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Poodle health is a growing concern for breeders
and options for testing are becoming more
available and precise to track t our lines. Some
health related issues are more common in the
Standard Poodle, but I feel you should be
educated on all issues, because you never know
when it might pop up in your breed.
Below are just a few issues I recommend getting
to know about. For more information, please
check our links page under Health Related.
For more information on Poodle Health, we
recommend checking
the
Poodle Club of America website found on our
links page.
Addison's
disease is also known as hypoadrenocorticism. It
is an insufficient production of adrenal
hormones by the adrenal gland. Since these
hormones are essential for life, this is an
extremely serious disease and it must be treated
as such.
Adrenal insufficiency can be
primary or secondary. Primary adrenocorticism
affects salt/potassium balance in the body and
glucorticoid as well. Secondary adrenocorticism
usually only affects the glucocorticoids. It is
not known why primary adrenocorticism occurs but
it may be an immune mediated process. Secondary
adrenocorticism probably occurs most often when
prednisone or other cortisone being administered
for medical reasons are suddenly withdrawn. It
can occur as a result of pituitary cancer or
some other process that interferes with
production of hormones that stimulate the
adrenal glands.
Most dogs with Addison's
disease initially have gastrointestinal
disturbances like vomiting. Lethargy it also a
common early sign. Poor appetite can occur as
well. These are pretty vague signs and it is
extremely easy to miss this disease. More severe
signs occur when a dog with hypoadrenocorticism
is stressed or when potassium levels get high
enough to interfere with heart function. Dogs
with this problem will sometimes suffer severe
shock symptoms when stressed, which can lead to
a rapid death. When potassium levels get high
heart arrythmias occur or even heart stoppage
which also is fatal. In some cases, especially
secondary Addison's disease, there are no
detectable electrolyte changes.
This disease can be picked
up by changes in the ratio between sodium or
potassium by accident at times. When this
happens it is still extremely important to treat
for it. It is confirmed by an ACTH response test
-- administration of this hormone should
stimulate production of adrenal hormones. If
this does not occur then hypoadrenocorticism is
present. In cases in which the electrolyte
levels are normal this is the only test for the
problem and it will be missed unless it is
looked for specifically. At times this disease
can be hard to differentiate from renal failure
because the symptoms and even the blood work can
be similar, so the ACTH response test may be
necessary to differentiate them.
The normal
stomach sits high in the abdomen and contains a
small amount of gas, some mucus, and any food
being digested. It undergoes a normal rhythm of
contraction, receiving food from the esophagus
above, grinding the food, and meting the ground
food out to the small intestine at its other
end. Normally this proceeds uneventfully except
for the occasional burp.
In the bloated stomach, gas
and/or food stretches the stomach many times its
normal size, causing tremendous abdominal pain.
For reasons we do not fully understand, this
grossly distended stomach has a tendency to
rotate, thus twisting off not only its own blood
supply but the only exit routes for the gas
inside. Not only is this condition extremely
painful but it is also rapidly life-threatening.
A dog with a bloated, twisted stomach (more
scientifically called "Gastric Dilatation and
Volvulus") will die in pain in a matter of hours
unless drastic steps are taken.
Chronic active
hepatitis is a liver disease where there is
inflammation of the liver and death of liver
tissue present. Dogs that are affected with this
disease develop a slow, progressive liver
failure. Researchers have found in some breeds a
familial predisposition to the disease. In
Bedlington Terriers, the disease has been found
to be the result of an autosomal recessive gene,
and there is a marker test from Vetgen to test
for it. In Dobermans, the disease seems to
affect more females than males.
Symptoms of the illness
usually don’t appear in the dogs’ early years,
not until there is significant damage to the
liver. Usually CAH appears around 5-7 years of
age. Some of the early signs of CAH are loss of
appetite, vomiting, diarrhea, vomiting yellowish
bile, weight loss, depression, increased water
intake, increased urination, and sluggishness.
As the disease gets worse, jaundice may appear
(the whites of the dogs eyes will appear
yellowish), and clotting problems may occur.
Fluids can build up in the abdominal area, so
that a dog may look like it’s in whelp.
Behavioral changes may occur, such as the dog
might stand and stare at the wall, or in a
corner, or just stand and be confused. All of
this is due to toxins that have built up in the
body that used to be metabolized by the liver.
In some breeds copper will
build up in the liver. This will vary from breed
to breed. Copper will be stored in larger than
normal amounts in the liver./p>
YYearly blood screening is
always important to the health of your dog. To
have a yearly baseline to judge future blood
tests can prove to be valuable in assessing the
health of your dog. One of the first signs of
liver trouble would be an elevated ALT. To
further define liver problems, a vet will
usually perform a liver biopsy. This would give
a definite diagnosis of CAH. This would
determine to what extent the liver is damaged as
well as establishing copper levels, if any. A
vet will often do a guided needle biopsy, with
the assistance of an ultrasound, to visualize
the area of the liver in to determine which area
to biopsy. This test is usually accompanied by
bile acids tests before and after to complete a
correct diagnosis.
