视网膜分支静脉阻塞与动－静脉交叉的关系  

Patterns of arteriovenous crossings in branck retinalvein occlusion

作　　者：杜振亚[1] 谭家铨[1] 姜德咏[1] 聂爱光[1] 唐朝珍[1] 

机构地区：[1]长沙湖南医科大学第二附属医院眼科

出　　处：《中华眼科杂志》1994年第5期345-347,共3页Chinese Journal of Ophthalmology

摘　　要：７６例（８２只眼）视网膜分支静脉阻塞（ｂｒａｎｃｈｒｅｔｉｎａｌｖｅｉｎｏｃｃｌｕｓｉｏｎ，ＢＲＶＯ）和８２例（８只眼）无ＢＲＶＯ的眼底彩色照片和眼底荧光血管造影片显示：ＢＲＶＯ多发生于颞侧（９０．３％），尤其是颞上象限（５４．９％）。在阻塞处，有静脉后位交叉（ｖｅｉｎ－ｐｏｓｔｅｒｉｏｒｃｒｏｓｓｉｎｇ，Ｖ－Ｐｃ）者为１００％（８２／８２）；而在３个不同对照组的动－静脉交叉（ａｒｔｅｒｉｏｖｅｎｏｕｓｃｒｏｓｓｉｎｇ，Ａ－Ｖｃ）处，Ｖ－Ｐｃ分别为：Ｂ组６７．１％（５５／８２），Ｃ组７０．０％（４９／７０），Ｄ组７４．４％（６１／８２）。阻塞组与三个对照组分别进行比较，差异均有显著性（Ｐ＜０．００１）。提示Ｖ－Ｐｃ可能是ＢＲＶＯ的主要危险因素；动脉对静脉的机械压迫可能是ＢＲＶＯ的主要原因之一。AbstractThe fundus color and fluorescein angiographicphotographs of 82 eyes in 76 cases with recent branchtetinal vein occlusion(BRVO) were compared withthose of 82 eyes in 82 cases without BRVO in the age-sex-matched control group to determine the relation-ship between the arteriovenous crossing and BRVO。Itwas found that 90.3%of the crossings at the obstructive sites were located at the temporal quadrant,espe-crally the superibr temporal quadrant , and the arterylay anterior to the vein at the crossing inall of the eyeswitb BRVO(100%).In the 3 subgroups of the controlgroup,the rates of the crossing at the obstructive sitewith the artery lying anterior to the vein were 67.1%,70.0%and 74.4%in the B, C and D subgroups,re-spectively.Each of the rate of the 3 subgroups wascompared with that of the BRVO group, statistically.There were significant differences (P < 0. 001).Theresults suggest that a crossing with artery lying anteri-or to the vein possibly be one of the risk factors of BR-vO and the artery exerting mecbanical pressure uponthe vein be the main cause in the pathogenesis of BR-VO.

关 键 词：视网膜静脉 动-静脉交叉 血管造影 

分 类 号：R774.102[医药卫生—眼科]