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Published on: May 26, 2022
Role and optimal dosing of angiotensin-converting enzyme inhibitors in heart failure
1Division of Cardiology, University of California, 200 W Arbor Drive, MPF 360, San Diego, CA 92103, USA.
Insights
Angiotensin-converting enzyme (ACE) inhibitors are crucial for treating heart failure with reduced ejection fraction, improving outcomes. Their benefit in heart failure with preserved ejection fraction remains unproven, necessitating careful patient selection.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Angiotensin-converting enzyme (ACE) inhibitors are widely used for symptomatic left ventricular systolic dysfunction.
- Evidence suggests potential benefits in preventing heart failure in high-risk individuals.
Purpose of the Study:
- To evaluate the role of ACE inhibitors in heart failure management.
- To clarify their efficacy in different heart failure subtypes.
Main Methods:
- Review of clinical trial data on ACE inhibitor use in heart failure.
- Analysis of outcomes related to morbidity and mortality.
Main Results:
- ACE inhibitors significantly reduce morbidity and mortality in symptomatic systolic dysfunction.
- Definitive benefits are not established for heart failure with preserved ejection fraction.
- Specific ACE inhibitors (captopril, enalapril, lisinopril, ramipril) have proven efficacy.
Conclusions:
- ACE inhibitors are a cornerstone therapy for heart failure with reduced ejection fraction.
- Target doses demonstrated in trials should be pursued if tolerated.
- Further research is needed for heart failure with preserved ejection fraction.
Abstract:
Based on overwhelming data demonstrating reduced morbidity and mortality, ACE inhibitors form a mainstay of therapy in all patients with symptomatic left ventricular systolic dysfunction. Furthermore, ACE inhibitors may be beneficial in the prevention of heart failure in patients with high-risk cardiovascular profiles. However, definite benefit from the use of ACE inhibitors in all patients with heart failure and preserved ejection fraction has not been demonstrated. Even though ACE inhibitors probably have a class effect in patients who have heart failure, it is recommended that ACE inhibitors that have been shown to reduce morbidity and mortality in clinical trials (captopril, enalapril, lisinopril, and ramipril) be used because studies have clearly defined a dose for these agents that is effective in modifying the natural history of the disease. Attempts should be made to up titrate patients to target doses of ACE inhibitors that have been used in clinical trials, if tolerated.
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