The primary cause of toxicity is eating, drinking, and breathing toxins and chemicals on a regular basis, whether you are aware of it or not. We live in a toxic world; chemicals and toxins are everywhere.
Causes of RBBB. 1  Right ventricular hypertrophy / cor pulmonale. 2  Pulmonary embolus. 3  Ischaemic heart disease.  Rheumatic heart 1  disease. Myocarditis or cardiomyopathy.  Degenerative disease of the conduction 1  system. Congenital heart disease (e.g. atrial septal defect)
Brian C Downey, MD, FACC. Right bundle branch block (RBBB), a pattern seen on the surface electrocardiogram (ECG), results when normal electrical activity in the His-Purkinje system is interrupted (figure 1).