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探讨加用气流阻力负荷(FRL) 状态下流速容量(FV) 曲线检查对初检OSA 患者的意义对象为24 名健康成年男性及21 例男性阻塞性睡眠呼吸暂停(OSA) 患者经整夜多导睡眠仪检查诊断或排除OSA模拟实验结果发现只有同时加上可陷闭管及FRL 时,才出现显著吸气气流受限无FRL时,FV 曲线( 以FEF50/FIF50 比值大于1 为指标) 检查发现OSA的敏感性和特异性分别为33 .3 % 和91 .6 % ,阳性预测率为63 .6 % 加用FRL 时敏感性为76 .2 % ,特异性为75 % ,阳性预测率为72 .2 % 吸、呼气相峰值流速比值及中期峰值流速比值与OSA 严重呈显著相关联合应用加FRL及常规FL曲线检查可能对OSA 患者初筛有较高价值
To investigate the significance of flow-volume (FV) curve examination in patients with newly diagnosed OSA under the condition of FRL. The subjects were 24 healthy adult men and 21 men with obstructive sleep apnea (OSA) After overnight polysomnography to diagnose or exclude OSA simulation results showed that only with the tracheal tube and FRL can be added at the same time, there was no significant limitation of inspiratory flow FRL without FRL (FEF50 / FIF50 ratio greater than 1 for the index) examination found OSA sensitivity and specificity were 33. 3% and 91. 6%, positive predictive rate of 63. 6% with the FRL sensitivity of 76. 2%, specificity of 75%, positive predictive value of 72. 2% absorption, peak expiratory flow rate ratio and the mid-peak flow rate ratio was significantly correlated with severe OSA combined application of FRL and routine F-L curve screening may have higher value of OSA screening