Largo, FL
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 answers • 10 doctors weighed in

Dr. Bennett Werneranswered
Cardiology 46 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.
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Dr. Dominic BLURTONanswered
Pediatrics - Cardiology 24 years experience
Long qt: Assuming no concerning clinical history, i would say just follow up and don't worry about it for now.
Created for people with ongoing healthcare needs but benefits everyone.
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Dr. Christine Norton commented
Family Medicine 26 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 Karpawichanswered
48 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.
Created for people with ongoing healthcare needs but benefits everyone.
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Last updated Feb 26, 2016
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