Authors
Neroev V.V., Ohocimskaya T.D., Deryugina N.E.
Helmholtz National Medical Research Center for Eye Diseases, Moscow
Abstract
Diabetic retinopathy (DR), a severe late neuromicrovascular complication of diabetes mellitus, is one of the most acute problems of modern ophthalmology. The study presents the medical history of severe proliferative DR patient during her treatment with bilateral panretinal laser photocoagulation and unilateral microinvasive vitrectomy. The status of blood flow was examined with laser speckle flowgraphy (LSFG), an innovative non-invasive vascular diagnostic methodology. The blood flow parameters in large vessels as well as in microvasculature before and after treatment were compared and analyzed. It was detected that transient decrease in blood flow during treatment was followed with its subsequent restoration. A greater decrease in blood flow at baseline markedly coupled with more severe disease course. LSFG was thus shown to be an efficient method of blood flow diagnostic in DR patients.
Keywords: diabetic retinopathy, laser speckle flowgraphy, LSFG, laser photocoagulation, vitrectomy, ocular blood flow.
References
1. Dedov I.I., Shestakova M.V., Vikulova O.K., Zheleznyakova A.V., Isakov M.A., Sazonova D.V., Mokrysheva N.G. Diabetes mellitus in the Russian Federation: dynamics of epidemiological indicators according to the Federal Register of Diabetes Mellitus for the period 2010–2022. Diabetes mellitus. 2023;26(2):104-123. (In Russ.)
2. Sdobnikova S.V., Sidamonidze A.L., Kiseleva T.N., Ilyicheva E.V., Kravchuk E.A., Markosyan A.G. Study of eye hemodynamics before and after vitrectomy in proliferative diabetic retinopathy. // Scientific and practical conference “Diabetes mellitus and the eye”, Moscow. — 2006.— P. 209-212. (In Russ.)
3. Neroev V.V., Zaytseva O.V., Kiseleva T.N., Ramazanova K.A., Kurchaeva Z.V. Ocular Blood Flow in Patients with Complicated Proliferative Diabetic Retinopathy. Medical Visualization. 2016;(1):18-24. (In Russ.)
4. Krepler K, Polska E, Wedrich A, Schmetterer L. Ocular blood flow parameters after pars plana vitrectomy in patients with diabetic retinopathy. Retina. 2003 Apr;23(2):192-6. doi: 10.1097/00006982-200304000-00009. PMID: 12707598
5. Maeda K, Ishikawa F, Kobayashi K, Ohguro H. [Examination of the optic nerve head blood flow in patients with proliferative diabetic retinopathy treated with vitrectomy]. Nippon Ganka Gakkai Zasshi. 2009 Dec;113(12):1132-8. Japanese. PMID: 20058669.
6. Sullu Y, Hamidova R, Beden U, et al. Effects of pars plana vitrectomy on retrobulbar haemodynamics in diabetic retinopathy // Clin Experiment Ophthalmol. — 2005. — Vol. 33. — P. 246 251.
7. Neroev V. V., Okhotsimskaya T. D., Fadeeva V. A. OCT-angiography in the diagnosis of diabetic retinopathy // Point of View. East-West. – 2016. – Т. 1. – С. 111-3 (In Russ.)
8. Neroeva N.V., Okhotsimskaya T.D., Markelova O.I. Experience in the use of laser speckle flowgraphy in diabetic retinopathy // Fundamental and clinical diabetology in the 21st century: from theory to practice: Collection of abstracts of the conference on treatment and diagnosis of diabetes mellitus, Moscow, September 23-24, 2021. – Moscow: Pechatnye Del Master, 2021. – С. 70. (In Russ.)