Abstract
Purpose
To determine the relationship between cystoid macular edema (CME) and disease severity and progression in non-paraneoplastic autoimmune retinopathy (npAIR).
Methods
A retrospective study was conducted on patients seen between 2008 and 2016 with npAIR as defined by electroretinogram (ERG) dysfunction, visual field changes, presence of antiretinal antibodies, a negative malignancy workup, and no other apparent cause for visual dysfunction. Optical coherence tomography (OCT) scans were reviewed for each patient. A minimum follow-up of 1 year was necessary for study inclusion. The presence or absence of CME and the length of the preserved EZ on the centermost line scan of the SD-OCT images was recorded at each visit. The main outcome measure assessed was the rate of EZ loss (EZ final − EZ initial / days follow-up) over time, a marker for disease progression.
Results
Thirty-two eyes (16 patients) were included with an average follow-up of 42 months. Twenty-one eyes (66%) had CME on initial presentation and final follow-up (group 1), eight eyes (25%) did not have CME on presentation or final follow-up (group 2), and three eyes (9%) did not have CME on presentation but developed CME during follow-up (group 3). Group 1 eyes had a lower maximal a-wave amplitude (59.0 vs. 220.9 mV, p = 0.012) and lower maximal b-wave amplitude (88.1 vs 256.9 mV, p = 0.017) on baseline ERG compared to Group 2 eyes. The rate of EZ loss over time was significantly greater for group 1 with CME compared to group 2 without CME both at 12 months (− 1.26 μm/day vs. − 0.26 μm/day, p = 0.022) and at final follow-up (− 1.03 μm/day vs. − 0.08 μm/day, p = 0.012).
Conclusions
CME was associated with decreased ERG amplitudes and greater velocity of EZ loss, suggesting that CME is a useful biomarker of more severe and more progressive disease in npAIR.
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Glenn J. Jaffe is a consultant for Heidelberg Engineering.
The authors have no other financial disclosures to report.
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All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interests; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge, or beliefs) in the subject matter or materials discussed in this manuscript.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
For this type of retrospective study, formal consent is not required.
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This was presented as a paper at the Retina Society Meeting, 2017 in Boston.
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Finn, A.P., Thomas, A.S., Stinnett, S.S. et al. The role of cystoid macular edema as a marker in the progression of non-paraneoplastic autoimmune retinopathy. Graefes Arch Clin Exp Ophthalmol 256, 1867–1873 (2018). https://doi.org/10.1007/s00417-018-4084-8
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DOI: https://doi.org/10.1007/s00417-018-4084-8