Dysphagia is defined as a swallowing disorder.
Background
Dysphagia develops when the function of, or interaction between, any of the structures involved in the swallowing act is symptomatically impaired. Thus, all diseases and disorders affecting the oral cavity and its boundaries, the pharynx, the esophagus, and the gastric inlet, as well as, in particular, neurological problems and psychiatric disorders, may play a causal role. Dysphagia may occur with or without pain. Painful swallowing is also referred to as odynophagia.
Neurosurgical relevance
Postoperative dysphagia occurs in approximately 20 % of patients undergoing ACDF Procedures; in most cases, it is only temporary[^1].