Treatment with irbesartan or atenolol improves endothelial function in essential hypertension
In: Journal of Hypertension, Jg. 19 (2001), Heft 10, S. 1813-1818
Online
unknown
Zugriff:
OBJECTIVES: To investigate if antihypertensive treatment could improve endothelium-dependent vasodilatation in hypertensive patients, and whether the angiotensin II subtype-1 (AT1)-receptor antagonist irbesartan and the beta1-receptor antagonist atenolol would differ in this respect. SUBJECTS AND METHODS: Thirty-four patients (28 men and six women) with mild-to-moderate essential hypertension (diastolic blood pressure 90-120 mmHg) were randomized to once daily 150-300 mg irbesartan or 50-100 mg atenolol in a double-blind fashion, preceded by a placebo run-in period. Forearm blood flow (FBF) was assessed by venous occlusion plethysmography during local intra-arterial infusions of methacholine and sodium nitroprusside, to evaluate endothelium-dependent and endothelium-independent vasodilatation, respectively. Measurements of FBF were undertaken at the end of the run-in placebo period and repeated after 3 months of active antihypertensive treatment. RESULTS: Irbesartan and atenolol induced a similar decline in blood pressure (from 171/107 to 158/98 mmHg, P < 0.05), and improved endothelium-dependent vasodilatation (e.g. an increase in FBF response to 4 microg/min methacholine from 325 +/- 29% to 411 +/- 41%, P < 0.05), with no difference between the two study drugs. No significant changes in endothelium-independent vasodilatation were induced by irbesartan or by atenolol. CONCLUSIONS: The present study shows that 3 months of antihypertensive therapy with irbesartan or atenolol improves endothelium-dependent vasodilatation.
Titel: |
Treatment with irbesartan or atenolol improves endothelial function in essential hypertension
|
---|---|
Autor/in / Beteiligte Person: | von zur Mühlen, Bengt ; Kahan, Thomas ; Hägg, Anders ; Millgård, Jonas ; Lind, Lars |
Link: | |
Zeitschrift: | Journal of Hypertension, Jg. 19 (2001), Heft 10, S. 1813-1818 |
Veröffentlichung: | 2001 |
Medientyp: | unknown |
ISSN: | 0263-6352 (print) ; 1473-5598 (print) |
Schlagwort: |
|
Sonstiges: |
|