Key result
Intravenous propranolol consistently slowed sinus tachycardias and reduced ventricular rates in atrial flutter and fibrillation among 50 patients with cardiac rhythm disturbances.
Why the study?
Does intravenous propranolol improve cardiac rhythm disturbances in patients with arrhythmias?
Population
50 consecutive patients with a variety of cardiac rhythm disturbances
Design
Case_series
Authors
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May support cautious IV propranolol use for rate control; leaves open confirmation in controlled trials.
Does intravenous propranolol improve cardiac rhythm disturbances in patients with arrhythmias?
Intravenous propranolol is effective for slowing ventricular rates in supraventricular tachycardias and treating digitalis-induced arrhythmias, but requires careful monitoring and patient selection.
Irons et al. (1968) studied Cardiac rhythm disturbances (n=50). Propranolol was evaluated. Intravenous propranolol consistently slowed sinus tachycardias and reduced ventricular rates in atrial flutter and fibrillation among 50 patients with cardiac rhythm disturbances.
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