Management of Subacute Thyroiditis Symptoms

Treatment Approach

Beta-blockers, such as atenolol or propranolol, are the first-line treatment for symptomatic relief in subacute thyroiditis, with additional therapies based on symptom severity, as recommended by the American College of Clinical Oncology 1, 2
For patients with mild symptoms, continue immune checkpoint inhibitors, provide beta-blockers for symptomatic relief, and monitor thyroid function every 2-3 weeks to detect transition to hypothyroidism, according to the American College of Clinical Oncology 1, 2
For patients with moderate symptoms, consider holding immune checkpoint inhibitors, initiate beta-blockers, provide hydration and supportive care, and consider endocrine consultation, as suggested by the American College of Clinical Oncology 1, 2
For patients with severe symptoms, hold immune checkpoint inhibitors, mandatory endocrine consultation, beta-blocker therapy, hydration, and supportive care, and consider hospitalization in severe cases, as recommended by the American College of Clinical Oncology 1, 2

Monitor thyroid function every 2-3 weeks after diagnosis to watch for transition to hypothyroidism, which is the most common outcome, according to the American College of Clinical Oncology 1, 2
For persistent thyrotoxicosis, refer to endocrinology, and consider TSH receptor antibody testing if clinical features suggest Graves' disease, as suggested by the American College of Clinical Oncology 1, 2

For elderly patients or those with cardiac disease, use lower starting doses of thyroid replacement if hypothyroidism develops, as recommended by the American College of Clinical Oncology 3
In patients with both adrenal insufficiency and hypothyroidism, steroids should always be started prior to thyroid hormone to avoid adrenal crisis, according to the Society for Immunotherapy of Cancer 4