Long-Term Effects of Olmesartan, an Ang II Receptor Antagonist, on Blood Pressure and the Renin-Angiotensin-Aldosterone System in Hypertensive Patients.

DOI PubMed 被引用文献11件 参考文献33件
  • ICHIKAWA Shuichi
    Department of Internal Medicine, Cardiovascular Hospital of Centeral Japan
  • TAKAYAMA Yoshiaki
    Department of Internal Medicine, Cardiovascular Hospital of Centeral Japan

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The object of this study is to evaluate the long-term effects of olmesartan on hypertension and the renin-angiotensin-aldosterone system in hypertensive patients. This study evaluated 26 hypertensive male and female outpatients, 38-69 years of age, with a systolic blood pressure ≥160 mmHg and/or a diastolic blood pressure ≥95 mmHg. Oral doses of 5 to 40 mg olmesartan were administered once daily. Blood pressure and renin-angiotensin-aldosterone parameters (plasma renin activity and plasma angiotensin I, II, and aldosterone concentrations) were evaluated at 12-16 weeks, 6 months, and 1 year after the start of olmesartan administration. Systolic and diastolic blood pressures were significantly decreased following the administration of olmesartan. The observed decreases in systolic and diastolic blood pressures after 1 year of treatment were 28.8±2.1 mmHg and 15.8±1.3 mmHg, respectively. On change was observed in the pulse rate. The plasma renin activity increased significantly from a baseline premedication mean of 1.26±0.31 ng/ml/h to a mean of 2.58±0.74 ng/ml/h and 2.87±0.72 ng/ml/h after 6 months and 1 year of treatment, respectively. Angiotensin II levels decreased significantly from a baseline of 20.4±3.2 pg/ml to a mean of 8.6±2.1 pg/ml and 6.8±1.8 pg/ml after 6 months and 1 year of treatment, respectively. The plasma aldosterone level also decreased significantly after 6 months of treatment. In hypertensive patients, the long-term administration of olmesartan, a novel AT1 receptor antagonist, decreased both blood pressure and plasma angiotensin II levels. (Hypertens Res 2001; 24: 641-646)

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