Stroke:阿托伐他汀对CAS患者的围手术期并发症有预防作用!

2017-07-12 佚名 嘉音

6月16日在线发表于《Stroke》杂志的一项研究显示,他汀预防可以降低颈动脉支架置入术患者的围手术期并发症发生率,并且该作用与他汀剂量相关。

6月16日在线发表于《Stroke》杂志的一项研究显示,他汀预防可以降低颈动脉支架置入术患者的围手术期并发症发生率,并且该作用与他汀剂量相关。

最近的随机研究显示,颈动脉内膜剥脱术(CEA)和颈动脉支架置入术(CAS)的围手术期并发症发生率相似。但是,除心肌梗死外,CAS的其他围手术期并发症发生率高于CEA。

现有研究已经显示他汀预处理可降低经皮冠状动脉介入治疗(PCI)后的心肌梗死发生率和CEA后的围手术期卒中和死亡风险。然而,很少有研究报道在CAS前使用他汀是否也能降低围手术期并发症。他汀预处理对CAS患者围手术期并发症风险是否具有剂量依赖性效应也是未知的。

因此该研究观察了他汀预处理是否与症状性颈动脉狭窄患者行CAS的围手术期并发症降低相关,以及是否存在剂量依赖效应。

研究者纳入2003年7月~2013年6月期间2所大学医院的397例症状性颈动脉狭窄患者(常规血管造影术显示狭窄≥50%),平均年龄为68.7岁(81.6%为男性)。

纳入标准如下:

(1)因症状性颈动脉狭窄接受CAS治疗的患者,定义为术前180天内相关颈动脉影响的短暂性脑缺血发作、暂时性单眼视力丧失或任何缺血性卒中;

(2)颈动脉狭窄>50%的患者,根据北美症状性颈动脉内膜剥脱术试验标准进行常规血管造影测量。

围手术期并发症的定义,包括手术期间及术后1个月内的任何卒中、心肌梗死和死亡。根据阿托伐他汀等效剂量,他汀预处理分为3组:无他汀组(n=158;39.8%),标准强度组(<40mg,n=155;39.0%)和高强度组(≥40mg;n= 84;21.2%)。使用广义估计方程法进行多变量Logistic回归分析,观察围手术期并发症的独立因素。

结果显示:3组患者间的血脂水平无显着性差异。无他汀组、标准强度他汀组和高强度他汀组患者的围手术期并发症发生率分别为12.0%、4.5%和1.2% (P=0.002)。将数据分为手术期间事件和术后1个月的临床事件时,这些趋势保持不变。

校正后发现,阿托伐他汀剂量变化与围手术期并发症发生率降低有关(标准强度他汀:OR 0.24,95%CI 0.07-0.81;高强度他汀:OR 0.11;95%CI 0.01-0.96;趋势P值=0.01)。抗血小板药物使用也是围手术期并发症的独立因素(OR 0.18,95%CI 0.05-0.69)。

该研究表明,他汀对CAS后围手术期并发症的风险降低具有剂量依赖作用,且与基线血脂无关。他汀对CAS患者围手术期并发症风险的剂量依赖效应可能涉及多种机制:症状性颈动脉狭窄患者有不稳定或易损斑块,可能在CAS期间引起血栓形成和栓塞并发症;他汀预处理可改善动脉粥样硬化稳定性,并可减少CAS期间的栓塞;他汀介导的抗凝血和纤维蛋白溶解途径的多效性具有剂量依赖性,类似于他汀降胆固醇的特性。

研究的局限:1.作为一项非随机回顾性研究,结果应谨慎解读;2.结果仅限于有症状的CAS患者,不包括排除在外的存在风险患者,这些无临床症状的颈动脉狭窄患者,也可能存在不稳定的斑块;3.无法通过大脑弥散加权成像评估无症状栓塞性梗死;4.没有比较不同他汀药物的作用。

该研究结论指出,阿托伐他汀预处理可剂量依赖性地减少症状性颈动脉狭窄患者行颈动脉支架置入术的围手术期并发症发生率。
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    2017-07-14 yaanren
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    2017-07-12 1e0f8808m18(暂无匿称)

    好文章,实用研究,学习了。

    0

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    2017-07-12 执着追梦

    学习,谢谢分享

    0

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【1】Stroke:24小时血管通畅与临床结局和梗死体积的相关性近期一些随机试验中观察到,与对照组相比,24小时靶血管通畅率在血栓切除术组中更高。近期,一项发表在杂志Stroke上的研究旨在评估治疗组和闭塞位置的24小时血运重建率,因为它们与REVASCAT(前循环的大血管阻塞在症状发作的8小时内呈现的急性中风,比较FR装置与最佳医疗治疗的血管再生的随机对照试验)的临床结果和24小时梗死体积相

快速一览:近期Stroke杂志研究汇总

【1】Stroke:血管紧张素II肽疫苗通过减少氧化应激来发挥脑缺血保护作用!药物依从性差是在缺血性脑卒中预后不良的主要危险因素之一。疫苗接种有望解决这种问题,因为其持久的效应,但其对缺血性脑损伤的影响仍是未知数。近日,卒中领域权威杂志Stroke上发表了一篇研究文章,研究人员专注于肾素-血管紧张素系统的疫苗接种,并且在永久性大脑中动脉闭塞大鼠模型上评估了血管紧张素II(Ang II)肽疫苗在

盘点:近期Stroke杂志精选文章一览

【1】Stroke:缺血性卒中护理中的男女“不平等”卒中护理,包括溶栓治疗和早期入院的性别特异性差异都经过了报道。在一项大型注册研究中,佛罗里达州和波多黎各州的各个医院都参与了“遵循指南”的项目(Get With The Guidelines,GWTG)——卒中项目,研究人员试图确定在缺血性卒中的性能指标和整体溶栓治疗方面的性别特异性差异。从2010年至2014年,来自73个地点的大约5131

Stroke:职业噪音暴露与卒中无关

研究要点: 探索职业性噪音暴露与卒中的关系。 该研究是队列研究。 结果显示职业性噪音暴露与卒中无关。 有研究发现小于60分贝的交通噪音与卒中风险增加相关。80-86分贝的职业性噪音与卒中风险是否相关尚不清楚。为此,丹麦Aarhus大学医院丹麦Ramazzini中心职业医学科的Zara A. Stokholm博士等人进行了一项研究,研究结果在线发表在2013年8月29日的Stroke杂志上。

Stroke:卵圆孔未闭患者与房颤患者脑卒中影像表现不同

研究要点:1、卵圆孔未闭性卒中在血管造影上通常表现为单一皮质病变或在椎基底动脉发生多发小的缺血性病变2、卵圆孔未闭性卒中血管再通率显著低于房颤性卒中组尽管卒中诊断和评估方法进展迅速,但仍有40%的卒中由不明原因引起的。现在认为,超过一半的隐源性卒中是由心源性血栓引起的。卵圆孔未闭 (Patent Foramen Ovale,PFO)是一种常见先天性心脏畸形,在正常人群中发病率约26%。研究表明