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目的:研究清醒状态下阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者与正常健康人在磁共振(MRI)上的上气道参数差异和阻塞平面情况。方法:OSAHS患者和正常健康人各20例,进行MRI检查和测量。结果:①.OSAHS组RP区,RG区气道截面积明显小于对照组(p<0.01);②.OSAHS组RP区、RG区、EPG区气道前后径/左右径(AP/LR)比值均明显大于对照组(p<0.05);③.OSAHS组RP区、RG区、EPG区咽侧壁厚度均明显大于对照组(p<0.05);RG区,EPG区咽后壁厚度明显大于对照组(p<0.01);④.OSAHS组软腭长度、厚度和截面积均明显大于对照组(p<0.05);⑤.95%的OSAHS患者在清醒状态下即可见上气道阻塞平面。70%的OSAHS患者为多平面阻塞,阻塞多发生于软腭后区。结论:OSAHS患者上气道参数与正常健康人有显著性差异。软腭后区是OSAHS患者上气道最狭窄的部位。
Aims: To study the differences in upper airway parameters and occlusion planes in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS) and healthy controls under awake conditions. Methods: OSAHS patients and normal healthy people in 20 cases, MRI examination and measurement. Results: ①The airway cross-sectional area in RP and RG of OSAHS group was significantly smaller than that of control group (p <0.01); ②The AP / LR ratio of RPA, RG and EPG in OSAHS group (P <0.05) .③The thickness of pharyngeal side wall in RP, RG and EPG in OSAHS group was significantly larger than that in control group (p <0.05). The thickness of posterior pharyngeal wall in RG area and EPG area was significantly larger than that in control group (P <0.01) .④The length, thickness and cross-sectional area of soft palate in OSAHS group were significantly larger than those in control group (p <0.05) .⑤Of 95% of OSAHS patients, upper airway obstruction plane was seen in awake state. 70% of OSAHS patients with multi-planar obstruction, occlusion occurred in the soft palate area. Conclusion: There are significant differences in upper airway parameters between OSAHS patients and healthy controls. The posterior soft palate is the narrowest part of the upper airway in patients with OSAHS.