MICROCIRCULATION OF THE OPTIC DISC AFTER ULTRASONIC AND GUILLOTINE VITRECTOMY
Abstract
The aim of the study was to study the density of the vessels of the optic nerve disc in patients after vitrectomy using ultrasonic and guillotine vitreotomy of caliber 25G and compare the two methods with each other. OCT angiograms of patients who underwent ultrasonic (n=43) and guillotine (n=42) vitrectomy were analyzed at the time: before surgery and for 12 months after it. Vascular density was studied over the entire area of the optic disc, with the exception of large vessels – an indicator of whole image small vessels density.
Results. According to the results of the analysis, there were no statistically significant intergroup differences (p≥0.05), and changes in indicators in dynamics were similar. On the 7th day after surgery, vascular density decreased in the main group (1) from 48.83±4.05 (before surgery) to 43.17±4.43, in the control group (2) from 44.97±5.25 (before surgery) to 42.49±4.18 (p>0.05). By the end of the 4th week, the indicators increased slightly to 44.43±3.86 (1) and 43.49±7.90 (2), respectively; for the 3rd month, they remained at the same level: 44.01±3.94 (1) and 44.57±5.51 (2) (p>0.05); For the 12th month, they decreased to 44.09±5.17 (1) and 38.84±7.14 (2) (p>0.05).
Conclusion. The data obtained suggest that the compared methods have a similar effect on the microcirculation of the optic disc.
About the Authors
B. M. Aznabaev
ФГБОУ ВО «Башкирский государственный медицинский университет» Минздрава России;
ЗАО «Оптимедсервис»
Russian Federation
Russian Federation
T. I. Dibaev
ФГБОУ ВО «Башкирский государственный медицинский университет» Минздрава России;
ЗАО «Оптимедсервис»
Russian Federation
Russian Federation
R. G. Bagdasaryan
ФГБОУ ВО «Башкирский государственный медицинский университет» Минздрава России
Russian Federation
Russian Federation
References
1. Charles S, Calsada J, Wood B. Microsurgery of the vitreous body and retina. Philadelphia: Lippincott Williams & Wilkins. 2012;P.169–180. (In Engl).
2. Aznabaev BM, Dibaev TI, Mukhamadeev TR [et al.] Twenty-five-gauge ultrasonic vitrectomy: experimental and clinical performance analysis. Retina. 2020.Jul;40(7):1443-1450. (In Engl) doi: 10.1097/IAE.0000000000002863.
3. Stanga PE, Pastor-Idoate S, Zambrano I [et al.] Performance analysis of a new hypersonic vitrector system. Plos One.2017;12(6):e0178462. (In Engl)
4. Aznabaev B.M., Dibaev T.I., Mukhamadeev T.R. Clinical results of 117 sergeries performed by the metod of ultrasound vitrectomy 25 G. Sovremennye tekhnologii v oftal'mologii. 2019;(1):12-16. (In Russ) DOI: 10.25276/2312-4911-2019-1-12-16
5. Aznabaev B.M., Dibaev T.I., Mukhamadeev T.R Evaluation of the effectiveness of ultrasound vitrectomy 25G in the surgical treatment of various vitreoretinal pathology. Sovremennye tekhnologii v oftal'mologii. 2018;(1):17-21. (In Russ)
6. Bopp S, El-Hifnawi ES, Bornfeld N. Retinal lesions produced by intravitreal ultrasound. Graefe Arch Clin Exp Ophthalmol. 1993;May;231(5):295-302. (In Engl) doi: 10.1007/BF00919108.
7. Aznabaev B.M., Dibaev T.I., Ismagilov T.N. The analysis of microcirculation parameters of the macular zone after ultrasound vitrectomy using optical coherence tomography-angiography. Saratovskii nauchno-meditsinskii zhurnal. 2018;14 (4):856–862. (In Russ)
8. Aznabaev B.M., Mukhamadeev T.R., Dibaev T.I. Comparative analysis of microcirculation parameters of the optic nerve disc after ultrasound and pneumatic guillotine vitrectomy 25G based on OCT-A data. Materialy Vserossiiskogo nauchnogo foruma s mezhdunarodnym uchastiem, posvyashchennogo 60-letiyu so dnya obrazovaniya TGMU. 2023;323. (In Russ)
9. Okamoto M, Matsuura T, Ogata N. Ocular. Blood Flow Before, during, and After Vitrectomy Determined by Laser Speckle Flowgraphy. Ophthalmic Surg Lasers Imaging Retina. 2014;Mar-Apr;45(2):118-24.V (In Engl) doi: 10.3928/23258160-20140306-04.
10. Sidamonidze A.L. Vlijanie vitrjektomii na osnovnye gemo- i gidrodinamicheskie parametry glaza (The effect of vitrectomy on the main hemoand hydrodynamic parameters of the eye): avtorefju dis…kand. med. nauk. Moskva, 2014: 22. (In Russ)
11. Baldascino A, Carla MM, Caporossi T [et al.] Early OCT Angiography Variations in Macular and Peripapillary Area after Uncomplicated Cataract Surgery and Correlation with Intraoperative Parameters Photonics. Photonics. 2023; Jan;6(3):38. (In Engl)
12. Kur J, Newman EA, Chan Ling T. Cellular and physiological mechanisms underlying blood flow regulation in the retina and choroid in health and disease. Prog Retin Eye Res. 2012;Sep;31(5):377-406. (In Engl) doi:10.1016/j.preteyeres.2012.04.004
Review
For citations:
Aznabaev B.M., Dibaev T.I., Bagdasaryan R.G. MICROCIRCULATION OF THE OPTIC DISC AFTER ULTRASONIC AND GUILLOTINE VITRECTOMY. Bashkortostan Medical Journal. 2024;19(2):83-85. (In Russ.)
Views:
62
Email this article 
