解剖因素在视网膜分支静脉阻塞中的作用

发布时间：2018-09-17 07:38

【摘要】：目的：通过对62名视网膜分支静脉阻塞(branch retinal vein occlusion, BRVO)患者阻塞部位的结构特征分析及初诊视力和随访视力的统计,探讨其发病因素中解剖因素的重要性,从而为以后的临床诊断及预后评估提供借鉴。方法：回顾分析了2008年1月至2010年12月在新疆医科大学第一附属医院眼科病房接受诊治的62例BRVO患者(62只眼)和同期非BRVO患者(62只眼)的眼底荧光血管造影结果,记录两组后极部动静脉交叉数量及交叉关系、颞侧第一动静脉交叉点与盘缘的距离、第二个孤立的视网膜动脉的存在情况以及BRVO患者的初诊视力和随诊视力,然后进行统计分析。结果：BRVO多发生在颞上象限(69.4%)的主干及第一分支血管的动静脉交叉处,其中以静脉后位交叉(88.5%)多见,颞上BRVO的颞上支第一动静脉交叉点与盘缘的平均距离0.89±0.53PD较对照组的颞上第一动静脉交叉点与盘缘的平均距离1.90±0.79PD明显变短,颞下BRVO眼的颞下支第一动静脉交叉点与盘缘的平均距离1.78±0.24PD较对照组的颞下第一动静脉交叉点与盘缘的平均距离2.09±0.64PD短。BRVO眼第二个孤立的视网膜动脉分支的数量较BRVO对侧眼少,有第二个孤立的视网膜动脉的BRVO患者较无第二个孤立的视网膜动脉的BRVO患者的初诊视力及随访视力均有一定程度的改善。结论：视网膜分支静脉阻塞多发生在颞侧主干及第一分支血管交叉处特别是静脉后位交叉,颞侧第一动静脉交叉与盘缘的距离过短与BRVO的发生有密切关系,第二个孤立的视网膜动脉分支的存在可能对视网膜分支静脉阻塞患者的视力有一定的保护作用。
[Abstract]:Objective: to investigate the importance of anatomical factors in the pathogenesis of retinal branch vein occlusion (branch retinal vein occlusion, BRVO) by analyzing the structural characteristics of the occlusion site and the statistics of primary visual acuity and follow-up visual acuity in 62 patients with retinal branch vein occlusion (RVO). So as to provide reference for future clinical diagnosis and prognosis evaluation. Methods: fundus fluorescein angiography (FFA) was performed in 62 patients (62 eyes) with BRVO and 62 eyes (62 eyes) with non BRVO from January 2008 to December 2010 in the first affiliated Hospital of Xinjiang Medical University. The number and relationship of posterior polar arteriovenous crossover, the distance between the first arteriovenous crossing point of temporal side and the disc margin, the presence of the second isolated retinal artery, and the first visual acuity and follow-up vision of BRVO patients were recorded. Then statistical analysis is carried out. Results in the superior temporal quadrant (69.4%), the most common occurrences were at the arteriovenous crossover of the main trunk and the first branch of blood vessels, in which the posterior position of vein was the most common (88.5%). The average distance between the first arteriovenous crossing point and the disc edge of the superior temporal branch of BRVO was 0.89 卤0.53PD, which was significantly shorter than that of the control group (1.90 卤0.79PD). The average distance between the first arteriovenous crossing point and the disc edge of the subtemporal BRVO eyes was 1.78 卤0.24PD, which was less than that of the control group (2.09 卤0.64PD short. BRVO eyes). The number of the second isolated retinal artery branches in the subtemporal BRVO eyes was less than that in the BRVO contralateral eyes. The primary visual acuity and follow-up visual acuity of BRVO patients with the second isolated retinal artery were improved to some extent compared with those of BRVO patients without the second isolated retinal artery. Conclusion: retinal branch vein occlusion usually occurs at the crossing of the main temporal trunk and the first branch, especially at the posterior position of the vein. The short distance between the first arteriovenous cross of the temporal side and the disc border is closely related to the occurrence of BRVO. The existence of a second isolated branch of retinal artery may have a protective effect on the vision of patients with retinal branch vein occlusion.
【学位授予单位】：新疆医科大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：R774.1

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