abnormally prolonged QT interval of unknown etiologypowerful predictor of sudden cardiac death, with a five-fold increase in odds

"Rhythm abnormality of unknown origin strongly predicts sudden death risk in heart disease patients"

[phys.org]

Refers to "unexplained" long QT syndrome, a thing of acute interest to afibbers.

PeggyM

more about long QT syndrome from drugs, especially including common afib drugs:

"... cardiac arrest from a medication-induced heart rhythm problem is a rare but potentially catastrophic event in patients, according to a joint scientific statement from the American Heart Association and American College of Cardiology.


"(PhysOrg.com) -- Hospital care providers need to be more aware that cardiac arrest from a medication-induced heart rhythm problem is a rare but potentially catastrophic event in patients, according to a joint scientific statement from the American Heart Association and American College of Cardiology.

Read more at: [phys.org];

I had to stop taking my Celexa because it could react with one of my pills to create that dreaded QT problem.
Nancy

[my.clevelandclinic.org]