摘要
目的 分析慢性阻塞性肺疾病(COPD)、阻塞性睡眠呼吸暂停低通气综合征(OSAHS)及重叠综合征(overlap syndrome)患者气道阻力和睡眠呼吸紊乱的特点。方法 选取已确诊为COPD11例(COPD组)、OSAHS15例(OSAHS组)、重叠综合征4例(重叠组)和健康对照10例(对照组),所有研究对象均行夜间睡眠多导图监测和气道阻力测定,分析各组气道阻塞的部位及程度。结果 COPD组、OSAHS组及重叠组的呼吸总阻抗(Zrs)、呼吸总黏性阻力(R5)、中心阻力(Rc)、周边阻力(RP)均显著高于对照组(均P〈0.05);COPD组及重叠组的Zrs、R5、R5.20、Fres、X5、Re、Rp阻力均显著高于OSAHS组(均P〈0.05);OSAHS组的R20、Rc。均高于COPD组(均P〈0.05)。COPD患者FEV1/Pre%与睡眠效率成正相关(r=0.632,P〈0.05),与觉醒次数、低氧时间和氧减指数成负相关(r值分别为-0.672、-0.868、-0.846,均P〈0.05)。结论 COPD、OSAHS和重叠综合征患者的中心气道阻力和外周气道阻力均有升高;COPD患者以外周气道阻力增加为主,OSAHS患者以中心气道阻力增加为主;重叠综合征患者的呼吸总阻抗,呼吸道总黏性阻力比COPD和OSAHS患者更高。COPD患者夜间睡眠呼吸紊乱程度与病情严重程度的关系密切,其中低氧时间和氧减指数为较好的反映指标。
Objective To study the characteristics of respiratory impedance in patients with chronic obstructive pulmonary disease ( COPD ) , obstructive sleep apnea hypopnea syndrome ( OSAHS ) . Methods The respiratory impedance were measured by Impulse Oscillometry(IOS) technique and polysomnography(PSG) were done synchronously in 11 COPD patients,15 OSAHS patients,4 overlap syndrome patients( COPD + OSAHS) and 10 control group. Results Zrs.R5 .Rc and RP in COPD group,OSAHS group and COPD + OSAHS group were higer than those in control group. Zrs.R5 .R5.20 .Fres. Rc and Rp in COPD group and COPD + OSAHS group were significantly higerthan those in OSAHS group. R20 and Rc in OSAHS group were higher than those in COPD group and control group ( P 〈 0.05 ). Ro in OSAHS group was still significantly higher than that in COPD group ( P 〈 0.05 ). The level of sleep efficiency was positive correlated with FEV1/pre% of COPD( r = 0. 632) ,while the levels of rouse frequence ( r = -0.672) ,time of SaO2 〈90% ( -0. 868) and ODI ( -0. 846) were negative correlated with FEV1/pre% of COPD. Conclusion For OSAHS patients ,there is some dysfunction in peripheral airway tract; For COPD patients, ODI and time of SaO2 〈 90% are good index for the severity of disease.
出处
《中国综合临床》
北大核心
2008年第9期855-857,共3页
Clinical Medicine of China
基金
广东省科技计划社会发展攻关项目(2002C30407)
广东省医学科研课题立项项目(A2002290)