Borderline/high normal QTC on ECG

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New Member

Date Joined Mar 2012
Total Posts : 3
   Posted 3/20/2012 8:54 AM (GMT -6)   
Hi Everyone
I have occassionally had the odd palpitation when exercising and so mentioned it to my doctor who then sent me for an ecg and a treadmill ecg. Still awaiting the results of the treadmill test but as it was 4 weeks ago I am assuming if there was anything bad on it the hospital would have contacted my doctor before now.
However, re my standard ECG I saw a copy of the letter the hospital sent my doctor and it said heart rate was 90bpm with a QTC of 430.
I know googling is dangerous but everything I see on the web suggests that 430 is borderline prolonged as normal rates are 429 and below, although some other sources seem to think that 440 is the cutoff. Either way, 430 seems a bit too close to abnormal for comfort. Am assuming the doctors were not concerned as nothing has been said about it and the arrhymia nurse who did the test didn't say there was anything wrong at the time.
I just wondered whether a QTC of 430 alone is something to be worried about, or whether I should trust that the doctors seem to think the ecg and (hopefully) treadmill test are normal. I do a lot of exercise, mainly swimming, and worrying about Long QT is kind of taking the fun out of training!
So should I get a specilist to review things or is 430 nothing to get concerned about?
Thank you!

Elite Member

Date Joined Apr 2007
Total Posts : 32602
   Posted 3/21/2012 9:34 AM (GMT -6)   
Hello and welcome to HealingWell.  4 weeks is a long time to wait for you treadmill test results.  Also we are not able to interpret test results here in the forum as we are not medical professionals.  Please do call your Dr. asking what the signitigance is of your QTC reading is. 
As you posted,  if something alarming was found on your tests you should have heard from the Dr.  Do be your own best advocate and make the call to ease your mind.
Moderator: Anxiety, Osteoarthritis,
GERD/Heartburn and Heart/Cardiovascular Disease.

"Life is not about waiting for the storms to pass...
It's about learning how to dance in the rain."~ Vivian Greene

New Member

Date Joined Jun 2012
Total Posts : 2
   Posted 6/18/2012 7:42 PM (GMT -6)   
I too exercise a lot and this has been a problem for me as well. My cardiologist said go live your life but it's worrisome because on one EKG I did show a prolonged qt. please let me know what you found out.

New Member

Date Joined Mar 2012
Total Posts : 3
   Posted 7/10/2012 6:59 PM (GMT -6)   
What was your QTC then?
I never got to the bottom of it. I still get palpitations. Some are just ectopic beats, others are like a brief flutter in my chest and they make me cough. All I know is that I had 2 EKGs an echo, and a stress test and no doctor rang me back to say I was going to die so I assume everything's ok and haven't really worried about it much since. I'm guessing with a borderline qtc but no passing out or family history the doctor's aren't worried.
Managed to worry myself my reading google as some sites say 430ms is the cutoff for diagnosing long qt. I just assume that the cardiologist who I'm guessing reviewed my test results got his training at med school and not Google and probably knows more than me!
It's good you got checked but of your cardiologist says you are fine, I'd be reassured that they're probably right! Did you ask the doc about your QTC measurement and did they reassure you? If not mayve just ring them and ask to clear your mind, then forget about it and live your life!
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