无症状大脑中动脉闭塞的临床研究

目的 探讨无症状大脑中动脉闭塞患者的临床和影像学特点.方法 回顾性分析2016年1月-2019年1月连续住院并行头颅MRA检查患者的临床及影像学资料,选择无症状性大脑中动脉主干闭塞患者作为研究对象,分析其临床和影像学特点.结果 研究共筛查3967例行头颅MRA检查的患者,其中无症状大脑中动脉闭塞者23例(0.58％),...

Clinical Study of Asymptomatic Middle Cerebral Artery Occlusion

Objective To analyze the clinical and imaging features of the patients with asymptomatic middlecerebral artery (MCA) occlusion.Methods A retrospective analysis of the data of inpatients with asymptomatic MCA occlusion whounderwent head MRA from January 2016 to January 2019 was performed, to analyze the clinicaland imaging features of all the included patients.Results Totals of 3967 patients underwent head MRA examination, and among them, 23 cases(0.58%) with asymptomatic MCA occlusion. For the 23 subjects, the mean age was 61.2±11.2 years(range: 34-80 years), and 14 were male (60.87%) and 9 were female (39.13%). Among them, therewere 14 cases with a history of hypertension (60.87%), 12 with hyperlipidemia (52.17%), 6 witha history of stroke (26.09%), 8 with hyperhomocysteinemia (34.78%), 6 with diabetes (26.09%)and 4 with a history of smoking (17.39%). MRA imaging showed 10 cases (43.48%) with leftMCA occlusion, 10 cases (43.48%) with right MCA occlusion and 3 cases (13.04%) with bilateralMCA occlusion. During the follow-up of 3 months to 3 years, none had symptoms of new cerebralinfarction.Conclusions MCA occlusion can exist in isolation without corresponding clinical symptoms andcerebral infarction lesions, which is worthy of further study.