儿童喉罩自主通气下P_(ET)CO_2和PaCO_2的相关性分析  

Correlation between P_(ET)CO_2 and PaCO_2 during spontaneous ventilation via laryngeal mask airway in children

作　　者：黄洪强[1] 施晓华[1] 屈美敏[1] 张莉[1] 

机构地区：[1]南京医科大学附属南京儿童医院麻醉科,江苏省210008

出　　处：《江苏医药》2016年第2期177-179,共3页Jiangsu Medical Journal

摘　　要：目的评价儿童喉罩自主通气下呼气末二氧化碳分压(P_(ET)PaCO_2)和动脉血二氧化碳分压(PaCO_2)的一致性和相关性。方法择期行斜视矫正术的患儿32例全麻后实施保留自主呼吸喉罩通气;记录HR、RR、BP和SpO_2,分别在喉罩置入后10min(T1)、30min(T2)和1h(T3)记录P_(ET)PaCO_2和PaCO_2值,分析两者的相关性。结果各时点HR、BP、RR和SpO2差异均无统计学意义(P>0.05),PaCO_2均低于P_(ET)PaCO_2(P<0.05)。PaCO_2和P_(ET)PaCO_2呈正相关(T1、T2、T3时r值分别为0.72、0.81、0.93,P<0.05)。结论儿童全麻保留自主呼吸喉罩通气期,P_(ET)PaCO_2和PaCO_2值显著相关,P_(ET)PaCO_2高于PaCO_2。Objective To investigate the correlation between end-expired partial pressure of carbon dioxide（PETCO2）and arterial partial pressure of carbon dioxide（PaCO2）during spontaneous breathing via laryngeal mask airway（LMA）in children.Methods Thirty-two children underwent strabismus surgery under general anesthesia with spontaneous breathing via LMA.HR,RR,BP,SpO2,PETCO2 and PaCO2 were recorded simultaneously at 10minutes（T1）,30minutes（T2）and an hour（T3）during spontaneous breathing via LMA.Results There were no significant differences in HR,RR,BP and SpO2 among three time points（P〉0.05）.PaCO2 was lower than PETCO2 at each time point（P〈0.05）.The values of PaCO2 at T1,T2 and T3were positively correlated with those of PETCO2（r=0.72,0.81 and 0.93,P〈0.05）.Conclusion PETCO2 is positively correlated with PaCO2 during spontaneous breathing via LMA in children（PaCO2is lower than PETCO2）.

关 键 词：呼气末二氧化碳分压 动脉血二氧化碳分压 喉罩 自主通气 儿童 

分 类 号：R614[医药卫生—麻醉学]