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Cirrhosis in Dogs

Posted October 23, 2011 in Dog Diseases & Conditions A-Z

Overview
Cirrhosis is chronic, end-stage liver disease in which normal liver tissue has been replaced by fibrous scar tissue. Your dog needs approximately 20% of normal liver function to survive. When cirrhosis occurs, scar tissue replaces functioning liver cells. If normal liver function falls below 20%, the disease becomes terminal. Cirrhosis can occur in dogs of any age, but is most common in middle-aged or older dogs. Some breeds such as cocker spaniels, Doberman pinschers, and Labrador retrievers are more commonly affected by it.

Cirrhosis occurs as a result of damage to the liver by many diseases, drugs, or toxins. Common diseases that may lead to cirrhosis include cancer as well as viral, bacterial, and fungal infections that cause hepatitis (inflammation of the liver). Certain toxins and long-term use of some medications, such as corticosteroids and common pain-relieving medications, can also cause cirrhosis. Therefore, it is crucial to have your dog’s liver function monitored when on certain medications.

Symptoms
Symptoms will depend on the cause of the cirrhosis, and may include:

Diagnosis/Treatment
Your veterinarian will take a complete history and perform a thorough physical exam of your pet. Additionally, diagnostic tests will be required to identify if your dog has liver cirrhosis. These may include:

  • Chemistry tests to evaluate kidney, liver, and pancreatic function, as well as sugar levels
  • Serologic tests to identify if your pet has been exposed to tick-related or other infectious diseases
  • A complete blood count (CBC) to rule out blood-related conditions
  • Electrolyte tests to ensure your pet isn’t dehydrated or suffering from an electrolyte imbalance
  • Urine tests to screen for urinary tract infection and other disease
  • A thyroid test to determine if the thyroid gland is producing too little thyroid hormone
  • Abdominal and chest radiographs (x-rays) to evaluate the liver
  • Abdominal ultrasound to evaluate the internal organs
  • Coagulation profiles to assess your pet’s clotting function
  • A liver biopsy

Treatment for your dog will vary depending on the underlying cause of the liver damage and cirrhosis. The good news is that treating the underlying cause of cirrhosis can, in many cases, stop the progression of the damage.

Treatment may include

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