Contrast induced hyperthyroidism due to iodine excess

Iodine induced hyperthyroidism is a thyrotoxic condition caused by exposure to excessive iodine. Historically this type of hyperthyroidism has been described in areas of iodine deficiency. With advances in medicine, iodine induced hyperthyroidism has been observed following the use of drugs containi...

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Bibliographic Details
Published in:BMJ case reports 2009, Vol.2009 (nov03 1), p.bcr0620091982-bcr0620091982
Main Authors: Mushtaq, Usman, Price, Timothy, Laddipeerla, Narsing, Townsend, Amanda, Broadbridge, Vy
Format: Article
Language:English
Subjects:
Australasia
Biosynthesis
Cardiac arrhythmia
Drugs
Hyperthyroidism
Iodine
Male
Medical imaging
Other Full Case
Patients
Substance abuse treatment
Thyroid diseases
White
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Summary:Iodine induced hyperthyroidism is a thyrotoxic condition caused by exposure to excessive iodine. Historically this type of hyperthyroidism has been described in areas of iodine deficiency. With advances in medicine, iodine induced hyperthyroidism has been observed following the use of drugs containing iodine—for example, amiodarone, and contrast agents used in radiological imaging. In elderly patients it is frequently difficult to diagnose and control contrast related hyperthyroidism, as most of these patients do not always present with typical signs and symptoms of hyperthyroidism. Treatment can be very challenging as drugs commonly used to treat hyperthyroidism have little effect on already formed thyroid hormone due to iodine excess.
ISSN:1757-790X
1757-790X
DOI:10.1136/bcr.06.2009.1982