title: Sustained "slow-fast" and "fast-slow" AV nodal re-entrant tachycardia in a patient with recurrent supraventricular tachycardia.
abstract: A case is presented of a 21-year-old woman with recurrent paroxysmal supraventricular tachycardia. Electrophysiologic study demonstrated the presence of both antegrade and retrograde dual AV nodal conduction pathways and both conventional slow-fast and atypical fast-slow forms of the AV nodal re-entrant tachycardia could be induced. Both tachycardias were successfully suppressed with a combination of digoxin and verapamil.
mesh_terms: D000328:Adult; D001283:Atrioventricular Node / Q000503:physiopathology*; D002036:Bundle of His / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial; D004077:Digoxin / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D013614:Tachycardia, Paroxysmal / Q000188:drug therapy / Q000503:physiopathology*; D014700:Verapamil / Q000627:therapeutic use
chemical_list: D004077:Digoxin; D014700:Verapamil