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为探讨ＰｅｔＣＯ２在新生儿机械通气中估测ＰａＣＯ２的可靠性和应用价值，在２０例ＰａＯ２／ＦｉＯ２＞２６７ｋＰａ，呼吸频率＜７０次／分的机械通气的新生儿中进行了ＰｅｔＣＯ２和ＰａＣＯ２对比研究。ＰｅｔＣＯ２监测采用气管插管的近端和远端两种方法，并对近端的监测值作了个体化纠正。结果表明在机械通气的新生儿中应用ＰｅｔＣＯ２监测，无论在气管插管的近端或远端或近端纠正后ＰｅｔＣＯ２，其与ＰａＣＯ２相关均良好，ｒ分别为０８６、０９２和０９６。远端监测的方法较近端能更精确地反映ＰａＣＯ２，但易被分泌物阻塞；近端纠正后的ＰｅｔＣＯ２值比远端监测更接近ＰａＣＯ２，能较精确地估计ＰａＣＯ２，结论为近端ＰｅｔＣＯ２监测方法简捷、易行、不易被分泌物阻塞，通过个体化纠正后的数据比远端监测更接近ＰａＣＯ２，便于推广使用
In order to investigate the reliability and application value of PetCO2 to estimate PaCO2 in neonatal mechanical ventilation, PetCO2 and PaCO2 were compared in 20 mechanically ventilated neonates with PaO2 / FiO2> 26.7kPa and respiratory rate <70 beats / min the study. The PetCO2 monitors both proximal and distal tracheal intubation and individually corrects the proximal monitoring values. The results showed that PetCO2 monitoring in mechanically ventilated neonates showed good correlation with PaCO2 regardless of proximal or distal or proximal correction of PetCO2 after tracheal intubation (r = 0.86, 0.92 and 0, respectively) 96. The method of distal monitoring more accurately reflects PaCO2 than the proximal one, but it is easily blocked by secretions. The value of PetCO2 after proximal correction is closer to PaCO2 than that of distal monitoring, and PaCO2 can be estimated more accurately. The conclusion is that proximal PetCO2 monitoring The method is simple, easy and easy to be blocked by secretions, and the data corrected by individualization is closer to PaCO2 than remote monitoring, facilitating the promotion