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. 2023 Jul 5;62(7):2475-2482.
doi: 10.1093/rheumatology/keac626.

Preclinical ocular changes in systemic lupus erythematosus patients by optical coherence tomography

Laura Pelegrín  1 , Montse Morató  1 , Olga Araújo  2 , Marc Figueras-Roca  1 , Javier Zarranz-Ventura  1 , Alfredo Adán  1 , Ricard Cervera  2 , Ricardo P Casaroli-Marano  1 , Vanesa Budi  1 , Lucía Barrera-López  2 , José Ríos  3 , José Hernández-Rodríguez  2 , Gerard Espinosa  2
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Preclinical ocular changes in systemic lupus erythematosus patients by optical coherence tomography

Laura Pelegrín et al. Rheumatology (Oxford). .

Abstract

Objective: The aim of the present study was to detect preclinical changes in SLE patients in retinal microvascularization or retinal and optical nerve structure by optical coherence tomography.

Methods: This cross-sectional, single-centre study aimed to describe structural changes [macular and retinal nerve fibre layer (RNFL) thickness] by structural spectral-domain optical coherence tomography (SD-OCT) and perifoveal vascular [vessel density (VD) and vascular perfusion (VP) and foveal avascular zone (FAZ) structural parameters] findings by OCT angiography (OCTA) in 78 SLE patients and 80 healthy volunteers. In addition, we analysed their association with clinical and laboratory parameters, medications received, disease duration, and SLE activity and damage.

Results: Structural parameters by SD-OCT and perifoveal vascular parameters by OCTA were decreased in SLE patients compared with controls. OCTA parameters (VD, VP and FAZ circularity) and macular thickness were also decreased in patients with longer disease duration (>10 years). The presence of aPLs was associated with a decreased RNFL thickness, mainly in the inferior quadrants. Patients developing APS also showed decreased RNFL thickness and OCTA flow changes. SD-OCT and OCTA results were not associated with disease activity. Foveal structural parameters were lower in patients with higher damage score.

Conclusion: SD-OCT and OCTA can detect preclinical structural and microcirculatory changes in SLE patients. Structural and perifoveal vascular macular changes in SLE patients are related to disease duration. Macular structural parameters were impaired in patients with higher disease damage. APS seems to be associated with preclinical damage to the optic nerve and impairment of the perifoveal microvasculature.

Keywords: Systemic Lupus erythematosus; antiphospholipid syndrome; disease activity index; optical coherence tomography angiography; retinal microvasculature.

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