restrict caffeine and alcohol Restrict naps Manage incontinence, pain Keep the room cool and quiet Don’t forget the night-light Hypnotics (NOT ANTIHISTAMINES!)
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CATASTROPHIC REACTIONS
“A substantive emotional reaction precipitated by task failure.” (Goldstein, 1952)
Responds well to a “no-fail” environment, but not really to meds
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RESISTIVENESS
Common in patients with severe dementia or frontal/subcortical disease
LIMIT GOALS Slow, gentle approach “As soon as we do this, I’ll leave you
alone.” Premedication with lorazepam may help
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PSYCHOTIC SYMPTOMS IN DEMENTIA
50% incidence, esp. in moderate dementia
Includes:– Delusions (usu. theft, jealousy or “living in
the past”)– Hallucinations (usu. “phantom boarder”)– Reduplicative paramnesia– Misidentification of mirror, TV, etc.
MEDS ARE OFTEN NOT NEEDED
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MANAGING PSYCHOSIS Rule out acute decompensation Is it really a psychosis? Is treatment really necessary? Try non-pharmacologic techniques first Try to stick to low-dose atypicals (mainly for
delusions); don’t use anticholinergics Goals of therapy are quite modest Try to dechallenge neuroleptics every three
months
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COMMON SIDE-EFFECTS OF TYPICAL NEUROLEPTICS
Parkinsonian symptoms Akathisia Neuroleptic malignant syndrome Tardive dyskinesia Functional decline Cognitive decline
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ATYPICAL NEUROLEPTICS
Clozapine Risperidone Olanzapine Quetiapine Ziprasidone Aripiprazole
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DISINHIBITION
Mostly in frontal/subcortical disease Use antecedent control and
environmental manipulation, not operant conditioning
Can use anticonvulsants, propranolol, other agents for aggression
Can use SSRI’s or antiandrogenics for sexual disinhibition
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SCREAMING
Seen in severely demented patients Multifactorial:
– RESTRAINT– Pain, discomfort– Sensory deprivation– Depression (?)
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EMPIRICALLY EFFECTIVE MEDS FOR AGITATION
Anticonvulsants Atypical neuroleptics (best when
agitation is clearly related to psychosis) Trazodone Buspirone Lorazepam, oxazepam
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MORE HEROIC OPTIONS
Lithium Beta-blockers Narcotics Estrogens Typical neuroleptics ECT
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THE BEST NUMBER OF MEDICATIONS TO USE IS
ZERO (or sometimes one)
WHEN IN DOUBT, GET RID OF MEDICATIONS!
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WANDERING
Up to 2/3 of patients Can lead to serious injury or death Four types:
– Exit seekers– Self stimulators– Akathisiacs– Modelers
(Hussian, 1987)
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WANDERING: MANAGEMENT
Manage sleep disturbance aggressively Discontinue neuroleptics if possible Exercise, stimulation, outdoor time Alarms Visual barriers Locks (consider fire hazard, though) Medicalert bracelet, police registry, etc.
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DON’T FORGET SAFETY ISSUES!
DrivingDrivingFirearmsFirearmsPower toolsPower toolsSmoking in bedSmoking in bedPoisons, medicationsPoisons, medicationsFall riskFall risk
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WOOF!
MEDS OTHER
GOOD LUCK!