Effects of flexible fiberoptic endoscopy on pharyngeal swallow physiology.

Objective: The purpose of this study was to determine if the presence of a flexible fiberoptic endoscope in the pharynx affects swallow physiology.

Study Design: This was a prospective cohort study.

Subjects And Methods: Fourteen individuals with normal swallow function, 23 to 83 years of age, completed a videofluoroscopic swallow study with and without a 3.