Neurology:房颤患者脑白质疏松症和脑卒中复发之间的联系

2015-02-28 范伟 MedSci原创

目的:我们的目的是探讨脑白质疏松症和脑卒中复发的长期风险之间的联系,调整脑卒中风险预测的临床评分,如CHADS2(充血性心脏衰竭,高血压,年龄≥75岁,糖尿病,中风或短暂性脑缺血发作)和CHA2DS2-VASc(充血性心脏衰竭,高血压,年龄≥75岁,糖尿病,中风或短暂性脑缺血发作,血管疾病,年龄65-74岁,性别分类)。 方法:研究人群来自雅典脑卒中登记处,根据有无房颤(AF)分为2组。Cox比

目的:我们的目的是探讨脑白质疏松症和脑卒中复发的长期风险之间的联系,调整脑卒中风险预测的临床评分,如CHADS2(充血性心脏衰竭,高血压,年龄≥75岁,糖尿病,中风或短暂性脑缺血发作)和CHA2DS2-VASc(充血性心脏衰竭,高血压,年龄≥75岁,糖尿病,中风或短暂性脑缺血发作,血管疾病,年龄65-74岁,性别分类)。

方法:研究人群来自雅典脑卒中登记处,根据有无房颤(AF)分为2组。Cox比例风险分析的目的是评估脑卒中复发的独立预测因子。探讨脑白质疏松症是否增加CHADS2CHA2DS2-VASc评分预测的准确性,我们采用似然比检验。整体模型的评估采用Nagelkerke R2Harrell C统计。Kaplan-Meier 分析也被使用。

结果:1892例患者中,有320名(16.9%)患有脑白质疏松症,670名(35.4%)有房颤。通过Kaplan-Meier分析,在非房颤组有或无脑白质疏松症的患者之间脑卒中复发的累积概率有显著的差异(P0.01),但在房颤组却无显著差异(P = 0.46)。Cox多因素分析,只在非房颤组发现脑白质疏松症是脑卒中复发的重要独立预测因子,在校正模型中,CHADS2得分(危险比:1.8695%置信区间:1.35-2.56)和CHA2DS2-VASc得分(危险比:1.8295%置信区间:1.32-2.51)。在房颤组,脑白质疏松症不是脑卒中复发的预测因子。脑白质疏松症并没有改善两项得分预测的精确性,无论是在非房颤组(Harrell C统计:0.56 vs 0.59 [ P = 0.31 ]包括CHADS2的模型;0.56 vs 0.59 [ P = 0.44 ]包括CHA2DS2-VASc的模型)或在房颤组(Harrell C统计:0.63 vs 0.62包括CHADS2的模型;0.64 vs 0.64包括CHA2DS2-VASc的模型)。

结论:在非房颤的脑卒中患者中脑白质疏松症是脑卒中复发的独立预测因素。然而,在房颤或非房颤的脑卒中患者中,脑白质疏松症并不会增加CHADS2CHA2DS2-VASc评分的准确性进而预测脑卒中的复发。

原始出处

Ntaios G, Lip GY, Lambrou D, Papavasileiou V, Manios E, Milionis H, Spengos K, Makaritsis K, Vemmos K. Leukoaraiosis and stroke recurrence risk in patients with and without atrial fibrillation. Neurology. 2015 Feb 18.

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    2015-09-19 yinhl1978
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    2015-02-28 weiwei881111

    脑卒中

    0

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房间隔缺损(ASD)为临床上常见的先天性心脏畸形,常伴发出现心房纤颤、心房扑动等心律失常,带来血栓形成和卒中发作等严重并发症,研究指出房缺行修补治疗后房颤发生风险增高。为评估房间隔缺损(ASD)患者的房颤和卒中风险较普通人群是否有明显差异,以及房缺行修复后房颤和卒中风险变化情况,丹麦的一些研究者展开了这项对照研究,近日将研究发表在Heart杂志上 从1977年到2009年,研究者收集了丹麦境内被诊

Eur Heart J :房颤患者抗凝治疗:依度沙班与华法林疗效比较

研究提示,之前未使用过维生素K拮抗剂的房颤患者,其卒中死亡率高于曾使用过维生素K拮抗剂患者。然而,首次使用新型口服抗凝药患者疗效和安全性仍受争议。而且,对于目前已使用维生素K拮抗剂的患者,其更换新型口服抗凝药后的疗效和安全性也是未知的。因此,波士顿布莱根妇女医院心血管科Michelle L. O’Donoghue等人,在ENGAGEAF-TIMI48研究中,对曾使用维生素K拮抗剂的患者,比较研

Stroke:华法林治疗心房纤颤与缺血性卒中

近期的研究证据表现出初期应用华法林治疗后会在短时间内增加患者罹患缺血性卒中的风险。我们对新接受华法林治疗的房颤患者的缺血性卒中的发病率进行了调查。研究方法:我们进行一基于人群的队列研究,研究对象为安大略省居民中在1997年4月1日至2010年8月31日接受华法林治疗的,年龄大于等于66岁的房颤患者。每位患者我们5年内每个30天随访一次,对于每个时间间隔,我们进而确定缺血性中风的发病率。研究结果:5