Most commonly, it refers to a combination of right bundle branch block ( RBBB ) and either left anterior fascicular block ( LAFB ) or left posterior fascicular block ( LPFB ), with the former being more common.
12.
Most commonly, it refers to a combination of right bundle branch block ( RBBB ) and either left anterior fascicular block ( LAFB ) or left posterior fascicular block ( LPFB ), with the former being more common.
13.
A subset of individuals with the triad of first-degree heart block, right bundle branch block, and either left anterior fascicular block or left posterior fascicular block ( known as trifascicular block ) may be at an increased risk of progression to complete heart block.
14.
A subset of individuals with the triad of first-degree heart block, right bundle branch block, and either left anterior fascicular block or left posterior fascicular block ( known as trifascicular block ) may be at an increased risk of progression to complete heart block.