Dogs can often be treated
with medications and special diet, depending on
how damaged the liver is when diagnosed with
CAH. The dog will never be cured but can be
maintained for a time if the condition is caught
early and treated properly. Each dog’s case will
vary.
There are 3 forms of Cushings Disease.
Most dogs have the more common form, Pituitary
Dependent PD, with this form the dogs have a
slow growing form of cancer that is located in
the pituitary gland. This causes the adrenal
glands to produce to much cortisol, because the
tumor trigger to much ACTH to be produced.
The next form is the Non
Pituitary, here there is a tumor in one or both
of the adrenal glands. Here also to much
cortisol is produced as a result of the tumor.
The tumor is often malignant. The malignant
tumor is called an Adenocarcinoma and it is
aggressive where it can spread to other parts of
the body and organs. The non cancerous tumor is
called Adenoma.
The last form comes from
Pets being on long dosages (long term use of)
"Cortisone" , a drug used often on Pets. This
drug comes in many forms. No matter what form it
comes in it can cause problems with long term
usage of this medication. This long term usage
makes the body think it has more cortisone in
the body that it does and then the body misreads
the actual amount there is in the body.
There are many warning signs
of Cushings. Some of the more common ones are:
excessive appetite, drinking large amounts of
water, frequent urination, large pot belly, Thin
skin, hair loss on the body, thinning of hair
and drastic change of texture of hair. This is
usually seen in older dogs, but can begin much
earlier in life. It can be very slow in
progressing. There are tests to tell you if your
dog has Cushings. If you suspect it. Call your
vet and get proper testing done to get a correct
diagnosis.
Ears should be cleaned weekly. Trim the
long hairs level with the ear canal regularly,
do not pull the hairs this can cause bleeding in
the cannel that can be undetected at the time
and cause infection in the canel. Swab the ear
canal with your finger wrapped in cotton
moistened with ear cleaner recommended by your
Vet or Groomer. If the puppy is scratching its
ears or the ears have a bad odor, see your vet
immediately.
Seizures in dogs can be caused by a variety of
factors. A common cause of seizures in all
varieties of Poodles (as well as 25 or 30 other
breeds) is "idiopathic epilepsy." Idiopathic
epilepsy generally is inherited, and it can
result in either mild or severe seizures.
Sometimes, seizures involve episodes of unusual
behavior, such as running frantically as if
being chased, staggering, or hiding in the
bathroom. Although seizures can be frightening
to watch, the long-term prognosis for dogs with
idiopathic epilepsy generally is very good.
Importantly, however, many other factors can
cause seizures in dogs besides idiopathic
epilepsy. Causes include a variety of metabolic
disorders (such as liver disorders), infectious
diseases that affect the brain (such as
distemper), tumors, exposure to poisons, severe
head injuries, and more. The prognosis for
seizures due to these other disorders varies
depending on the particular disorder and how
early it is diagnosed. Thus, when a dog begins
to have seizures, it is very important for the
dog to receive a thorough diagnostic work-up to
determine the cause.
Testing for thyroid
malfunction is obtained by taking a blood
sample. Females should be tested after sexual
maturity and the blood tested between heat
cycles. Most laboratories can do T-3 and T-4
screening. Complete thyroid testing includes:
TT4, TT3, FT4, FT3, T4AA, T3AA, TGAA and cTSH,
OFA Thyroid Registry Panel, FT4D, cTSH and TgAA.
OFA further notes: “No
specific causes of LCPD are known, although it
is believed to have a genetic mode of
inheritance, and is not believed to be caused by
trauma alone. Because there is a genetic
component, it is recommended that dogs affected
with LCPD not be used in breeding programs.
In an effort to assist
breeders in establishing control programs to
limit the prevalence of the LCPD, the OFA is
offering a new health database specific to LCPD.
The OFA evaluations and the subsequent database
of information will allow breeders to make more
informed breeding decisions. With time as the
database becomes more populated, statistical
data regarding prevalence and improvement will
be an added benefit. The LCPD database will
operate in a similar fashion to the existing OFA
database for hip dysplasia evaluations.”
