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Stroke:动脉闭塞对急性缺血性卒中后静脉溶栓效果的影响

2014-11-30 MedSci译 MedSci原创

我们计划通过研究急性缺血性卒中患者,评价其急性期头颈部CT血管造影进而了解静脉溶栓(IVT)和动脉闭塞之间的相互作用。 研究方法: 患者选自急性卒中注册表和洛桑分析(ASTRAL)注册表,发病到入院间隔时间≤4小时,进行急性期头颈部CT血管造影,发病前改良Rankin量表评分≤2,美国国立卫生研究院中风评分量表≤4。患有明显的颅内动脉阻塞(≥50%–99%)以及正在接受急性

我们计划通过研究急性缺血性卒中患者,评价其急性期头颈部CT血管造影进而了解静脉溶栓(IVT)和动脉闭塞之间的相互作用。



研究方法:

患者选自急性卒中注册表和洛桑分析(ASTRAL)注册表,发病到入院间隔时间≤4小时,进行急性期头颈部CT血管造影,发病前改良Rankin量表评分≤2,美国国立卫生研究院中风评分量表≤4。患有明显的颅内动脉阻塞(≥50%–99%)以及正在接受急性血管内治疗的患者被排除在外。一项对IVT交互性分析和原发性动脉闭塞3个月的预后情况(改良Rankin 量表 <3)是在调整潜在的混杂因素后所得出的。

研究结果:

在654位被选中的患者中,382位患者(58%)表现有动脉闭塞,其中263位患者(69%)接受了IVT。272位患者没有或存在极微小的闭塞,其中139位患者(51%)接受了IVT。在调整交互分析中,有趋势支持动脉闭塞组(odds ratio [OR]=3.97; 95% confidence interval [CI], 0.83–18.97; P=0.08)存在闭塞的患者(adjusted OR for favorable outcome, 3.01; 95% CI, 1.10–8.28)有相对较好的预后,而在没有或存在极微小闭塞的患者(OR, 0.76; 95% CI, 0.21–2.74)中没有明显效果。相反,在进行溶栓治疗时,闭塞患者相比没有或存在极微小闭塞的患者有相似的良好预后比例,但是在缺少溶栓治疗时,预后结果相对较差。



总结:

从这一针对急性脑缺血卒中连续患者的回顾性分析中,我们发现一个趋势,在有原发动脉闭塞的情况下应用IVT相比没有或存在极微小闭塞的情况能够获得更好的预后。然而,在应用随机对照实验证明之前,此信息不应该影响目前的溶栓决策。

原始出处:

Medlin F1, Amiguet M2, Vanacker P2, Michel P2.Influence of Arterial Occlusion on Outcome After Intravenous Thrombolysis for Acute Ischemic Stroke.Stroke. 2014 Nov 25. pii: STROKEAHA.114.006408. [Epub ahead of print]

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    2015-04-16 fusion
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