Abstract
The effective compliance is defined as the relation of change in blood volume to change in central venous pressure. It was measured in 8 upright sitting male subjects and amounted to 3.3 ml/(mm Hg×kg BW). It is, therefore, by about 50% greater than the effective compliance in the supine subject which amounts to 2.3 ml/(mm Hg×kg BW). This difference is probably due to the posture dependent blood volume distribution in the low pressure system whose “upper” and “lower” sections have nonlinear pressure-volume characteristics. Immersion to the neck reduces the effective compliance to about half the control value (1.9 ml/(mm Hg×kg BW) which probably constitutes the effective compliance of the intrathoracic circulatory compartment.
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References
Arborelius, M., Jr., Balldin, U. I., Lilja, B., Lundgren, C. E. G.: Hemodynamic changes in man during immersion with the head above water. Aerospace Med.43, 592–598 (1972)
Echt, M., Düweling, J., Gauer, O. H., Lange, L.: Effective compliance of the total vascular bed and the intrathoracic compartment derived from changes in central venous pressure induced by volume changes in man. Circ. Res.34, 61–68 (1974)
Echt, M., Lange, L., Gauer, O. H.: Changes of peripheral venous tone and central transmural venous pressure during immersion in a thermo-neutral bath. Pflügers Arch.352, 211–217 (1974)
Gauer, O. H., Henry, J. P.: Neurohormonal control of plasma volume. Intern. Rev. Physiol., Cardiovascular Physiology II, Vol. 9, pp. 145–190 (A. C. Guyton and A. W. Cowley, eds.). Baltimore: University Park Press 1976
Gauer, O. H., Thron, H. L.: Postural changes in the circulation. Handbook of Physiology, Sec. 2: Circulation, Vol. III, pp. 2409–2439 (1965)
Gauer, O. H., Henry, J. P., Sieker, O. H.: Changes in central venous pressure after moderate hemorrhage and transfusion in man. Circ. Res.4, 79–84 (1956)
Gauer, O. H., Henry, J. P., Sieker, H. O., Wendt, W. E.: Heart and lungs as a receptor region controlling blood volume. Am. J. Physiol.167, 786 (1951)
Guyton, A. C., Coleman, T. G.: Long-term regulation of the circulation: Interrelationships with body fluid volumes. In: Physical bases of circulatory transport: Regulation and exchange, pp. 179–201 (E. B. Reeve, A. C. Guyton, eds.). Philadelphia-London: Saunders 1967
Risch, W. D., Koubenec, H. J., Beckmann, U., Lange, S., Gauer, O. H.: The effect of graded immersion on heart volume, central venous pressure, pulmonary blood distribution, and heart rate in man. Pflügers Arch.374, 115–118 (1978)
Sachs, L.: Angewandte Statistik, Planung und Auswertung. Methoden und Modelle, 4. Aufl. Berlin-Heidelberg-New York: Springer 1974
Ghron, H. L., Brechmann, W., Wagner, J., Keller, K.: Quantitative Untersuchungen über die Bedeutung der Gefäßdehnungsreceptoren im Rahmen der Kreislaufhomoiostase beim wachen Menschen. I. Das Verhalten von arteriellem Blutdruck und Herzfrequenz bei abgestufter Veränderung des transmuralen Blutdrucks im Bereich des Carotissinus. Pflügers Arch.293, 68–99 (1967)
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Koubenec, HJ., Risch, W.D. & Gauer, O.H. Effective compliance of the circulation in the upright sitting posture. Pflugers Arch. 374, 121–124 (1978). https://doi.org/10.1007/BF00581291
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DOI: https://doi.org/10.1007/BF00581291