Interv Akut Kardiol. 2009;8(6):322-324
Beta blockers boast a number of advantageous effects. Substantial is a deceleration of heart rate, leading to the decrease in metabolic
demands of the myocardium, improvement of left ventricle filling, as well as improvement in the subendocardial blood flow. They
also decrease arterial blood pressure, have antiarrhythmic effects and in long term use in chronic heart failure lead to an increase in
left ventricle ejection fraction. Beta blockers can also improve myocardial function in acute heart failure. It is nowadays a standard
practice to continue chronic beta blocker medication in acute exacerbation of chronic heart failure when possible. In newly manifested
more severe heart failure or in those not yet started on beta blocker therapy, its initiation can lead to major improvement especially
in those with significant tachycardia. Short-acting or very short-acting drugs are recommended for the initiation, as well as the whole
duration of treatment in acute heart failure, allowing for safe trial of efficacy and tolerance. It is important to use only high selective
beta-1-blockers. The positive effect of beta blockers initiated after the acute phase of heart failure has been documented in large trials,
however, there is increasing evidence from case studies and experimental work that initiation of beta blockers during the acute phase
of heart failure has benefits, too.
Published: December 12, 2009 Show citation