Hans…if I may…the RBBB is an abnormal electrical circuit in your heart. I’m sure you have researched it since diagnosis. But I will be happy to answer any questions you may have on the subject. I have worked in the cardiac cath lab for over 20 years and lots of my patients have the the same types of issues you have described.
Your RBBB won’t have anything to do with the blood pressure in your right arm being higher than your left. The fact that your pressure is lower in your left arm could be a sign of a blockage in the artery to your left arm. Sometimes the blockage could be from plaque (atherosclerosis) or even from the clavicle and the ribs being too close together on that side (Thoracic Outlet Syndrome). Do you have symptoms in your left arm? Do you experience numbness or pain when you use it, or when you hold it over your head? Is the pulse in your left wrist different from the right? Do you ever have dizziness when you turn your head a certain way?
If you have none of these symptoms then it’s usually not a problem that requires attention. But if you do, mention it to your doctor.
Otherwise, whenever you are having your blood pressure taken, always use your right arm. That one will be more accurate.
Hope you don’t mind the unsolicited advice:)REPORT ABUSE