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  • Title: Assessment of measurement methods of posterior inflammation in stromal choroiditis: the value of quantitative outcome measures versus the presently qualitatively based paradigm.
    Author: Gillmann K, El Ameen A, Massy R, Fabro F, Gasc A, Herbort CP.
    Journal: Int Ophthalmol; 2019 Jul; 39(7):1567-1574. PubMed ID: 29946830.
    Abstract:
    PURPOSE: To assess posterior inflammation using a fluorescein (FA)/indocyanine-green angiography (ICGA) scoring system, and compare them to the presently recommended outcome measure, the standardization of uveitis nomenclature vitreous haze score (SUN-VH) in stromal choroiditis. METHODS: This was a retrospective study on patients with a diagnosis of ocular sarcoidosis(OS), ocular tuberculosis(OT), Birdshot retinochoroiditis(BRC) and Vogt-Koyanagi-Harada disease(VKH) seen in the Centre for Ophthalmic Specialized Care, Lausanne, Switzerland. Angiography signs were quantified according to an established FA/ICGA scoring system. Vitritis was assessed using SUN-VH. Results were compared. RESULTS: 65 newly diagnosed patients (128 eyes) with stromal choroiditis were included. Angiographic scoring showed variable degrees of choroidal versus retinal involvement (87% for OS, 72% for OT, 62.5% for BRC and 100% for VKH). On the other hand, a mere 22 of 128 eyes (17%) showed a SUN-VH score ≥ 2 necessary for inclusion in clinical trials. Moreover, FA/ICGA values followed a normal distribution curve and presented inter-examiner variations greater than 1-SD in only 8.4% of cases. SUN-VH values' distribution was non-normal and showed inter-examiner discrepancies greater than 1-SD in 51.7% of cases. CONCLUSION: This study highlights the precise measurement of global posterior inflammation achieved by a dual FA/ICGA scoring system in stromal choroiditis. In contrast, SUN-VH scale appears imprecise and inadequate, as only a minute percentage of the studied eyes could have been included in a clinical trial based on this criterion. To evaluate posterior intraocular inflammation meaningfully in stromal choroiditis, the use of dual FA/ICGA is strongly advised and should replace the presently recommended SUN-VH system.
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