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首页> 外文期刊>Journal of stroke and cerebrovascular diseases: The official journal of National Stroke Association >The Claw Sign: An angiographic Predictor of Recanalization After Mechanical Thrombectomy for Cerebral Large Vessel Occlusion
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The Claw Sign: An angiographic Predictor of Recanalization After Mechanical Thrombectomy for Cerebral Large Vessel Occlusion

机译：爪标志：脑大血管闭塞机械血液切除术后重算的血管造影预测因子

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摘要

Background: Mechanical thrombectomy undoubtedly improves functional outcomes for patients with acute ischemic stroke. Although we have observed occlusion sites that protrude proximally into the vessel on angiography, termed the "claw sign," we have been unable to state its clinical significance. In this study, we aimed to determine whether the presence of a claw sign was related to recanalization success after mechanical thrombectomy. Materials and Methods: We retrospectively included 73 consecutive patients treated for acute cerebral large vessel occlusion by mechanical thrombectomy between January 2014 and December 2017. The angiographic claw sign was defined as a thrombus that protruded proximally by more than half the diameter of the parent artery. Claw sign positivity, clinical and etiological features, and outcomes were compared between groups with and without recanalization. Results: The claw sign was observed in 29 of 73 (40%) patients and was positive significantly more frequently in those with recanalization (50.0%) than in those without recanalization (5.9%) (P<.01). By multivariate analysis, the claw sign was the only pretreatment parameter to predict successful recanalization (odds ratio, 12.50; 95% confidence interval, 1.50-103.00; P=.019). Conclusions: The presence of the claw sign might predict successful recanalization in patients undergoing mechanical thrombectomy for large vessel occlusion.
机译：背景：机械血栓切除术无疑改善了急性缺血性卒中患者的功能性结果。虽然我们已经观察到近侧突出到血管造影血管内的闭塞位点，但是被称为“爪征”，我们无法陈述其临床意义。在这项研究中，我们旨在确定爪标志是否存在于机械血栓切除术后的重新化成功。材料和方法：通过2014年1月至2017年1月至2017年12月，通过机械血液切除术来回顾性地包括73名以急性脑大容器闭塞治疗的连续患者。血管造影爪标志被定义为近似突出超过父动脉的一半以上的血栓。爪征标阳性，临床和病因学特征，在具有和没有重组的群体之间进行比较。结果：在73名（40％）患者的29名（40％）患者中观察到爪标志，并且在重量（50.0％）的那些中的阳性比没有重次化的那些（5.9％）（P <.01）。通过多变量分析，爪符号是预测成功重新定化的唯一预处理参数（差距，12.50; 95％置信区间，1.50-103.00; p = .019）。结论：爪标志的存在可能预测大血管闭塞的机械血栓切除术患者的成功再生化。

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