摘要
目的 了解中心静脉注射碳酸氢钠后呼气末二氧化碳分压的变化与心排血量及血红蛋白的关系，寻找一种在机械通气时能反映心功能的简便方法。方法 在本实验中共观察了３０ 例病人，病人麻醉诱导后均行机械通气，监测呼气末二氧化碳分压（ＰＥＴＣＯ２）。经中心静脉注射碳酸氢钠后，呼气末二氧化碳分压显著升高。将其升高的幅度（ΔＰＥＴＣＯ２）分别与血红蛋白量（Ｈｂ）、心排血量（ＣＯ）和ＣＯ×Ｈｂ 做回归分析。结果 ΔＰＥＴＣＯ２ 与Ｈｂ、ＣＯ和ＣＯ×Ｈｂ 均相关，特别与ＣＯ×Ｈｂ 相关系数较高。结论 ΔＰＥＴＣＯ２ 与ＣＯ×Ｈｂ 具有良好的相关性，如已知Ｈｂ，ΔＰＥＴＣＯ２
Objective In order to investigate the relationships between P ET CO 2 and hemoglobin(Hb),cardiac output(CO),after injection of sodium bicarbonate through central vein.Methods Thirty patients were observed in this study All patients were managed by mechanical ventilation after anesthesia induction.P ET CO 2 were monitored continuously.After injection of sodium bicarbonate through central vein,P ET CO 2 increased obviously.The relationships between P ET CO 2 and Hb,CO or HB×CO were analyzed by linear regression.Results P ET CO 2 was related to Hb and CO,strongly related to HB×CO.Conclusion CO may be predicted well from P ET CO 2 if Hb value is known.
出处
《中华麻醉学杂志》
CSCD
北大核心
1999年第4期230-232,共3页
Chinese Journal of Anesthesiology
