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Comparative long term effects of nebivolol and carvedilol in hypertensive heart failure patients
Giuseppe Marazzi1, Maurizio Volterrani, Giuseppe Caminiti
1Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele, Rome, Italy. giuseppe.marazzi@sanraffaele.it
Insights
Nebivolol and carvedilol show similar long-term effectiveness in improving left ventricular ejection fraction and exercise capacity for hypertensive patients with chronic heart failure (CHF). Both medications equally benefit heart failure management.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Beta-blockers are crucial for managing chronic heart failure (CHF), improving left ventricular (LV) function and patient prognosis.
- Different beta-blockers possess distinct pleiotropic properties that can influence cardiovascular outcomes.
- This study investigates the comparative long-term effects of nebivolol and carvedilol in hypertensive CHF patients.
Purpose of the Study:
- To compare the efficacy of nebivolol versus carvedilol in improving left ventricular ejection fraction (LVEF) in hypertensive CHF patients over 24 months.
- To assess the impact of nebivolol and carvedilol on exercise capacity and clinical outcomes in this patient population.
- To evaluate the long-term effects of these beta-blockers on heart rate and New York Heart Association (NYHA) functional class.
Main Methods:
- An open-label, randomized study involving 160 hypertensive CHF patients with LVEF <40% (NYHA class I-III).
- Patients received either nebivolol (10 mg/d) or carvedilol (50 mg/d) for 24 months.
- Evaluations included clinical assessment, echocardiography, and the 6-minute walking test at baseline and end of treatment.
Main Results:
- Both nebivolol and carvedilol significantly increased LVEF compared to baseline (p < .001 for both).
- Significant improvements were observed in heart rate, NYHA functional class, and 6-minute walking distance in both treatment groups (p < .001).
- Cardiac events occurred in 26% of carvedilol recipients and 22% of nebivolol recipients over 24 months.
Conclusions:
- Nebivolol and carvedilol demonstrate comparable long-term efficacy in treating hypertensive patients with CHF.
- Both agents effectively improve LV systolic function, exercise capacity, and clinical status.
- The findings suggest similar therapeutic benefits between nebivolol and carvedilol in this patient cohort.
Background:
Beta-blockers improve left ventricular (LV) systolic function and prognosis in patients with chronic heart failure (CHF), but their different pleiotropic properties may influence their cardiovascular effects. This open-label study compared the effects of long-term treatment with nebivolol versus carvedilol on LV ejection fraction (LVEF), in hypertensive CHF patients. Secondary end points were to assess the effect of the 2 beta-blockers on exercise capacity and clinical outcome.
Methods And Results:
A total of 160 hypertensive CHF patients, with LVEF <40% and in New York Heart Association (NYHA) functional class I, II, or III, were randomly assigned to receive nebivolol or carvedilol for 24 months. At baseline and at the end of treatment, all patients underwent clinical evaluation, echocardiography, and 6-minute walking test. The target doses were 10 mg/d for nebivolol and 50 mg/d for carvedilol. Compared with baseline values, LVEF increased by a similar extent in the carvedilol (C) and nebivolol (N) groups (C from 36.1% (SD 1.5%) to 40.9% (SD 1.9%), P < .001; N from 34.1% (SD 1.8%) to 38.5% (SF 2.2%), P < .001). Heart rate and NYHA functional class decreased significantly in both groups, and the 6-minute walking distance increased (C from 420 m (SD 104 m) to 490 m (SD 115 m), P < .001; N from 421 m (SD 118 m) to 487 m (SD 138 m), P < .001). During 24 months, 21 carvedilol recipients (26%) and 18 nebivolol recipients (22%) had cardiac events, including 3 and 4 deaths, respectively.
Conclusion:
In the long term, nebivolol and carvedilol appear to be similarly effective in the treatment of hypertensive patients with CHF.
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