A UNIQUE CASE OF POSTURAL ATRIOVENTRICULAR BLOCK IN THE SUPINE POSITION

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