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J Electrocardiol. 2013 Mar-Apr;46(2):128-30. doi: 10.1016/j.jelectrocard.2012.10.007. Epub 2013 Feb 8.

Extreme but not life-threatening QT interval prolongation? Take a closer look at the neck!

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  • 12nd Department of Cardiology, Amalia Fleming General Hospital, Athens, Greece.

Abstract

We present the case of a 82-year-old woman with a history of total thyroidectomy who was admitted in hospital with severe hypocalcemia. A 12-lead surface ECG revealed atrial fibrillation along with an extremely prolonged QT interval of approximately 730ms. In the absence of any other possible cause of QT interval prolongation, hypocalcemia was attributed to surgical hypoparathyroidism and undue discontinuation of calcium supplementation. Surprisingly, no ventricular arrhythmias were recorded and calcium repletion was followed by normalization of QT interval.

Copyright © 2013 Elsevier Inc. All rights reserved.

PMID:
23399054
[PubMed - indexed for MEDLINE]
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