Functional Transverse Interconnections within the His Bundle and the Bundle Branches

HIS BUNDLE AND BUNDLE BRANCHES/Massing, James References

1. Clark J, Plonsey R: A mathematical evaluation of the core conductor model. Biophys J 6: 95, 1966 2. Weidmann S: The diffusion of radiopotassium across the intercalated disks of mammalian cardiac muscle. J Physiol 187: 323, 1966 3. Sperelakis N, Hoshiko T, Berne RM: Nonsyncytial nature of cardiac muscle: membrane resistance of single cells. Am J Physiol 198: 531, 1960 4. Plonsey R: Bioelectri...

Anatomical configuration of the His bundle and bundle branches in the human heart.

The relationships among the His bundle, the origin of both bundle branches, and the interventricular (IV) septum were examined histologically in 32 human hearts, and the entire bundle branch systems were delineated in 13 of these. The His bundle in five hearts traversed the right IV septal crest, and the LBB origin was a very narrow stem (maximum 1.5 mm in cross-section) crossing from right to ...

Conduction disturbances located within the His bundle.

SUMMARY Four patients are described with different degrees of conduction disturbance within the His bundle. In one patient with a Mobitz type II atrioventricular (A-V) block with normal QRS complexes the blocked atrial beats were followed by a His potential. Since the QRS complexes of the conducted beats were completely normal, the site of the block was thought to be in the distal part of the H...

Fascicular block within the His bundle.

The findings in a patient with complete atrioventricular block and normal morphology and duration of the QRS complex are presented. A His bundle electrogram was obtained, which led to the location of the atrioventricular block within the His bundle. A careful review of the electrocardiograms obtained during the seven years preceding the onset of complete atrioventricular block showed a QRS comp...

Longitudinal dissociation in the His bundle. Bundle branch block due to asynchronous conduction within the His bundle in man.