Vagal esophagomotor nerve function and esophageal motor performance in dogs with congenital idiopathic megaesophagus

Abstract

In dogs with congenital idiopathic megaesophagus, the vagal efferent innervation to the esophagus is likely to be normal, a primary esophageal myopathy is unlikely to be present, and the observed reduction in esophageal motor performance may arise as a secondary consequence of altered esophageal biomechanical properties rather than from a primary neuromuscular abnormality.