UMEM Educational Pearls

Category: Cardiology

Title: short QT

Keywords: short QT, QT, QT interval, QTc (PubMed Search)

Posted: 2/27/2011 by Amal Mattu, MD (Updated: 1/26/2022)
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The long QT syndrome and causes of acquired long QT interval are well-known to most emergency physicians, but a short QT can be problematic as well. Short QT-syndrome is an inherited ion-channel disease that predisposes to ventricular dysrhythmias and sudden death. The QTc in these patients is generally < 340 msec. This condition is more common in children, and it should be considered in the differential diagnosis and evaluated on ECG in children presenting with syncope.