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      Forearm Venous Reflex Activity in Normal and Essential Hypertensive Subjects

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      Journal of Vascular Research

      S. Karger AG

      Hyperventilation, Valsalva maneuver, Venomotor tons, Cold pressor, Upright tilt

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          Abstract

          Superficial forearm venous pressures, taken at rest and following rapid arterial occlusion, were measured in 11 normal and 14 essential hypertensive subjects, together with the changes in venous pressure induced by reflexogenic maneuvers (cold, Valsalva, hyperventilation, upright tilt) with the forearm circulation arrested. No significant difference was found in either the resting venous pressures (8.7 ± 0.9 mm Hg and 7.8 ± 0.6 mm Hg, respectively), the occluded venous pressures (20.7 ± 1.7 mm Hg and 19.7 ± 2.2 mm Hg), or the reflex venoconstrictor responses of the two groups ( cold: 12.1 ± 2.7 mm Hg and 14.4 ± 2.3 mm Hg; Valsalva: 8.4 ± 2.1 mm Hg and 8.8 ± 1.2 mm Hg; hyperventilation: 7.5 ± 1.8 mm Hg and 6.8 ± 1.1 mm Hg; 50° tilt: 6.7 ± 0.9 mm Hg and 6.6 ± 1.4 mm Hg). It is suggested that, even with normal venous pressure and reflex venomotor reactivity, other venous abnormalities might explain certain hemodynamic changes observed in essential hypertension.

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          Author and article information

          Journal
          JVR
          J Vasc Res
          10.1159/issn.1018-1172
          Journal of Vascular Research
          S. Karger AG
          1018-1172
          1423-0135
          1970
          1970
          18 September 2008
          : 7
          : 4
          : 204-211
          Affiliations
          Research Division, Cleveland Clinic Foundation, Cleveland, Ohio and the Department of Medicine, The University of Oklahoma Medical Center, Oklahoma City, Okla.
          Article
          157836 Angiologica 1970;7:204–211
          10.1159/000157836
          © 1970 S. Karger AG, Basel

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          Page count
          Pages: 8
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