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      标题:右美托咪定对老年髋部骨折手术患者术后认知功能、脑组织氧代谢及谵妄的影响
      作者:陈志龙,李志伟,李水娇    罗定市人民医院麻醉科,广东 云浮 527200
      卷次: 2021年32卷21期
      【摘要】 目的 研究右美托咪定对老年髋部骨折手术患者术后认知功能、脑组织氧代谢及谵妄的影响。方法 选择2019年1月至2021年1月罗定市人民医院收治的60例老年髋部骨折手术患者为研究对象,按照随机数表法将患者分为研究组和对照组各30例。所有患者术前均进行常规生命特征监测,随后进行麻醉诱导,在此基础上对照组患者给予0.9%的氯化钠注射液进行静脉输注,研究组患者静脉注入右美托咪定。比较两组患者术前、术后认知功能(MMSE)评分、认知功能障碍(POCD)总发生率、手术前后脑组织氧代谢指标[动脉血氧含量(CaO2)、颈内静脉球部血氧饱和度(SjvO2)、颈内静脉学氧含量(CjvO2)、脑氧摄取率(CERO2)、脑乳酸氧指数(LOI)]、视觉模拟(VAS)疼痛评分、Ramsay镇静评分、谵妄及并发症发生情况。结果 术前,两组患者的MMSE评分比较差异无统计学意义(P>0.05);研究组患者术后24 h、72 h的MMSE评分分别为(25.67±1.93)分、(28.77±2.64)分,明显高于对照组的(21.84±1.65)分、(24.85±2.19)分,差异均有统计学意义(P<0.05);研究组患者术后24 h、72 h的POCD总发生率为13.33%,明显低于对照组患者的43.33%,差异有统计学意义(P<0.05);两组患者术后CaO2、SjvO2、CjvO2、CERO2均优于其术前,且研究组患者的上述指标明显优于对照组,差异均有统计学意义(P<0.05),研究组患者手术前后的LOI比较差异无统计学意义(P>0.05),但对照组患者术后LOI明显低于术前,差异有统计学意义(P<0.05);研究组患者术后VAS评分为(1.26±0.23)分,明显低于对照组的(2.37±0.62)分,Ramsay镇静评分为(2.13±0.35)分,明显高于对照组的(1.12±0.33)分,差异均有统计学意义(P<0.05);研究组患者谵妄发生率为 6.67%,术后并发症发生率为 10.00%,明显低于对照组的26.67%、33.33%,差异均有统计学意义(P<0.05)。结论 老年髋部骨折手术患者术后应用右美托咪定能明显改善患者认知功能,有效促进脑组织氧的代谢,降低谵妄和并发症发生率,且镇静效果良好。
      【关键词】 右美托咪定;髋部骨折;谵妄;老年;认知功能;脑组织氧代谢
      【中图分类号】 R683.3 【文献标识码】 A 【文章编号】 1003—6350(2021)21—2762—04

Effects of dexmedetomidine on postoperative cognitive function, cerebral oxygen metabolism and delirium inelderly patients with hip fracture.

CHEN Zhi-long, LI Zhi-wei, LI Shui-jiao. Department of Anesthesiology, Luoding.People's Hospital, Yunfu 527200, Guangdong, CHINA
【Abstract】 Objective To explore the effect of dexmedetomidine on postoperative cognitive function, cerebraloxygen metabolism and delirium in elderly patients with hip fracture surgery. Methods A total of 60 elderly patientswith hip fracture, who admitted to Luoding People's Hospital from January 2019 to January 2021, were selected and di-vided into the study group and the control group according to random number table method, with 30 patients in eachgroup. All patients underwent routine vital characteristics monitoring before operation, followed by anesthesia induction.On this basis, patients in the control group were given 0.9% sodium chloride injection for intravenous infusion, and pa-tients in the study group were given dexmedetomidine intravenously. The preoperative and postoperative cognitive func-tion (MMSE) scores, the total incidence of cognitive impairment (POCD), visual analogue scale (VAS) scores, RamsaySedation score, delirium and complications, the indexes of cerebral oxygen metabolism before and after operation [arteri-

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