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目的 :了解体位改变对阻塞性睡眠呼吸暂停低通气综合征 (OSAHS)患者上呼吸道形态的影响。方法 :经PSG确诊的OSAHS患者 31例 ,均为男性。以纤维内镜观察平静呼吸状态下 30°屈颈平卧位、平卧位和侧卧位时上呼吸道各平面形态的变化并照相 ,利用图像分析软件测量不同体位时上呼吸道各平面的横截面积、前后径、左右径 ,比较其差别。结果 :在OSAHS患者中 ,软腭后区上呼吸道横截面积、前后径 ,舌后区横截面积、左右径和前后径的测量值在 3种体位间的差异有统计学意义 ,软腭后区左右径在 3种体位间的差异无统计学意义。结论 :特定体位对患者上呼吸道形态的影响是OSAHS症状加重的基础。
Objective: To understand the influence of postural changes on upper respiratory tract morphology in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: 31 patients with OSAHS diagnosed by PSG were male. The change of each plane shape of the upper respiratory tract under 30 ° flexion neck position, the supine position and the lateral position under calm breathing was observed with fiber endoscope. The image analysis software was used to measure the cross-section of the upper respiratory tract at different positions Area, before and after the diameter, left and right diameter, compare the difference. Results: In the OSAHS patients, there were significant differences in the cross-sectional area, anteroposterior diameter, posterior lingual area, left and right diameter and anteroposterior diameter of the upper palate in the posterior palatopia between the three positions, There was no significant difference in diameter between the three positions. Conclusion: The influence of specific position on upper respiratory tract of patients is the basis of OSAHS symptom aggravation.