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Clinical experience with dextro-alprenolol
British Medical Journal
|March 28, 1970
Insights
Dextro-alprenolol showed limited effectiveness for treating arrhythmias after acute myocardial infarction. The drug caused significant hypotension, outweighing any minor benefits for ventricular ectopic beats.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Arrhythmias are common complications of acute myocardial infarction.
- Beta-blockers are frequently used in managing cardiac arrhythmias.
Purpose of the Study:
- To evaluate the efficacy and safety of dextro-alprenolol in patients with arrhythmias post-myocardial infarction.
Main Methods:
- Clinical observation of nine patients treated with dextro-alprenolol.
- Assessment of antiarrhythmic effects and adverse events.
Main Results:
- Dextro-alprenolol was largely ineffective for supraventricular arrhythmias.
- Marginal control of ventricular ectopic beats was observed.
- A significant hypotensive effect and risk of infarction were noted.
Conclusions:
- Dextro-alprenolol is not recommended for treating arrhythmias associated with acute myocardial infarction due to ineffectiveness and adverse effects.
- The hypotensive risk outweighs potential benefits in managing post-infarction arrhythmias.
Abstract:
Experience with dextro-alprenolol in nine patients has shown that it is relatively ineffective in treating arrhythmias associated with acute myocardial infarction. Marginal effectiveness in the control of ventricular ectopic beats after myocardial infarction is outweighed by an appreciable hypotensive effect with risk of infarction. The drug was ineffective in the management of supraventricular arrhythmias.