| 正常中老年520例部分呼气流量—容积曲线探讨 |
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| 引用本文： | 黄桂芳,刘关键.正常中老年520例部分呼气流量—容积曲线探讨[J].华西医科大学学报,1997,28(2):163-166. |
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| 作者姓名： | 黄桂芳 刘关键 |
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| 摘 要： | 对２０－８６岁正常中老年５２０例的部分呼气流量－容积（ＰＥＦＶ）曲线及有关肺功能指标作了测定，并用多元农步回归分析法建立了功能残气位呼气流量（ＶＦＲＣ）、用容积校正的ＶＦＲＣ／ＦＶＣ、各肺容积流量Ｖ７５、Ｖ５０、Ｖ２５以及比时间常数Ｓτ７５、Ｓτ５０、Ｓτ２５的回归方程。ＶＦＲＣ随年龄增长而下降；经容积校正后的ＶＦＲＣ／ＦＶＣ与年龄的相关性下降，将回归方程用正常人参数作回代检查证明其正确性。结果提
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| 关 键 词： | 中老年人 部分呼气流量 容积曲线 PEFV |
Study of PEFV curves in 520 normal middle-aged and old humans] |
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| G Huang,Q Chen,G Liu,J Huang.Study of PEFV curves in 520 normal middle-aged and old humans][J].Journal of West China University of Medical Sciences,1997,28(2):163-166. |
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| Authors: | G Huang Q Chen G Liu J Huang |
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| Abstract: | Partial expiratory flow-volume(PEEV) curves and other pulmonary functions were performed for 520 (20-86 yr) normal midde-aged and old humans. The regression equations of V at FRC (VFRC, volume corrected VFRC (VFRC/FVC), flows at various lung volumes (V75, V50, V25) and specific time constants (S tau 75, S tau 50, S tau 25) were built with multiple stepwise regression analysis. VFRC decreased with increase of age, but after correction with FVC, the correlation of VFRC/FVC with age decreased. The regressions were tested with substitution of parameters with normal persons and proved to be correct. This study suggests that PEFV curve with convenient method has theoretical and practical significance. |
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