将所有患者行日间的肺功能检测(脉冲振荡法ios)，检测通气功能及气道阻抗等多个参数。
All patients with snoring and sleep apnea were evaluated pulmonary function used impulse Oscillation technique (IOS).
结论IOS法测定呼吸阻抗是判断气道阻塞的敏感指标，可以代替FEV 1判断COPD患者的气道阻塞程度。
Conclusion IOS determine respiration impedance is a sensitive marker of judgement air velocity obstruction, it can replace FEV1 judge the degree of COPD patients airway obstruction.
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