Sight-Threatening Thyroid Eye Disease: Role of Diabetes Mellitus and Interaction with Other Risk Factors. Issue 4 (July 2021)

• Record Type: Journal Article
• Authors: Rath, Suryasnata; Pattnaik, Monalisha; Tripathy, Devjyoti; Mohapatra, Samir; Panigrahy, Bharat; Ali, Mohammad Hasnat
• Is Part Of: Ophthalmic plastic and reconstructive surgery. Volume 37:Issue 4(2021)
• Publication Date: 2021-07
• Subjects: Eye -- Surgery -- Periodicals; Ophthalmic plastic surgery -- Periodicals; Reconstructive Surgical Procedures -- Periodicals; Ophthalmologic Surgical Procedures -- Periodicals; Ophthalmology -- Periodicals; Surgery -- Periodicals; 617.70592
• DOI: 10.1097/IOP.0000000000001871
• Languages: English
• ISSNs: 0740-9303

Abstract

Abstract : Purpose: The aim of the study was to investigate whether diabetes mellitus (DM) is an independent risk factor in sight-threatening thyroid eye disease (ST-TED) and explore the interaction of DM with other known risk factors in TED. Methods: This was a retrospective cohort study and included 202 consecutive TED patients presenting between 2013 and 2019. Data collected included demography, history of smoking, thyroid dysmetabolism, and presence of DM, TED-duration, activity and severity, best-corrected visual acuity (BCVA), and follow-up. Primary outcome measure was development of ST-TED and secondary outcome measures included change in BCVA, activity, and bilateral ST-TED. Results: Mean age of the cohort was 52.14 + 9.14 years and 74 (36%) were male. DM was present in 49 (24%) and a positive history of smoking in 65 (32%) TED patients. Cox's proportional hazards showed the presence of DM (hazard ratio [HR] 2.22; P = 0.02) and a positive history of smoking (HR 3.62; P = 0.003) were significant risk factors for development of ST-TED and dysthyroid optic neuropathy (DON). Older age was a risk factor (HR 1.05; P = 0.02) for DON. DM increased the risk of developing bilateral ST-TED (OR 4.14; P = 0.004). Median follow-up was 4 months (range 0.1–96 months). A linear mixed model to predict longitudinal interaction between risk factors, found TED patients in DM group were likely to have worsening of visual function and a positive history of smoking accentuated this adverse outcome. Conclusion: DM and smoking are major independent risk factors predictive of ST-TED. Coexisting DM either singularly or in combination with smoking may predict worsening of visual function in TED patients. Abstract : Diabetes mellitus is an independent risk factor for development of dysthyroid optic neuropathy which may be bilateral and either alone or in combination with positive history of smoking is predictive of irreversible worsening of visual function.