Dementia and Alzheimer Disease - Sonoran UCEDD...Epidemiology of Alzheimer’s Less than 10% of all...
Transcript of Dementia and Alzheimer Disease - Sonoran UCEDD...Epidemiology of Alzheimer’s Less than 10% of all...
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Dementia and Alzheimer'Ó Disease
Lynne Tomasa, PhD, MSWCarol Howe, MD, MLS
February 25, 2010Support Coordinator TrainingCo-sponsored by Sonoran UCEDDand AZ DES DDD, District II
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What is Dementia?
Loss of short term memory
Confusion
Not remembering how to do certain tasks: operate appliances
Loss of long term memory
Failure of thrive
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Dementia is…
“A set of symptoms” and not the disease itself. It is characterized by loss of or decline in
memory and other cognitive abilities.
It is caused by various diseases and conditions that result in damaged brain cells.
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To be classified as dementia, the following criteria must be met:
It must include decline in memory and in at least one of the following cognitive abilities: Ability to generate coherent speech or understand spoken or written
language Ability to recognize or identify objects Ability to execute motor activities, sensory function and
comprehension of the required task Ability to think abstractly, make sound judgments and plan and carry
out tasks
The decline in cognitive abilities must be severe enough to interfere with daily life
Alzheimer’s Association, 2009 Alzheimer’s Disease Facts and Figures
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Mild Cognitive Impairment
Problems with memory, language or cognitive function
Severe enough that others notice the problems and it show up on tests
BUT, not severed enough to interfere with daily life
Some people with MCI go on to develop dementia
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Alzheimer Disease OR Dementia of the Alzheimer’s Type
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A Scary Thought
Estimated 5.3 million Americans of all ages have Alzheimer’s disease
This includes 5.1 people aged 65+
Every 70 seconds, someone in America develops Alzheimer’s disease
Due to longer life spans and the aging of the baby boomers, this number is expected to reach 13 million by the year 2050
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Epidemiology of Alzheimer’s
Less than 10% of all Alzheimer’s patients have the rare genetic variant which strikes individuals in their 40’s and 50’s
At age 65, 1-10% of individuals have Alzheimer’s.
Numbers double every five years so that by age 85 as many as 50% of individuals have it.
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Prevalence of Dementia by Age and Sex
Alzheimer’s Association: 2009 Facts and figureshttp://www.alz.org/national/documents/report_alzfactsfigures2009.pdf
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Economic Issues
Psychological comorbidities result in an exponential increase in the cost of Alzheimer disease, both to individual families and to the country as a whole.
Average lifetime cost of caring for an individual with AD is about $174,000.
Average accumulated annual cost of caring for patients with AD, according to Alzheimer’s Association, is estimated to be
$100 BILLION dollars
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Not all Dementia is Alzheimer
MOST COMMON TYPES OF DEMENTIA
Alzheimer disease (60-80%)
Vascular dementia
Dementia with Lewy bodies
Parkinson disease with dementia
Frontotemporal dementia
Reversible dementias
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(Potentially) Reversible Dementias
Dementia secondary to alcohol
Dementia secondary to infectious diseases Syphilis AIDS
Normal Pressure Hydrocephalus
Dementia due to severe B12 deficiency
Dementia due to sever hypothyroidism
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Table 365-1. Differential Diagnosis of Dementia in: Bird, T.D. and Miller, B. L. Dementia in: Fauci, A. S., Fauci, A., STAT!Ref, & Teton Data Systems. (2008). Harrison's principles of internal medicine (17th ed.). New York: McGraw-Hill Medical Pub. Division.
