脑血管腔内支架置入治疗症状性脑动脉狭窄20例

背景:关于脑血管支架置入后局部机械性血管壁损伤后发生血管内再狭窄研究中涉及的安全性、病理生理机制及临床疗效尚无确切的结论.目的:探讨脑血管腔内支架置入治疗症状性脑动脉狭窄的安全性、近期临床疗效.方法:对20例症状性脑动脉狭窄患者行脑血管腔内支架置入治疗,狭窄病变22处,位于大脑中动脉6处、颈内动脉6处、椎动脉4处、基底动脉3处,3例为椎-基底动脉狭窄;狭窄长度为3～10 mm,平均为7 mm,其中6处狭窄长度超过10 mm.行自膨式及球囊膨胀式支架置入,使用脑保护装置保护伞12例.结果与结论:20例患者22枚支架均1次放置成功,无一例发生严重并发症,置入后即刻血管造影结果显示,病变段动脉残余狭窄程度小于20%,与治疗前相比较,管腔狭窄明显改善.同时再造影的实质期可见脑组织血流灌注得到改善,临床症状全部得到改善.置入后临床随访6-24个月,20例未再有脑缺血发作,数字减影血管造影随访12～24个月7例,1例出现支架内内膜轻度增生,未引起临床症状.经颅超声多普勒随访结果示狭窄部位血流通畅,支架内未见内膜过度增生,无主要分支血管的闭塞.结果说明脑血管腔内支架置入治疗症状性颅内动脉狭窄安全,近期疗效明显,其长期疗效还需进一步随访观察.

Endovascular stent implantation for symptomatic cerebral artery stenosis in 20 cases

BACKGROUND:Cerebrovascular stent may destroy the vessel walls,which can lead to vascular restenosis.There are different versions about the safety,pathologic pharmacology reasons and clinical effect.OBJECTIVE:To evaluate the safety and short-term effect of endovascular stent implantation for symptomatic artery stenosis.METHODS:Totally 20 patients with total 22 lesions diagnosed symptomatic artery stenosis were treated with endovascular stenting.The vascular stenotic lesions involved middle cerebral artery in...