Nebivolol vs Metoprolol

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2 Nov, 11

ENESYS Study: Nebivolol superior to Metoprolol in Improving Left Ventricular Dysfunction in Hypertensives with LVH

Aim

To compare the effects of nebivolol- with metoprolol-based treatment in patients with mild-to-moderate hypertension and left ventricular hypertrophy (LVH).

Study Patients

Fifty patients with mild-to-moderate hypertension (daytime ambulatory blood pressure >140 &/or >90 mmHg) and LVH (left ventricular mass index >125 g/m2 for men and >110 g/m2 for women) and no coronary heart disease (CHD)

Study Groups

  • Nebivolol 5 mg + Hydrochlorothiazide 25 mg (n=25)
  • Metoprolol 100 mg + Hydrochlorothiazide 25 mg (n=25)

If necessary, quinapril (ACE-I) 10-40 mg/day was added

Assessment

Doppler echocardiography, at rest and during dobutamine stress test

Study Duration

6 months

Results

Nebivolol and Metoprolol reduced BP and Heart Rate to a similar extent
Improvement in LV function was significantly greater with Nebivolol vs. Metoprolol
Parameters Nebivolol Metoprolol
Increase in mean Longitudinal ETDE (%) 16% * 9%
Increase in FPV (%) 34% * 0
Increase in ejection time (%) 5% * 0
Increase in mean longitudinal displacement (%) 10% * 0

* P < 0.05 ETDE- Longitudinal early diastolic velocity; FPV - Flow propagation velocity

Nebivolol was better tolerated than Metoprolol
Adverse Events Nebivolol Metoprolol
Total 9* 18
Fatigue 4 9
Newly developed diabetes 0 3
Erectile dysfunction 0 1

 

* P <0.05

Conclusion

Longitudinal left ventricular function is significantly improved with Nebivolol as compared to Metoprolol.

J Hypertens 2011; 29:809-817