摘要
对已确诊的发作期哮喘患者２０例进行了支气管扩张试验，并比较了一秒钟用力呼气容积（ＦＥＶ＿１）、等容量用力呼气流速２５／～７５％（ＦＥＦ２５％～７５％Ｉ＿（ｓｏ＿）及比气道传导率（ＳＧ＿（ａｗ））等８项指标的阳性率。结果ＦＥＶ＿１的阳性率仅为７０％，而ＦＥＦ２５％～７５％Ｉ＿（ｓ０）和ＳＧ＿（ａｗ）的阳性率均可达９５％；ＦＥＶ＿１变化率（％）与其它多项指标变化率（％）呈显著正或负相关。并对各项指标的病理生理学基础和临床意义也进行了较深入的探讨。
wenty asthmatic patients (with mild to severe at-tacks) were examined with bronchodilator test. Eightparameters,FVC,FEV_1,PEF,FEF25～75%,FEF25～75% after inhaling bronchodilator(FEF25～75%Iso),thoracic gas volume(Vtg ),airway resis-tance(Raw)and specific conductance(SGaw),wereinvestigated,compared and analysed. The resultsshowed that the positive rate(PR) of FEV_1,the mostcommonly used parameter at present,was only 70%;the PR of two new parameters FEF 25～75%Iso andSGaw were 95%respectively,the change rate(%)ofFEV_1 was significantly related to that of many other pa-rameters.The pathophysiology and clinical significanceof each parameter were discussed.
出处
《中华结核和呼吸杂志》
CAS
CSCD
北大核心
1995年第6期363-365,共3页
Chinese Journal of Tuberculosis and Respiratory Diseases
