[Classification of the site of the conduction disturbance in right bundle branch block using body surface mapping]

We can estimate the conduction disturbance in right bundle branch block (RBBB) using body surface mapping. Characteristics of body surface mapping in the cases with RBBB are classified into three types using the appearance time and the site of the breakthrough. In the first type, breakthrough appeared in the center of the anterior chest within the normal time. It shows the peripheral block of right bundle branch. In the second type, breakthrough appeared in the center of the anterior chest later than the normal time. It shows the conduction delay of the main trunk of right bundle branch. In the third type, breakthrough appeared at the left of the anterior chest later than the normal time. It suggests the complete block of the main trunk of right bundle branch.