Termination of a tachyarrhythmia by paired pacing.
D000368:Aged; D006328:Cardiac Catheterization; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000628:therapy*; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D010138:Pacemaker, Artificial; D011433:Propranolol / Q000627:therapeutic use; D013610:Tachycardia / Q000188:drug therapy / Q000628:therapy*; D013997:Time Factors
D011433:Propranolol