On message boards I often see people worrying that their QT is longer than it was on their ECG last year. This could be down to a number of factors but as long as there aren’t contributing factors to the prolongation, it is pretty irrelevant.
If I took a picture of your face 6 months ago, you may have been smiling; but you could have spent all day crying so that picture is just that, a moment in time. When an electrophysiologist looks at your ECG they look for much more than just your QTc. We know the role that beta blockers play so they may be adjusted to help maintain that heart rate:QT ratio but generally if you have congenital Long QT, your QT will be long… it’s in the title. Currently very few drugs reduce the QT interval – Mexiletine can for certain types but it isn’t a nice drug. Thryv Therapeutics are currently trialling a new drug which could reduce the QT so fingers crossed!
The Long Cutie 