Chronic Gastric Mucosal Inflammation in Dogs (Chronic Gastritis)
- Synonyms: Gastric Mucosal Inflammation
- Occurrence: common
- Location of disease: Abdomen/pelvis
When to visit the vet?
Non-urgent see a veterinarian within 2–3 days
If the condition worsens / symptoms persist, consult a veterinarian.
Definition
Chronic gastritis in dogs is a long-lasting inflammation of the stomach lining that can lead to digestive problems and other health issues.
The most important facts at a glance
Chronic gastritis in dogs is an inflammation of the stomach lining that can be caused by various factors. The most common causes include bacterial infection, especially with Helicobacter spp., long-term use of medications such as NSAID (non-steroidal anti-inflammatory drug), food allergies, stress, and genetic predispositions. Symptoms include Abdominal pain, Vomiting with bloody content, Diarrhea, and general weakness. Diagnosis is made through a combination of medical history, physical examination, blood test, and often an endoscopy with tissue sampling.
Treatment depends on the underlying cause and often includes a dietary change, medications to reduce stomach acid, and antibiotics if needed. The prognosis is usually good if the disease is recognized and treated early. Preventive measures include a balanced diet, stress minimization, and regular veterinary check-ups. Research is investigating genetic and nutrition-related factors as well as the role of the microbiome in the disease. New medications to modulate the immune system and reduce inflammation are also being studied to improve treatment options.
Causes
The stomach lining is a protective layer that shields the stomach from the aggressive effects of stomach acid. In chronic gastritis, this protective barrier is disrupted, leading to persistent inflammation. This inflammation can impair the function of the stomach lining and result in various digestive disorders.
There are several causes of chronic gastritis in dogs. A common cause is infection with certain bacteria, such as Helicobacter spp., which can attack the stomach lining and trigger inflammation. These bacteria are widespread in dogs and are frequently associated with chronic gastritis.
Other possible causes include long-term use of medications, especially non-steroidal anti-inflammatory drugs (NSAIDs), which can damage the stomach lining. Food allergies or intolerances, stress, and other environmental factors can also contribute to the development of chronic gastritis.
Autoimmune diseases, in which the immune system mistakenly attacks the body’s own cells, can also play a role. In some dogs, a genetic predisposition can lead to the development of this condition, predominantly in certain breeds such as the German Shepherd and the Golden Retriever.
Symptoms
The symptoms of chronic gastritis in dogs can vary, but they are often non-specific and can be confused with other digestive tract diseases. The most common symptoms include chronic or intermittent Vomiting, often accompanied by bile. This Vomiting can occur especially in the morning on an empty stomach.
Another common symptom is loss of appetite or a change in eating habits, which can lead to Weight loss. Some dogs show signs of Abdominal pain, which may be expressed by a hunched back or increased Licking of the abdominal area.
Occasionally, dogs with chronic gastritis may also have Diarrhea or constipation. In severe cases, there may be blood in the vomit or stool, indicating more pronounced mucosal damage.
Therapy
Treatment of chronic gastritis in dogs depends on the underlying cause. In many cases, a combination of dietary changes, medication therapy, and, if necessary, treatment of infections or other underlying conditions is used.
A special diet can help soothe the gastric mucosa and relieve symptoms. This includes easily digestible foods that are low in fat and fiber. Hypoallergenic diets can be helpful if food allergies or intolerances are suspected.
Medications such as proton pump inhibitors or H2 receptor antagonists can be used to reduce stomach acid production and protect the lining. In cases of Helicobacter infection, antibiotic therapy may be necessary.
If the cause is autoimmune, immunosuppressants may be prescribed. If medication-induced gastritis is present, it is important to stop or adjust the responsible medications.
Prognosis and follow-up care
The prognosis for dogs with chronic gastritis is generally good if the condition is detected and treated early. Dietary adjustments and appropriate medication therapy can successfully control symptoms in many cases.
In dogs that respond well to treatment, a long-term improvement in quality of life can be achieved. However, relapses can occur, especially if the underlying cause has not been fully resolved or the dog is exposed to stressors again.
In severe or complex cases, especially when the condition is accompanied by other health problems, the prognosis may be less favorable. Ongoing care and monitoring by the veterinarian are crucial to assess the dog’s condition and adjust treatment.
