Primary hypothyroidism presenting with Torsades de pointes type tachycardia: a case report

Hypothyroidism can manifest with cardiac abnormalities, often consisting of a combination of morphologic and functional changes. Low voltage, sinus bradycardia, and slowed conduction are usually found on electrocardiography.There are few reports of occurrence of torsades de pointes as the first presentation of long QT syndrome in the course of hypothyroidism.

Case presentationIn present report we briefly describe a 50-years-old woman with severe hypothyroidism who presented with presyncope, prolongation of the QT interval, and polymorphic ventricular tachycardia (torsades de pointes).

Conclusion: Our patient responded well to treatment with levothyroxine and QT intervals normalized and ventricular tachycardia was abolished two months after levothyroxine therapy.

Author: Mohammad Shojaie and Ahad Eshraghian
Credits/Source: Cases Journal 2008, 1:298

Published on: 2008-11-06

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