title: The electrocardiogram during myocardial infarction.
abstract: The electrocardiogram during myocardial ischemia, injury, and infarction produces classic changes in the QRS complex, ST segment, and T wave. These changes are easily recognized and, with results of serum isoenzymes, physical assessment, and the patient's history, aid in diagnosis. This article reviews the changes that occur on the electrocardiogram beginning with a brief review of normal depolarization and repolarization and ending with changes seen in various types of myocardial infarctions.
authors.forename: L K
authors.initials: LK
authors.lastname: Menzel
mesh_terms: D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D009336:Necrosis