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Small Intestinal Bacterial Overgrowth (SIBO) and Pancreatic Insufficiency

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When a dog or cat is afflicted with exocrine pancreatic insufficiency (EPI), the animal’s body is unable to break down and absorb the nutrients in the foods he or she eats. Affected animals will lose weight; have loose, foul-smelling stools; and have a much greater appetite. This is because the animal is, essentially, starving to death.

 

The main focus of treatment for this condition includes the life-long use of enzyme replacements in the animal’s food. Because multiple secondary issues could develop due to this disease condition, you and your veterinarian will need to closely monitor your pet for the remainder of his or her life.

 

One such potential problem in animals with EPI is a condition called small intestinal bacterial overgrowth (SIBO). It is commonly seen in dogs with EPI and can complicate treatment unless it is recognized and brought under control. Cats are more often afflicted with irritable bowl disease than SIBO.

 

What Causes SIBO?

 

Small intestinal bacterial overgrowth develops when the bacteria that are already present in the intestinal tract are given the opportunity to use the undigested material passing through the intestine as fuel to grow and thrive. The food that isn’t being absorbed by the animal is being “eaten” by the bacteria, which leads to a population explosion.

 

The overgrowth of “bad” bacteria in the gut of animals with EPI leads to even greater problems with the function of the intestinal tract. Motility is disrupted and watery (secretory) diarrhea can develop. Toxins are produced by the expanding numbers of bacteria, which can cause severe damage to the intestinal cells. If not treated rapidly, permanent digestive disorders and even food intolerances can result from SIBO.

 

Deficiencies with EPI and SIBO

 

If your pet has pancreatic insufficiency, he or she will eventually develop deficiencies in certain vitamins, especially the fat-soluble vitamins like A, D, E, and K. Because vitamin K is an important part of the mechanism that causes blood to clot, deficiencies in this particular vitamin can bring about bleeding problems in animals, particularly cats, with EPI. Cats are also prone to developing folate (a B vitamin) deficiencies.

 

Vitamin B12 (cobalamin) is commonly deficient in animals with SIBO. This is because the bacteria that build up in the small intestine are able to take in this particular vitamin easily and use it. In fact, a deficiency in B12 is one sign of secondary SIBO in animals already diagnosed with EPI. This particular deficiency must be corrected in order for an animal with EPI to respond to treatment and survive.

 

 

Comments  2

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  • Dog with EPI
    07/11/2014 01:32pm

    I just registered today on this site. My Border Collie / Greater Swiss Mountain Dog mix was Dx'd with EPI in 2009, three months after I adopted him from a rescue without knowing he had this disease. I am very impressed with the information about EPI in the articles printed here. I found it very difficult to find a vet who knew anything about EPI, much less knew how to treat it. Through three months of online research I found a support group dedicated to learning about this horrible disease. I want to point out that if your dog experiences the symptoms outlined in these articles, you will undoubtedly feel overwhelmed. But I encourage you to hang in there and keep asking questions and brainstorming with your vet. Sometimes we need to help educate our vets about EPI, as not much is taught about it in vet schools unless your vet is a specialist in internal medicine and gastroenterology. My dog was 18 months old when I got him. He is now nearly 8 years old. After much trial and error that first year, he became stable and has remained so since. EPI does not have to be a death sentence. If we educate ourselves, EPI can be successfully managed. Thanks to PetMD for these very thorough and informative articles. Hint: grain-free food is a must!

  • 07/16/2014 04:55pm

    What were the symptoms for your dog? My 13.5 lab is having very loose, foul stools on grain free dogfood.. I just completed a GI panel and fasting blood work for B12, folate and others. I am awaiting the vet's call but they aren't being so speedy about it. My dog is a dear and I hope to determine why her stools are loose and foul smelling. At the moment she is on metrodonizole and I am making ground turkey and turkey and they have finally firmed up pretty well. . Any thoughts from your experience? 9 months ago her folate level was high normal, B12 was normal.Thanks a lot!
    Karen


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