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Published on: May 19, 2021
Nebivolol and incident cardiovascular events in hypertensive patients compared with nonvasodilatory beta blockers
Daniel M Huck1, Michael A Rosenberg1, Brian L Stauffer1,2
1Division of Cardiology, Department of Medicine, University of Colorado, Aurora.
Insights
Nebivolol, a vasodilatory beta blocker, significantly reduced cardiovascular events in hypertensive patients compared to nonvasodilatory beta blockers like metoprolol. Further research is needed to confirm if this benefit is specific to nebivolol or a class effect.
Area of Science:
- Cardiology
- Pharmacology
- Hypertension Management
Background:
- Nonvasodilatory beta blockers show less cardiovascular event reduction than other antihypertensives.
- Guidelines express uncertainty regarding the first-line use of beta blockers for hypertension.
- Nebivolol, a third-generation vasodilatory beta blocker, possesses unique vascular benefits.
Purpose of the Study:
- To compare cardiovascular outcomes in hypertensive patients treated with nebivolol versus nonvasodilatory beta blockers (metoprolol, atenolol).
Main Methods:
- Retrospective cohort analysis of hypertensive adults within the University of Colorado health system.
- Primary outcome: composite of heart failure, stroke, myocardial infarction, angina, or coronary revascularization.
- Mahalanobis distance matching and Cox proportional hazards regression were employed for analysis.
Main Results:
- Nebivolol use was associated with a 17% reduction in incident cardiovascular events compared to all nonvasodilatory beta blockers (HR 0.83, P=.004).
- A 24% reduction in cardiovascular events was observed when comparing nebivolol to metoprolol (HR 0.76, P=.0001).
- The matched cohort predominantly comprised women (54%) and non-Hispanic Caucasians (79%) with a median age of 58.
Conclusions:
- The vasodilatory beta blocker nebivolol demonstrated reduced incident cardiovascular events compared to nonvasodilatory beta blockers.
- Further investigation is required to ascertain if the observed benefits are a class effect of vasodilatory beta blockers or specific to nebivolol.
Objective:
Nonvasodilatory beta blockers are associated with inferior cardiovascular event reduction compared with other antihypertensive classes, and there is uncertainty about first-line use of beta blockers for hypertension in guidelines. The third generation vasodilatory beta blocker nebivolol has unique beneficial effects on central and peripheral vasculature. Our objective was to compare longitudinal cardiovascular outcomes of hypertensive patients taking nebivolol with those taking the nonvasodilatory beta blockers metoprolol and atenolol.
Methods:
We performed a retrospective cohort analysis of hypertensive adults in the University of Colorado health system, without preceding diagnosis of cardiovascular or cerebrovascular disease. The primary outcome was composite incident heart failure, stroke, myocardial infarction, angina, or coronary revascularization. Mahalanobis 1:2 distance matching and Cox proportional hazards regression was used. Matching and regression variables included baseline demographics, socioeconomic factors, medical insurance type, prescribing provider type, cardiovascular risk factors, Charlson comorbidity index, other medications, and follow-up duration.
Results:
After matching, patients were predominantly women (54%, 3085 of 5705) and non-Hispanic Caucasian (79%, 4534 of 5705), with median age of 58. In matched Cox regression analysis, nebivolol was associated with 17% reduction in incident cardiovascular events compared with all nonvasodilatory beta blockers [hazard ratio 0.83, 95% confidence interval (CI) 0.74-0.94, P = 0.004], and 24% reduction compared with metoprolol (hazard ratio 0.76, CI 0.66-0.87, P = 0.0001).
Conclusion:
The vasodilatory beta blocker nebivolol was associated with reduced incident cardiovascular events compared with nonvasodilatory beta blockers. Additional study of other beta blockers is necessary to determine if this is a vasodilatory beta blocker class effect or is specific to nebivolol.
Abstract:
http://links.lww.com/HJH/B916.
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