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Case Reports in Cardiology
Volume 2012 (2012), Article ID 161450, 3 pages
http://dx.doi.org/10.1155/2012/161450
Case Report

Amiodarone-Induced Hypothyroidism Presenting as Cardiorenal Syndrome

1Department of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
2Division of Nephrology and Hypertension, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA

Received 6 March 2012; Accepted 14 May 2012

Academic Editors: H. Kitaoka and A. J. Mansur

Copyright © 2012 Evan L. Hardegree and Robert C. Albright. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Here we present the case of a 90-year-old man with chronic heart and renal failure who was admitted with what appeared to be a simple heart failure exacerbation. However, further investigation led to the diagnosis of profound amiodarone-induced hypothyroidism as the cause of his acute decompensation, highlighting the importance of a broad differential diagnosis and thorough investigation.