血糖控制和视网膜微血管变化在2型糖尿病患者没有临床视网膜病变的患者
Kangmin Lee1, Ga Hye Lee1, Seung Eun Lee2
1Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang, Korea.
2型糖尿病的低血糖控制与早期的视网膜微血管变化有关,甚至在糖尿病视网膜病变显现之前. 光学连贯断层扫描血管图显示这些变化与HbA1c水平相关.
科学领域:
- 眼科医生 眼科 眼科
- 糖尿病学 糖尿病学
- 医疗成像医学成像
背景情况:
- 2型糖尿病 (T2DM) 影响全球数百万人.
- 糖尿病视网膜病变 (DR) 是T2DM的一个主要并发症.
- 早期发现微血管变化对于预防视力丧失至关重要.
研究的目的:
- 在没有DR的T2DM患者中调查血糖控制和视网膜微血管变化之间的关联.
- 识别与血糖水平相关的微血管损伤的早期指标.
主要方法:
- 追溯性,观察性队列研究.
- 包括没有DR的T2DM患者,分为密集控制 (IC; HbA1c ≤7.0%) 和中度控制 (MC; HbA1c >7.0%) 组,以及健康对照组.
- 使用光学连贯断层扫描 (OCT) 和扫描源OCT血管扫描 (OCTA) 来进行图像参数比较.
主要成果:
- 在MC和IC和对照组中,状血管区域更大.
- 与对照组相比,IC组在视网膜层中显示出较低的血管密度.
- 在MC和IC和对照组中,胆管囊 (CC) 流量缺陷 (FD) 显着更大,与平均HbA1c水平相关.
结论:
- OCTA揭示了与HbA1c水平相关的早期CC损伤,在临床上明显的DR之前.
- 通过OCTA检测到的微血管变化根据血糖控制而有所不同.
- 这些发现表明微血管变化先于DR,并且与T2DM的血糖控制密切相关.
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