【摘要】 本文对122例COPD患者在测定肺功能同时做了呼气CO₂曲线描记,同时对7例哮喘病人做了用药前后比较,11例患者做了吸氧前后比较,着重对C段斜率与肺功能关系进行了分析,探讨 C 段斜率升高机制。1.肯定了 CO₂曲线是一项简便诊断 COPD 及估计病情轻重的方法;2.曲线∠BC 加大与通气功能障碍关系,∠CD 减少与 V/Q 不均有关;3.∠BC 与 V/75、FEV₁/FVC 关系最密切,∠CD 与Tco,a—ADO₂关系最密切;4.曲线陡直与 PaCO₂升高呈正相关,随着其值加大,斜率加大;5.从肺功能综合指标看 V/Q 不均是 C 段斜率高的主要因素。更多还原

【Abstract】 Basing upon the tests for pulmonary function and CO₂ exhalation curve in 122patients with COPD and pulmonary heart diseases,and upon the comparison ofmedicine results in 7 asthma cases and the comparison of the results of O₂ inhala-tion for 11 patients the relationship between C slope in CO₂ exhalation curve andthe lung function was analysed,and the mechanism of C slope rising discussed.It is concluded that 1.CO₂ exhalation curve analysis can provide a simple andconvenient method of diagnosis.2.The increment of ∠BC is related to the abnormalventilation while the decrement of ∠CD is related to （?）/Q proportion maladjust-ment,whereas ∠CD is closely correlative with （?）/75 FEV₁/FVC and ∠CD is closelycorrelative with （?）/75 FEV₁/FVC and ∠CD is closely correlative with Tco.a-ADO₂.3.The steepness of the curve is positively correlative with the increment ofPaCO₂:the higher the PaCO₂ volume increases,the steeper the curve rises.4.Ana-lysis of the lung function shows that （?）/Q proportion maladjustment and the incre-ment of C slope are more important factors.更多还原