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Sudden cardiac arrest as a rare presentation of myxedema coma: case report.

Authors
  • Salhan, Divya1
  • Sapkota, Deepak1
  • Verma, Prakash1
  • Kandel, Saroj1
  • Abdulfattah, Omar1
  • Lixon, Antony1
  • Zwenge, Deribe1
  • Schmidt, Frances1
  • 1 Department of Pulmonary Medicine, Interfaith Medical Centre, Brooklyn, NY, USA.
Type
Published Article
Journal
Journal of Community Hospital Internal Medicine Perspectives
Publisher
Informa UK (Taylor & Francis)
Publication Date
Jan 01, 2017
Volume
7
Issue
5
Pages
318–320
Identifiers
DOI: 10.1080/20009666.2017.1374110
PMID: 29147476
Source
Medline
Keywords
License
Unknown

Abstract

Myxedema coma is a decompensated hypothyroidism which occurs due to long-standing, undiagnosed, or untreated hypothyroidism. Untreated hypothyroidism is known to affect almost all organs including the heart. It is associated with a decrease in cardiac output, stroke volume due to decreased myocardial contractility, and an increase in systemic vascular resistance. It can cause cardiac arrhythmias and the most commonly seen conduction abnormalities are sinus bradycardia, heart block, ventricular tachycardia, and torsade de pointes. The authors report a case of an elderly man who presented with sudden cardiac arrest and myxedema coma and who was successfully revived.

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