scholarly journals Radioiodine therapy for Graves' disease as a risk factor of endocrine ophthalmopathy

2009 ◽  
Vol 55 (1) ◽  
pp. 51-55
Author(s):  
M S Sheremeta ◽  
I M Belovalova ◽  
N Yu Sviridenko

In 1973 and 1976 R. Wasnich and R. Jackson described 2 cases of endocrine ophthalmopathy (EO) that occurred after external irradiation of the anterior surface of the neck due to a tumor (Hodgkin's lymphoma). Further observations showed that treatment of Graves' disease with radioactive iodine (131I) can worsen the course of EO. So, L. De Groot et al., Observing 264 patients after exposure to 131I for Graves' disease, found progression of EO in 4% of patients after the 1st course of therapy and in 12% after subsequent sessions. L. Bartalena et al. observed the appearance or significant progression of EO in 15% of 150 patients treated with 131I. At the same time, against the background of glucocorticoid therapy, only 10% of patients worsened the course of EO. Other studies have shown that the progression of EO after treatment with 131I without glucocorticoid administration was observed in 18-30% of cases. Along with this, it is believed that 131I does not affect the incidence of clinical symptoms in the orbit, and hypothyroidism that occurs after it does not lead to the progression of eye symptoms. The relationship between treatment and the onset or progression of EO is not clear. Nevertheless, there is evidence of an adverse effect of an elevated level of antibodies to the thyroid stimulating hormone receptor (TSH) in the blood serum after 1131I training for EO. This review is devoted to a review of the problem presented.

2009 ◽  
Vol 55 (2) ◽  
pp. 19-22
Author(s):  
M S Sheremeta ◽  
I M Belovalova ◽  
N Yu Sviridenko

In 1973 and 1976 2 cases of endocrine ophthalmopathy (EO) after external irradiation of the anterior surface of the neck due to a tumor (Hodgkin's lymphoma) was described. Further observations showed that treatment of Graves' disease (BG) with radioactive iodine (131I) can worsen the course of EO. So, L. De Groot et al., Observing 264 patients after exposure to 131I for BG, found progression of EO in 4% of patients after the 1st course of therapy and in 12% after subsequent sessions. Later the appearance or significant progression of EO in  patients treated with 131I has been observed. Some studies have shown that the progression of EO after treatment with 131I without glucocorticoids administration can be observed in 18–30% of cases. Along with this, there is an opinion that 131I does not affect the incidence of clinical symptoms in the orbit and that hypothyroidism that occurs after it does not lead to the progression of eye symptoms. The relationship between treatment and the onset or progression of EO is not clear. Nevertheless, there is evidence of an adverse effect of an elevated level of antibodies to the thyroid stimulating hormone receptor in the blood serum after 131I training for EO.


2018 ◽  
Vol 20 (1) ◽  
pp. 37
Author(s):  
Sharmin Quddus ◽  
Fatima Begum ◽  
Nasreen Sultana ◽  
Rahima Perveen ◽  
Tapati Mandal ◽  
...  

<p><strong>Objective:</strong> The modified fixed doses of radioactive iodine (RAI) in different types of hyperthyroidism had been practiced at National Institute of Nuclear Medicine &amp; Allied Science (NINMAS) according to Society of Nuclear Medicine Bangladesh (SNMB) protocol since 2002 which was upgraded in 2015. The objective of the study was to observe the treatment outcome in modified fixed dose on previous protocol. Patients and Methods: In the present study the outcome of radioiodine therapy of hyperthyroid patients was retrospectively evaluated in 1349 consecutive primary hyperthyroid patients treated from January 2010 to December 2014 at NINMAS. Diagnosis of hyperthyroidism was done by thyroid function test; thyroid stimulating hormone (TSH), free triiodothyronine (FT3)   &amp; free thyroxine (FT4), 99m Technetium scan, thyroid radioiodine uptake and ultrasound imaging of thyroid gland. All patients received a fixed dose (8-29 m Ci) of radioactive iodine (RAI) depending on types of hyperthyroidism, visual assessment of gland size and severity of disease at diagnosis. They were followed up at 2 months of therapy, then every three months intervals for first year and thereafter 6 monthly up to 5 years or as needed during fluctuation of thyroid function.</p><p><strong>Results:</strong> Among the study population, 832 patients had diffuse toxic goiter (Graves’ disease), 369 patients were diagnosed as toxic multinodular goiter and 148 patients with single toxic nodule. At one year follow-up, permanent hypothyroidism occurred in 61.62% of patients and the cumulative incidence of hypothyroidism progressively increased up to 79.25% after 5 years. Cure or success of RAI therapy was considered as attainment of euthyroid state or hypothyroid state. About 11.26 % patients received more than single dose.</p><p><strong>Conclusion:</strong> Fixed dose RAI therapy is very much cost effective mode of treatment for primary hyperthyroidism with ~89% success by giving single dose.</p><p>Bangladesh J. Nuclear Med. 20(1): 37-40, January 2017</p>


