• Hwa Young Ahn and Jeong Kyu Lee.
• Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
• J. Korean Med. Sci. 2020 Jun 15; 35 (23): e177.

BackgroundHigh-dose intravenous steroids are the first-line treatment for patients with moderate-to-severe and active Graves' ophthalmopathy (GO). We aimed to investigate the response rate of methylprednisolone (MPD) treatment among Korean patients with active moderate-to-severe GO and to identify predictive factors of treatment response.MethodsThis is a retrospective observational study. We included 54 active moderate-to-severe GO patients treated with 4.5 g intravenous MPD over 12 weeks between November 2011 and November 2018. Response was defined as an improvement in at least two of five indicators (clinical activity score [CAS], soft-tissue involvement, exophthalmos, diplopia, and visual acuity) at immediate and 3 months after treatment completion. We examined predictive factors for response using logistic regression analysis.ResultsTwenty-four (44.4%) and 22 (40.7%) patients showed response at immediate and 3 months after intravenous (IV) steroid treatment. Of the five ophthalmic parameters, all patients in the responsive group (100.0%) showed a decrease in CAS and 90.9% showed less soft tissue involvement after IV steroid treatment. Among variables, the sum of extraocular muscle width was positively (odds ratio [OR], 1.163; 95% confidence interval [CI], 0.973-1.389; P = 0.096) associated with treatment response. While, the OR of age was 0.918 (95% CI, 0.856-0.985; P = 0.017) and thyrotropin binding inhibitory immunoglobulin (TBII) was 0.921 (95% CI, 0.864-0.982; P = 0.012).ConclusionIn Korean active moderate-to-severe GO patients, intravenous steroid treatment is not as effective as previously reported. Parameters associated with CAS and soft-tissue involvement were found to be influenced by IV MPD treatment. Extraocular muscle enlargement, younger age and lower TBII are predictive factors for a good steroid treatment response.© 2020 The Korean Academy of Medical Sciences.

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