Vista Klinik Binningen, Binningen, Switzerland; Department of Ophthalmology, University of Basel, Basel, Switzerland; Vienna Reading Center, Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
Division of Endocrinology & Diabetes, Stadtspital Triemli, Zürich, Switzerland.
Diabetes Res Clin Pract. 2019 Feb;148:234-239. doi: 10.1016/j.diabres.2019.01.016. Epub 2019 Jan 23.
Prevalence of retinopathy (DR) in patients with type 1 diabetes treated with education-based intensified insulin therapy (EBIIT) and its association with parameters of glucose control.
151 patients with mean diabetes duration of 14.3 years [SD ± 5.8]) were analyzed. Eyes were examined using standardized 7 field ETDRS (Early Treatment Diabetic Retinopathy Study) settings and images analyzed by a professional external reading center. The glucose exposure over time was defined as HbA1c years, i.e. the sum of the differences between annual mean HbA1c (in %) minus the ideal HbA1c of 6.0% (42 mmol/mol) for each diabetes year (e.g. HbA1c of 8% (64 mmol/mol) over 6 years gives an excess HbA1c of 2.0% (22 for mmol/mol) for 6 years, resulting in 12 HbA1c years (or 131 for mmol/mol)).
The median (interquartile range) of individual mean HbA1c was 7.3% (6.8-7.8) [56 mmol/mol (51-62)]. and the median HbA1c years was 16.8 (9.1-29.1) [183 mmol/mol (99-319)]. No evidence for DR was found in 59 patients (39%), stage 1 DR in 43 (28.5%), stage 2 in 41 (27.2%), stage 3 in 7 (4.6%) and proliferative DR stage 4 in 1 patient. The best correlation between severity of DR and diabetes control measures was found for HbA1c years (Pearson r = 0.41, p < 0.001).
In type 1 diabetes EBIIT is associated with good diabetes control and a low prevalence of DR. The cumulative glucose exposure over time given as HbA1c years is the best predictor for development of DR. ClinicalTrials.gov Identifier: NCT02307110.
评估接受基于教育的强化胰岛素治疗(EBIIT)的 1 型糖尿病患者的视网膜病变(DR)患病率及其与血糖控制参数的关系。
分析了 151 例平均糖尿病病程为 14.3 年[标准差(±5.8)]的患者。使用标准化的 7 区域 ETDRS(早期糖尿病视网膜病变研究)设置检查眼睛,并由专业的外部阅读中心分析图像。血糖暴露时间定义为 HbA1c 年,即每年平均 HbA1c(%)与理想 HbA1c(6.0%[42mmol/mol])之间的差值之和减去每个糖尿病年(例如,HbA1c 为 8%[64mmol/mol]的 6 年,导致 6 年的 HbA1c 过量为 2.0%(22mmol/mol),导致 12 HbA1c 年(或 131mmol/mol))。
个体平均 HbA1c 的中位数(四分位距)为 7.3%(6.8-7.8)[56mmol/mol(51-62)],HbA1c 年的中位数为 16.8(9.1-29.1)[183mmol/mol(99-319)]。59 例(39%)患者未发现 DR,43 例(28.5%)为 1 期 DR,41 例(27.2%)为 2 期 DR,7 例(4.6%)为 3 期 DR,1 例(0.6%)为 4 期增殖性 DR。DR 严重程度与糖尿病控制措施之间的相关性最好的是 HbA1c 年(Pearson r=0.41,p<0.001)。
在 1 型糖尿病中,EBIIT 与良好的糖尿病控制和低 DR 患病率相关。HbA1c 年作为血糖暴露时间的累积指标是 DR 发生的最佳预测指标。临床试验注册号:NCT02307110。