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目的：探讨软腭、舌根舌体低温等离子消融配合咽黏膜减张缝合治疗中、重度阻塞性睡眠呼吸暂停低通气综合征（OSAHS）的有效性。方法38例中度及42例重度OSAHS患者行软腭、舌根舌体低温等离子消融，将咽腭弓折返减张半荷包式缝合于扁桃体窝内，术前及术后6个月行睡眠监测、爱泼沃斯嗜睡量表（ESS）调查及咽腔测量。结果80例患者均在术后6个月嗜睡状况改善，咽腔前后径、左右径扩大；睡眠结构得到明显改善。结论咽黏膜减张缝合有效避免了咽腭弓术后撕裂、咽部黏膜重新松弛塌陷；软腭、舌根舌体低温等离子消融配合是治疗OSAHS的有效方法之一。“,”Objective To explore the efficacy of low-temperature plasma combined with pharyngeal mucosal relaxation suture to reduce the volume of soft palate and tongue in patients with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods A total of 38 moderate and 42 severe OSAHS cases underwent low-temperature plasma ablation of the soft palate and tongue,combined with relaxation suture of posterior arch in the fossa.Their sleep was monitored, Epworth Sleepiness Scale (ESS)was filled and pharyngeal cavities were measured before operation and 6 months after operation.Results All patients’sleep was significantly improved.The diameters of the pharyngeal cavity were en-larged.Conclusion Pharyngeal mucosal relaxation tension suture can effectively prevent tear and collapse.Combined with low-temperature plasma ablation in the soft palate and tongue,it is one of the effective methods in the treatment of OSASH.