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A 29-year-old female asked:

cardiologist read qtc if 453 in a toddler. is this something to worry about? getting it checked again in a few months

3 doctor answers10 doctors weighed in
Dr. Bennett Werner
Cardiology 44 years experience
That's normal: A qtc of 453 ms is normal, albeit, at the upper limits. Causes can include low potassium, calcium or magnesium (baby having any recent diarrhea or vomiting?). Many drugs can cause this too. Is there a family history of sudden, unexpected, premature death? If not, i wouldn't think much of this - long qt syndromes tend to run in families.
Dr. Dominic BLURTON
Pediatric Cardiology 22 years experience
Long qt: Assuming no concerning clinical history, i would say just follow up and don't worry about it for now.
Dr. Christine Norton
Family Medicine 24 years experience
There are medications you may want to avoid if you have a prolonged QT . This should be discussed with your doctor as well.
Sep 10, 2013
Dr. Peter Karpawich
Pediatric Cardiology 46 years experience
Probably not: Any family history of long qt syndrome? Was it actually personally read by the cardiologist or only computer-generated reading? Computer readings are often inaccurate. Follow-up can't hurt, but, at best, .453 is only borderline. Probably normal.

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Last updated Feb 26, 2016

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