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Thyroid-associated ophthalmopathy (TAO) is common in Graves' disease. However, to date, no standard treatment has been established for TAO. The present study aimed to assess peribulbar injection of corticosteroids for TAO treatment as well as factors affecting therapeutic effectiveness. A retrospective cohort study was performed at West China Hospital, Sichuan University (Chengdu, China). Patients with TAO were administered peribulbar injection of triamcinolone acetonide and dexamethasone monthly. Ocular signs after each injection were assessed until the end of treatment. All patients were followed up for at least six months. Best corrected visual acuity, proptosis values, eye motility assessed by the Hess chart, as well as eyelid width and downward movement were determined. In addition, clinical data were retrospectively reviewed to explore factors affecting therapeutic effectiveness by logistic regression analysis. In the present study, 386 patients with TAO (515 eyes) were evaluated; 71.37% of cases of eyelid swelling were relieved and upper eyelid retraction was improved in 47.58% of affected patients. Eye movement disorders, diplopia and strabismus were all alleviated to varying degrees, with few adverse reactions. Logistic regression analysis demonstrated that therapeutic effectiveness was relatively lower in males [odds ratio (OR)=0.32, P=0.001] and patients with thyroid dysfunction (OR=0.41, P=0.002), and that non-smokers had a higher odds of substantial improvement (OR=4.62, P=0.008). The duration of TAO was not significantly associated with the clinical outcome. Patients with reduced disease severity and elevated clinical activity score exhibited higher effectiveness (all P&lt;0.05). In conclusion, peribulbar injection of corticosteroids is effective in treating mild to moderate TAO, with the therapeutic response affected by gender, smoking and disease severity.

experimental and therapeutic medicine

Peribulbar injection of glucocorticoids for thyroid-associated ophthalmopathy and factors affecting therapeutic effectiveness: A retrospective cohort study of 386 cases