His Bundle Electrogram in Bundle-Branch Block
His Bundle Electrogram in Bundle-Branch Block is a scholarly work, published in 1972 in ''Circulation''. The main subjects of the publication include electrocardiography, cardiology, heart arrhythmia, medicine, catheter ablation, electrical conduction system of the heart, internal medicine, atrioventricular bundle, Cardiology and cardiovascular medicine, bundle branch block, bundle branch, left bundle branch hemiblock, cardiac resynchronization therapy, anatomy, and bundle. (4) In alternating BBB the His recording clearly demonstrated that the changing P-R interval was related to varying conduction through the bundle branches.