The liver is an essential part of the body’s digestive system and filters toxins by way of the portal vein. As a matter of fact, the liver gets 25% of the cardiac output and supplies about 77% of the blood supply through the portal vein. Once the blood gets to the liver through the portal vein, it branches out into smaller veins, which take it through even smaller channels to go through the liver.

If your dog has portal hypertension, eventually the body will develop new veins to pass by the liver rather than go through the resistance in the liver. These new vessels do not remove toxins and other waste from the body as it would if it went through the liver, and they go into the esophagus, where they will eventually cause the vessels to burst because of the pressure. Your dog will show signs of liver damage such as yellowing of the skin and eyes and fluid accumulation, among other symptoms. If you suspect your dog has portal hypertension you should see your veterinarian right away.

High blood pressure in the portal vein to the liver (portal hypertension) is elevated blood pressure in the large vein going from the intestine to the liver. It can also affect the veins from the spleen, stomach, and pancreas going to the liver. There are three types of portal hypertension, which are prehepatic, intrahepatic, and posthepatic. This disorder may be caused by liver damage from other disorders and can lead to swollen veins in the esophagus, rectum, umbilicus, and stomach, which is a life threatening complication.

 

 

Your dog’s veterinarian will need to do a complete thorough physical examination including blood pressure and body temperature. You should also be prepared to give the veterinarian as much information about your dog’s symptoms and when they started. The veterinarian will also need your dog’s complete medical history, including all dietary and physical changes as well as changes in shampoos or soap. The veterinarian will also run some tests on your dog. Some of these tests are:

If these tests are inconclusive or show signs of a problem that needs clarification, the veterinarian will run some more tests to verify his suspicions. These tests are:

The main thing the veterinarian will be concerned with is treating the complications, such as fluid retention and electrolyte imbalance. Your veterinarian will probably hospitalize your dog to reduce the fluid built up in the abdomen with diuretic medication. It is essential to watch your dog and give him fluid therapy while he is initially treated so there is no dehydration. The overall treatment depends on the cause of the portal hypertension.

No matter what the cause of the portal hypertension, the first thing you have to do is to change your dog’s diet. Low sodium high quality food and extra vitamins prescribed by your veterinarian are essential to the health of your dog. Additionally, be sure to keep all of your follow-up appointments with the veterinarian and give your dog the medication exactly as prescribed.