2021 ◽  
Vol 14 (7) ◽  
pp. e243313
Author(s):  
Clara Cunha ◽  
Catia Ferrinho ◽  
Catarina Saraiva ◽  
João Sequeira Duarte

We report a case of a 46-year-old woman who presented with a midline neck mass 2 years after total thyroidectomy for Graves’ disease. Despite levothyroxine treatment withdrawal, she remained biochemically with subclinical hyperthyroidism. Her thyroid stimulating hormone receptor antibodies were consistently elevated. Neck ultrasonography revealed an infrahyoid solid nodule and pertechnetate scintigraphy confirmed an increased uptake at the same level, without any uptake in the thyroid bed. Treatment with methimazole 5 mg/day was initiated with clinical improvement and achievement of euthyroidism. After that, she received 10 mCi of radioactive iodine. Since then, she experienced regression of the neck mass and is doing well on a replacement dose of levothyroxine. Recurrence of Graves’ disease in ectopic thyroid following total thyroidectomy is extremely rare. This diagnose should be considered in patients who underwent total thyroidectomy and remained with thyrotoxicosis despite decreasing the levothyroxine dose.


2011 ◽  
Vol 57 (3) ◽  
pp. 17-20
Author(s):  
M S Sheremeta ◽  
N Iu Sviridenko ◽  
I M Belovalova ◽  
P I Garbuzov

The primary objective of the present work was to study the clinical course of endocrine ophthalmopathy (EOP) following radioiodine therapy (RIT) of Graves' disease (GD) and depending on its effect (development of post-radiation hypothyroidism). The secondary objective was to determine risk factors of EOP progression after radioiodine therapy. This prospective study included 38 patients (76 eyes) allocated to two groups. The patients of group 1 (n=19/38 eyes) presented with thyrotoxicosis at each visit and continued to use thyrostatic agents; those in group 2 (n=19/38 eyes) had hypothyroidism at its early stages (3 and 6 months) and were given substitution therapy with levothyroxin. The development of post-radiation hypothyroidism was shown to strongly influence the clinical course of EOP. In the patients of group 1, EOP remained active throughout the entire observation period (12 months) in the absence of appreciable variations of its integral severity index. In group 2, the same index decreased significantly, but active forms of EOP could be detected by the time of onset of hypothyroidism (6 months) (p=0.0000). After 12 months, the level of anti-TSH receptor antibodies in the patients of group 1 was significantly higher than in those of group 2 (10.8±8.3 and 2.9±2.0 respectively, p=0.0003). The regression rate of EOP symptoms following radioiodine therapy (RIT) of Graves' disease was a function of the efficacy of thyroid 131I radioablation. It is concluded that persistence of anti-TSH receptor antibodies was responsible for the deterioration of the clinical picture of endocrine ophthalmopathy after radioiodine therapy.


2003 ◽  
Vol 37 (7-8) ◽  
pp. 1100-1109 ◽  
Author(s):  
Darcie D Streetman ◽  
Ujjaini Khanderia

