Q:
We got propably lqt syndrome 1 or 2 in our family. We undergo genetic tests these days. It was discovered incidentally on my routine ECG, than confirmed on another. I´m now 25, I had only 2 presyncopes/no collapse up to now.I have been played strenous sport all my life including soccer, basketball, snowboarding, I played ice hockey for 10 years. Almost every time I was even the most active player on the pitch. Plus I had experienced stuff like fights, big stresses and big parties with lot of alcohol or marijuana, always without problems.
My qtc is around 460-470, my cardio said it´s not that dangerous unless it´s under 500 ms. I´m not takin beta blockers so far, but he recommended me to restrict sport activities.
I know, you can give me only informative advices, which I must consult with doc personally. I just wonder what do you think about all of it? Do you think I still could be in danger despite my age and all things above? But mainly, which treshold for the heart rate during exercise you could recommend me?
A:
Your QTc is too long and you are at risk. By the way, it is more dangerous when your QTc is >500! The best way to go forward is to check your heart rate etc. with a stress ECHO. As far as management is concerned, it depends on the results.
Read more here:
http://www.cardiac-risk-assessment.com/ca-blog/what-is-qtc-and-long-qt-syndrome-
The reason to be concerned has to do with this:
http://www.cardiac-risk-assessment.com/heart-information/heart-arrhythmia/sudden
http://www.cardiac-risk-assessment.com/heart-information/heart-arrhythmia/sudden
http://www.cardiac-risk-assessment.com/heart-information/heart-arrhythmia/sudden
For testing:
http://www.cardiac-risk-assessment.com/heart-disease-diagnosis/exercise-stress-t
Hope this helps,
Dr T
http://www.cardiac-risk-assessment.com/