Velopharyngeal Insufficiency
Velopharyngeal Insufficiency (VI) is the inability to temporarily close the connection between nasopharynx and oropharynx, due to an anatomical dysfunction in soft palate (velum), lateral pharyngeal wall or posterior pharyngeal wall. This can be due to insufficient tissue to accomplish closure, or due to some kind of mechanical interference with closure. An effective sealing between nasopharynx […]