OBJECTIVE: To review the etiology, diagnosis, and clinical presentation of Graves disease and provide an overview of the standard and adjunctive treatments. Specifically, antithyroid drugs, β-blockers, inorganic iodide, lithium, and radioactive iodine are discussed, focusing on current controversies. DATA SOURCES: Primary articles were identified through a MEDLINE search (1966–July 2000). Key word searches included β-blockers, Graves disease, inorganic iodide, lithium, methimazole, and propylthiouracil. Additional articles from these sources and endocrinology textbooks were also identified. We agreed to include articles that would highlight the most relevant points, as well as current areas of controversy. DATA SYNTHESIS: Graves disease is the most common cause of hyperthyroidism. The 3 main treatment options for patients with Graves hyperthyroidism include antithyroid drugs, radioactive iodine, and surgery. Although the antithyroid drugs propylthiouracil (PTU) and methimazole (MMI) have similar efficacy, there are situations when 1 agent is preferred. MMI has a longer half-life than PTU, allowing once-daily dosing that can improve patient adherence to treatment. PTU has historically been the drug of choice for treating pregnant and breast-feeding women because of its limited transfer into the placenta and breast milk. Adjuvant therapies for Graves disease include β-blockers, inorganic iodide, and lithium. β-Blockers are used to decrease the symptoms of hyperthyroidism. Inorganic iodide is primarily used to prepare patients for thyroid surgery because of its ability to decrease the vascularity of the thyroid gland. Lithium, which acts in a manner similar to iodine, is not routinely used due to its transient effect and the risk of potentially serious adverse effects. In the US, radioiodine therapy has become the preferred treatment for adults with Graves disease. It is easy to administer, safe, effective, and more affordable than long-term treatment with antithyroid drugs. Hypothyroidism is an inevitable consequence of radioiodine therapy. Radioiodine is contraindicated in pregnant women because it can damage the fetal thyroid gland, resulting in fetal hypothyroidism. Bilateral subtotal thyroidectomy, which was once the only treatment available, is now performed only in special circumstances. In addition to the normal risks associated with surgery, laryngeal nerve damage, hypoparathyroidism, and hypothyroidism can occur following that procedure. CONCLUSIONS: Despite extensive experience with medical management, controversy prevails regarding choosing among the various drugs for treatment of Graves disease. None of the treatment options, including antithyroid drugs, radioiodine, and surgery, is ideal. Each has risks and benefits, and selection should be tailored to the individual patient.


2011 ◽  
Vol 57 (2) ◽  
pp. 23-26 ◽  
Author(s):  
N Iu Sviridenko ◽  
V G Likhvantseva ◽  
I M Belovalova ◽  
M S Sheremeta ◽  
K I Tabeeva

A total of 139 patients (278 eyes) presenting with Graves' disease (GD) and endocrine ophthalmopathy (EOP) were examined. The age of 35 men and 104 women ranged from 17 to 71 years. All of them were tested for the functional activity of the thyroid gland and underwent standard ophthalmologic examination; anti-TSH receptor antibodies were measured. Both the activity and severity of EOP were verified as recommended by the European Group on Graves' Orbitopathy (EUGOGO) It was shown that the frequency of detection of anti-TSH receptor antibodies and their titers in patients with GD and EOP depended on the activity of the intraorbital process and the severity of EOP manifestations. The functional state of the thyroid gland also influenced the level of anti-TSH receptor antibodies level during the active phase unlike that in the inactive phase. The in-depth analysis of the relationship between the level of anti-TSH receptor antibodies and clinical characteristics of either EOP (activity, severity, manifestation of selected clinical symptoms) or GD (thyrotoxicosis, euthyroidism, hypothyroidism) demonstrated the possibility to use these characteristics as the factors predicting the severity and outcome of EOP. Also, they may be helpful for the choice of a therapeutic strategy for the treatment of such patients.


2019 ◽  
Vol 8 (6) ◽  
pp. 754-763 ◽  
Author(s):  
Guoquan Zhu ◽  
Yuying Deng ◽  
Liqin Pan ◽  
Wei Ouyang ◽  
Huijuan Feng ◽  
...  

