title: Infra-His bundle origin of bidirectional tachycardia.
mesh_terms: D001281:Atrial Fibrillation / Q000150:complications; D006328:Cardiac Catheterization; D004074:Digitoxin / Q000009:adverse effects*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000150:complications*; D013610:Tachycardia / Q000209:etiology* / Q000503:physiopathology
chemical_list: D004074:Digitoxin