中国体外循环杂志2023，Vol.21Issue(6)：342-345,354,5.DOI:10.13498/j.cnki.chin.j.ecc.2023.06.06
主动脉弓部手术中温度变化对脑电阻抗的影响
Effect of temperature changing on cerebral electrical impedance during aortic arch surgery
摘要
Abstract
Objective The aim of this study was to define the relationship between temperature and cerebral electrical im-pedance(CEI),and to derive correction factors for adjustment of impedance measurements during hypothermia.Methods There were 32 patients undergoing aortic arch surgery by deep hypothermic circulatory arrest with selective antegrade cerebral perfu-sion during January 2022 to December 2022.All of them were monitored with CEI and nasopharyngeal temperature.Effect of cooling and re-warming on CEI were observed and analysed by the SPSS statistical software.Results 1.CEI was increasing with cooling and decreasing with re-warming.There was a strong linearly correlation between impedance and temperature for all temperatures measured(cooling:r=-0.992±0.008,P<0.05;re-warming:r=-0.991±0.009,P<0.05).2.The slope for the relationship between CEI and temperature was no significantly different during cooling or re-warming,but that was significantly different be-tween cooling and re-warming(t=3.545,P<0.05).3.The magnitude of CEI changes observed was not significantly correlation with the rate of temperature changes(cooling:r=-0.279,P=0.121;re-warming:r=-0.329,P=0.066).4.The magnitude of CEI changes is about 1.856%with cooling by 1℃and about 1.760%with re-warming by 1℃.The average value was 1.808%/℃.Conclusions CEI was linearly related to temperature and it was the same during cooling and re-warming.The correction factors had been derived was 1.808%/℃and for adjustment of impedance measurements during hypothermia.关键词
脑电阻抗/深低温停循环/体外循环/主动脉弓部手术Key words
Cerebral electrical impedance/Deep hypothermic circulatory arrest/Cardiopulmonary bypass/Aortic arch surgery引用本文复制引用
胡志斌,毛文帅,郭李君,刘志伟,葛根贤,周冰,崔勇..主动脉弓部手术中温度变化对脑电阻抗的影响[J].中国体外循环杂志,2023,21(6):342-345,354,5.基金项目
浙江省医药卫生科技计划项目(2022KY519),2021年浙江省医师协会临床研究基金项目(恒瑞麻醉专项) （2022KY519）
