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Comparison between nebivolol and ramipril in patients with hypertension and left ventricular hypertrophy: a randomized open blinded end-point (PROBE) trial.
To compare the effects of nebivolol and ramipril on left ventricular hypertrophy in hypertensive patients.
MATERIALS AND METHODS
The study was conducted with a pre-randomised blinded endpoint (PROBE) design in which 106 patients with mild-to-moderate hypertension and left ventricular hypertrophy were randomised to ramipril (n = 52) or to nebivolol (n = 54) and treated for 39 weeks. The doses of ramipril and nebivolol were 2.5 and 5 mg/day, respectively. After 4-8 weeks, in patients with not normalised diastolic blood pressure, a thiazide diuretic was added (indapamide 2.5 mg or hydrochlorothiazide 12.5 mg/day). In the ramipril group, thiazide diuretic was added in 97% of subjects and in nebivolol group in 92%. The effect of treatment on left ventricular mass was assessed by two-dimensional guided M-mode transthoracic echocardiography, at baseline and at the end of the treatment. Left ventricular mass index (LVMI) was calculated and indexed to body surface area (g/m2) and height2.7 (g/height2.7). Blood pressure (BP) was measured at baseline, after 4, 8, 12, 24 and 39 weeks with a standard mercury sphygmomanometer.
Both left ventricular mass (LVM) and mass index (LVMI) decreased significantly after treatment with ramipril (LVMI -14.8 g/m2, -7.3 g/height2.7; p < 0.001), and after treatment with nebivolol (LVMI -31.9 g/m2, -15.6 g/height2.7; p < 0.001). The difference between ramipril and nebivolol (-17.1 g/m2, -8.3 g/height2.7) with regards to reduction of LVMI was statistically significant (p < 0.001). No differences were observed between the two groups in terms of normalization of LVMI. Both drugs decreased BP similarly after 39 weeks of treatment
The present study shows that both nebivolol and ramipril decrease LVMI. Nebivolol 5 mg/daily treatment reduced LVMI significantly more than ramipril 2.5 mg/daily. Both drugs similarly decreased BP during the treatment.
Drug Therapy, Combination
Hypertrophy, Left Ventricular
Sodium Chloride Symporter Inhibitors
Pub Type(s)Comparative Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't