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Official Journal of the , the International Union of Phlebology and the
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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Andreadis E. A., Angelopoulos E. T., Kolyvas G. N., Agaliotis G. D., Mousoulis C. G., Mousoulis G. P.
Third Department of Internal Medicine, Evangelismos General Hospital, Athens, Greece
Aim: Aim of the present study was to compare the effectiveness of two renin-angiotensin-aldosterone system inhibitors in arterial stiffness reduction in previously untreated hypertensive patients.
Methods: In this open label study, 154 naïve, or not treated in the last six months hypertensive patients were randomly assigned to receive aliskiren 300 mg or ramipril 5 mg daily. Six weeks after the initiation of treatment, patients were evaluated for blood pressure (BP) control. Patients with SBP ≥140 and/or DBP ≥90 mmHg were assigned to an adjunct of 25 mg hydrochlorothiazide as combination treatment. A re-evaluation of BP control was done after another 6 weeks. Individuals with BP ≥140/90 mmHg were further administered amlodipine 5 mg. The final evaluation was performed six months after the start of the study. Twenty four-hour ambulatory blood pressure monitoring was carried out and the ambulatory arterial stiffness index (AASI) was calculated at baseline and after 6 months of treatment.
Results: Aliskiren-based therapy, as compared with ramipril-based therapy reduced BP to a similar degree: 13±11 vs. 12±11 mmHg reduction in systolic (P=0.34) and 8±7 vs. 7±7 mmHg reduction in diastolic BP (P=0.44). AASI was reduced by 0.04±0.1 in the aliskiren group and by 0.02±0.2 in the ramipril group. AASI reduction did not differ significantly in the two groups (P=0.13).
Conclusion: In hypertensive patients, aliskiren-based treatment as well as ramipril-based treatment appears to have a beneficial effect on arterial stiffness. As arterial stiffness is an important modifiable risk factor, our findings highlight the value of aliskiren beyond BP lowering properties.