非心脏大手术老年患者术后认知功能障碍与术中脑氧代谢的关系

被引:44
作者
蔡一榕
薛张纲
朱彪
机构
[1] 复旦大学附属中山医院麻醉科
关键词
老年人; 手术后并发症; 认知障碍; 脑; 氧耗量;
D O I
暂无
中图分类号
R614 [麻醉学];
学科分类号
100217 [麻醉学];
摘要
目的探讨非心脏大手术老年患者术后认知功能的改变及与术中脑氧代谢的关系。方法择期非心脏大手术老年患者64例,年龄65~85岁,于术前2~3 d和术后第7天时,分别由心理医师进行一次神经心理测验。在单项测验中术前与术后分值之差≥1个术前分值标准差定为认知功.能受损,一个患者在2项或2项以上测验中出现认知功能受损则定为认知功能障碍。于麻醉诱导后即刻、2 h、离开麻醉恢复室时分别同步采集桡动脉和颈内静脉球部血样进行血气分析,计算脑血流量/脑氧代谢率比值(CBF/CMRO2>20为异常)。结果61例患者完成术后神经心理测验,有10例(16. 4%)发生术后认知功能障碍(POCD)。Logistic回归分析显示麻醉诱导后2h时CBF/CMRO2的异常与POCD发生有关。结论非心脏手术老年患者术后POCD的发生与术中脑氧代谢异常有关。
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