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Long qt - normal ECG

heartfelt1
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Has anyone been told that you have LQT by genetic testing only and your QT interval is normal? If so, how are you treated?

Also, have you been told exactly what your genetic mutation/variation is and if the exact location of the mutation can help identify risk? I have been reading alot and it seems that some physicians are applying this new information into their bedside practice. I am wondering if your doctors talk to you about your "mutation location". If not, you should begin asking. Please share what you know about this . Thanks!

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Dehydration Stress

1 reply

kbauhs

My form of LQTS (type 2) is the result of a mutation of the KCNH2 gene that affects how the heart uses potassium. I was unaware I had this condition until I suffered a cardiac arrest. The problem didn't show up on an ECG or echocardiogram, which made it hard to diagnose at first. Ultimately, answers came from genetic testing. Getting this diagnosis has been very helpful. There are several triggers that are specific to Type 2 LQTS:

Emotional stress
Loud, sudden noises
Certain medications (see www.QTDrugs.org)
Low potassium, magnesium levels - or dehydration

I mitigate these by getting plenty of rest, watching my stress levels, drinking more water, eating potassium rich foods, etc. I also don't take any medication without first checking out the list.

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