Neurology:后循环未破裂动脉瘤患者急性缺血性脑卒中慎用抗凝治疗

2021-11-05 MedSci原创 MedSci原创

IVT在患有囊状UIAs的AIS患者(包括大UIAs)中似乎是安全的(≥10毫米)。大梭形后循环UIAs患者AIS后抗凝可能增加动脉瘤破裂的风险。

未破裂颅内动脉瘤(UIA)被认为是急性缺血性卒中(AIS)静脉溶栓(IVT)的相对禁忌症。然而,目前关于IVT后UIA破裂风险的数据有限。

Jyri Juhani Virta等在Neurology杂志发表研究文章,评估IVT治疗AIS是否会导致未破裂UIA患者的UIA破裂和颅内出血(ICHs)。

该研究对2005年至2019年间在综合卒中中心接受治疗的连续患者进行前瞻性队列研究。评估了芬兰医疗保健登记处的放射报告和记录,以在中心接受IVT治疗的所有AIS患者中确定UIAs患者。分析了患者动脉瘤特征的血管造影和IVT后ICHs的其他脑成像研究。

该研究分析了IVT后UIA破裂导致的院内ICH,以及院内症状性ICHs(ECASS-2标准,即NIH卒中量表评分增加≥4分)和任何住院ICH。

研究流程

在15年的研究期间,共有3953名患者接受了IVT治疗。3953例AIS患者中有132例(3.3%)共有155个UIA(141个囊状和14个梭形)。UIAs的平均直径为4.7±3.8mm,其中18.7%为正常≥7毫米和9.7%≥直径10毫米。141例囊性UIA中无一例在IVT后破裂。三名患有大梭形基底动脉UIAs的患者[2.3%,95%可信区间(CI)0.6-5.8%]在IVT后27小时、43小时和19天发生致命性破裂。这三种药物均在IVT后进行抗凝治疗,抗凝治疗在UIA破裂期间生效。

在所有AIS患者中,分别检测到18.9%(95%CI 12.9-26.2%)和8.3%(95%CI 4.4-13.8%)的ICH和症状性ICH。

IVT在患有囊状UIAs的AIS患者(包括大UIAs)中似乎是安全的(≥10毫米)。大梭形后循环UIAs患者AIS后抗凝可能增加动脉瘤破裂的风险。

原文出处

Virta JJ, Strbian D, Putaala J, Korja M. Risk of Aneurysm Rupture After Thrombolysis in Patients With Acute Ischemic Stroke and Unruptured Intracranial Aneurysms. Neurology. 2021;97(18):e1790-e1798. doi:10.1212/WNL.0000000000012771

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