A 26-year-old female asked:
is it possible to pick up serious conditions that might cause fatal arrhythmia (long qt etc) in a routine ecg/holter even if an episode is not caught?
1 doctor answer • 2 doctors weighed in
Cardiac Electrophysiology 20 years experience
It's possible: It is possible to pick up a long QT syndrome, without any episodes of passing out or rhythm problems. Generally, you'd expect a QTc over 500 ms, before changes in treatment; however, you should see a heart rhythm specialist, or cardiologist, if QTc is unexpectedly prolonged. Medications, gender, and heart rate can also affect your QT interval. Holter measurements may be less reliable than ECG.
3.7k viewsReviewed >2 years ago
Last updated Sep 30, 2014
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