【摘要】 目的探讨经皮氧(P_TCO₂)和经皮二氧化碳分压(P_TCCO₂)和动脉血氧（PaO₂）和二氧化碳分压（PaCO₂）相关性。方法选取2016年7月—2017年10月深圳市南山区人民医院收治的34例重症颅脑外伤患者作为研究对象,患者入院时（T0）、入院1 h（T1）、入院4 h（T2）、入院8 h（T3）、入院12 h（T4）抽取动脉血检测PaO₂、PaCO₂水平,同时在相同时间节点检测P_TCO₂、P_TCCO₂水平,采用线性回归和Pearson分析两种检测方法相关性。结果 T0、T1、T2、T3、T4时间节点,P_TCO₂水平均低于PaO₂水平,P_TCCO₂水平均低于PaCO₂水平。线性回顾分析得出,P_TCO₂、P_TCCO₂水平和PaO₂、PaCO₂水平在各个时间节点均有良好相关性,TCO₂和PaO₂相关性:P_TCO₂=-10.1+0.98×PaO₂;P_TCCO₂和PaCO₂相关性:P_TCCO₂=23.5+0.31×PaCO₂。Pearson分析得出,P_TCO₂和PaO₂水平呈正相关性（r=0.955,P=0.000）;P_TCCO₂和PaCO₂水平呈正相关性（r=0.698,P=0.000）。结论 P_TCO₂和P_TCCO₂与PaO₂和PaCO₂有良好相关性,对于动态监测PaO₂和PaCO₂水平患者,可用P_TCO₂和P_TCCO₂替代。更多还原

【Abstract】 Objective To investigate the correlation between percutaneous oxygen( P_TCO₂) and partial pressure of carbon dioxide( P_TCCO₂) and arterial oxygen（ PaO₂） and partial pressure of carbon dioxide（ PaCO₂）. Method Selecting 34 severe craniocerebral trauma patients in the hospital from Jul. 2016 to Oct. 2017 as study object,PaO₂ and PaCO₂ levels were measured at admission（ T0）,admission 1 h（ T1）,admission 4 h（ T2）,admission 8 h（ T3） and admission 12 h（ T4）,meanwhile P_TCO₂ and P_TCCO₂ were detected at the same time point. The relevance of the two detection methods of linear regression and Pearson was analyzed. Result At the time points of T0,T1,T2,T3 and T4,P_TCO₂ levels were lower than those of PaO₂,and P_TCCO₂ levels were lower than that of PaCO₂. Linear regression analysis showed that P_TCO₂,P_TCCO₂ levels and PaO₂,PaCO₂ levels at all time points were of good correlation,P_TCO₂ and PaO₂ correlation was P_TCO₂=-10. 1 + 0. 98 PaO₂; P_TCCO₂ and PaCO₂ correlation was P_TCCO₂= 23. 5 + 0. 31 ×PaCO₂. Pearson analysis showed that P_TCO₂ and PaO₂ levels were positively correlated（ r = 0. 955,P = 0. 000）; P_TCCO₂ and PaCO₂ levels were positively correlated（ r = 0. 698,P = 0. 000）. Conclusion P_TCO₂ and P_TCCO₂ have a good correlation with PaO₂ and PaCO₂,and can be replaced with P_TCO₂ and P_TCCO₂ for patients with dynamic monitoring of PaO₂ and PaCO₂ levels.更多还原