title: Randomised trial comparing propranolol with atenolol in immediate treatment of suspected myocardial infarction.
abstract: The value of beta-blockade for suspected acute myocardial infarction was assessed by determining the six-week and one-year mortality rates in patients started on propranolol, atenolol, or placebo immediately on entry to a coronary care unit. A total of 388 patients entered this double-blind, randomised study, and when analysed on the basis of the initial, intention-to-treat categories there was no significant difference between the three groups in respect of the mortality rate at one year. There was, however, a high withdrawal rate from the trial; the reasons for this illustrate problems of physician compliance and interpretation of data, which are common to all early-entry trials of haemodynamically active agents in acute myocardial infarction.
mesh_terms: D000328:Adult; D000368:Aged; D001262:Atenolol / Q000494:pharmacology / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003864:Depression, Chemical; D004311:Double-Blind Method; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000188:drug therapy* / Q000401:mortality; D011379:Prognosis; D011412:Propanolamines / Q000627:therapeutic use*; D011433:Propranolol / Q000494:pharmacology / Q000627:therapeutic use*; D011897:Random Allocation
chemical_list: D011412:Propanolamines; D001262:Atenolol; D011433:Propranolol