Radioactive iodine or surgery associated with increased survival in hyperthyroidism
2023-06-17
(Press-News.org) Hyperthyroidism treatment like radioactive iodine or surgery was associated with a decreased risk for death, according to research being presented Saturday at ENDO 2023, the Endocrine Society’s annual meeting in Chicago.
“Hyperthyroidism or an overactive thyroid gland is common, affecting up to 3% of the population, and is associated with long-term adverse cardiac and metabolic consequences. The optimal treatment choice remains unclear,” said Kristien Boelaert, M.D., Ph.D., a professor of endocrinology from the University of Birmingham in the United Kingdom.
Boelaert and colleagues identified 55,318 patients with newly diagnosed hyperthyroidism, treated with antithyroid drugs (ATD; 77.6%), radioiodine (14.6%), or thyroidectomy (7.8%) from a U.K. population-based electronic health record database for the EGRET Study.
They examined all-cause mortality, major cardiovascular events (MACE: cardiovascular death, heart failure, or stroke), and post-treatment obesity. The average follow-up was roughly 12 years.
Those treated with antithyroid drugs had an estimated mean survival of 12 years, according to the data. Survival increased in those treated with radioiodine by 1.7 years and thyroidectomy by 1.1 years. People treated with antithyroid drugs had an estimated 10.2% risk of MACE, which significantly increased by an additional 1.3% with radioiodine but not with thyroidectomy.
These definitive treatments were associated with a significantly increased survival, despite a small increased risk for overall weight gain. For example, thyroidectomy was associated with an increased likelihood of obesity in both men and women. Radioiodine treatment led to increased obesity risk in women, but not in men.
“Our findings are important and will inform decision-making processes for patients and clinicians when considering optimal treatment options and are likely to impact clinical practice guidelines in the future,” Boelaert said.
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The Society has more than 18,000 members, including scientists, physicians, educators, nurses and students in 122 countries. To learn more about the Society and the field of endocrinology, visit our site at www.endocrine.org. Follow us on Twitter at @TheEndoSociety and @EndoMedia.
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[Press-News.org] Radioactive iodine or surgery associated with increased survival in hyperthyroidism
