Cited by 172Ophthalmology and Eye DisordersThyroid Disorders and TreatmentsThyroid and Parathyroid Surgery

Does early administration of thyroxine reduce the development of Graves' ophthalmopathy after radioiodine treatment?

Tallstedt, Leif, Lundell, Göran, Blomgren, Henric, Bring, Johan·1994·European Journal of Endocrinology

Abstract

Tallstedt L, Lundell G, Blomgren H, Bring J. Does early administration of thyroxine reduce the development of Graves' ophthalmopathy after radioiodine treatment? Eur J Endocrinol 1994:130: 494–7. ISSN 0804–4643 The roles of thyroid hormones and thryotropin (TSH) in the development of Graves' ophthalmopathy are not clear. Some studies suggest a protective effect of thyroid hormones on experimental exophthalmos and an adverse effect of increased TSH levels. In September 1988 we introduced early thyroxine (T 4) administration after 131 I therapy for hyperthyroidism caused by Graves' disease. We carried out a retrospective study of records from all patients with this disease treated with 131 I for 4 years. During the first 2 years 248 patients were treated (group A). They received T 4 when the serum concentration of TSH and/or T 4 indicated hypothyroidism. During the next 2 years 244 patients were treated (group B). They were all given 0.05 mg of T 4 daily, starting 2 weeks after therapy, and 0.1 mg after a further 2 weeks. With a follow-up of 18 months, 45 patients (18%) in group A and 27 patients (11%) in group B developed or deteriorated in an already present ophthalmopathy (p = 0.03, relative risk = 1.64, 95% confidence interval = 1.05–2.55). Twenty-six patients in group A required specific therapy for the ophthalmopathy (e.g. antithyroid drugs, steroids, etc.) compared to 11 patients in group B (p = 0.02, relative risk = 2.33; 95% confidence interval = 1.18–4.60). Our results suggest that early administration of T 4 after 131 I therapy reduces the occurrence of Graves' ophthalmopathy. L Tallstedt, Department of Ophthalmology, Huddinge University Hospital, S-146 81 Huddinge, Sweden

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Crossref · 10.1530/eje.0.1300494

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  • Identified risk factors for GO include RAI therapy for hyperthyroidism, untreated hyperthyroidism, smoking, high serum pretreatment TRAb levels, and any delay in treating hypothyroidism after therapy for hyperthyroidism.

    “for GO are listed in Table 15, and the most pertinent ones to this discussion are RAI therapy for hyperthyroidism (531,532), untreated hyperthyroidism, smoking, high serum pretreatment TRAb levels (normal <1.75 IU/L, high risk for progression if >8.8 IU/L) (533), and any delay in treating hypothyroidism after therapy for hyperthyroidism (106,534).”
  • Two cohort studies in which patients received levothyroxine therapy early after RAI with the specific intent of preventing hypothyroidism noted that deterioration of GO rarely occurred (0%-2%).

    “Subsequently, two cohort studies in which patients received levothyroxine therapy early after RAI with the specific intent of preventing hypothyroidism noted that deterioration of GO rarely occurred (0%-2%) (534,536).”
  • High pretreatment levels of T3 and T4 were each reported to have a predictive role in GO, but these conclusions were not validated by subsequent studies.

    “High pretreatment levels of T 3 and T 4 were each reported to have a predictive role in GO, but these conclusions were not validated by subsequent studies (69,106,532,534), suggesting the possibility of higher TRAb values measured on less sensitive assays early-on being partly responsible for this variation.”

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Authors
Tallstedt, L., Lundell, G., Blomgren, H., & Bring, J.
Affiliations
  • Karolinska University Hospital (SE)
  • Uppsala University (SE)
Corresponding author
Tallstedt, Leif
Venue
European Journal of Endocrinology
Published
1994-05
Volume
130
Issue
5
Pages
494-497
ISSN
  • 0804-4643 (ISSN-L)
  • 1479-683X
OpenAlex
W2153640804
Cited by
171
References
0
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 2 · 2022: 5 · 2021: 3 · 2020: 5 · 2019: 8 · 2018: 4 · 2017: 1 · 2016: 11 · 2015: 7 · 2014: 6 · 2013: 8 · 2012: 13
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Ophthalmology and Eye Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
Graves' ophthalmopathy, thyroxine, radioiodine therapy, iodine-131, Graves' disease, hyperthyroidism, thyroid hormones, proptosis, prophylaxis, hypothyroidism
MeSH terms
Drug Administration Schedule, Exophthalmos, Female, Graves Disease, Humans, Hyperthyroidism, Iodine Radioisotopes, Male, Middle Aged, Prognosis, Retrospective Studies, Risk Factors, Thyroxine, Time Factors, Confidence Intervals

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