title: Study of right bundle-branch block in association with either left anterior hemiblock or left posterior hemiblock using His bundle electrograms.
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000150:complications* / Q000503:physiopathology; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications* / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged