What is Dementia?
Symptoms and
Problems of Dementia
Natural
Course of Dementia
Medical Problems
Associated with Dementia
Caring for a Person
with Dementia
Choosing a Nursing Home
In the Nursing Home
What is Dementia?
Dementia is the loss of mental
abilities and most commonly occurs late in life. Of all
persons over age 65, 5-8% are demented. This percentage
increases considerably with age. Twenty-five to 50% of
people over 85 are affected (Table1).
-
Prevalence of Dementia
(Table 1)
-
- Over Age
65 5-8%
- Over Age
75 15-20%
- Over Age
85 25-50%
The most common form of dementia,
Alzheimer�s disease, accounts for 50-75% of all cases of
dementia. Another 20-30% is due to blood vessel disease
(“multi-infarct dementia” or “mini-strokes”). The remaining
cases result from a variety of less common disorders.
Symptoms and Problems of Dementia
The affected person sometimes
recognizes the first signs of dementia. Often family or
friends first detect the problem. Typical early symptoms
include memory loss, and difficulty performing complex
tasks. A person may mislay items, become lost while driving,
get confused in the middle of a conversation or lose a prior
ability to balance a checkbook. As the condition progresses
the deficits become more pronounced and interfere further
with daily activities (See Table 2)
-
Symptoms of Dementia
(Table 2)
-
- Marked
Loss of Memory for Recent Events
-
- Loss of
Ability For Abstract Thought, Planning And
Doing Complex Tasks
-
-Trouble with Cooking, Paying
Bills, Driving
-Can�t Understand Books, Movies
or News Items
-
- Difficulty
Finding Common Words And Names
-
-Substitution of Approximate
Phrases (“Where is the thing for
sweeping?” for �broom�)
-Misidentifying People
(Confusing sister with
[deceased] mother)
-Use of “Empty Phrases” (“You
know”, “That thing”)
-
- Difficulty
Inhibiting Behavior
-
-Impulsivity, �Thoughtless�
Comments, Socially Inappropriate
Behaviors
What is the natural course of
dementia?
Depending on the cause of dementia,
the course may vary. In the case of Alzheimer�s disease, the
time between first obvious symptoms, through gradual loss of
cognitive abilities, to death ranges from 7 to 10 years.
Vascular dementia which usually results from the blockage of
small blood vessels in the brain, often has a more erratic
course, at times with stepwise exacerbation that parallels
the destruction of different parts of the brain.
As the dementia progresses, the person
may require increasing care by friends, family members or
institutions
- In the past, Harry
had been a very competent driver. Recently, He has
become lost several times while driving, and has had
several accidents because he can�t keep track of
traffic patterns. Despite this Harry becomes irate
when his wife tells him he can�t drive. He demands
to use his car, insisting that it is his right to
drive it.
- After washing her
hands, Kathy left the water running in the bathroom
and flooded the house. Lately, she has stopped doing
any cooking since she finds that she can�t remember
how to cook favorite recipes that she has prepared
for years. Last week the police called her daughter
after Kathy became lost while walking to the
neighborhood market.
Unfortunately these problems are often
quite frustrating for the afflicted person and alarming to
her family. The frustrations can lead to her becoming
irritable or demanding, particularly if she doesn�t remember
that she has a problem. She may resent being told that she
can�t do things she has “always” done.
At times dementia can produce a degree
of paranoia, since the affected individual sees those whom
she relies on “taking over” her control. She may attribute
the disappearance of mislaid items to her care provider
stealing her possessions or money.
Despite these changes, people with
moderately severe dementia can often engage in many usual
activities, particularly if they are not expected to
function at a very high level. Readily manageable activities
might include attending a backyard barbecue or picnic;
helping to repot houseplants, drying the dishes or being
taken for a ride in the country.
Many people retain a considerable
degree of social skills. For example laughing at a joke
(often because everyone else is laughing, not because she
understands it). She may carry on a conversation, but
respond in stereotyped and vague ways with empty phrases
(“My, my! Isn�t that something! You know, it�s just like
that.”)
While some rare forms of dementia
don�t progress (e.g. dementia resulting from a head injury),
the course is usually a relentless decline in functioning.
When dementia becomes severe, a person may require much help
with personal care, such as toileting, bathing, dressing and
feeding. Finally the person becomes totally dependent on his
caregivers, loses the use of language and is largely unaware
of his bodily functioning or his environment.
Medical Treatments for Dementia
Depending on the cause of the
dementia, there are different treatments available. For
example if the cause of dementia were severe hypothyroidism,
the treatment would be thyroid hormone replacement.
Until the past few years there was
little that could be done to alter the course of Alzheimer�s
disease. Currently there are a few medications that have
been shown to afford (at most) a modest transient benefit.
