PMID- 37293481 OWN - NLM STAT- MEDLINE DCOM- 20230612 LR - 20240227 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 14 DP - 2023 TI - Analysis of retinal and choroidal characteristics in patients with early diabetic retinopathy using WSS-OCTA. PG - 1184717 LID - 10.3389/fendo.2023.1184717 [doi] LID - 1184717 AB - INTRODUCTION: Diabetic retinopathy (DR) is one of the most common and destructive microvascular complications of DM, and has become a major cause of irreversible visual impairment. The purpose of this study was to evaluate the changes in fundus microcirculation in non-diabetic retinopathy (NDR) and mild non-proliferative diabetic retinopathy (NPDR) in patients with type 2 diabetic mellitus (T2DM) using widefield swept-source optical coherence tomography angiography (WSSOCTA), and to investigate the correlation with laboratory indices of T2DM. METHODS: Eighty nine, 58 and 28 eyes were included in the NDR, NPDR and Control groups, respectively, were enrolled in this study. The 12mmx12mm fundus images obtained by WSS-OCTA were divided into 9 regions (supratemporal, ST; temporal, T; inferotemporal, IT; superior, S; central macular area, C; inferior, I; supranasal, SN; nasal, N; inferonasal, IN) to evaluate changes in vessel density (VD) of the superficial capillary plexus (SCP), deep capillary plexus (DCP), choriocapillaris, and mid-large choroidal vessel (MLCV), as well as changes in inner retinal thickness (IRT), outer retinal thickness (ORT), and choroidal thickness (CT). Results: Compared with control group, MLCV VD (I, N, IN) was significantly decreased in NDR group, SCP VD (IT, C, I) and DCP VD (T, IT, I) were significantly decreased in NPDR group. In NPDR group, DCP VD (IT) was significantly decreased compared with that in NDR group. Compared with control group, CT (ST, T, IT, S, SN, IN) was significantly declined in NDR group, and IRT (ST, IT) and ORT (ST, N) were significantly increased in NPDR group. In NPDR group, IRT (ST) and ORT (T, S) were significantly increased compared with NDR group. Correlation analysis showed that age, body mass index, fasting blood glucose, fasting insulin, fasting C-peptide, and estimated glomerular filtration rate in T2DM patients were statistically correlated with retinal and choroidal thickness/VD. DISCUSSION: Structural and blood flow changes in the choroid occur before the onset of DR and precede changes in the retinal microcirculation, and MLCV thickness/VD is a more sensitive imaging biomarker for the clinical detection of DR. WSS-OCTA enables large-scale non-invasive visual screening and follow-up of the retinal and choroidal vasculature in DR patients, providing a new strategy for the prevention and monitoring of DR in patients with T2DM. CI - Copyright (c) 2023 Qi, Si, Feng, Zhu, Yang, Wang, Zhang and Cui. FAU - Qi, Zhihao AU - Qi Z AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. AD - Cheeloo College of Medicine, Shandong University, Jinan, China. FAU - Si, Yuanyuan AU - Si Y AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. AD - Cheeloo College of Medicine, Shandong University, Jinan, China. FAU - Feng, Feng AU - Feng F AD - Cheeloo College of Medicine, Shandong University, Jinan, China. AD - Department of Nephrology, Qilu Hospital of Shandong University, Jinan, China. FAU - Zhu, Jing AU - Zhu J AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. FAU - Yang, Xuepeng AU - Yang X AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. AD - Cheeloo College of Medicine, Shandong University, Jinan, China. FAU - Wang, Wenjuan AU - Wang W AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. FAU - Zhang, Yuting AU - Zhang Y AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. FAU - Cui, Yan AU - Cui Y AD - Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230524 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 SB - IM MH - Humans MH - Fluorescein Angiography/methods MH - Retinal Vessels/diagnostic imaging MH - Retina/diagnostic imaging MH - *Diabetic Retinopathy/diagnosis MH - Choroid/diagnostic imaging/blood supply MH - *Diabetes Mellitus, Type 2 PMC - PMC10244727 OTO - NOTNLM OT - early-diabetic retinopathy OT - mid-large choroidal vessel OT - midperipheral fundus OT - physiological indices OT - type 2 diabetes mellitus OT - widefield swept-source optical coherence tomography angiography COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/06/09 06:42 MHDA- 2023/06/12 06:42 PMCR- 2023/01/01 CRDT- 2023/06/09 04:36 PHST- 2023/03/12 00:00 [received] PHST- 2023/05/11 00:00 [accepted] PHST- 2023/06/12 06:42 [medline] PHST- 2023/06/09 06:42 [pubmed] PHST- 2023/06/09 04:36 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2023.1184717 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2023 May 24;14:1184717. doi: 10.3389/fendo.2023.1184717. eCollection 2023.