PURPOSE:To evaluate the effect of removal of ligation thread combined adenoidectomy in the treatment of obstructive sleep apnea hypopnea syndrome (OSAHS) after velopharyngeal ring ligation procedure(VRLP).

• 目的:探讨环扎线取出术联合腺样体切除术对腭咽环扎术(VRLP)后阻塞性睡眠呼吸暂停低通气综合征(OSAHS)的治疗作用。