My Son (2yrs Old) Has A Deviated Uvula. It Deviates

My son (2yrs old) has a deviated uvula. It deviates to the right. He does snore and on occasion gasps for air when sleeping. He does have a deep voice also. His tonsils and adenoids are slightly enlarged. He has been to ENT and uvula went unnoticed. What would cause this and should I be concerned