title: Electrophysiologic properties of intravenous oxprenolol in man.
abstract: Electrophysiologic modifications produced by intravenous administration of 0.1 mg/Kg Oxprenolol were studied in 16 subjects with estimated normal impulse formation and conduction. Significant effects were sinus bradycardia, mild increase of sino-atrial conduction time, depression of intranodal conduction and prolongation of A-V node refractory periods. Sinus node recovery time and atrial refractory periods were unchanged. Infranodal conduction and the refractory periods of the His-Purkinje system, as well as of the bundle branches, were unchanged. These effects are compared with those observed after intravenous Propranolol and Prindolol.
mesh_terms: D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000188:drug therapy; D001283:Atrioventricular Node / Q000187:drug effects; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010096:Oxprenolol / Q000494:pharmacology* / Q000627:therapeutic use; D012849:Sinoatrial Node / Q000187:drug effects
chemical_list: D010096:Oxprenolol