Hello@Lisa Lucier, I had prolonged QT-interval, it is drug-related, while on Cardarone (100mg on alternate days) with only asymptomatic bradycardia, for 4-5 years. Recently, it has been stopped. My indication was multiple PVCs on EKG. The there is no ventricular atypia,
and HR/PR=50-60/min. I am also on Carvedilol 10mg, for stabilizing BP, at 140/70, so bradycardia is continuing(for 2 years).Thanks for
an interesting post.