Heart block during pregnancy

Submitted by Dr T on May 31, 2012 - 10:19am
in
Question: 

Dear dr, im a 30 year old 8 month pregnant woman. Last year may 2011 my cardiologist said that I had a rbbb and a lpfb. I may require a pacemaker for this and very terrified. Today I had 3 ekgs and it all said normal ekg. My doctor was shocked that the rbbb and lpfb was not seen. Could it be possible That I no longer have rbbb and lpfb?or is it malfunctioning because im 8 months pregnant?thank you so much. Martha

Hi Martha,
You either have a heart block or not. Your first step ought to be to find out whether that first EKG was correct or in error. If true, a Left bundle branch block during pregnancy may be a sign of imminent heart failure, "peripartum cardiomyopathy (heart malfunctioning)". It could be a serious problem and you should have it confirmed or denied by a cardiologist.
Hope this helps,

Dr T

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