## Overview Pyloric stenosis is narrowing of the outflow from the stomach to the duodenum. It may be congenital in foals or acquired in adults from chronic ulceration or neoplasia. Horses show chronic colic after eating, teeth grinding, excessive salivation, gastric distension, and large volumes of reflux. ## Causes Congenital malformation, scarring from ulcers, or tumor. ## Diagnosis Gastroscopy showing a narrowed pylorus, and large-volume reflux. ## Treatment Surgical bypass (gastrojejunostomy) in selected cases. Medical management of underlying ulceration. Prognosis is guarded. ## Recovery and Prognosis Guarded. Congenital cases in foals and severe acquired stenosis have limited options. ## Prevention Management of gastric ulceration may reduce acquired cases.
chronic colic after eating; teeth grinding; excessive salivation; gastric distension; large-volume nasogastric reflux
## Overview Pyloric stenosis is narrowing of the outflow from the stomach to the duodenum. It may be congenital in foals or acquired in adults from chronic ulceration or neoplasia. Horses show chronic colic after eating, teeth grinding, excessive salivation, gastric distension, and large volumes of reflux. ## Causes Congenital malformation, scarring from ulcers, or tumor. ## Diagnosis Gastroscopy showing a narrowed pylorus, and large-volume reflux. ## Treatment Surgical bypass (gastrojejunostomy) in selected cases. Medical management of underlying ulceration. Prognosis is guarded. ## Recovery and Prognosis Guarded. Congenital cases in foals and severe acquired stenosis have limited options. ## Prevention Management of gastric ulceration may reduce acquired cases.
chronic colic after eating; teeth grinding; excessive salivation; gastric distension; large-volume nasogastric reflux