Swallowing and respiration are well-coordinated and interdependent functions. When one of these processes is impaired, the consequence may be negative for the other. This article describes the mechanisms of the disorders of swallowing, the effects of tracheotomy or intubation and mechanical ventilation on swallowing, and the procedures used to assess and treat perturbation of swallowing. Combining a basic understanding of these concepts with practical management can increase safe and efficient oral intake in patients after artificial ventilation.