The goal of this study was to explore the relationship of the BRAFV600E mutation with clinicopathologic factors and evaluate the effect of radioactive iodine (RAI) therapy in a large group of intermediate- and high-risk papillary thyroid cancer (PTC) patients with the BRAFV600E mutation and without distant metastases. We collected data for PTC patients who underwent total or near-total thyroidectomy and RAI treatment in our hospital from January 2014–December 2017. There were 1220 PTC patients who met the criteria, and the BRAFV600E mutation was observed in 979 of them (80.2%). Multivariate analysis identified that the BRAFV600E mutation remained independently associated with age at diagnosis, and bilaterality (OR = 1.023, 95% CI = 1.012–1.039, P < 0.001; OR = 1.685, 95% CI = 1.213–2.341, P = 0.002, respectively). In addition, the patients with bilateral PTCs had a higher prevalence of extrathyroid invasion, capsular invasion and fusion of metastatic lymph nodes than the unilateral PTC patients. The response to RAI therapy was evaluated in both the entire series and the patients with a high recurrence risk; no significant difference was discerned between the BRAFV600E mutation and the wild-type groups (P = 0.237 and P = 0.498, respectively). To summarize, our results confirmed that PTC patients with the BRAFV600E mutation exhibit more aggressive characteristics. In addition, the patients with bilateral PTC have a higher incidence of extrathyroid invasion. Moreover, BRAFV600E mutation PTC patients did not show a poorer clinical response after postsurgical RAI therapy, suggesting that RAI therapy may improve the general clinical outcome of these patients.


2018 ◽  
Vol 31 (2) ◽  
pp. 159-165 ◽  
Author(s):  
Fereidoun Azizi ◽  
Atieh Amouzegar

Abstract Background: Diffuse toxic goiter accounts for about 15% of all childhood thyroid diseases. There is great controversy over the management of Graves’ disease in children and adolescents. This article reports our experience in 304 children and juvenile patients with Graves’ disease. Methods: Between 1981 and 2015, 304 patients aged 5–19 years with diffuse toxic goiter were studied, of whom 296 patients were treated with antithyroid drugs (ATD) for 18 months. Patients with persistent or relapsed hyperthyroidism who refused ablative therapy with surgery or radioiodine were managed with continuous methimazole (MMI) treatment. Results: In 304 patients (245 females and 59 males), the mean age was 15.6±2.6 years. After 18 months of ATD therapy, 37 remained in remission and of the 128 who relapsed, two, 29 and 97 patients chose surgery, continuous ATD and radioiodine therapy, respectively. Of the 136 patients who received radioiodine, 66.2% became hypothyroid. Twenty-nine patients received continuous ATD therapy for 5.7±2.4 years. The mean MMI dose was 4.6±12 mg daily, no serious complications occurred and all of them remained euthyroid during the follow-up. Less abnormal thyroid-stimulating hormone (TSH) values were observed in these patients, as compared to patients who were on a maintenance dose of levothyroxine after radioiodine induced hypothyroidism. Conclusions: Original treatment with ATD and subsequent radioiodine therapy remain the mainstay of treatment for juvenile hyperthyroidism. Continuous ATD administration may be considered as another treatment modality for hyperthyroidism.


2001 ◽  
Vol 40 (01) ◽  
pp. 15-22 ◽  
Author(s):  
K. Schomäcker ◽  
T. Fischer ◽  
W. Eschner ◽  
M.I. Gaidouk ◽  
H. Schicha

Summary Aim: The change of both amount and chemical forms of radioiodine exhaled in the air of rooms with patients on the therapy ward should be investigated depending on radioactivity applied, time after application, and kind of thyroid disease. Methods: The air of ward-rooms of 62 patients with thyroid carcinoma, Graves’ Disease, and autonomy which received different therapy doses, was investigated with an portable constant air flow sampler. Different chemical iodine species (organic, elemental, aerosol bound) were collected during 8 hr in various filters until 3 days after application of the radioiodine capsule, according to their chemical form. The radioactivity in the filters was measured with a well counter on defined time points after application. Results: The radioactivity exhaled was between 0,008 and 0,03% related to activity of radioiodine applied. The percentage of radioiodine exhaled related to the activity applied, differed significantly depending on disease and changed as follows: Grave’s Disease > autonomy > carcinoma. The exhalation of radioiodine became stronger with increasing applied activities and showed an exponential decrease with time. The most part of radioiodine was present in organic bound form. This organic portion decreased with time in favour of the other iodine species. Conclusion: The degree of accumulation of radioiodine orally applied within thyroid seems to be in direct proportion to the extend of its exhalation. Further measurements directly in the breathing air of RIT-patients are necessary, in order to clarify the relationship between degree of thyroid uptake and quantity as well as chemical form of radioiodine exhaled.


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