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目的观察视网膜分支静脉阻塞(BRVO)中,黄斑分支静脉阻塞(MBRVO)与颞侧分支静脉阻塞荧光素眼底血管造影(FFA)特征的异同。方法回顾性分析经FFA诊断为MBRVO 120例120眼和颞侧BRVO 180例180眼的FFA检查资料。结果 MBRVO与颞侧BRVO均为上支发生率高;动静脉交叉处静脉后位发生率高;120例MBRVO中FFA显示阻塞区毛细血管闭塞、中心凹旁毛细血管部分破坏53例(44.2%),黄斑囊样水肿18例(15.0%)。侧支循环形成42例(35.0%)。180例颞侧BRVO中FFA显示阻塞区毛细血管闭塞、中心凹旁毛细血管部分破坏96例(53.3%);黄斑囊样水肿88例(48.9%)。侧支循环形成18例(10.0%)。视网膜新生血管24例(13.3%)。视盘新生血管4例(2.2%)。结论 MBRVO与颞侧BRVO均有缺血改变,但MBRVO不产生视网膜新生血管,颞侧BRVO产生视网膜及视盘新生血管;中心凹旁毛细血管部分破坏比例、黄斑囊样水肿比例,颞侧BRVO均高于MBRVO。MBRVO侧支循环形成比例高于颞侧BRVO。
Objective To investigate the similarities and differences between fluorescein angiography (FFA) features of temporal branch vein occlusion and macular branch vein occlusion (BRRO) in retinal branch vein occlusion (BRVO). Methods A retrospective analysis of 120 cases of FFA diagnosed by FFA in 120 cases of MBRVO and 180 cases of temporal BRVO were performed. Results MBRVO and temporal BRVO both had a high incidence of superficial branches. The incidence of posterior venous posterior branches was high at arteriovenous crossings. FFA in 120 cases of MBRVO showed partial occlusion of capillaries in the obstruction area and partial destruction of the parafoveal capillaries in 53 cases (44.2%). , Cystoid macular edema in 18 cases (15.0%). Collateral circulation formed in 42 cases (35.0%). FFA in 180 cases of temporal BRVO showed occlusion of capillaries in the occlusion area, 96 cases (53.3%) of the capillary vessels in the inferior fovea and 88 (48.9%) macular cystoid edema. Collateral circulation formed in 18 cases (10.0%). Retinal neovascularization in 24 cases (13.3%). 4 cases of optic disc neovascularization (2.2%). Conclusions Both MBRVO and temporal BRVO have ischemic changes, but retinal neovascularization does not occur in MBRVO and retinal and optic disc neovascularization in temporal BRVO. The ratio of partial destruction of capillaries, cystoid macular edema and temporal BRVO are high At MBRVO. MBRVO collateral circulation formation ratio higher than the temporal BRVO.