[Pyloric stenosis in the dog: developments in its surgical treatment and retrospective study in 47 patients].

Diagnosis and treatment of pyloric stenosis in the dog are described. The most common causes in 47 dogs were hypertrophic and functional pyloric stenosis. These conditions were mostly seen in young, male dogs of brachycephalic breeds. In contrast with the literature no indications were found for a predisposition in miniature breeds. Hypertrophic stenosis was treated successfully with the Fredet-Ramstedt pyloromyotomy. Functional stenosis and hypertrophic gastritis were mainly treated with the Heineke-Mikulicz pyloroplasty; good results were obtained in more than half of the cases.