无糖尿病视网膜病变糖尿病患者黄斑区视网膜厚度与病程及血糖水平的相关性研究

目的 分析正常人群与糖尿病患者未发生视网膜病变时黄斑区视网膜厚度差异,以及糖尿病患者黄斑区视网膜厚度与糖尿病病程以及血糖水平的关系.方法 选取2016年4月至11月于我院内四科治疗的糖尿病无视网膜病变患者(22例)为糖尿病无视网膜病变组,同期另选22名正常人为正常组.光学相干断层扫描测定所有患者的黄斑中心凹视网膜厚度(central subfield retinal thickness,CSRT)、黄斑部体积(cube volume,Cv)及平均黄斑区厚度(cube average thickness,CAT),分析糖尿病患者与正常人群CSRT、CV、CAT的差别.将糖尿病无视网膜病变患者按照糖尿病病程(分为A、B、C3组)及血糖状态(分为D、E2组)进行分组,比较组间CSRT、CV、CAT差异.结果 糖尿病无视网膜病变组患者随着糖尿病痛程的增加CSRT、CV及CAT逐渐增加,差异均有统计学意义(均为P＜0.05).糖尿病无视网膜病变组患者随着糖尿病患者血糖的上升CSRT、CV及CAT逐渐增加,差异均有统计学意义(均为P＜0.05).CSRT、CV及CAT与糖尿病病程及血糖均呈正相关(均为P＜0.05).结论 糖尿病患者相比正常人群CSRT、CV及CAT明显增厚,且CSRT、CV及CAT随糖尿病病程及血糖的增加而逐渐升高,为糖尿病早期视网膜病变的诊断提供可靠的参考.

Correlation between macular thickness and course of disease,blood glucose level in patients with diabetic retinopathy without diabetes mellitus

Objective To analyze the difference of macular retinal thickness between normal subjects and diabetic patients without retinopathy,and discuss the relationship between macular thickness and the course of diabetes,blood glucose level.Methods Twenty-two cases of patients with diabetic without retinopathy without retinopathy in our hospital of fourth Department of Internal medicine from April 2016 to November 2016 were selected as diabetic without retinopathy group,and another 22 normal pemons were selected as the normal group.The central subfield retinal thickness (CSRT),cube volume(CV) and cube average thickness(CAT) of all patients were determined by optical coherence tomography (OCT),and the difference of CSRT,CV and CAT between diabetic patients and normal group were analyzed.Then,the patients with diabetic retinopathy were sub-grouped according to the course of diabetes (group A,B,C,) and blood glucose status (group D and E),and the differences of CSRT,CV and CAT among them were compared.Results With the increase of diabetes duration in the diabetic without retinopathy group,CSRT,CV and CAT were gradually increased,and there was significant difference (P ＜ 0.05).With rising blood sugar in diabetics in the diabetic without retinopathy group,CSRT,CV and CAT were gradually increased,and there was significant difference (P ＜ 0.05).There were positive correlation between CSRT,CV,CAT and course,blood sugar of diabetes mellitus (all P ＜ 0.05).Conclusion Compared with normal population,CSRT,CV and CAT are significantly thickened in diabetes mellitus patients,and CSRT,CV and CAT are increased gradually with the increase of diabetes and blood glucose,which provide reliable reference for the diagnosis of early diabetic retinopathy.