LESS COMMON CAUSES OF DEMENTIAVitamin deficienciesThiamine (B1): Wernicke's encephalopathyB12 (pernicious anemia)aNicotinic acid (pellagra)a
Endocrine and other organ failureHypothyroidismAdrenal insufficiency and Cushing's syndromeHypo- and hyperparathyroidismRenal failureLiver failurePulmonary failure
Chronic infectionsHIVNeurosyphilisPapovavirus (progressive multifocal leukoencephalopathy)Prion (Creutzfeldt-Jakob and Gerstmann-Straussler-Scheinker
diseases)Tuberculosis, fungal, and protozoalSarcoidosisWhipple's disease
Head trauma and diffuse brain damageDementia pugilisticaChronic subdural hematomaPostanoxiaPost encephalitisNormal-pressure hydrocephalus
NeoplasticPrimary brain tumorMetastatic brain tumorParaneoplastic limbic encephalitis
Toxic disordersDrug, medication, and narcotic poisoningHeavy metal intoxicationDialysis dementia (aluminum)
Organic toxinsPsychiatricDepression (pseudodementia)SchizophreniaConversion reaction
Degenerative disordersHuntington's diseasePick's diseaseDementia with Lewy bodiesProgressive supranuclear palsy (Steel-Richardson syndrome)Multisystem degeneration (Shy-Drager syndrome)Hereditary ataxias (some forms)Motor neuron disease [amyotrophic lateral sclerosis (ALS);
some forms]Fronto-temporal dementiaCortical basal degenerationMultiple sclerosisAdult Down's syndrome with Alzheimer'sALS-Parkinson's-Dementia complex of Guam
MiscellaneousVasculitisCADASILAcute intermittent porphyriaRecurrent nonconvulsive seizure
Additional conditions in children or adolescentsHallervorden-Spatz diseaseSubacute sclerosing panencephalitisMetabolic disorders (e.g., Wilson's and Leigh's diseases,
leukodystrophies, lipid storage diseases, mitochondrial mutations)
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10 Signs of Alzheimer’s http://www.alz.org/alzheimers_disease_10_signs_of_aslheimers.asp
1. Memory loss that disrupts daily life
2. Challenges in planning or solving problems
3. Difficulty completing familiar tasks at home, work, leisure
4. Confusion with time or place5. Trouble understanding visual
images and spatial relationships
6. New problems with words in speaking or writing
7. Misplacing things and losing the ability to retrace steps
8. Decreased or poor judgment9. Withdrawal from work or
social activities10. Changes in mood or
personality
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Stages of Alzheimer Disease
A. Early Stage(s)1. Some forgetfulness2. Difficulty with check book3. Trouble with shopping or cooking
B. Middle Stage(s)1. Suspiciousness/Paranoia2. Wandering3. Sundowning (especially restless in the evenings)4. Hypersexuality
C. Late Stage(s)1. Failure to recognize loved ones2. Incontinence3. Difficulty eating4. Sleep all the time
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Criteria for diagnosis:
Memory impairment (decreased ability to learn new information or to recall previously learned information. In Alzheimer Disease, usually the first thing to go is short term memory) AND one or more of the following:
1. Aphasia (language disturbance)2. Apraxia (difficulties with motor activities—such as getting
dressed)3. Agnosia (difficulty recognizing familiar objects)4. Difficulties with executive function such as organizing or
planning. DSM-IV, 2000)
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Diagnostic Tools
1. Screening exams such as the Folstein Mini-Mental Status Exam, SLUMS, or Clock-Drawing Test
2. Imaging test such as an MRI or a PET scan
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Frequently used tools: FolsteinMini-mental Status Exam
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Mini Cog
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Shulman KI. Clock-drawing: is it the ideal cognitive screening test?Int J Geriatr Psychiatry. 2000 Jun;15(6):548-61.
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Diagnostic tools cont’d.3. Lab-work—primarily to rule out reversible
causes of dementia. Check: blood count electrolytes, kidney and liver function, thyroid function, B12 and Folate levels markers for inflammation (sed rate, C-reactive
protein) ? tests for syphilis
4. More extensive neuropsychiatric testing
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Diagnosis can really only be made….
with a brain biopsy (most patients opt out)
www.ahaf.org/alzdis/about/AmyloidPlaques.htm
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Risk Factors for Alzheimer Disease1. Age2. Age3. Age4. Low “brain reserve”
a. “low educational and occupational attainment; low mental ability in early life’’.
b. decreased activity -both mental and physical in later life
5. Head injury
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?
Risk Factors Continued: Same as for Cardiovascular Disease
****
1. ↑ cholesterol (especially during mid life)
2. High blood pressure3. Smoking4. Coronary artery disease5. Obesity 6. Diabetes7. ↑ homocysteine levels
caused by low folate and low B12 levels
Although most other risk factors are the same for AD and CV Disease, women are actually at greater risk for AD while men are at greater risk for CV disease.
I get blamedfor everything!
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How does family history work?
On Chromosome 19, there is a gene called ApolipoproteinE (APOE) which can express itself as APOEe2, APOEe3 and APOEe4. We receive one allele from each of our parents.
APOEe2-protective (least common, of course)
APOEe3- neutral risk ;most common
APOEe4-strongly associated with AD 1allele(heterozous)—3X risk.
2 alleles (homozygous)- 15X risk.
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Percent of Subjects with apoE Alleles with and without AD
Source: Polvikoski T et al. N Engl J Med 1995;333:1242-1247
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Equal Opportunity Genes
Although there is a genetic component, (APOE) why or whether it gets expressed as actual disease
is not understood.
Alzheimer’s is an equal opportunity disease. It does not seem to affect any particular ethnic
group more than another
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Current Clinical Treatment/Drug Therapy
No Cure for Alzheimer Disease (yet)
Most drug treatment aimed at correcting underlying neurotransmitter imbalances. First neurotransmitter targeted: acetylcholine Cholinesterase Inhibitors-approved for mild to moderate AD Donepezil (Aricept)
Galantamine (was Reminyl, now Razadyne)
Rivastigmine (Excelon)
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Current Clinical Treatment/Drug Therapy cont’d
Second neurotransmitter target: NMDA (N-methyl-D-aspartic acid)
Memantine (Namenda)- NMDA antagonist (Approved for moderate to severe AD.) Tends be a little more effective when used in combination with the cholinesterase inhibitors.
There is a lot of research on other neuroactive transmitters and chemicals but that’s all that is officially approved for now.
