概述
多见于高血压、动脉硬化的病人【1】
分为两类,缺血型和非缺血型【2】
通过眼底荧光血管造影(FFA)检查来确定是缺血型还是非缺血型【3】
Non-ischemic CRVO is the most common, accounting for about 70% of cases. Best-corrected visual acuity (BCVA) is often better than 20/200. The characteristics of non-ischemic central retinal vein occlusion include good visual acuity, a mild or no pupillary defect, and mild visual changes. Non-ischemic central retinal vein occlusion can also be referred to as partial, perfused, or venous stasis retinopathy.【4】(非缺血性CRVO最常见,约占70%)
BRVO is further classified into perfused (non-ischemic) or nonperfused (ischemic)【8】(BRVO进一步分为灌注型(非缺血性)和非灌注型(缺血性))
Ischemic BRVO is defined as > 5 disc diameters of nonperfusion on fluorescein angiography (FA).【8】(???这句话我没看懂)
是否使用激光光凝治疗?
对于非缺血性的视网膜静脉阻塞,和中央静脉注射的患者,则不适用余采取激光治疗。使用这种手术不仅不会给患者带来好处,相反还会严重损害周边视野,达到相反效果【5】
眼底荧光血管造影检查证实为缺血性视网膜静脉阻塞的患者予以视网膜激光光凝【6】
In a NonIschemic BRVO the retinal circulation is mostly intact. In an Ischemic BRVO the occlusion is so severe that there is permanent loss of capillaries in the microcirculation in the macula and/or peripheral retina. Ischemic BRVO can lead to the development of abnormal growth of blood vessels on the retina (Neovascularization Elsewhere or NVE).【7】(因为血管的生长,所以需要打激光)
血栓溶解相关药物
阿司匹林(文献报导一定概率脑出血,需定期复查凝血功能)
复方血栓通胶囊(需复查凝血功能)
风险因子
Increasing age(年龄增长)
Ocular hypertension/glaucoma(高眼压/青光眼)
Hypertension(高血压)
Hyperlipidemia(高脂血症)
Body mass index(体质指数)
Hyperhomocysteinemia(高同型半胱氨酸血症)
Anti-cardiolipin antibodies(抗心磷脂抗体)【8】
Reference:
【1】视网膜分支静脉阻塞_百度百科
【2】视网膜中央静脉阻塞的缺血型和非缺血型是什么意思_名医在线
【3】非缺血型视网膜中央静脉阻塞45例临床分析 - 百度学术
【4】Central Retinal Vein Occlusion - PubMed
【5】视网膜静脉阻塞需不需要激光治疗_视网膜静脉阻塞_快速问医生
【6】万方数据知识服务平台
【7】https://www.retinacenternj.com/diseases-treatment/branch-retinal-vein-occlusion-brvo#:~:text=In%20a%20Non-Ischemic%20BRVO%20the%20retinal%20circulation%20is,the%20microcirculation%20in%20the%20macula%20and%2For%20peripheral%20retina.
【8】