Changes

Infectious, viral and bacterial causes are thought to exist in cats and dogs but have not been identified as of yet.

Infectious, viral and bacterial causes are thought to exist in cats and dogs but have not been identified as of yet.

Ingestion of these substances causes the disruption of the gastric mucosal barrier. This results in increased permeability, with hydrogen ions and pepsin penetrating the mucosa. An inflammatory response subsequently occurs that may damage blood vessels, resulting in the extravasation of blood and plasma into the gastric lumen. Mucosal erosions can develop due to necrosis of the mucosal epithelial cells.  

Ingestion of these substances causes the disruption of the gastric mucosal barrier. This results in increased permeability, with hydrogen ions and pepsin penetrating the mucosa. An inflammatory response subsequently occurs that may damage blood vessels, resulting in the extravasation of blood and plasma into the gastric lumen. Mucosal erosions can develop due to [[Necrosis - Pathology|necrosis]] of the mucosal epithelial cells.  

Gastritis can cause contraction of gastric smooth muscle which causes spasms and pain. Vomiting is also a symptom following stimulation of nerve endings that connect with the vomiting centre.

Gastritis can cause contraction of gastric smooth muscle which causes spasms and pain. [[Vomiting|Vomiting]] is also a symptom following stimulation of nerve endings that connect with the vomiting centre.

==Signalment==

==Signalment==

===Radiography===

===Radiography===

Abdominal radiographs may be taken if the animal is severely ill and to rule out other causes such as an alimentary foreign body or obstruction.

Abdominal radiographs may be taken if the animal is severely ill and to rule out other causes such as an alimentary foreign body or obstruction.

==Treatment==

==Treatment==

Many different techniques of treating acute gastritis have been described in the literature. In general, therapy is designed to rest the stomach by witholding food and maintaining the animal's fluid , electrolyte and acid/base balance.

Many different techniques of treating acute gastritis have been described. In general, therapy is designed to rest the stomach by witholding food and maintaining the animal's fluid , electrolyte and acid/base balance.