OSAHS诊断:AG与PSG、头影测量比较研究

Diagnosis of OSAHS: Comparison between result of Apnea Gragh,PSG and Cephalometric Analysis

目的:比较AG监测与多导睡眠监测(PSG)和头颅侧位片头影测量结果,评价几种检查方法对于睡眠呼吸障碍疾病性质、严重程度及阻塞定位诊断的准确性。方法:利用美国杰西AG200系统对36名成年男性阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者行上气道-食道压力监测,将AG结果与PSG结果和头颅侧位片头影测量结果进行对比分析。结果:AG和PSG测得的AHI、最低血氧、阻塞性暂停低通气次数/h无差异;测得的平均血氧、阻塞性暂停次数/h有差异。头颅侧位片头影测量和AG对于主要阻塞平面的判定结果间有差异;头颅侧位片显示的某平面气道最小前后径与AG测得的平均每小时该平面阻塞次数在腭后区呈线性相关,在舌后区无线性相关关系。结论:AG系统具备了便携PSG的功能,能对睡眠呼吸疾病作出准确的初步定性诊断,且能较准确地进行上气道阻塞定性定位。

Objective.. To evaluate the accuracy of methods used in diagnosis of OSAHS by comparing the results of AG with the one of Polysomnography （PSG） and lateral cephalometric analysis. Method： 36 adult male patients with OSAHS underwent whole night monitor by AG200 upper airway-esophagus pressure monitoring system, compared the result of AG with PSG and lateral cephalometric analysis. Result： There is no significant difference in AHI and lowest blood oxygen sat- uration measured by AG and PSG. There is significant difference in AI and average blood oxygen saturation by AG and PSG. The results of the main obstructive level measured by lateral cephalometric analysis and AG has remarkable difference. There shows a linear correlation between the smallest cross section and the obstructive times at the velo-pharynx level, but shows no correlation at the tongue pharynx level. Conclusion： AG is a accurate＇ diagnosis system on detection of sleep respi- ratory events, and it can supply the useful information on the location and nature of upper airway occlusion.