title: Effect of atenolol on recovery of the electrocardiographic signs of myocardial infarction.
abstract: The most notable changes in the 35-lead precordial electrocardiogram in 22 subjects in the first 6--12 months after acute myocardial infarction were a reduction in the amplitude of Q waves and a significant increase in the amplitude of the R waves. Patients who, in a random trial, had been given 100 mg atenolol daily from admission showed a significantly greater recovery in R-wave amplitude and decrease in Q waves than patients given placebo. It is concluded that atenolol improves the recovery of the electrocardiographic signs of myocardial infarction.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001262:Atenolol / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004562:Electrocardiography; D005500:Follow-Up Studies; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology / Q000534:rehabilitation*; D010919:Placebos; D011412:Propanolamines / Q000627:therapeutic use*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D010919:Placebos; D011412:Propanolamines; D001262:Atenolol