Abstract
Even after successful repair, hypertension is one of the main determinants of cardiovascular morbidity and mortality in patients with aortic coarctation (CoA). We compared the effect of candesartan (angiotensin II receptor blockade) and metoprolol (beta-adrenergic receptor blockade) on blood pressure, large artery stiffness, and neurohormonal status in hypertensive patients after repair of CoA. In the present open-label, crossover study, hypertensive patients after CoA repair were first randomly assigned to treatment with candesartan 8 mg or metoprolol 100 mg once per day. After 8 weeks of treatment with one of the drugs, the other treatment was given for 8 weeks. The treatment effects were assessed with 24-hour ambulatory blood pressure monitoring, measurement of large artery stiffness, and neurohormonal plasma levels at baseline and after 8 weeks of either treatment. Sixteen patients (mean age 37 +/- 12 years, 26 +/- 15 years after repair, 63% men) completed the study. The 24-hour mean arterial pressure at baseline was 97.7 +/- 6.2 mm Hg. Metoprolol (mean dose 163 +/- 50 mg/day) decreased the mean arterial pressure (7.0 +/- 4.2 and 4.1 +/- 3.6 mm Hg, respectively) more than did candesartan (mean dose 13 +/- 4 mg/day; p = 0.01...Continue Reading
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