Prevention
Prevention of chronic gastritis in dogs involves several approaches. One of the most important measures is providing a balanced and high-quality diet that meets the specific needs of the dog. Foods containing known allergens or difficult-to-digest ingredients should be avoided.
Minimizing stress through a stable and predictable environment can also help reduce the risk of gastritis. Regular veterinary check-ups are important to detect and treat health problems early.
When administering medications, especially NSAID (non-steroidal anti-inflammatory drug), you should always consult a veterinarian to monitor the dose and duration of treatment. Alternatives to potentially stomach-irritating medications should be considered whenever possible.
Another prevention step is regular deworming and parasite control, as some parasitic infections can contribute to the development of gastritis. Finally, hygiene—especially in multi-dog households—also plays a role in reducing the risk of infection with Helicobacter spp. and other pathogenic organisms.
Outlook on current research
Current research into chronic gastritis in dogs is intensively investigating which genetic and environmental factors influence this condition. Researchers are trying to identify specific genetic markers that could indicate which dogs have a higher risk of developing this disease. In the future, these findings could help develop preventive measures and promote targeted breeding of less susceptible dogs.
Another important area of research is the role of nutrition in the prevention and treatment of chronic gastritis. Scientists are examining how specific feed components—such as prebiotic fibers and certain protein—can protect the gastric mucosa and reduce inflammatory reactions. Clinical studies are currently testing diets developed specifically for dogs with chronic stomach problems to evaluate their effectiveness and long-term effects.
Medical research is also investigating the effects of new medications that modulate the immune system and can specifically reduce inflammatory reactions in the stomach. These medications could be an alternative or addition to conventional treatments, which often rely on acid blockers and anti-inflammatory drug. The development of such targeted therapy could significantly improve the quality of life of affected dogs.
Another promising area of research is the study of the microbiome in the gastrointestinal tract of dogs. Researchers are analyzing how the balance of microorganisms in the gastrointestinal tract influences the development and course of Chronic Gastritis. Initial studies suggest that an imbalance in the microbiome could promote inflammatory conditions, while restoring a healthy microbiome may have protective effects.
In the long term, research into chronic gastritis in dogs could also have implications for treating similar conditions in humans. Since many mechanisms of inflammation and immune response are similar in dogs and humans, breakthroughs in veterinary medicine could also inspire new approaches in human medicine. Interdisciplinary exchange between human and veterinary medicine is therefore of crucial importance.
Frequently Asked Questions (FAQs)
