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不同剂量尼莫地平对老年腹部手术患者术后认知功能和脑氧代谢的影响 被引量:10

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摘要 目的观察不同剂量尼莫地平对老年腹部手术患者术后认知功能和脑氧代谢的影响。方法择期行腹部手术的老年患者120例,年龄65~83岁,ASAⅠ或Ⅱ级,随机均分为三组:Ⅰ组在全麻诱导插管后,持续输注尼莫地平15μg.kg-1.h-1至术毕;Ⅱ组输注尼莫地平7.5μg.kg-1.h-1至术毕;Ⅲ组输注等容量生理盐水。于术前1 d、术后4 d测定简易智力状态检查表(MMSE)评分,术后比术前减少2分或2分以上判为发生术后认知功能障碍(POCD)。各组于麻醉诱导前(T0)、麻醉后60 min(T1)和术毕(T2)时,同步采取桡动脉和颈内静脉球部血标本行血气分析,计算动脉血氧含量(CaO2)、颈内静脉球部血氧含量(CjvO2)、动-颈内静脉血氧含量差(Da-jvO2)和脑氧摄取率(CERO2)。结果三组共22例术后4 d发生POCD,Ⅰ组5例(12.5%)、Ⅱ组8例(20.0%)、Ⅲ组9例(22.5%)。Ⅰ组POCD发生率明显低于Ⅲ组(P<0.05)。T1、T2时Ⅰ组Da-jvO2和CERO2明显低于T0时和Ⅲ组(P<0.01)。T2时Ⅱ组Da-jvO2和CERO2明显低于T0时和Ⅲ组(P<0.05)。结论尼莫地平15μg.kg-1.h-1能减少POCD的发生,可能与改善脑氧代谢有关。
出处 《临床麻醉学杂志》 CAS CSCD 北大核心 2010年第4期322-323,共2页 Journal of Clinical Anesthesiology
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参考文献7

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