CAJ | 학술논문

　　目的：探讨颈内动脉重度狭窄或闭塞患者侧支循环代偿的状况与脑梗死的关系。方法：将颈内动脉狭窄≥70%的患者57例分为症状组42例和无症状组15例。通过TCD观察Willis环及其他侧支循环代偿情况，分析侧支循环与脑梗死的关系。结果：两组间MVMCA下降率有显著差异（<0.01）。症状组Willis环的代偿程度均低于无症状组，有显著差异（<0.01）。眼动脉代偿差异无统计学意义。症状组均有新发脑梗死病灶；无症状组新发脑梗死5例。结论：颈内动脉重度狭窄或闭塞患者是否出现脑梗死及脑梗死类型与侧支代偿情况有关。
　　목적：탐토경내동맥중도협착혹폐새환자측지순배대상적상황여뇌경사적관계。방법：장경내동맥협착≥70%적환자57례분위증상조42례화무증상조15례。통과TCD관찰Willis배급기타측지순배대상정황，분석측지순배여뇌경사적관계。결과：량조간MVMCA하강솔유현저차이（<0.01）。증상조Willis배적대상정도균저우무증상조，유현저차이（<0.01）。안동맥대상차이무통계학의의。증상조균유신발뇌경사병조；무증상조신발뇌경사5례。결론：경내동맥중도협착혹폐새환자시부출현뇌경사급뇌경사류형여측지대상정황유관。
Objective:To investigate the relationship between the status of collateral circulation and cere-bral infarction in patients with severe internal carotid artery stenosis or occlusion. Methods: Fifty-seven patients with internal carotid artery stenosis≥ 70% were divided into symptomatic group (n=42) and asymptomatic group (n=15). The relationship between collateral circulation and cerebral infarction was analyzed by observing the integrity of the circle of Willis and other collateral pathways using TCD. Re-sults:There were significant differences in the rate of descend of MVMCA between the two groups ( <0.01). The patency of the Willis circle in the symptomatic group was less than that in the asymptomatic group ( <0.01). There was no statistical difference between the two groups in the opening of the Ophthalmic artery. New infarction lesions were detected in all the patients of the symptomatic group and in 5 patients of the asymptomatic group. Conclusion:In patients with internal carotid artery stenosis or occlusion, the cerebral infarction and its type are associated with the integrity of collateral pathways.