The cholinesterase inhibitors (Aricept� (donepezil) and
Cognex� (tacrine) help some individuals. For more
information see our article,
Turning Back the Clock on Dementia
Caring For a Demented Person
Because of the intensity of care that
may be required, it is often difficult for even a loving
family to provide all the “around the clock” care that a
demented relative may need. If friends or family wish to
provide these services it is very important for them to be
aware not only of the demented person�s needs, but also of
their own needs. It is not uncommon for a spouse or children
to feel that they have an impossible choice between being
utterly overwhelmed (if they try to provide all the care) or
feeling they are betraying their relative (if they send them
to a nursing home). This often leads to the care provider
becoming exhausted. Because of this it is often helpful to
investigate local resources to help the care provider (Table
3).
-
Local
Resources
(Table 3)
-
-Publicly or Privately paid
temporary care (relieves primary
care giver to do errands or just
“get away for a while”).
-Friends and relatives often
provide this even when they are
unable or unwilling to share
primary care responsibilities.
-
-Private programs that provide a
safe, structured setting that
helps maintain functioning in
the affected relative (also
respite for the care giver)
-
-Private individuals or
non-profit organizations
maintain houses and provide care
for one or more impaired persons
(person must generally be able
to perform most self-care
functions).
-
- Meals on
Wheels
- Case
Manager and Service Coordinator
-
-In recent years a number of
people, often social workers,
assist the families of
cognitively and/or physically
impaired persons with
identifying and coordinating
needed services
Choosing a Nursing Home
There are frequently exceedingly good
reasons why a demented person must move to a nursing home.
Usually this happens later in the illness. Generally it
because his or her care needs or behaviors exceed the
abilities or resources of their family or friends to care
for them at home. This may include the need for skilled
nursing care (e.g. treatment of infected ulcers) or behavior
that requires physical intervention (e.g. agitation or
violent conduct, wandering off, falling).
The decision to move a person into a
nursing home is often wrenching. The demented person may not
wish to go into a nursing home and may become outraged or
frightened when the decision is mentioned. Or he may agree
with the decision when the reasons are explained to him,
only to oppose it later, when he has forgotten the reasons.
There is quite a bit of variation in
the quality of care in nursing homes. It is generally if the
demented person�s friends or family visit the prospective
nursing homes. It is important to ask about the number of
staff members per resident, the qualifications of the staff
(aids, nurses) and the presence and frequency of services by
support personnel (physician, activities
therapist/coordinator, podiatrist). See how other residents
are being treated (Do they appear clean and groomed? Does
the staff seem to be overworked and impatient or pleasant
and respectful toward residents). Talk to family members of
other residents you see there and inquire about their
experiences.
Unfortunately, the cost of living in a
nursing home is quite high. In general, the better staffed
nursing homes cost more, Another consideration is that once
a person uses up their money, they are eligible for Medical
Assistance (Medicaid) to pay for their nursing home
expenses. This requires that if the person has no spouse,
most of their assets must be liquidated and used to pay
nursing home expenses before they can receive Medical
Assistance. This leaves nothing to reimburse relatives who
may have undergone the expense of caring for that person
previously. Even if the resident�s spouse is still alive,
Medicaid qualification will leave only their home (if they
have one) and a limited amount of the commonly owned assets.
Naturally this may alter considerably the financial means of
the non-institutionalized spouse. Some families consider
“sheltering asset” by transferring the demented person�s
property to another family member prior to the move to a
nursing home. The ethics of circumventing the law must be
considered, as well as the legal requirement that this be
done at least 3 years before application for Medical
Assistance.
In the Nursing Home
Once a demented person has moved to a
nursing home, it is not uncommon for her to take several
weeks to get used to the new place. She may become more
confused in the new setting, and may even become more
agitated. Often the care that a resident gets depends on how
the staff views them and their family. It helps to visit
frequently and to get to know the staff. Making frequent
visits (or even phone calls) and asking reasonable,
respectful questions show that the family is concerned about
the welfare of their resident family member. This generally
improves staff treatment of that resident (Some families
find that small presents to the staff help motivate them
toward this end).
Summary
Dementia is a serious illness that
requires much help from a person�s friends, family and
society to manage. The eldest segment of our population is
now the fastest growing group in the United States. As
people live longer, and as the “baby boom” generation ages,
dementia is increasingly likely to affect us directly or
indirectly at some point in our lives. The purpose of this
article is to help provide an introduction to some common
aspects of dementia. While research is progressing to
understand the causes of dementia and to develop more
effective treatments, it remains a significant challenge for
us to deal with.
See our articles on:
Couples and Aging
Anxiety in the Elderly
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Related Links
- Depression in the elderly. This
is a fact sheet from the National Alliance for the
Mentally Ill.
www.nami.org/helpline/elddepres.htm
- Seniors Internet Resource Center
This site lists a large number of links which may be of
interest to seniors. Because of its breadth, some of the
links may be more interesting than others.
www.ageofreason.com
-
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This article, from “Compassionate Friends” discusses the
unique feelings a grandparent might feel after the death
of a grandchild.
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