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Grasping at straws:
Other agents which have been tried but which have little, questionable or no evidence for use: Non-steroidal, anti-inflammatory medications (NSAIDS) Hormones Estrogen Progesterone Testosterone
Nicotine Patches Gingko Biloba Turmeric Melatonin Vitamin E Statins (used to treat ↑cholesterol)
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Treating the Symptoms
Medications aimed at treating accompanying depression, psychosis, agitation, extreme apathy, sleep disorders.
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Non-pharmacological Treatment
Cognitive Therapy
Light Therapy
Yoga
Meditation
Music Therapy
Art Therapy
Horticultural Therapy
Pet Therapy
Physical and Occupational Therapies
Supportive psychotherapy For the patient For the caregivers For the doctors!
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Nutritional Therapies
Emphasis no longer on “tube feeding” formulas to combat the inevitable weight loss of end stage Alzheimer’s.
Some research into micronutrients and “nutraceuticals.” Nothing definitive yet but “our understanding of dietary influences on Alzheimer's disease is in its infancy” (Morris,2004)
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Psychological Issues
Psychological symptoms of Alzheimer’s disease (and other dementias) are soprevalent that, in coding, physicians actually distinguish between
Dementia of the Alzheimer’s Type with behavioral disturbance and Dementia of the Alzheimer’s Type without behavioral disturbance.
The most prevalent of these comorbidities are: Depression-present in 50% of patients with AD (and 99% of their care givers.
Severe depression in elderly used to be called “pseudo-dementia” because it presented so similarly
to AD. Now thought to truly be a precursor of dementia. Delusions and Paranoia-can be present in 40-50% of patients
Most common delusion is that spouse is an impostor or That there are intruders in the home—often “little people”
Aggression-Can be present in 10-65% of patients
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Working with Individuals and
Families
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Situations Affecting Behavior http://www.alz.org/alzheimers_disease_standard_prescriptions.asp
Admission to a hospital
Misperceived threats
Changes in the environment: moving furniture, things,etc.
Changes in caregivers
Changes in one’s daily routine
Moving to a new residence, room, nursing home
Fear and fatigue resulting from trying to make sense of it all
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What Families and Caregivers Can Do
Create a calm environment Avoid noise, glare, minimize background distraction
Simplify the environment, minimize clutter
Redirect behaviors or the person’s attention
Remain flexible, patient and supportive
Avoid being confrontational
Don’t argue about facts – go along with their story
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What Families and Caregivers Can Do (continued)
Maintain a comfortable room temperature
Keep the person with AD comfortable: monitor pain, hunger, thirst, constipation, infections, skin irritations
Allow enough rest between major or stimulating events
Safe proof the environment: lock gates, remove guns
Alzheimer’s Organization
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Signs of Unsafe DrivingAlzheimer’s Association Safety Center
A person with AD will eventually have to stop driving. Monitor the following behaviors that may signal when to stop driving.
Cannot locate familiar places
Fails to observe traffic signals
Makes slow or poor decisions
Drives at inappropriate speeds
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More Signs of Unsafe DrivingAlzheimer’s Association Safety Center
Becomes angry and confused while driving
Hits curbs
Uses poor lane control
Makes errors at intersections
Confuses the brake and gas pedals
Returns from a routine drive later than usual;
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Associations/Advocacy Groups: Alzheimer’s Association
Probably does live up to its claim of being “the world leader in Alzheimer
research and support.” (Out of 53 of the resources listed in MedlinePlus, 19 of
them are actually authored by the Alzheimer’s Association).
They have a vast connection of local networks (see Alzheimer’s Association:
Desert Southwest Chapter) which provide support for caregivers, (including
a 24/7 help line), sponsor conferences, and offer educational programs.
Alzheimer’s Disease International
National Hospice and Palliative Care Organization
Alzheimer’s Foundation of America
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Consumer/Patient Health Information Sites
MedlinePlus: Alzheimer's Disease
The Alzheimer’s Disease Education and Referral Center (ADEAR)
MayoClinic.com: Alzheimer’s Disease
NOAH: Brain and Nervous System: Alzheimer's Disease
The Alzheimer’s Store (An Ageless Design Company)
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References 1
Aarsland, D., Sharp, S., & Ballard, C. (2005). Psychiatric and behavioral symptoms in Alzheimer's disease and other dementias: Etiology and management. Current Neurology and Neuroscience Reports, 5(5), 345-354.
Abraham, I. L. (2006). Dementia and Alzheimer's disease: A practical orientation.The Nursing Clinics of North America, 41(1), 119-27.
Abraham, I.L., Macdonald K. M, Nadzam, M.N. (2006) Measuring the quality of nursing care to Alzheimer’s patients.The Nursing Clinics of North America, 41(1), 95-104.
Administration on Aging. Aging statistics. Retrieved 02/23/2010 from http://www.aoa.gov/AoARoot/Aging_Statistics/index.aspx
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References 2
Alzheimer’s Association: 10 signs of Alzheimer's. Retrieved 02/24/2010 from http://www.alz.org/alzheimers_disease_10_signs_of_alzheimers.asp
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