title: Ask the doctor. I had an electrocardiogram in preparation for minor surgery. My doctor told me it showed that I have right bundle branch block. Neither he nor my cardiologist are worried about it, but I am. Is this serious?
authors: Thomas
authors: T
authors: Lee
mesh_terms: D002037:Bundle-Branch Block / Q000503:physiopathology* / Q000601:surgery; D006801:Humans