PMID- 37819475 OWN - NLM STAT- MEDLINE DCOM- 20240216 LR - 20240216 IS - 1432-5233 (Electronic) IS - 0940-5429 (Linking) VI - 61 IP - 2 DP - 2024 Feb TI - Associations between retinal microvascular flow, geometry, and progression of diabetic retinopathy in type 2 diabetes: a 2-year longitudinal study. PG - 195-204 LID - 10.1007/s00592-023-02194-w [doi] AB - PURPOSE: To determine the association between retinal blood vessel flow and geometric parameters and the risk of diabetic retinopathy (DR) progression through a 2-year prospective cohort study. METHODS: Patients with type 2 diabetes mellitus (T2DM) were recruited from a diabetic registry between November 2017 and March 2019. All participants underwent standardized examinations at the baseline and 2-year follow-up visit, and the presence and severity of DR were assessed based on standard seven-field color fundus photographs. They also underwent swept-source optical coherence tomography angiography (OCTA) imaging to obtain measurements of foveal avascular zone area, blood vessel density (VD), fractal dimension (FD), blood vessel tortuosity (BVT) in the superficial capillary plexus (SCP) and deep capillary plexus (DCP). RESULTS: A total of 233 eyes of 125 patients were included, and 40 eyes (17.17%) experienced DR progression within 2 years. DR progression was significantly associated with lower baseline VD (odds ratio [OR] 2.323 per SD decrease; 95% confidence interval [CI] 1.456-3.708; P < 0.001), lower FD (OR, 2.484 per SD decrease; 95% CI 1.268-4.867; P = 0.008), and higher BVT (OR, 2.076 per SD increase; 95% CI 1.382-3.121; P < 0.001) of the DCP after adjusting for confounding factors. The addition of OCTA metrics improved the predictive ability of the original model for DR progression (area under the curve [AUC] from 0.725 to 0.805; P = 0.022). CONCLUSIONS: OCTA-derived VD, FD and BVT in the DCP were independent predictors of DR progression and showed additive value when added to established risk models predicting DR progression. CI - (c) 2023. Springer-Verlag Italia S.r.l., part of Springer Nature. FAU - Wu, Yi AU - Wu Y AUID- ORCID: 0009-0000-0923-7248 AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China. FAU - He, Mingguang AU - He M AD - Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Hong Kong, China. FAU - Huang, Wenyong AU - Huang W AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China. FAU - Wang, Wei AU - Wang W AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China. wangwei@gzzoc.com. LA - eng GR - 82000901/National Natural Science Foundation of China/ GR - 82171084/National Natural Science Foundation of China/ GR - 81900866/National Natural Science Foundation of China/ GR - 202102010162/Guangzhou Science & Technology Plan of Guangdong Pearl River Talents Program/ GR - 303060202400362/the Fundamental Research Funds of the State Key Laboratory of Ophthalmology/ PT - Journal Article DEP - 20231011 PL - Germany TA - Acta Diabetol JT - Acta diabetologica JID - 9200299 SB - IM MH - Humans MH - *Diabetic Retinopathy/etiology/complications MH - *Diabetes Mellitus, Type 2/complications MH - Longitudinal Studies MH - Fluorescein Angiography/methods MH - Prospective Studies MH - Retinal Vessels/diagnostic imaging MH - Tomography, Optical Coherence/methods OTO - NOTNLM OT - Cohort OT - Diabetic retinopathy OT - Disease progression OT - Longitudinal OT - OCTA EDAT- 2023/10/11 14:42 MHDA- 2024/02/16 06:42 CRDT- 2023/10/11 11:10 PHST- 2023/07/24 00:00 [received] PHST- 2023/09/24 00:00 [accepted] PHST- 2024/02/16 06:42 [medline] PHST- 2023/10/11 14:42 [pubmed] PHST- 2023/10/11 11:10 [entrez] AID - 10.1007/s00592-023-02194-w [pii] AID - 10.1007/s00592-023-02194-w [doi] PST - ppublish SO - Acta Diabetol. 2024 Feb;61(2):195-204. doi: 10.1007/s00592-023-02194-w. Epub 2023 Oct 11.