METHODS: The patients were treated by modified UPPP which maintained the normal anatomic form of pharyngeal cavity, reserved the uvula, performed oblique straight incision along palatoglossal arch to soft palate, and avoided the incision of inverse U type. 方法:改良传统悬雍垂腭咽成形术手术方法,维持咽腔正常生理解剖形态,保留悬雍垂,沿腭舌弓切口向软腭方向做斜行直切口,避免倒U型切口。