title: Protective effect of propranolol in threatened myocardial infarction.
abstract: Propranolol 0.1 mg/kg intravenously followed by 320 mg orally over 27 h was given to 20 randomly selected patients within 4 h of the onset of suspected myocardial infarction unaccompanied by diagnostic electrocardiographic changes. Patients given propranolol had fewer completed infarcts as assessed by serial electrocardiograms, a lower frequency of serum-creatine-kinase levels above the normal range, and lower peak serum-creatine-kinase levels than 23 control subjects. This evidence suggests that threatened myocardial infarction can in some cases be prevented by early beta-adrenoceptor blockade.
mesh_terms: D000208:Acute Disease; D000284:Administration, Oral; D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003402:Creatine Kinase / Q000037:antagonists & inhibitors / Q000097:blood; D005260:Female; D006207:Half-Life; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control*; D011433:Propranolol / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D011433:Propranolol; D003402:Creatine Kinase