眼部血流动力参数变化与视网膜分支静脉阻塞的关系  

The relationship between ocular hemodynamic change and the the branch retinal vein

作　　者：曹婷婷[1] 刘逾[1] 范玉香[1] 王连丰[1] Cao Tingting;Liu Yu;Fan Yuxiang;Wang Lianfeng(Department of Ophthalmology,the Central Hospital of Cangzhou, Cangzhou 061001, China)

机构地区：[1]沧州市中心医院眼一科,河北沧州061000

出　　处：《甘肃医药》2016年第8期569-571,共3页Gansu Medical Journal

摘　　要：目的:探讨眼部血流动力学变化与视网膜分支静脉阻塞(BRVO)的关系。方法:BRVO单眼患者105例(105眼),同期选取一般情况匹配的正常眼对照组58例(106眼),均行双眼彩色多普勒血流显像(CDFI)检查。以眼动脉(OA)、睫状后短动脉(PCA)、视网膜中央动脉(CRA)的收缩期峰值血流速度(PSV)、舒张末期血流速度(EDV)、阻力指数(RI)及视网膜中央静脉(CRV)最大血流速度(Vmax)为观察指标,比较BRVO患眼、对侧健眼及正常对照眼的差异。结果:BRVO眼OA、PCA、CRA的PSV、EDV,以及CRV的Vmax均明显低于正常眼(P<0.05),各动脉RI值高于正常眼(P<0.05)。BRVO对侧健眼OA、PCA、CRA的PSV、EDV高于BRVO眼(P>0.05),低于正常眼(P<0.05),RI值与BRVO眼或正常眼比较均无统计学差异(P>0.05);BRVO对侧健眼CRV的Vmax高于BRVO眼(P<0.01)和正常对照眼(P<0.05)。结论:单眼BRVO患者的患眼及健眼均存在眼部动脉和静脉的血流动力学异常,动脉顺应性下降以及供血障碍,可能是BRVO的发病机制之一。Objective: To investigate the relationship between the branch retinal vein occlusion (BRVO) and ocular hemodynamicschange. Methods: 105 cases (105 eyes) with monocular BRVO and 58 cases (106 eyes) in control group at the same time were selected, whichwere tested by color doppler flow imaging in all eyes. In ophthalmic artery (OA), short after the ciliary artery (PCA), central retinal artery(CRA), systolic peak flow velocity (PSV), end-diastolic velocity (EDV), resistance index (RI) and central retinal vein (CRV) maximum bloodflow velocity (Vmax) were observed. We compared the difference between BRVO eye, the contralateral health eye and normal eye. Results:PSV, EDV of the OA, PCA and CRA , Vmax of the CRV in BRVO eyes were significantly lower than the normal eyes (P<0.05), the arterial RIvalues higher than the normal eyes (P<0.05). BRVO contralateral health eye OA, PCA and CRA PSV, EDV above BRVO eye (P> 0.05), lowerthan the normal eyes (P<0.05), RI values compared with BRVO eye or normal eye were no statistically significant difference (P> 0.05), BRVOcontralateral healthy eye CRV Vmax above BRVO eyes (P< 0.01) and normal control eyes (P< 0.05) . Conclusions: Monocular BRVO affect?ed eye and health eye in patients with ocular artery and vein hemodynamic abnormalities, falling arterial compliance and blood disorders,which may be one of the pathogenesis of BRVO.

关 键 词：视网膜分支静脉阻塞 彩色多普勒超声 血流动力学 发病机制 

分 类 号：R774.1[医药卫生—眼科]