【摘要】：目的：通過對62名視網(wǎng)膜分支靜脈阻塞(branch retinal vein occlusion, BRVO)患者阻塞部位的結(jié)構(gòu)特征分析及初診視力和隨訪視力的統(tǒng)計,探討其發(fā)病因素中解剖因素的重要性,從而為以后的臨床診斷及預(yù)后評估提供借鑒。方法：回顧分析了2008年1月至2010年12月在新疆醫(yī)科大學(xué)第一附屬醫(yī)院眼科病房接受診治的62例BRVO患者(62只眼)和同期非BRVO患者(62只眼)的眼底熒光血管造影結(jié)果,記錄兩組后極部動靜脈交叉數(shù)量及交叉關(guān)系、顳側(cè)第一動靜脈交叉點與盤緣的距離、第二個孤立的視網(wǎng)膜動脈的存在情況以及BRVO患者的初診視力和隨診視力,然后進行統(tǒng)計分析。結(jié)果：BRVO多發(fā)生在顳上象限(69.4%)的主干及第一分支血管的動靜脈交叉處,其中以靜脈后位交叉(88.5%)多見,顳上BRVO的顳上支第一動靜脈交叉點與盤緣的平均距離0.89±0.53PD較對照組的顳上第一動靜脈交叉點與盤緣的平均距離1.90±0.79PD明顯變短,顳下BRVO眼的顳下支第一動靜脈交叉點與盤緣的平均距離1.78±0.24PD較對照組的顳下第一動靜脈交叉點與盤緣的平均距離2.09±0.64PD短。BRVO眼第二個孤立的視網(wǎng)膜動脈分支的數(shù)量較BRVO對側(cè)眼少,有第二個孤立的視網(wǎng)膜動脈的BRVO患者較無第二個孤立的視網(wǎng)膜動脈的BRVO患者的初診視力及隨訪視力均有一定程度的改善。結(jié)論：視網(wǎng)膜分支靜脈阻塞多發(fā)生在顳側(cè)主干及第一分支血管交叉處特別是靜脈后位交叉,顳側(cè)第一動靜脈交叉與盤緣的距離過短與BRVO的發(fā)生有密切關(guān)系,第二個孤立的視網(wǎng)膜動脈分支的存在可能對視網(wǎng)膜分支靜脈阻塞患者的視力有一定的保護作用。
[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 鹵0.53PD, which was significantly shorter than that of the control group (1.90 鹵0.79PD). The average distance between the first arteriovenous crossing point and the disc edge of the subtemporal BRVO eyes was 1.78 鹵0.24PD, which was less than that of the control group (2.09 鹵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.
【學(xué)位授予單位】：新疆醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：R774.1

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