Ultrosonogarphic and histological characteristics of the digestive tract in dogs with parvoviral enteritis

Since the clinical manifestation of enteritis of various etiologies has a similar picture, and parvovirus enteritis has a high mortality rate, early diagnosis of this disease is important. A number of publications demonstrate changes in ultrasound parameters during inflammatory bowel diseases. The article is devoted to comparison of ultrasound and histological changes in the wall of the stomach and small intestine with parvovirus enteritis in order to distinguish the most specific ultrasound markers. Object of the study - 53 dogs of mixed breeds of both sexe with a confirmed diagnosis of parvovirus enteritis by polymerase chain reaction in real time from the age of 6 weeks to 7 months. Research were conducted at the Stavropol Veterinary Center named after Pirogov and Veterinary Center of the Stavropol State Agrarian University, by the use of SIUI Apogee 1100 Omni scanner (Shantou Institute of Ultrasonic Instruments Co., Ltd., Guangdong, China), according to the generally accepted method using a multi-frequency linear sensor with a frequency of 5-13 MHz in B-mode. The most characteristic ultrason ic manifestations of canine parvovirus enteritis are hypotension and ectasia of the stomach and loops of the small intestine with the presence of anechogenic fluid content in their cavity; thickening of the surface layer of the mucosa in the form of a hyperechoic strip, a decrease in the ratio of the mucous layer to the entire wall thickness of the duodenum and jejunum by more than 2 times and increased echogenicity of the mucous layer. This picture is a result of the partial necrosis and desquamation of villi, proliferation of cell infiltrate in the mucous layer itself, consisting of lymphocytes, macrophages, a small number of histiocytes and fibroblasts.

ультразвуковое исследование (УЗИ), пищеварительный канал, собаки, желудок, кишечник, парвовирусный энтерит, ultrasonography, alimentary tract, dogs, stomach, intestines, canine parvovirus enteritis

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