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Videoendoscopic evaluation of swallowing (VE) involves inserting a small flexible endoscope transnasally to allow direct observation of pharyngeal and laryngeal structures and swallowing functions. In our NICU infants suspected of severe swallowing dysfunction, VE using normal saline (NS) was performed with the aim of minimizing the detrimental effect of aspiration on respiration caused by VE. This retrospective study was conducted to evaluate the usefulness of VE using NS in NICU infants. We enrolled 28 infants who demonstrated clinica