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Beta-blocker therapy in young children with congestive heart failure under consideration for heart transplantation
1Department of Pediatrics, Primary Children's Medical Center and the University of Utah School of Medicine, Salt Lake City, USA.
Insights
Metoprolol improved heart function in young children with cardiomyopathy. This beta-blocker therapy shows promise for treating pediatric congestive heart failure when other options are limited.
Area of Science:
- Pediatric Cardiology
- Pharmacology
- Cardiovascular Medicine
Background:
- Beta-blocker therapy is established for adult cardiomyopathy.
- Limited data exists on pediatric beta-blocker efficacy for cardiomyopathy.
Purpose of the Study:
- To evaluate metoprolol's effectiveness in young children with severe cardiomyopathy.
- To assess potential benefits for children with congestive heart failure.
Main Methods:
- Retrospective review of four pediatric patients with cardiomyopathy.
- Patients were referred for heart transplantation due to severe congestive heart failure.
- Treatment involved metoprolol administration.
Main Results:
- Significant improvement in left ventricular fractional shortening (13.8% to 25.5%).
- Significant improvement in ejection fraction (19.8% to 40.8%).
- Two children experienced symptom resolution, becoming asymptomatic.
Conclusions:
- Metoprolol demonstrates potential efficacy in pediatric cardiomyopathy.
- It may improve ejection fraction and alleviate symptoms in children with congestive heart failure.
- Further research is warranted for this patient population.
Background:
Although beta-blocker therapy for dilated or ischemic cardiomyopathy is now an accepted and effective treatment in adults, little is known about its efficacy in children.
Methods:
We reviewed our experience with the use of metoprolol in four younger children with cardiomyopathy who were referred for consideration for heart transplantation because of severe congestive heart failure.
Results:
Over a follow-up period of 12.6 +/- 6 months, left ventricular fractional shortening increased from 13.8% +/- 7% to 25.5% +/- 13%, and ejection fraction increased from 19.8% +/- 11% to 40.8% +/- 21% (p < 0.05). Two children became asymptomatic.
Conclusion:
Metoprolol may be effective in improving ejection fraction and symptoms in some young children with cardiomyopathy and congestive heart failure.