症状性基底动脉高度狭窄血管内介入治疗的临床研究

目的对血管内介入治疗症状性基底动脉高度狭窄的有效性、安全性,以及近期疗效进行探讨。方法对经磁共振血管造影(magnetic resonance angiography,MRA)、CT血管成像(computed tomography angiography,CTA)或脑血管造影术(digital subtraction angiograyhy,DSA)证实为基底动脉高度狭窄(90%)并有相应临床症状的213例患者进行血管内介入治疗,对临床症状变化、手术成功率以及随访结果进行评估。结果 209例(209/213)基底动脉高度狭窄患者成功的进行血管内介入治疗,手术成功率为98.12%,平均狭窄率从术前的(93.70%±2.51%)降至术后的(11.60%±3.90%)。围手术期并发症8例(3.76%),缺血性卒中7例,蛛网膜下腔出血1例。平均随访(18.70±3.80)个月,202例患者再次行DSA,平均狭窄率为(13.80%±4.20%)。5例患者发生支架内再狭窄,其中1例表现为症状性狭窄。结论基底动脉高度狭窄的血管内介入治疗具有有效、安全的优点,术后1.5年随访结果显示血管通畅率好以及能够较好的预防后循环缺血事件的发生。

Clinical study of endovascular interventional therapy for the symptomatic high-grade basilar artery stenosis

Objective To explore the efficacy,safety and short-term effects of endovascular therapy in the treatment of the symptomatic high-grade basilar artery stenosis.Methods Two hundred thirteen patients with the symptomatic high-grade basilar artery stenosis (＞90％) confirmed by MRA,CTA or DSA was treated by endovascular intervention,the changes of clinical symptoms,the success rate and short-term follow-up results was analyzed.Results Endovascular stent was successfully placed in 209 patients with symptomatic high-grade basilar artery stenosis and the success rate was 98.12％.The degree of vascular stenosis was significantly reduced after stenosis (Before vs After:93.70％±2.51％ vs 11.60％±3.90％).Eight patients had complications (3.76％) including 7 cases of ischemic stroke and 1 case of subarachnoid hemorrhage.The average follow-up duration was 18.70±3.80 months.Two hundred two patients underwent a second DSA and the mean vascular stenosis was (13.80％±4.20％).Five patients developed in-stent restenosis (ISR),of which one was symptomatic.Conclusion Endovascular therapy of the symptomatic high-grade basilar artery stenosis is safety and efficacy.The 1.5 years follow-up results reveal good patency rate and excellent prevention of posterior circulation ischemia.