Image 1 : Normal open position One of the main risks of uvula excision and UPPP (uvulopalatopharyngoplasty) surgery to treat snoring and obstructive sleep apnea is velopharyngeal insufficiency (VPI). This complication is when the soft palate is not able to adequately lift and close off the back of the nose from the throat. When the VPI is large, food and liquids can come out the nose during swallow and there may be a hyper-nasal speech quality. When the VPI is very small, a patient ma…