title: Controlling cardiac arrhythmias: to delay conduction or to prolong refractoriness.
abstract: Recent data with encainide and flecainide (CAST study) question the benefit of reducing premature ventricular contractions in survivors of myocardial infarction. Proarrhythmic mechanisms might include excessive slowing of conduction. In patients with supraventricular tachycardias, proarrhythmic effects of Class 1c agents are very uncommon.
authors.affiliation: Veterans Administration Medical Center, West Los Angeles, California.
authors.forename: B N
authors.initials: BN
authors.lastname: Singh
mesh_terms: D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D006329:Heart Conduction System / Q000187:drug effects*; D006801:Humans; D013997:Time Factors
chemical_list: D000889:Anti-Arrhythmia Agents