Comparison between the effects of urapidil and methyldopa on left ventricular hypertrophy and haemodynamics in humans.
In a randomised double-blind study the effects on left ventricular mass (LV mass) and cardiac haemodynamics of urapidil, an antihypertensive agent with a vascular postsynaptic alpha 1-blocking action and a central antihypertensive effect, were compared with those of methyldopa in 29 patients with essential hypertension. During a 3-month period, urapidil was initially given at 120 mg/day and increased to 180 mg/day if a satisfactory antihypertensive response was not achieved. Methyldopa was started at 100 mg/day and increased to 1500 mg/day if an adequate blood pressure response was not achieved. Echocardiographic measurements were obtained at baseline and after 12 weeks' active treatment. The frequency rates of responders ( DBP less than 95 mm Hg) on urapidil and methyldopa were 54% and 62%, respectively, after 12 weeks. In the group as a whole there was a nonsignificant tendency for decreased LV mass on both active drugs. However, the haemodynamic changes were difficult to interpret because of baseline differences between the 2 treatment groups.[1]References
- Comparison between the effects of urapidil and methyldopa on left ventricular hypertrophy and haemodynamics in humans. Feldstein, C.A., Olivieri, A.O., Sabarís, R.P. Drugs (1988) [Pubmed]
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