title: First degree A-V block due to a triple block in the A-V conduction system.
mesh_terms: D000328:Adult; D002037:Bundle-Branch Block / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans