“Z”成形术；后天性前鼻孔狭窄；手术治疗。
对经睡眠监测诊断为OSAHS的318例儿童，所有患者均近一年来无扁桃体炎病史，并已排除鼻中隔偏曲、鼻炎、后鼻孔狭窄、舌体肥大等其他因素所引起OSAHS。
Methods:318 children with OSAHS without antiaditis in the recent one year and without deflection of nasal septum, rhinitis, posterior naris stenosis, tongue body hypertrophy and etc.
例因鼻中隔偏曲导致一侧后鼻孔和鼻咽部无法检查，例因双侧鼻腔狭窄无法检查，其余9例均可检查。
The inspection could not be finished because of stricture of unilateral choana and nasopharynx caused by deflection of nasal septum in cases, and bilateral rhinostenosis in .
例因鼻中隔偏曲导致一侧后鼻孔和鼻咽部无法检查，例因双侧鼻腔狭窄无法检查，其余9例均可检查。
The inspection could not be finished because of stricture of unilateral choana and nasopharynx caused by deflection of nasal septum in cases, and bilateral rhinostenosis in .
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