Patellar luxation is the dislocation (slipping)
of the patella (kneecap). In dogs the patella is
a small bone that shields the front of the
stifle joint. This bone is held in place by
ligaments. As the knee joint is moved, the
patella slides in a grove in the femur. The
kneecap may dislocate toward the inside (medial)
or outside (lateral) of the leg. This condition
may be the result of injury or congenital
deformities (present at birth). Patellar
luxation can affect either or both legs
The most common occurrence
of luxating patella is the medial presentation
in small or miniature dog breeds. Shallow
femoral groove, weak ligaments and mal alignment
of the tendons and muscles that straighten the
joint are all conditions that will predispose a
dog toward luxating patellae. Indications of
patellar luxation are; difficulty in
straightening the knee, pain in the stifle,
limping, or the tip of the hock points outward
while the toes point inward.
Grade 1: Intermittent
patellar luxation - occasional carrying of the
affected limb. The patella can easily be
manually luxated at full extension of the
stifle, but returns to proper position when
pressure is released.
Grade 2: Frequent patellar
luxation - in some cases luxation is more or
less permanent. The affected limb is sometimes
carried, although the dog may walk with the
stifle slightly flexed.
Grade 3: Permanent patellar ation - even
though the patella is luxated; many animals will
walk with the limb in a semi-flexed position.
GraGrade 4: Permanent patellar
luxation - the affected limb is either carried
or the animal walks in a crouched position, with
the limb partially flexed.
PRA is inherited, meaning
the disease genes that cause PRA are passed from
generation to generation. In Toy and Miniature
Poodles one specific type of recessively
inherited PRA predominates, although there are
clues indicating at least one more type is
present at a low frequency in the breed. This
predominant form of PRA in Toys and Miniatures
is the progressive rod-cone degeneration (prcd)
form of PRA. Rod cells in the retina slowly lose
normal function, resulting in diminished vision
in dim light situations and diminished field of
vision. Subsequently, cone cells in the retina
lose normal function, resulting in diminished
vision in daylight situations and eventual total
blindness. The age of onset and the rate of
disease progression are variable among different
breeds, within the same breed and within the
same litter. In general for Toys and Miniatures,
diagnosis of prcd-PRA made around 3 years of
age, based on an eye exam by a veterinary
ophthalmologist. Some prcd-PRA affected dogs
retain some useful vision throughout their life,
while others progress to blindness in mid-life.
Unfortunately there is no treatment or cure for
PRA.
A genetic test, offered by
OptiGen, is used to identify Toys and
Miniatures as Pattern A – normal, Pattern B –
probably carrier, and Pattern C – probably
affected. Within the first 1000 Toys and
Miniatures tested by OptiGen, 3-4% are Pattern C
and 25-30% are Pattern B. Use of this test for
breeding programs is discussed at OptiGen’s
website. Identification of breeding animals
affected with prcd-PRA or carriers of prcd-PRA
is essential to avoid producing affected
offspring. This genetic test is not offered for
Standard Poodles, since prcd-PRA is not yet a
proven cause of blindness in Standards.
Not all retinal disease is
PRA and not all PRA is the form currently
detectable in your breed. Accurate diagnosis is
essential. A dog can test as normal or carrier,
yet be affected by a different type of PRA.
Although more than one type of retinal
degeneration probably occurs in every breed, by
far the most common type of PRA for Toys and
Miniatures is prcd-PRA.
YeaYearly eye examinations for
general eye health should be done on breeding
dogs by a veterinary ophthalmologist, even after
testing by OptiGen. The Canine Eye Registration
Foundation (CERF) maintains a registry.
Optic Nerve Hypoplasia is a congenital
faliure if development of the optic nerve which
causes blindness and abnormal pupil response in
the effected eye. Maybe unable to differentiate
from micropapilla on a routine (dialated)
screening ophthalmoscopic exam. Micropapilla is
a small optic disc which is not associated with
vision impairment. For more information see The
Canine Eye Registration Foundation (CERF)
website.
This is a major problem in our breed. It is
estimated that 50% of all Standard Poodles are
carriers or affected. It is hard to ID and can
be misdiagnosed as hypothyroidism, allergies,
etc. All breeding animals should have a skin
biopsy preformed by a veterinary yearly and
analyzed by a recognized veterinary
dermapathologist. The Orthopedic Foundation For
Animals maintains a
registry for SA tested Poodles. On its web
site OFA lists the names and addresses of
approved dermapathologists and laboratories as
well as the procedures for submitting a sample
for analysis currently, there is no cure. Help
stamp out this problem by testing your poodle,
be it pet or breeding animal.
Von
Willebrand's disease (vWD) is an inherited
bleeding disorder. It is a complex and difficult
disorder to deal with, because genetics,
diagnostic abnormalities, pathogenic mechanisms,
and sometimes conflicting clinical signs are all
involved. The commonality between all vWD is a
reduction in the amount or function of von
Willebrand factor (vWF), which is manifested
through abnormal platelet function and prolonged
bleeding time. Different breeds exhibit
different variations of the disease, and some
individual animals appear to "acquire" vWD. The
organizations dealing with this topic is
Vetgen.
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