JACC:80岁以上老人,痴呆的发病率高于冠心病

2016-05-31 phylis 译 MedSci原创

背景:冠状动脉心脏病(CHD)和卒中的成功预防和治疗,导致了长寿老人的大幅增加,随着老人的不断增长,老年人痴呆的风险增加。目标:研究者评估了冠状动脉和其他外周动脉粥样硬化与死亡,痴呆和冠心病的关系。因为男女血管疾病程度的不同,研究对性别和种族进行具体分析,对女性进行低冠状动脉钙化(CAC)的Agatston评分。方法:研究者评估1998 / 1999(平均年龄80岁)到2012 / 2013(平均

背景:冠状动脉心脏病(CHD)和卒中的成功预防和治疗,导致了长寿老人的大幅增加,随着老人的不断增长,老年人痴呆的风险增加。

目标:研究者评估了冠状动脉和其他外周动脉粥样硬化与死亡,痴呆和冠心病的关系。因为男女血管疾病程度的不同,研究对性别和种族进行具体分析,对女性进行低冠状动脉钙化(CAC)的Agatston评分。

方法:研究者评估1998 / 1999(平均年龄80岁)到2012 / 2013(平均年龄93年)期间,心血管健康认知研究中的532名受试者,亚临床心血管疾病(CAC,颈动脉内膜中层厚度、狭窄、踝肱指数)和老年痴呆症风险、冠心病、总死亡率的相关性。

结果:36%的受试者CAC评分>400。女性和非洲裔美国人CAC评分较低。低CAC评分男性较少。CAC评分与冠状动脉钙化数量与年龄校正后的总死亡率和冠心病直接相关。特定年龄的老年痴呆症的发病率明显高于冠心病。只有约25%的死亡是由冠心病引起,16%由老年痴呆症引起。约有64%人死亡时有老年痴呆症的诊断。低CAC评分的白人女性痴呆发病率显著降低。

结论:80岁以上的受试者,痴呆的发病率高于CHD。CAC,作为动脉粥样硬化的标志物,是死亡、冠心病和心肌梗死的风险的决定因素。低CAC评分白人女性患痴呆症的风险显著降低。一个非常重要的悬而未决的问题,特别是非常老的老年人,预防动脉粥样硬化及其并发症是否与减少阿尔茨海默病的病理和老年痴呆症相关。

原始出处:

Kuller LH, Lopez OL, et al. Subclinical Cardiovascular Disease and Death, Dementia, and Coronary Heart Disease in Patients 80+ Years. J Am Coll Cardiol. 2016 Mar 8.


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    2016-10-13 ylzr123

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    2016-09-17 ylzr123

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    2017-05-03 hbwxf
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背景:颅内动脉粥样硬化性狭窄(ICAS)是脑卒中的常见原因,但是对其流行病学的了解较少。研究者在美国心血管队列中,应用高分辨率磁共振血管造影研究ICAS与血管危险因素的相关性。方法:社区动脉粥样硬化风险研究(ARIC)在1987到1989年间从4个美国社区招募受试者。采用分层抽样的方法,研究者从visit5选出1980名受试者进行高分辨率3T磁共振血管造影。所有的图像在一个中心实验室分析,ICAS

BMJ研究新闻:抗胆碱能药可增加老年人认知障碍的发生风险

据发表于JAMA Neurology的一项新的研究显示,许多常用的非处方药中含有抗胆碱能药物,如夜间感冒药,而抗胆碱能药物与老年人认知功能障碍的发生有关。

J Gerontol A-Biol:痴呆患者认知、活动能力及行为下降的因素

背景:痴呆导致认知,功能和行为的改变。研究者研究痴呆患者社会人口学及临床危险因素对认知,功能及行为下降的影响。方法:来自美国的研究者应用来自国家阿尔茨海默病协调中心评估认知(简易精神状态检查表MMSE),功能(功能活动问卷FAQ),及行为(神经精神问卷[NPI-Q 严重程度评分)的数据,记录了8年痴呆患者认知,功能及行为改变的轨迹。研究者应用混合效应线性回归模型评估了457例患者的轨迹。结果:第一