Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report

This paper describes the case of a 15-year-old male patient who exhibited chest distress and pain following an upper respiratory tract infection. Upon admission, the patient exhibited elevated levels of myocardial enzymes and troponin I. Electrocardiography revealed an acute inferior myocardial infa...

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Main Authors: Teng Fang Lai, ZhengJiang Liu
Format: Article
Language:English
Published: SAGE Publishing 2024-12-01
Series:SAGE Open Medical Case Reports
Online Access:https://doi.org/10.1177/2050313X241305257
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author Teng Fang Lai
ZhengJiang Liu
author_facet Teng Fang Lai
ZhengJiang Liu
author_sort Teng Fang Lai
collection DOAJ
description This paper describes the case of a 15-year-old male patient who exhibited chest distress and pain following an upper respiratory tract infection. Upon admission, the patient exhibited elevated levels of myocardial enzymes and troponin I. Electrocardiography revealed an acute inferior myocardial infarction. Coronary computed tomography angiography ruled out coronary stenosis; however, cardiac magnetic resonance imaging revealed myocardial congestion and edema. Subsequent examinations revealed increased thyroid hormone levels and decreased thyroid-stimulating hormone levels, which is consistent with the manifestations of hyperthyroidism. The patient was diagnosed with acute fulminant myocarditis accompanied by iodine-induced hyperthyroidism. The patient received no pharmacologic treatment for hyperthyroidism but was prescribed a low-iodine diet, medication, and supportive treatment. His myocardial enzymes and troponin I levels gradually decreased, his electrocardiography and echocardiography results improved, and his cardiac function returned to normal. The patient was discharged and advised to maintain a low-iodine diet. At the 6-month follow-up, the patient’s thyroid function and cardiac indicators had returned to normal. This case demonstrates that myocardial injury can result from myocarditis and iodine-induced hyperthyroidism and highlights the importance of closely monitoring and assessing thyroid function during treatment.
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spelling doaj-art-90f6c0cbc01c45398366ecfed8059fb02025-08-20T02:19:18ZengSAGE PublishingSAGE Open Medical Case Reports2050-313X2024-12-011210.1177/2050313X241305257Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case reportTeng Fang LaiZhengJiang LiuThis paper describes the case of a 15-year-old male patient who exhibited chest distress and pain following an upper respiratory tract infection. Upon admission, the patient exhibited elevated levels of myocardial enzymes and troponin I. Electrocardiography revealed an acute inferior myocardial infarction. Coronary computed tomography angiography ruled out coronary stenosis; however, cardiac magnetic resonance imaging revealed myocardial congestion and edema. Subsequent examinations revealed increased thyroid hormone levels and decreased thyroid-stimulating hormone levels, which is consistent with the manifestations of hyperthyroidism. The patient was diagnosed with acute fulminant myocarditis accompanied by iodine-induced hyperthyroidism. The patient received no pharmacologic treatment for hyperthyroidism but was prescribed a low-iodine diet, medication, and supportive treatment. His myocardial enzymes and troponin I levels gradually decreased, his electrocardiography and echocardiography results improved, and his cardiac function returned to normal. The patient was discharged and advised to maintain a low-iodine diet. At the 6-month follow-up, the patient’s thyroid function and cardiac indicators had returned to normal. This case demonstrates that myocardial injury can result from myocarditis and iodine-induced hyperthyroidism and highlights the importance of closely monitoring and assessing thyroid function during treatment.https://doi.org/10.1177/2050313X241305257
spellingShingle Teng Fang Lai
ZhengJiang Liu
Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
SAGE Open Medical Case Reports
title Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
title_full Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
title_fullStr Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
title_full_unstemmed Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
title_short Hyperthyroidism and fulminant myocarditis in an adolescent with iodine-induced hyperthyroidism: A case report
title_sort hyperthyroidism and fulminant myocarditis in an adolescent with iodine induced hyperthyroidism a case report
url https://doi.org/10.1177/2050313X241305257
work_keys_str_mv AT tengfanglai hyperthyroidismandfulminantmyocarditisinanadolescentwithiodineinducedhyperthyroidismacasereport
AT zhengjiangliu hyperthyroidismandfulminantmyocarditisinanadolescentwithiodineinducedhyperthyroidismacasereport