Often permanent: I have only seen it once in a patient who developed LBBB with a viral infection/myocarditis and several weeks following resolution of the illness, the LBBB also resolved. Otherwise, al other cases so far have been "permanent finding." it is not a dangerous thing, just a bit difficult to interpret when you are actively having issues with your heart such as a heart attack. Worry not anita. Good luck.
Answered 2/18/2015
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