What Causes Right Bundle Branch Block?

Posted on Fri, 11 Jul 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Fri, 11 Jul 2014 Answered on

Fri, 1 Aug 2014 Last reviewed on

Question : Ecg showed sinus rhythm, incomplete right bundle block and left axis deviation, could this be a result of an electrocution at work ?

Answered by Dr. Venkat Sivayogi (5 hours later)

Brief Answer:
Not a concern....

Detailed Answer:
Hello,
Welcome to Healthcare Magic,

RBBB is no way associated with electrocution. It is even seen in normal people with out any underlying heart problem.

I do see lot of cases in my clinic with even complete RBBB, only thing I do is reassure them. So the conclusion is RBBB is seen in normal individuals also.

There are some pathological causes :-
1. Ishaemic heart disease
2.Right ventricular hypertrophy
3.COPD with right heart failure
4.Rhematic heart disease.

But remember Left Bundle branch block is a serious concern and it always denotes underlying heart problem.

regards,
DR.VENKAT M.D

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar