The main principles of managing patients with Graves’ disease in clinical practice

Abstract

BACKGROUND: Graves’ disease (GD) is a common cause of persistent thyrotoxicosis. In regions with adequate iodine intake, the incidence is 20–30 cases per 100,000 people. Modern treatment of GD includes antithyroid drugs, radioactive iodine therapy (RAI), and thyroidectomy. The choice of treatment strategy is based on the severity of thyrotoxicosis, the frequency of potential side effects, the availability of treatment options, and the likelihood of achieving sustained remission. Previous studies have demonstrated differences in approaches to diagnosis, treatment, and follow-up between countries and individual specialists.AIM: To conduct a survey on the current clinical practice of treating Graves’ disease in Russia.MATERIALS AND METHODS: An online survey was conducted among physicians in 2022-2023. The questions covered the principles of diagnosis, treatment, and dynamic observation of adult patients with Graves’ disease.RESULTS: The study involved 104 physicians of various specialties who treat patients with Graves’ disease. Approximately 99% of respondents chose the determination of thyroid-stimulating hormone receptor antibodies (TSHR-ab) to clarify the etiology of thyrotoxicosis, while only 60.6% of them chose thyroid scintigraphy. As the first-line treatment method, antithyroid drug therapy is chosen by 88.5%, while 13.5% of physicians use radioactive iodine therapy (RAI), and less than 1% of respondents refer patients to thyroidectomy. Thiamazole is most commonly used (99%), while propylthiouracil (PTU) is used in cases of allergy to thiamazole or during the first trimester of pregnancy. The «block-replace» scheme is preferred over the  «block» scheme, with 72.1% compared to 28.8%, respectively. The majority of physicians (95.2%) initiate therapy with moderate doses of thiamazole (20–30 mg) and PTU (200–300 mg). Most physicians conduct dynamic monitoring of liver transaminase levels (57.7%) and complete blood count (78.8%). Conservative therapy is prescribed for a period of 12–18 months (88.5%) or up to 24 months (10.6%). Before discontinuing antithyroid drug therapy, 89.4% of respondents monitor thyroid hormone levels, 82.7% monitor TSHR-Ab levels, and 47.1% perform thyroid ultrasound. Repeat courses of conservative therapy are prescribed for up to 61.5% of respondents. Approximately 63.5% of surveyed physicians reported difficulties in referring patients for radical treatment due to a limited number of specialized institutions. Physicians cited patient unwillingness and the need to postpone pregnancy (81.6% and 24.3% respectively) as the main inhibitory factors for RAI. Thyroidectomy was associated with patient unwillingness (69.2%), as well as physician fear of laryngeal paralysis (48.1%) and postoperative hypoparathyroidism (49%).CONCLUSION: The results of the study demonstrated that physicians in their practice generally adhere to international recommendations for the treatment of Graves’ disease.