Neurology:无症状梗塞是镰状细胞贫血患者梗死复发的危险因素

2018-08-03 xing.T MedSci原创

由此可见,成年SCA患者的静息梗塞很常见,是未来无症状梗死的重要危险因素。

由于成年镰状细胞贫血症(SCA)患者静息性脑梗塞(SCI)的高患病率以及缺乏指导治疗策略的信息,近日,神经病学领域权威取杂志Neurology上发表了一篇研究文章,研究人员旨在评估SCA成人SCIs复发和明显卒中的风险。

这项观察性研究纳入了18至40岁的成年SCA(HbSS或Sβ0地中海贫血)患者。参与者接受了3特斯拉脑部MRI检查和详细的神经系统检查。时间-事件分析评估了那些伴有或不伴有基线SCI以及新发或进行性梗塞的患者。研究人员通过对数秩检验比较了新发事件的发生率。单变量Cox回归评估了SCI与梗死进展之间的关系。

在SCA成年患者中进行了2次MRI检查且两次MRI检查间隔至少6个月(n=54,平均间隔=2.5年),43%的患者在基线时有SCI。在伴有基线SCI的参与者中,30%的参与者在2.5年内发生新发或进展的SCI,而在基线时不伴有SCI的参与者中为6%;没有参与者发生明显的卒中。随访的新发SCI在既往有SCI患者中为每100患者每年12.9例,而在既往无SCI的患者中为每100患者每年2.4例(对数秩检验p=0.021)。在使用羟基脲治疗、羟基脲剂量或其他卒中危险因素方面伴有或不伴有基线SCI的患者之间没有统计学上的显著差异。SCI的存在与新发或进行性梗塞的风险增加有关(风险比为5.27,95%置信区间为1.09-25.51,p=0.039)。

由此可见,成年SCA患者的静息梗塞很常见,是未来无症状梗死的重要危险因素。

原始出处:


Lori C. Jordan,et al. Silent infarct is a risk factor for infarct recurrence in adults with sickle cell anemia.neurology.2018. http://n.neurology.org/content/early/2018/07/27/WNL.0000000000006047

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    2019-07-05 yinhl1978
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    2018-08-03 sunfeifeiyang

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