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Stroke:DWI-ASPECTS评分预测卒中溶栓预后

2012-12-11 Stroke Stroke

       最近一项发表于《Stroke》研究显示DWI-ASPECTS评分能够预测大脑中动脉梗塞患者rtPA溶栓后预后情况,DWI-ASPECTS评分低的患者,仍有可能因早期血管再通而获益,而DWI-ASPECTS评分≥7分的患者,其早期血管再通对预后无显著影响。 (DWI-ASPECTS评分不同的患者早期开通与否预后的比较) &

       最近一项发表于《Stroke》研究显示DWI-ASPECTS评分能够预测大脑中动脉梗塞患者rtPA溶栓后预后情况,DWI-ASPECTS评分低的患者,仍有可能因早期血管再通而获益,而DWI-ASPECTS评分≥7分的患者,其早期血管再通对预后无显著影响。


DWI-ASPECTS评分不同的患者早期开通与否预后的比较

       该研究主要目的在于研究大脑中动脉主干梗塞的患者采用弥散加权成像-Alberta卒中计划早期CT评分(DWI-ASPECTS)能否预测静脉用重组组织纤溶酶原激活剂(rtPA)溶栓后短期神经功能恢复情况,并研究DWI-ASPECTS评分与临床预后是否相关。

       研究人员将患者预后“显著恢复”定义为发病后24小时和7天,NIHSS评分减少≥10分,或为最终评分为0-1分。“早期再通”定义为静脉用重组组织纤溶酶原激活剂(rtPA)后1小时内血管再通。"良好预后"定义为3个月的改良Rankin评分得分0-2分。研究共纳入66位患者(平均年龄为79岁, 其中男性占34%),患者平均DWI-ASPECTS评分为为6分。

       结果发现,发病后24小时和发病后7天的“显著恢复”的患者人数分别为16例(24%)和26例(39%)。22例(33%)患者出现了早期再通。DWI-ASPECTS≥7 是发病后24小时(OR100.85;95%CI:4.29–2371.40; P=0.004)和发病后7天(OR14.15; 95%可信区间:2.21–90.48; P=0.005)显著恢复的独立预测因素。

       研究还发现,尽管在DWI-ASPECTS≥7分的患者中,早期开通与否的两组患者其良好预后的发生率没有显著性差异(60% vs.31% P=0.228);但是在DWI-ASPECTS<7分的患者中,早期血管开通的患者其预后较好(38% vs.0% P=0.017)。

       通过研究,作者认为DWI-ASPECTS评分能够预测大脑中动脉主干梗塞患者静脉注射重组组织纤溶酶原激活剂后短期恢复情况,对于DWI-ASPECTS得分低的患者,早期开通血管仍有获益。



Background and Purpose
In patients with middle cerebral artery trunk occlusion we investigated whether the diffusion-weighted imaging- the Alberta Stroke Program Early Computed Tomography Score (DWI-ASPECTS) predicts short-term neurological recovery after intravenous recombinant tissue plasminogen activator administration, and investigated how DWI-ASPECTS relates to clinical outcome.
Methods
Dramatic recovery was defined as a ≥10-point reduction or a total National Institutes of Health Stroke Scale score of 0 to 1 at 24 hours and 7 days. Early recanalization was defined as recanalization within 1 hours after intravenous recombinant tissue plasminogen activator. Favorable outcome at 3 months was defined as a modified Rankin Scale score of 0 to 2.
Results
Sixty-six patients (median age [interquartile], 79 [70–85] years, male; 34 [52%]) were enrolled. DWI-ASPECTS was 6 (5–9). Dramatic recovery was seen in 16 (24%) and 26 (39%) patients at 24 hours and on day 7, respectively. Early recanalization occurred in 22 (33%) patients. DWI-ASPECTS ≥7 was an independent predictor of dramatic recovery at 24 hours (odds ratio, 100.85; 95% confidence interval, 4.29–2371.40; P=0.004) and 7 days (odds ratio, 14.15; 95% confidence interval, 2.21–90.48; P=0.005). Although the favorable outcome rate was not significantly different between patients with DWI-ASPECTS ≥7 with and without early recanalization (60% versus 31%; P=0.228), it was statistically more frequent in patients with DWI-ASPECTS <7 with early recanalization than those without early recanalization (38% versus 0%; P=0.017).
Conclusions
DWI-ASPECTS predicted short-term recovery in patients with middle cerebral artery trunk occlusion receiving intravenous recombinant tissue plasminogen activator. In patients with lower DWI-ASPECTS, there may still be benefit from early recanalization.

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    2013-10-08 feather89
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    2012-12-12 hyf028
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    2012-12-12 docwu2019

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