RESUMO
In hypertensive patients, the development of left ventricular hypertrophy seems to increase the risk of cardiovascular death although some antihypertensive agents have been associated with regression in left ventricular hypertrophy. A few studies have evaluated the carvedilol, a new drug having a balanced pharmacology of vasodilatation and beta-receptor blockade, particularly in elderly hypertensive patients. To test its effects on left ventricular hypertrophy, patients with essential hypertension and left ventricular hypertrophy were studied before and at the end of 6 months of therapy with 25 mg of carvedilol daily. Candidates had to have moderate, uncontrolled essential hypertension with echocardiographically documented left ventricular hypertrophy (left ventricular mass index > 130 g/m2 for men and > 110 g/m2 for women). Of 26 patients selected, 4 dropped out. The remaining 22 patients successfully completed 6 months of therapy. The average age was 69 +/- 8 years. Carvedilol caused a significant reduction of mean systolic blood pressure from 175 to 145 mmHg (p < 0.001), of diastolic blood pressure from 102 to 82 mmHg (p < 0.001), of left ventricular mass index from 148 +/- 24 g/m2 (p < 0.003), and a non significant change of the mean heart rate from 78 to 72 beats/min. In our study, carvedilol was well tolerated in patients with essential hypertension and left ventricular hypertrophy.
