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目的 探究声反射技术在儿童阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者中的应用价值.方法 收治61例儿童阻塞性睡眠呼吸暂停低通气综合征患者行低温等离子双侧扁桃体切除+内镜辅助下腺样体切除术,利用声反射技术测量患者术前及术后1个月鼻咽容积与咽腔容积,利用多导睡眠监测仪记录实验组术前及术后1个月的呼吸暂停低通气指数(AHI)、阻塞性呼吸暂停指数(OAI)、最低血氧饱和度(LSaO2)并对检测结果进行统计学分析.结果 患者鼻咽容积、咽腔容积、AHI、OAI及LSO2均较术前改善,差异具有统计学意义(P＜0.001).结论 低温等离子双侧扁桃体切除+内镜辅助下腺样体切除术对儿童OSAHS患者有明显疗效,且声反射鼻咽容积、咽腔容积测量在儿童患者中能客观地反映患者的手术前后的差异性,有较好的临床应用价值.“,”Objective To study the application value of acoustic reflection technique in children with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods Endoscopic plasma-assisted bilateral tonsileectomy and adenoidectomy were applied to 61 children suffering from OSAHS.Before operation and one month after operation,acoustic reflection technique was adopted to measure their nasopharyngeal and opharyngeal volumes,and polysomnography to record their apnea hypopnea index (AHI),the number of obstructive apnea and the lowest oxygen saturation.Their results were statistically analyzed.Results The postoperative volumes of nasopharynx and pharyngeal cavity,the AHI,the number of obstructive apnea and the lowest oxygen saturation were significantly improved compared with those before operation.The differences were statistically significant (all P ＜ 0.001).Conclusions Endoscopic plasma-assisted bilatcral tonsillectomy and adenoidectomyhave good therapeutic effect for OSAHS in children.With objective evaluation of the volumes of nasopharynx and pharyngeal cavity,acoustic reflection technique has good clinical application value for OSAHS in children.