Retrograde ventriculo-atrial conduction in complete heart block.
D000368:Aged; D001283:Atrioventricular Node / Q000503:physiopathology*; D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male