Open AccessCardiodynamic Effects of Experimental Bundle-Branch Block in the Dog
Author(s) -
James R. Wennemark,
D. F. Blake,
Paul Kezdi
Publication year - 1962
Publication title -
circulation research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.899
H-Index - 336
eISSN - 1524-4571
pISSN - 0009-7330
DOI - 10.1161/01.res.10.3.280
Subject(s) - ventricle , isometric exercise , contraction (grammar) , cardiology , medicine , bundle , left bundle branch block , bundle branch block , right bundle branch block , anatomy , electrocardiography , materials science , heart failure , composite material
Electrical-mechanical relationships of the canine heart were studied using simultaneous right and left intraveutricular pressures. In the control tracings, there was usually some asynchrony in the onset of ventricular isometric contraction with the right ventricle following the left ventricle. Right bundle-branch block and left bundle-branch block produced a delay in the onset of isometric contraction of the homolateral ventricle. A change in contour of the right intraventricular curve was frequently seen with right, bundle-branch block.
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