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Old
Age is not a disease!
However,
there are many diseases, syndromes, and other problems that are
seen with increasing frequency as pets become older. Many of these
can be managed to improve your pet’s quality of life, especially
if detected early.
Pets
age much faster than humans. Changes can occur in a short period
of time. For this reason, it is important to have your older pet
examined more frequently. Twice a year is a good place to start.
During a “Geriatric Exam”, the veterinarian will ask
questions about your pets appetite, water consumption, bathroom
habits, ability to get around, mental attitude, and many other things.
The physical exam will include, but not be limited to, listening
to the heart and lungs, examining the eyes, looking in the mouth
and ears, feeling (“palpating”) the abdomen, and a dermatological
exam. We may do a prostate exam in certain male dogs. We will often
recommend certain diagnostic tests. These may include blood tests,
urine tests, radiographs (“x-rays”), and blood pressure
checks, among others. Diagnostic tests allow us to catch some diseases
before there are outward clinical signs, or they may confirm or
exclude suspected problems.
The
following are some disease processes seen in older pets:
Arthritis
Many
older pets develop degenerative joint disease, or arthritis, just
like people can. Often, owners notice that a pet is “slowing
down”, or acting stiff, having trouble with steps, getting
into a vehicle, etc. Are these animals in pain? Some people think,
no, because they aren’t crying or whining. How do people act
with arthritis? They usually do things slower and carefully, and
adjust their activities around the discomfort. That’s what
the animals do, too. And, just like for people, there are many medications
available to help ease the discomfort. (NOTE: never give your pet
medicine made for people without checking with us first. Some human
medicines can be very dangerous for our pets, even in small amounts).
Some supplements may help slow down the degeneration that is occurring
in the joints. These treatments can significantly improve your pets
quality of life. If medications are used to help manage arthritis,
it is important to have your pet monitored regularly for any changes
that may occur in their internal organs, since the kidneys and liver
are important in breaking down these drugs for removal from the
body. If changes are detected, it does not necessarily mean that
we need to discontinue the medication, but we may need to change
the dose or switch to a different type of drug. This is especially
important when animals are on more than one medication for different
problems, as often happens in the older pet.
One
thing to be cautious of regarding arthritis...many other diseases
can also cause an animal to “slow down”. We do not want
to assume automatically that it is arthritis when there may some
other problem occurring that needs to be treated entirely differently.
This is why a full exam with blood tests and radiographs may be
indicated before starting a treatment program.
Cognitive
Dysfunction:
Cognitive
Dysfunction Syndrome is caused by physical and chemical changes
that affect brain function in older dogs, and probably cats too.
These changes can lead to an older pet acting confused, not interacting
with the family as much, having “accidents”, and changes
in their sleep/wake cycle, among others. This is not a part of normal
aging. The first step is to decide if the problem truly is Cognitive
Dysfunction, or if there may be some other cause. In addition to
an exam, we will ask some specific questions regarding your pet’s
behavior, and we may need to do blood tests as well. There are some
medications and supplements that may help reduce or relieve the
symptoms.
Diabetes:
Diabetes
can occur in animals of all ages, but it becomes more frequently
seen as they age. Obesity significantly increases the likelihood
of it developing also. Diabetes Mellitus (or DM) is the scientific
name of “sugar diabetes”. DM occurs when there is an
insufficient amount of insulin in the body. Insulin is a hormone
that is produced by the pancreas. Insulin normally helps transport
glucose (sugar) from the bloodstream into the body’s cells,
where the glucose provides energy for the cellular functions. When
there is not enough insulin, the glucose has a very hard time getting
into the cells, and the sugar level in the bloodstream rises to
dangerous levels. This then effects the entire body in many different
ways. The most common signs that a pet owner notices include an
increase water consumption and urination, weight loss, and initially
an increased appetite, but then the pet may become very ill and
not want to eat as the disease advances. Blood and urine tests help
to diagnose DM. Treatment usually involves injections of insulin
given once or twice daily by the owner. Special diets are often
utilized as well. Monitoring the blood sugar/glucose at the hospital
is needed to regulate the insulin dose and blood sugar level.
Heart
Disease:
Older
pets often develop heart disease. The things a pet owner may notice
include coughing, exercise intolerance, and general weakness. Sometimes
a heart murmur is present, but not always. Radiographs (“x-rays”)
will help us decide how advanced the disease is, and the treatments
that are needed. Blood tests can show if there have been secondary
effects on other organs. Like many diseases, early detection and
prevention is much more effective than treating and advanced case.
Regular check-ups may reveal a murmur or lung congestion before
you notice any obvious signs. Good preventive dental care is also
very important! Many cases of heart disease occur on older pets
because of infections of the heart valves. These infections can
arise from bacteria entering the bloodstream through inflamed gums
when there is periodontal disease. Regular teeth cleanings help
prevent this.
Hyperthyroidism
As cats age,
they often develop a problem with the thyroid gland where too much
thyroid hormone is produced. This increases the metabolic rate of
the body beyond normal. A hyperthyroid cat will often eat ravenously,
but still be losing weight. This is the most frequent sign noticed
by owners that indicates something is wrong. Hyperthyroidism affects
many other systems in the body also, including the liver, the eyes,
the heart, and the kidneys.
The level of thyroid hormones can be measured, which helps to determine
if a cat is hyperthyroid. A general blood chemistry panes is also
important, to see if damage to other organs has occurred.
One treatment option is an oral medication called Tapazole. This
medication helps to control the overproduction of thyroid hormone.
The level often needs to be adjusted based on monitoring of the
thyroid hormone blood levels. Tapazole will need to be continued
throughout the cat’s lifetime.
Another option is a radioactive iodine treatment. This is a permanent
treatment; generally no further medication is needed afterward.
However, the treatment can only be performed at specially licensed
facilities (
http://www.catsvet.com/hyper.html), which makes it more expensive in the short
term. (When compared to Tapazole treatment and monitoring over
several years, the costs can be similar).
A final option is surgery to remove the thyroid gland itself. This
requires referral to a specialty practice. This treatment option
is not very common, as there are increased risks when compared to
the radioiodine treatment, and costs would be similar.
If your cat is found to have hyperthyroidism, we will discuss the
specifics of your pet’s case, and determine which treatment
option is right for you.
Kidney (Renal) Disease (Chronic Renal Failure)
The body makes
many waste products throughout the day. The kidneys filter many
of these waste products from the blood into the urine. As the kidneys
age, sometimes they lose the ability to do this. It is usually a
slow process, worsening as more of the kidney structure becomes
affected. The kidneys need water to filter the wastes. As they become
more inefficient, they need more and more water to try to keep up
with the wastes that are produced. One of the first signs noticed
in the pet is increased water consumption and urination. Sometimes,
pet owners will notice urinary “accidents” in their
pet who has not had a problem before. Over time, the pet will not
be able to drink enough water for the kidneys to eliminate all the
waste, and those wastes will build-up in the body. When the wastes
build-up beyond a certain level, the pet will feel ill (loss of
appetite, nausea, vomiting, etc).
We can measure some of the waste products in the blood, to tell
us how the kidneys are functioning and how advanced the disease
may be. We often need to do urine tests also. If these tests indicate
chronic renal failure, there are certain treatments we can do to
help manage the disease (unfortunately, chronic renal failure is
not curable). By treating with a combination of special foods, medications,
and fluid administration, we can often slow the progress of the
disease, and increase quality of life.
Kidney disease varies greatly between individuals, and each case
will need to be treated differently. If your pet is diagnosed with
kidney disease, be assured that we will work closely with you to
determine the most appropriate treatment regimen.
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