question about heart block

[bbxx]

Does heart block always show up on an EKG or monitor or can it come and go?

[bbxx]

Thank you :)

[is_something_wrong]

AV conduction time changes with adrenaline and vagus/sympaticus tone and when I have sinus tachy my PQ is actually short. A Holter would usually capture AV blocks, as the heart rhythm is monitored also during sleep. Guess that's the best way to evaluate it.

[bbxx]

Thank you. Someone posted in neurology (I think) and the only symptoms were extreme fatigue and chest pain. I know that was what my brother had for years with his heart block which went undiagnosed but this person said she had an ekg and an echo I think so I was wondering if it could come and go (be missed on the ekg)?

[is_something_wrong]

Comes and goes. Often worse during rest, especially at sleep, where first degree and second degree type 1 are considered normal, according to the articles I've read about it. Often worse in athletes. A resting EKG can give a hint anyway, if the PQ time is borderline long you are more likely to get it.