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The role of cell mediated immunopathogenesis in thyroid-associated ophthalmopathy

International Journal of Ophthalmology(English edition) 2019年第7期12卷 1209-1214页

作者： Zhen-Mao Wang Zheng-Yan Wang Yan Lu Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong Shantou 515000 Guangdong ProvinceChina The People's Hospital of Xintai Xintai 271200 Shandong ProvinceChina Department of Ophthalmology Jinling Hospital School of Medicine Nanjing University Nanjing 210002 Jiangsu Province China

Currently, thyroid-associated ophthalmopathy (TAO) lacks effective treatment due to our lack of clarity in its immunopathogenesis. Orbital fibroblasts play a key role in altering inflammation and immune response in TAO, and are considered as the key target and effector cells in its pathogenesis. The orbit infiltrating CD34+ fibrocytes add on to the process by expressing high levels of autoantigens and inflammatory cytokines, while also differentiating into myofibroblasts or adipocytes. This review focuses on the role of orbital fibroblasts and CD34+ fibrocytes in the pathogenesis of TAO, highlighting the basis of emerging treatments.

关键词： thyroid-associated ophthalmopathy orbital fibroblast fibrocytes immunopathogenesis

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The effect of intravenous high-dose glucocorticoids and orbital decompression surgery on sight-threatening thyroid-associated ophthalmopathy

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International Journal of Ophthalmology(English edition) 2019年第11期12卷 1737-1745页

作者： Yun Wen Jian-Hua Yan The State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat-sen University

AIM: To report the effects of intravenous high-dose glucocorticoids(iv GC) and orbital decompression(OD) surgery for treatment of sight-threatening thyroid-associated ophthalmopathy(TAO).METHODS: A retrospective review of medical records from patients with sight-threatening TAO [definite or highly suspected dysthyroid optic neuropathy(DON)] treated with iv GC(60 cases) and OD(25 cases) was conducted at the Zhongshan Ophthalmic Center between January 2001 and January 2009. Patients were initially treated with iv GC(iv GC group). If no significant improvement in visual function was obtained, they then received OD surgery(OD group). The pre-versus post-treatment efficacies of either iv GC or OD in these patients were assessed using several indices, including visual acuity, intraocular pressure, ocular alignment, ocular motility, and exophthalmos. RESULTS: Nighty-one eyes had definite DON while 79 were considered to have highly suspected DON. In the iv GC group, 51 individuals(85.0%) eventually demonstrated normal vision, while 10 patients(16.7%) demonstrated a reduction in deviation(P<0.01), and 35 cases(58.3%) showed slight improvements in ocular motility(P<0.01). In OD group, visual acuity improved in 24 cases(96.0%, P<0.01) and all patients showed varying reductions of exophthalmos(mean: 4.35±1.13 mm, P<0.01). Eight cases(32.0%) experienced an 8-15 PD reduction of deviation and ocular motility improved in 12 cases(48.0%), while 3 patients(12.0%) developed new-onset strabismus with diplopia post-surgically(P<0.01). Patients were followed up at an average of 1.55±1.07 y. CONCLUSION: Both iv GC and OD show good therapeutic efficacy in the treatment of sight-threatening TAO. Thepresence of extremely poor eyesight(≥0.5 log MAR) was corrected in some patients with iv GC alone, thus sparing these patients from subsequent OD surgery. In patients who were refractory to steroids, subsequent OD surgery often provided satisfactory outcomes, however, new-onset strabismus with diplopia was observed in 12.0% of these cases.

关键词： thyroid-associated ophthalmopathy dysthyroid optic neuropathy glucocorticoids orbital decompression orbital surgery

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Hertel Exophthalmometry and Computed Tomography for the Evaluation of Exophthalmos in Patients with thyroid-associated Ophthalmopathy

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Open Journal of Ophthalmology 2020年第2期10卷 164-173页

作者： Nina Staneva Stoyanova Marieta Konareva-Kostianeva Vesela Mitkova-Hristova Department of Ophthalmology Faculty of Medicine Medical University of Plovdiv Plovdiv Bulgaria

Objective: To compare the values of exophthalmos measured by computed tomography (CT) and Hertel exophthalmometry (HE) in patients with thyroid-associated ophthalmopathy (TAO). Material and Methods: One hundred and seventy eyes were examined in 85 patients with TAO. Each patient underwent a complete ophthalmic examination, Hertel exophthalmometry, and CT of the orbits through a 16-slice CT scanner (Bright Speed, General Electric), measuring the extraocular muscles, the total muscle thickness sum (MTS), and proptosis. The patients were divided into two groups-with activity and without TAO activity, the activity being assessed by means of the Clinical Activity Score (CAS) and the severity-according to the EUGOGO classification. Results: TAO activity was detected in 45 patients (90 eyes, 53%) with MTS of 23.54 ± 5.73 mm, IOP of 19.78 ± 4.49 mm Hg, Hertel exophthalmos of 23.08 ± 4.19 mm and measured by CT-23.32 ± 4.33 mm. Forty patients (80 eyes, 47%) were without TAO activity, with MTS of 19.28 ± 4.03, IOP of 16.6 ± 4.51 mm Hg, Hertel exophthalmos of 20.03 ± 3.84 mm and measured by CT-19.84 ± 4.47 mm. A correlation was detected between exophthalmos and: MTS, IOP, the activity and severity of TАО. High congruence was established between the two methods of measuring exophthalmos-CT and HE (Pearson correlation, r = 0.690, p = 0.000). Conclusion: Our results showed a high degree of consistency between Hertel exophthalmometry and multidetector CT for the evaluation of exophthalmos in patients with TAO. Exophthalmos is an important clinical feature and its measurement and monitoring over time assess the clinical course and outcome of treatment.

关键词： thyroid-associated Ophthalmopathy Hertel Exophthalmometry Computed Tomography

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