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A Predictive Model for Graves' Disease Recurrence After Antithyroid Drug Therapy: A Retrospective Multicenter Cohort
Omar El Kawkgi1, David Toro-Tobon2, Freddy J K Toloza3
1Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Mayo Clinic, Rochester, Minnesota; Department of Endocrinology, Mayo Clinic Health System, Eau Claire, Wisconsin.
Predicting Graves' disease recurrence after antithyroid drug treatment is vital. A new model using age and FT4 levels can help predict recurrence risk within one year of stopping treatment.
Area of Science:
- Endocrinology
- Clinical Medicine
- Pharmacology
Background:
- Graves' disease (GD) is a common autoimmune disorder leading to hyperthyroidism.
- Antithyroid drugs (ATDs) are a primary treatment, but recurrence after cessation is frequent.
- Predicting recurrence is essential for personalized treatment strategies.
Purpose of the Study:
- To identify factors predicting recurrence of Graves' disease after antithyroid drug cessation.
- To develop a predictive model for GD recurrence risk within the first year post-treatment using routine clinical parameters.
Main Methods:
- Observational cohort study using electronic health records from 3 U.S. academic centers.
- Analysis of demographic and clinical characteristics of patients with GD treated with ATDs.
- Development and validation of a predictive model and nomogram for GD recurrence.
Main Results:
- A total of 523 patients were included; 211 discontinued ATDs, with 142 used for model development.
- Recurrence within one year was observed in 37.44% of patients who discontinued ATDs.
- Increased age (per decade) and higher baseline free thyroxine (FT4) levels were significant predictors of recurrence.
Conclusions:
- A practical model using baseline age and FT4 levels can predict Graves' disease recurrence risk after ATD cessation.
- This model aids in initial therapeutic decision-making for patients with GD.
- Further research is needed to refine predictive models and identify additional recurrence factors.
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