title: An appraisal of second degree and paroxysmal atrioventricular block.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001283:Atrioventricular Node / Q000503:physiopathology; D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology; D004285:Dogs; D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000503:physiopathology; D009431:Neural Conduction; D011379:Prognosis; D011690:Purkinje Fibers / Q000503:physiopathology; D012032:Refractory Period, Electrophysiological; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology