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右美托咪定对老年患者良性脑肿瘤术后认知功能障碍的影响 被引量:8

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摘要 目的评价右美托咪定(Dex)对接受脑肿瘤切除术的老年良性脑肿瘤患者术后认知功能障碍(POCD)的影响。方法选择择期行良性脑肿瘤切除术的老年患者60例,年龄62—74岁,体重55—75kg,ASA分级Ⅱ或Ⅲ级,采用随机数字表法,将患者分为生理盐水组(C组)和Dex组(D组),各30例,D组于常规诱导前15min静脉输注Dex负荷量0.5μg/kg,继之以0.4μg/(kg·h)持续输注至术毕前30min,C组给予等容量的生理盐水。术中维持患者脑电双频谱指数(BIS)值在45—55之间,观察两组注Dex前(T0)、气管插管时(T1)、切头皮时(T2)、钻颅骨时(T3)、缝皮时(T4)、气管拔管时(T5)、气管拔管后10min(T6)的平均动脉压(MAP)和心率(HR);于麻醉前、手术结束、手术结束后6、24h采集右颈内静脉血样,测定血清中S10013和神经元特异性烯醇化酶(NSE)的浓度;于术前24h和术后24h采用蒙特利尔国际认知评估量表(MoCA)评分评定患者术后早期的认知功能。结果C组MAP和HR不同时点波动较大,而D组在T1下降后趋于平稳(P〈0.05)。与C组比较,D组MoCA评分升高,血清S100β和NSE的浓度降低(P〈0.05)。C组与D组发生POCD分别有17例(56.7%)、8例(26.7%),D组较C组POCD发生率明显降低(P〈0.05)。结论术中持续静脉榆注Dex对老年患者循环干扰小,可升高术后早期MoCA评分,减少老年患者POCD的发生。
出处 《广东医学》 CAS 北大核心 2016年第17期2654-2657,共4页 Guangdong Medical Journal
基金 广东省医学科研基金资助项目(编号:A2015406)
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参考文献17

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