Analysis of optical coherence tomography of the optic nerve head and of the retinal macular area in multiple sclerosis patients
- Authors: Tkachenko N.V.1, Belekhova S.G.1, Kolesnikova E.T.1, Turgel V.A.1, Semenyuta V.V.2
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Affiliations:
- Pavlov First St. Petersburg State Medical University
- North-Western State Medical University named after I.I. Mechnikov
- Issue: Vol 15, No 1 (2022)
- Pages: 15-28
- Section: Original researches
- URL: https://journals.rcsi.science/ov/article/view/105639
- DOI: https://doi.org/10.17816/OV105639
- ID: 105639
Cite item
Abstract
BACKGROUND: Multiple sclerosis is a chronic autoimmune demyelinating disease of the central nervous system. Early diagnosis of the disease is extremely important for the just-in-time start of specific therapy. Optical coherence tomography (OCT) of the optic nerve head and retina can become an early marker of the neurodegenerative process in multiple sclerosis.
AIM: To determine OCT-changes in the retinal nerve fiber layer (RNFL) thickness and retinal thickness in the macular area being most specific for multiple sclerosis.
MATERIALS AND METHODS: 197 patients were examined, the study group consisted of 136 patients (274 eyes) with an established diagnosis of multiple sclerosis and the disease duration of at least 6 months. The control group included 61 healthy people (122 eyes). All patients underwent a standard ophthalmological examination, OCT was performed on Spectralis OCT (Heidelberg Engineering, Germany) using 2 scanning protocols: ONH-RC-Scan (Optic Nerve Head-Radial Circle Scan) and PPAA (Posterior Pole Asymmetry Analysis)
RESULTS: Only 11 patients (8.1%) had a history of retrobulbar neuritis, the best corrected visual acuity was 0.7 and higher in 83 (81%) patients with multiple sclerosis, while the optic nerve head and retinal nerve fiber layer OCT-changes typical for multiple sclerosis were found in 118 patients (87%). The most prominent thinning of the retinal nerve fiber layer in group with multiple sclerosis was revealed in the temporal part of the optic nerve head (59.9 ± 14.8 in the study group versus 76.6 ± 12.0 in the control group; p < 0.001), the least thinning was in the nasal half (66.6 ± 14.3 in the study group versus 69.3 ± 12.4 in the control group; p = 0.013). The retina in the macular area in multiple sclerosis patients was thinned over the entire area, the most significant changes were in the Outer Nasal 7 zone (303.3 ± 20.4 in the study group versus 324.3 ± 10.0 in the control group; p < 0.001). Cluster analysis found 6 new retinal zones for mapping the macular area using the scanning protocol PPAA. In order to determine the prognostic value of the obtained zones, a logistic regression model was constructed, which with a sensitivity of 87.1% and a specificity of 81.6% allows concluding on the probability of having multiple sclerosis.
CONCLUSION: OCT data using the proposed mapping of the macular area with the mathematical model analysis could be used to diagnose specific optic nerve atrophy, to reveal typical thinning of the retinal nerve fiber layer associated with multiple sclerosis, and in the long run, to become an additional criterion for establishing the diagnosis of multiple sclerosis.
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##article.viewOnOriginalSite##About the authors
Natalia V. Tkachenko
Pavlov First St. Petersburg State Medical University
Email: natalyatkachenko@yandex.ru
SPIN-code: 5187-3670
Cand. Sci. (Med.)
Russian Federation, Saint PetersburgSvetlana G. Belekhova
Pavlov First St. Petersburg State Medical University
Author for correspondence.
Email: beleksv@yandex.ru
ORCID iD: 0000-0003-0293-4811
SPIN-code: 3637-7441
Cand. Sci. (Med.)
Russian Federation, Saint PetersburgEkaterina T. Kolesnikova
Pavlov First St. Petersburg State Medical University
Email: agrotera12@mail.ru
ORCID iD: 0000-0002-0604-6048
SPIN-code: 5139-2061
Clinical Resident
Russian Federation, Saint PetersburgVadim A. Turgel
Pavlov First St. Petersburg State Medical University
Email: zanoza194@gmail.com
ORCID iD: 0000-0003-3049-1974
Postgraduate Student
Russian Federation, Saint PetersburgVyacheslav V. Semenyuta
North-Western State Medical University named after I.I. Mechnikov
Email: semenyuta0@gmail.com
ORCID iD: 0000-0002-9402-3179
SPIN-code: 9798-7616
Cardiovascular Surgeon
Russian Federation, Saint PetersburgReferences
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