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Hemodynamic and Hemorheologic Effects of IV Dilevalol in Hypertensive Patients

Institute of Clinical Medicine, University of Siena, Italy

S. Pecchi

Institute of Clinical Medicine, University of Siena, Italy

F. Guideri

Institute of Clinical Medicine, University of Siena, Italy

V. DeFranco

Institute of Clinical Medicine, University of Siena, Italy

P. Damiani

Institute of Clinical Medicine, University of Siena, Italy

C. Galigani

Institute of Clinical Medicine, University of Siena, Italy

M. Saletti

Institute of Clinical Medicine, University of Siena, Italy

M.S. Verzuri

Institute of Clinical Medicine, University of Siena, Italy

P. Blardi

Institute of Clinical Medicine, University of Siena, Italy

T. Di Perri

Institute of Clinical Medicine, University of Siena, Italy

The authors evaluated the effect of Dilevalol infusion on blood pressure, heart rate, central hemodynamics, and rheologic parameters in hospitalized inpatients affected with mild or moderate hypertension.

After a dose-finding phase and a washout period of one week, 10 patients aged fifty to seventy-two-years (median 61.5) were given either a single dose of Dilevalol 60 mg or placebo, and seven days later they underwent the other treatment, according to a single-blind, crossover design. Central hemodynamic measurements were performed by means of M-mode echocardiography, and hemorheologic parameters were evaluated by means of strain-gauge plethysmography. The maximal increase in lower extremity flow at rest had been obtained with the infusion of 60 mg Dilevalol during dose-finding, and so this dose was chosen for the second part of the study. The infusion of Dilevalol significantly increased rest flow and decreased blood viscosity, but the changes in central, parameters were not considered clinically relevant, although statistically significant. Blood pressure decreased without significant changes in heart rate.

Thus, the acute administration of Dilevalol reduced blood pressure, without affecting heart rate and central hemodynamics, confirming the vasodilating effect of the drug. A significant improvement was also shown on blood viscosity in these hypertensive patients.

Angiology, Vol. 42, No. 9, 703-710 (1991)
DOI: 10.1177/000331979104200904


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