慢性肺源性心脏病急性期合并肺性脑病动脉血液气体分析

为探讨慢性肺源性心脏病急性期合并肺性脑病时血气变化情况，将２４例肺性脑病患者和７４例Ⅱ型呼吸衰竭患者作对比研究。结果：肺脑组ＰａＣＯ２升高、ｐＨ降低较呼衰组更明显（Ｐ＜０．０１），肺脑组ＰａＯ２比呼衰组低（Ｐ＜０．０５）；肺脑组以呼酸合并代酸最常见。提示：ｐＨ值与肺性脑病呈负相关（γ＝－０．６６５），ＰａＯ２与肺性脑病呈正相关（γ＝０．７５１）。

Arterial Blood Gas Analysis of Associated Pulmonary Encephalopathia in the Acute Stage of Chronic Pulmonry Heart Disease

Objective To investigate the changes in arterial blood gases in the acute stage of chronic cor pulmonale complicated with pulmonary encephalopath.Methods:A control study was made in 24 of such patients and 74 with respiratory insufficiency but no encephalophthy.Result:Blood pH Levels decreased in group with pulmonary encephalopath,meanwhile increase of PaCO2 and decrease of PaO2 in group with pulmonary encephalopath were significate compared with group without pulmonary encephalopath(p<0.01￣0.05).There is a high risk of pulmonary encephalopath when respiratory acidosis combined with metabolic acidosis,and solitery respiratory acidosis combined with metabolic acidosis,and solitery respilatory acidosis just follows it.Conclusion:There is a negative relation between blood pH values and pulmonary encephalopathl(γ=-0.655),but a positive relation between PaCO2 and pulmunary encephalopath(γ=0.751).