高血压冠状动脉钙化及视网膜血管改变相关性中图分类号:R544.1文献标识码:A文章编号:1009_816X(2010)03_0183_03TheRelationshipbetweenCoronaryArteryCalciumQuantificationandRetinalVaseulopathyinHypertensionPatients.ZHANGZhi_yong,YAOKe,CAOYong_bao,etal.EyeCenter,AffiliatedSecondHospitai,CollegeofMedicine,ZhejiangUniversity,Zhejiang310009,China[Abstract]ObjectiveToexploretherelationshipbetweencoronaryarterycalciumquantificationandretinalvasculopathyinhypertensionpatients・MethodsFundusimagesand64_sliceCTcoronaryarteryangiographyweretakenin98hypertensionpatientswithoutdiabetes.Thechangesofhypertensionretinopathyincludingretinalarteriolarfocalnarrowing,arteriovenousnicking,andcoronaryarterycalciumquantificationwereanalyzed.ResuItsThecoronaryarterycalciumquantificationwassignificantlyincreasedwithretinalarteriolarfocalnarrowingandarteriovenousnicking(P<0.01)inhypertensionpatients.Themoreretinalarteriolarfocalnarrowingandarteriovenousnickingbecame,themorecoronaryarterycalciumquantificationwas(P<0.05).Logisticregressionanalysisindicatedthatthegradeofretinalarteriolarfocalnarrowingwasrelatedtothelengthofhypertensionhistory,thelevelofdiastolicbloodpressure,triglyceride,cholesterol,andthescoreofcoronaryarterycalcium・Afteradjustinghistoryofhypertension,diastoliebloodpressure,triglycerideandcholesterol,thegradeofretinalarteriolarfocalnarrowingwascorrelatedtothescoreofcoronaryarterycalcium.ConclusionsThegradeofretinalarteriolarfocalnarrowingwascorrelatedwiththescoreofcoronaryarterycalcification.[Keywords]Hypertension;Retinalartery;Coronaryartery;Calcification双源64层螺旋CT冠状动脉造影是新近应用于临床的冠状动脉无创性检查技术,对冠状动脉病变的诊断具有较高的敏感性和特异性[1,2]。通过非侵入性的方法直接观察视网膜血管,可判断高血压等心脑血管疾病的血管损伤程度[3]o本文通过眼底照相技术和图像分析技术,对眼底照片中的视网膜血管异常,用Hubbard法[4]进行详细评价,并结合双源64层螺旋CT冠状动脉造影结果进行相关性分析,探讨高血压患者视网膜动脉狭窄与冠状动脉钙化的关系。1资料与方法1.1一般资料:随机选择行冠状动脉造影的高血压患者98例,其中男63例,女35例,年龄53〜79岁,平均(71.3±11.5)岁。病例入选标准:(1)均为原发性高血压,诊断和分级按照2003年世界卫生组织/国际高血压协会高血压分级指南[5]。(2)无眼局部血管病变(包括视网膜中央、分支静脉阻塞,视网膜中央动脉栓塞,视神经病变,原发/继发性青光眼,等)。(3)不合并糖尿病[6]。(4)眼底照片清晰可评价。(5)冠状动脉CT图像清晰可评价。1.2方法:1.2.1眼底照相:(1)图片采集:对准备行双源64层螺旋CT冠状动脉造影的患者,在造影前1周内,患者双眼散瞳,进行眼底照相(CR.DGi型Canon眼底照相仪,日本),获取双眼视网膜图像。(2)视网膜血管异常评价:每位患者选取血管病变较重的1眼进行评价。参照Hubbard等[4]对髙血压动脉硬化与眼底血管异常社区研究中所用的方法。先分别以视盘为中心,以视盘大小、距视盘边缘1/2视盘直径和1个视盘直径分别作3个环,将眼底分为4个测量区域(视盘区、A区、B区和周边象限区)。A区外的区域又分为颖上、颖下、鼻上和鼻下4个象限,各区分别评价,分级以最重区域的分级数为准。评价视网膜动脉狭窄和视网膜动静脉交叉压迫征的标准:(a)局限性视网膜动脉狭窄:直径应大于或等于50uni的动脉分支,出现局限性狭窄,其直径小于或等于其远端或近端直径的2/3(视盘区和A区累及1或2支动脉为轻度,累及3支以上动脉为重度;B区和周边象限区,每一象限局限性缩窄总长度小于1/2视盘直径为轻度,长度大于2个视盘直径为重度,其余为中度)。(b)视网膜动静脉交叉压迫征:B区和周边象限动静脉交叉处的远、近两端静脉血柱均出现变窄,血柱...