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  • Title: [Clinical evaluation of the new screening procedures for hydroxychloroquine retinopathy, according to the American Academy of Ophthalmology guidelines. Prospective study of 184 patients].
    Author: Jaumouillé S, Espargillière D, Mouriaux F, Mortemousque B.
    Journal: J Fr Ophtalmol; 2015 May; 38(5):377-87. PubMed ID: 25913441.
    Abstract:
    PURPOSE: To compare the results, in clinical practice, of screening procedures for hydoxychloroquine retinopathy, according to the new recommendations of the American Academy of Ophthalmology of 2011. METHODS: Hundred and eighty-four patients on long-term hydroxychloroquine underwent ophthalmologic evaluation, including fundus examination, 10.2 automated visual field, fundus autofluorescence, SD-OCT optical coherence tomography, and multifocal ERG, whenever possible, in a prospective monocentric study. RESULTS: There was a significant correlation (P<0.05) between cumulative HCQ dose and positive results on SD-OCT and 10.2 visual field. There were no significant correlations between high cumulative HCQ dose and positive results for fundus examination, autofluorescence, or multifocal ERG. Average cumulative doses between the healthy group (946g) and the maculopathy group (1427g) were significantly different (P<0.05). Out of 184 patients, 12 toxic maculopathies were found (prevalence 6.5%). For these 12 cases, 5 were diagnosed at clinical stages, and 7 were diagnosed in the early preclinical stage. Ten patients had positive visual fields, and 8 patients had pathological SD-OCT signs. Autofluorescence was affected in the clinical stage, but not in the preclinical stage. In four out of the twelve cases of maculopathy, patients had pathological ERG results. CONCLUSION: The significant correlation between cumulative HCQ dose, considered as the main risk factor for maculopathy, and positive SD-OCT and 10.2 visual field results render the combination of these two tests the basis of the screening strategy for plaquenil maculopathy. These results suggest using a simplified screening procedure, including annual SD-OCT and 10.2 visual field while taking the cumulative dose into account. Multifocal ERG seems more helpful for diagnostic confirmation than screening, especially for the preclinical stage. Fundus autofluorescence is not an efficient test for early diagnosis.
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