EN
The aim of the study was an endoscope and histological evaluation of gastric mucosa in dogs and cats presenting signs of dyspepsia in order to determine their Helicobacter infection status. Endoscope examinations were performed on two groups. Group I included 19 dogs and 5 cats of various breeds and sex aged between 10 months to 13 years presenting poorly expressed signs of dyspepsia. Group II comprised 23 dogs and 5 cats of various breeds and sex aged between 1-14 years presenting distinct signs of dyspepsia. All animals underwent gastroscopy during which the macroscopic appearance of gastric mucosa was evaluated and biopsy specimens were collected for further histological research. Inflammation of corpus and pylorus gastric mucosa was evaluated using the Sydney histological classification. According to this classification the intensity of macroscopic gastric mucosa lesions in group I was classified as: no lesions (6 cases - 5 dogs, 1 cat) and slightly intensified changes (18 cases 14 dogs, 4 cats); group II demonstrated moderately intense changes (16 cases - 12 dogs and 3 cats) and distinctly intense changes (13 cases - 11 dogs and 2 cats). The histopathology examination of gastric mucosa samples in all dogs and cats facilitated the diagnosis of chronic gastritis. The study demonstrated that the Sydney System of evaluating gastric mucosa inflammatory changes can be used gastroscope examinations in dogs and cats.