2025-05-23 10:13:08 by admin 133
顱內動脈粥樣硬化性狹窄(intracranial atherosclerotic stenosis,ICAS)是導致缺血性卒中重要原因之一,不同人種之間差異明顯,亞裔人群中顱內動脈粥樣硬化性卒中患者占30%~50%,北美人群中僅有8%~10%[1-2]。中國腦動脈狹窄存在顯著的分布特點,即顱內動脈狹窄的比例顯著高于顱外動脈狹窄[3-5]。
2014年中國癥狀性顱內大動脈狹窄與閉塞研究(Chinese Intracranial Atherosclerosis,CICAS)結果顯示中國缺血性卒中或短暫性腦缺血發作(transient ischemic attack,TIA)患者中顱內動脈粥樣硬化發生率為46.6%,伴有ICAS的患者癥狀更重、住院時間更長,卒中復發率更高,且隨狹窄程度的增加復發率升高[6]。
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