Haemodynamics during partial extracorporeal circulation in the dog.

Autor: Schrijen, F., Gille, J.
Zdroj: Pflügers Archiv: European Journal of Physiology; 1977, Vol. 367 Issue 3, p229-233, 5p
Abstrakt: Circulatory changes were studied in 9 mongrel dogs during partial extracorporeal circulation from the right atrium to the carotid and/or femoral artery. The bypass circuit consisted of a membrane oxygenator and a roller pump. Cardiac output and arterial pressure decreased during bypass, but changed little when extracorporeal flow (EF) was increased from 1/10 to 3/4 of control cardiac output. Right atrial and pulmonary wedge pressures were lower than control. Total blood flow was equal to control when EF was 1/2 of the control cardiac output, and exceeded control flow at 3/4. Such enhanced venous return presumably resulted from sympathetic stimulation via atrial mechanoreceptors. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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