While Mobitz Type II Atrioventricular block (AVB) is always associated with conduction abnormalities below the AV node, Type I AVB can be due to nodal or infranodal pathology. 2° AVB… Click to show full abstract
While Mobitz Type II Atrioventricular block (AVB) is always associated with conduction abnormalities below the AV node, Type I AVB can be due to nodal or infranodal pathology. 2° AVB with 2:1 conduction cannot be described as Mobitz I or II; however, QRS morphology can localize the conduction
               
Click one of the above tabs to view related content.