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  • Title: Beta-blocking drugs for arrhythmias, hypertension, and ischemic heart disease.
    Author: Johns VJ.
    Journal: Am J Surg; 1984 Jun; 147(6):725-30. PubMed ID: 6145367.
    Abstract:
    Beta-blocking drugs have provided significant improvement in the medical therapy of many types of heart disease. They are more effective in treating young hypertensive patients than elderly hypertensive patients. These drugs reduce the ventricular rate seen in atrial flutter and fibrillation, and they also reduce the frequency of ventricular ectopy. Beta blockers are important adjuncts for control of angina pectoris. When these drugs are given for a period of 1 to 3 years after myocardial infarction they reduce the incidence of reinfarction and the frequency of sudden death as well as reduce the overall mortality rate. Factors that may contribute to the overall decreased mortality include the reduction in the reinfarction rate and an increased threshold for ventricular fibrillation as well as those mechanisms that reduce myocardial oxygen utilization.
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