Canine Cushing’s Disease: Symptoms, Treatment

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Canine Cushings Disease: Symptoms, Treatment

Cushing’s Disease or Cushing’s Syndrome as it is sometimes called, is also known as hyperadrenocorticism.

Excessive thirst and frequent urination are signs of four serious canine medical problems, including diabetes, kidney problems, liver disease and Canine Cushing’s Disease.

Regrettably, not treating Cushing’s Disease could precipitate the others.

After running basic tests, your veterinarian has eliminated the first three, leaving Cushing’s Disease as the diagnosis.


What is Canine Cushing’s Disease?

Cushing’s Disease in dogs or Cushing’s Syndrome as it is sometimes called, is also known as hyperadrenocorticism.

Due to the fact older dogs are more prone to tumors, is most often found in middle age and senior dogs.

That does not mean younger dogs are immune to it. This disease can be managed, but not cured.

Causes of Canine Cushing’s Disease

The adrenal glands are two small, triangular-shaped endocrine glands located on top of the kidneys. They are orange in color and covered in a connective tissue capsule that is hidden in a layer of fat.

These glands are made up of two parts – the adrenal cortex (outside) and the adrenal medulla (inside). The adrenal glands work together with the pituitary gland and hypothalamus in the brain for the overall health and functioning of your dog.

The disease is caused by the over production of cortisol, a natural steroid hormone. It is normally released in response to stress or low levels of blood glucororiticoids. The primary functions are to increase blood sugar, metabolize fat, proteins, and carbohydrates and suppress your dog’s immune system.

There are three known origins Cushing’s. They are: tumors, lactrogenic or “veterinary induced Cushing’s” from the over use of glucorticoid drugs (steroids i.e. Prednisone, Prednisolone, Hydrocortisone, etc.) and Andrenocorticotophic hormone (ACTH) also produced by the pituitary gland.

The majority of time, the source of the disease is a hyperactive pituitary gland, which is found at the base of the brain. Approximately 85% of Cushing’s in dogs, is from a minute benign tumor on the pituitary gland.

In the other 15% of cases, it may be caused by a tumor on one or both of the adrenal glands, which are located in front of the kidneys. Approximately 50% of these tumors are benign.

Maintaining adrenal balance is key to promoting health in your furry friend.

Signs and Symptoms – What You Should Watch For

There are more than a few signs and symptoms of Cushing’s Disease in dogs, including: extended belly, excessive thirst, frequent urination, accidental urination in the house, increased appetite, weight gain, excessive shedding, baldness, shortness of breath, lethargy, seeking cooler places to sleep, loss of muscle mass, hypertension, excessive panting, appears anxious/restless, delayed wound healing, thin skin, easy bruising, and mood swings.

For some, they are reluctant to jump on or off furniture. Coat changes such as brittleness and dullness are also an indication.

Dogs suffering from Cushing’s are prone to ear, skin and urinary tract infections.

What Breeds Get Cushing’s Syndrome?

Canine Cushings Disease: Symptoms, TreatmentAll breeds and ages are at risk. Middle age and seniors more so.

Breeds that appear most predisposed to Canine Cushing’s Disease are: Beagles, Boston Terriers, Boxers, Dachshunds, German Shepherds, Golden Retrievers, Jack Russells, Labrador Retrievers, Poodles Scottish and Yorkshire Terriers.

It is believed females may be slightly more at risk to it. Spayed and neutered dogs are thought to be more inclined than intact animals.

Signs and symptoms of cushing’s syndrome frequently begin appearing when the animal is approximately 10 years or older. The sooner the owner suspects and acts, the better it is for their pet.

How is Cushing’s Disease in Dogs Diagnosed?

Starting with basic blood tests used for a baseline, there are a number of tests that can be done to help diagnose Canine Cushing’s Disease.

The ACTH Simulation Test uses the initial blood test as a baseline. Your dog is then injected with ACTH, andrenocorticotophic hormone, to stimulate the glands to release their hormones.

A dog will have a greatly elevated level of cortisol. The elevated level of cortisol is then measured and compared to the baseline. This test cannot differentiate between pituitary and adrenal Cushing’s.

  • The Urine Cortisol/Creatinine Ratio Test can rule out Cushing’s.
  • The Low Dose Dexamethasone Suppression Test is the most recommended and has shown the best results to diagnose Cushing’s.
  • The High Dose Dexamthasone Suppression Test is used to differentiate which type, pituitary or adrenal Cushing’s.
  • MRIs and CAT Scans are also used to detect and check on the progress of this disease.

Is Cushing’s Disease in Dogs Treatable?

Yes, but be aware, there is no cure. There are options to help make your pet more comfortable and improve the quality of their life.

These treatments for Canine Cushing’s Disease include:

1. If your dog is a senior, and suffers from arthritis, or other serious health issues, it may be best to leave them alone. At their age and in their condition, the treatments may be too stressful.

2. Chemotherapy can be used for both pituitary and adrenal tumors.

3. Radiation is most frequently used on pituitary tumors.

4. Surgery is most often used to remove adrenal tumors, as they are usually larger. Only experienced veterinary surgeons, should do this surgery.

5. Medications: Some have serious side effects for the dog. Caution should be used by you, when handling Lysodren!

  • Lysodren, the most common medication prescribed for pituitary tumors. Serious side effects have been known. Periodic ACTH Tests are needed when using this medication. Should not be handled by pregnant women. Surgical gloves should be worn when handling. Wash hand thoroughly!
  • Anipryl is a psychotropic drug, whose various side effects have been found to have some positive effects on Cushing’s.
  • Ketoconazole is an anti-fungal medication whose side effects have been found to have various positive effects on Cushing’s.
  • Vetoryl is an adrenosuppressant. The British have encouraging reports on its safety and effectiveness.

6. Gradually reducing and eliminating the amount of steroids your dog has been prescribed by your veterinarian, can treat Lactrogenic or “veterinary induced Cushing’s.” This allows the glands to return to their normal function.

Canine Cushings Disease: Symptoms, Treatment7. Natural remedies can help Cushing’s Disease in Dogs. Cushex Drops contains a blend of natural ingredients specially selected to target adrenal health and balance in pets, as well as help address the symptoms and causes of Cushing’s Disease.

* Each ingredient in this natural remedy plays a specific role in maintaining adrenal function; maintaining normal fluid and electrolyte levels; and supporting the health and integrity of the coat and skin.*

Cushex Drops are easy to administer, and the serving can be adjusted to suit pets of all sizes.

Learn more about Cushex Drops now.

What Happens if Cushing’s Disease is Left Untreated?

As mentioned, there is no cure for Cushing’s Disease in Dogs, but depending on the age and general health of your dog, it can be managed.

If left untreated, your dog may develop diabetes, hypertension, seizures, congestive heart failure, blood clots, pancreatitis, liver and/or kidney failure.

The Bottom Line

Canine Cushing’s Disease is serious. Considering the age and general health of your dog, as well as progression of the disease, plus sufficient research and talking not only to your veterinarian, but getting a second opinion, will aid you in making a responsible decision as to what you consider the best treatment for your pet.

Knowing there is no cure, your conclusion will be focused on providing them with the finest quality of life, for whatever time you have to share together.

About the author

Karen A. Soukiasian, GOOD DOG! – DOG TRAINING and BED-n-BISCUITS dog boarding and training – Owner/Trainer, St. Augustine, Florida – AKC CANINE GOOD CITIZEN and S.T.A.R. PUPPY Evaluator http://www.freewebs.com/gooddogsite
http://www.facebook.com/pages/GOOD-DOG-DOG-TRAINING/95917282486

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