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Will LBBB progress to complete heart block?

April 2011 routine physical ECG was normal.  April 2012 routine physical ECG showed PRWP and inverted T waves - Transesophageal echocardiogram done all OK.  July 2012 checked ECG again, now LBBB - another echo (all OK) and Nuclear stress test perfusion, etc., all OK.  No symptoms, 41 year old woman. PMH: IBS brother died of heart attack aged 36. Will LBBB progress and get worse? Develop total block? Do I need a pacemaker?  

submitted Paula from San Ramon on 8/7/2012


by Texas Heart Institute cardiologist, Jorge F. Guttin, MD    

Jorge F. Guttin, MDLBBB [left bundle branch block] does not necessarily progress to complete heart block. Everything else being normal, you should lead a normal lifestyle, and continue medical follow and coronary risk control.

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Updated August 2012
Texas Heart Institute Heart Information Center
Through this community outreach program, staff members of the Texas Heart Institute (THI) provide educational information related to the prevention, diagnosis, and treatment of cardiovascular disease. It is not the intention of THI to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided and THI urges you to visit a qualified physician for diagnosis and for answers to your questions.
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