1. What is chronic gastritis in dogs?
2. What are the most common symptoms?
3. How is the diagnosis made?
4. What Treatment Options are Available?
5. Can chronic gastritis be cured?
6. How can nutrition help?
7. Are certain breeds more susceptible?
8. Can stress or environmental factors make the condition worse?
9. How does chronic gastritis affect quality of life?
10. What can I do to help my dog?
Literature
- Spużak, J., Jankowski, M., Kubiak, K., Glińska-Suchocka, K., & Ciaputa, R. (2020). A modified Sydney system for the diagnosis of chronic gastritis in dogs. Acta Veterinaria Scandinavica, 62, Article 44. https://doi.org/10.1186/s13028-020-00542-2
- Çolakoğlu, E. Ç., Börkü, K., Haydardedeoğlu, A. E., Alihosseini, H., Şenel, O. O., Yumuşak, N., Özen, D., Baş, B., & Uğurlu, L. (2017). Correlation between endoscopic and histopathological findings in dogs with chronic gastritis. Journal of Veterinary Research, 61(3), 351–355. https://doi.org/10.1515/jvetres-2017-0046
- Amorim, I., Taulescu, M. A., Day, M. J., Catoi, C., Reis, C. A., Carneiro, F., & Gärtner, F. (2016). Canine gastric pathology: A review. Journal of Comparative Pathology, 154(1), 9–37. https://doi.org/10.1016/j.jcpa.2015.10.181
- Lidbury, J. A., Suchodolski, J. S., & Steiner, J. M. (2009). Gastric histopathological abnormalities in dogs: 67 cases (2002–2007). Journal of the American Veterinary Medical Association, 234(9), 1147–1153. https://doi.org/10.2460/javma.234.9.1147
- Amorim, I., Smet, A., Alves, O., Teixeira, S., Saraiva, A. L., Taulescu, M., Reis, C. A., Haesebrouck, F., & Gärtner, F. (2015). Presence and significance of Helicobacter spp. in the gastric mucosa of Portuguese dogs. Gut Pathogens, 7, Article 12. https://doi.org/10.1186/s13099-015-0057-1
- Ali Shabestari, A. S., Jamshidi, S., Mohammadi, M., Sasani, F., Bahadori, A., & Oghalaie, A. (2008). Assessment of chronic gastritis in pet dogs and its relation with Helicobacter-like organisms. Pakistan Journal of Biological Sciences, 11(11), 1443–1448. https://doi.org/10.3923/pjbs.2008.1443.1448
- Cândido, M. V., Syrjä, P., Hanifeh, M., Lepajõe, J., Salla, K., Kilpinen, S., Noble, P.-J. M., & Spillmann, T. (2021). Gastric mucosal pathology in Belgian Shepherd dogs with and without clinical signs of gastric disease. Acta Veterinaria Scandinavica, 63, Article 7. https://doi.org/10.1186/s13028-021-00570-6
- Simpson, K. W. (2013). Diseases of the stomach. In R. J. Washabau & M. J. Day (Eds.), Canine and feline gastroenterology (pp. 606–634). Elsevier Saunders.
- Spużak, J., Jankowski, M., Kubiak, K., Glińska-Suchocka, K., & Ciaputa, R. (2020). A modified Sydney system for the diagnosis of chronic gastritis in dogs. Acta Veterinaria Scandinavica, 62, Article 44. https://doi.org/10.1186/s13028-020-00542-2
- Çolakoğlu, E. Ç., Börkü, K., Haydardedeoğlu, A. E., Alihosseini, H., Şenel, O. O., Yumuşak, N., Özen, D., Baş, B., & Uğurlu, L. (2017). Correlation between endoscopic and histopathological findings in dogs with chronic gastritis. Journal of Veterinary Research, 61(3), 351–355. https://doi.org/10.1515/jvetres-2017-0046
- Amorim, I., Taulescu, M. A., Day, M. J., Catoi, C., Reis, C. A., Carneiro, F., & Gärtner, F. (2016). Canine gastric pathology: A review. Journal of Comparative Pathology, 154(1), 9–37. https://doi.org/10.1016/j.jcpa.2015.10.181
- Lidbury, J. A., Suchodolski, J. S., & Steiner, J. M. (2009). Gastric histopathological abnormalities in dogs: 67 cases (2002–2007). Journal of the American Veterinary Medical Association, 234(9), 1147–1153. https://doi.org/10.2460/javma.234.9.1147
- Amorim, I., Smet, A., Alves, O., Teixeira, S., Saraiva, A. L., Taulescu, M., Reis, C. A., Haesebrouck, F., & Gärtner, F. (2015). Presence and significance of Helicobacter spp. in the gastric mucosa of Portuguese dogs. Gut Pathogens, 7, Article 12. https://doi.org/10.1186/s13099-015-0057-1
- Ali Shabestari, A. S., Jamshidi, S., Mohammadi, M., Sasani, F., Bahadori, A., & Oghalaie, A. (2008). Assessment of chronic gastritis in pet dogs and its relation with Helicobacter-like organisms. Pakistan Journal of Biological Sciences, 11(11), 1443–1448. https://doi.org/10.3923/pjbs.2008.1443.1448
- Cândido, M. V., Syrjä, P., Hanifeh, M., Lepajõe, J., Salla, K., Kilpinen, S., Noble, P.-J. M., & Spillmann, T. (2021). Gastric mucosal pathology in Belgian Shepherd dogs with and without clinical signs of gastric disease. Acta Veterinaria Scandinavica, 63, Article 7. https://doi.org/10.1186/s13028-021-00570-6
- Simpson, K. W. (2013). Diseases of the stomach. In R. J. Washabau & M. J. Day (Eds.), Canine and feline gastroenterology (pp. 606–634). Elsevier Saunders.