CAJ | 학술논문

目的探讨超声检测椎动脉发育不良在后循环缺血中所起的作用.方法从临床上确诊为后循环缺血的416例患者中筛选出椎动脉发育不良的99例作为研究对象,同时选取门诊体检颈动脉超声,无后循环缺血症状的850例检查者,从中筛选出椎动脉发育不良的48例作为对照组,比较两组的血流动力学变化.结果1.后循环缺血组检出椎动脉发育不良者99例,发生率为23.8%,同时伴有颈动脉硬化者87例(87.9%);正常体检组检出椎动脉发育不良者48例,发生率5.6%,同时伴有颈动脉硬化者23例(47.9%),两组发生率比较P<0.05,差异有统计学意义.2.发育不良侧椎动脉平均管径研究组小于对照组,而健侧管径研究组大于对照组,差异有统计学意义;3研究组发育不良侧椎动脉峰值流速、椎动脉血流量小于对照组,差异有统计学意义.结论椎动脉发育不良是后循环缺血的一个原因,而颈动脉硬化可能会使椎动脉发育不良者发生后循环缺血的几率增加,应用彩色多普勒超声检查可以对后循环缺血的病因诊断提供帮助.
목적탐토초성검측추동맥발육불량재후순배결혈중소기적작용.방법종림상상학진위후순배결혈적416례환자중사선출추동맥발육불량적99례작위연구대상,동시선취문진체검경동맥초성,무후순배결혈증상적850례검사자,종중사선출추동맥발육불량적48례작위대조조,비교량조적혈류동역학변화.결과1.후순배결혈조검출추동맥발육불량자99례,발생솔위23.8%,동시반유경동맥경화자87례(87.9%);정상체검조검출추동맥발육불량자48례,발생솔5.6%,동시반유경동맥경화자23례(47.9%),량조발생솔비교P<0.05,차이유통계학의의.2.발육불량측추동맥평균관경연구조소우대조조,이건측관경연구조대우대조조,차이유통계학의의;3연구조발육불량측추동맥봉치류속、추동맥혈류량소우대조조,차이유통계학의의.결론추동맥발육불량시후순배결혈적일개원인,이경동맥경화가능회사추동맥발육불량자발생후순배결혈적궤솔증가,응용채색다보륵초성검사가이대후순배결혈적병인진단제공방조.
Objective To evaluate the role of vertebral artery hypoplasia(VAH) in patients with posterior circulation ischemia(PCI) using color Doppler ultrasound.Methods A number of consecutive 416 patients were identified as PCI,in which 99 patients with VAH were identified as PCI group.48 patients with VAH were selected from 850 asymptomatic outpatients without PCI as control group.The incidence of VAH was compared between different groups.Results 99(23.8%) patients had VAH in PCI group,87(87.9%) in 99 had carotid artery stenosis. In contrast,48(5.6%) patients had VAH in control group,23(46.9%) in 48 had carotid artery stenosis.The incidence of VAH was significantly different between two groups.The mean diameter of hypoplastic vertebral artery was statistically smaller in PCI group,while the mean diameter of contralateral vertebral artery was significantly larger in PCI group compared with those in control group.The peak velocity and flow in hypoplastic vertebral artery was markedly lower.Conclusions VAH is the major reason of PCI,and carotid artery stenosis may increase the incidence of PCI in VAH patients.Color Doppler ultrasound is helpful in identifying etiology of VAH.