title: Complete heart block occurring during cardiac catheterization in patients with preexisting bundle branch block.
mesh_terms: D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications*; D006328:Cardiac Catheterization / Q000009:adverse effects*; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications / Q000209:etiology*; D006329:Heart Conduction System / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D010138:Pacemaker, Artificial