Hørven I, Lundar T, Lilleaasen P, Hysing E, Stokke O. The effect of haemodilution on arterial blood pressure, central venous pressure, intracranial and intra-ocular pressures in pigs.
SCANDINAVIAN JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 1981;
15:273-7. [PMID:
7347898 DOI:
10.3109/14017438109100586]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
During the open-heart surgery, haemodilution is performed before extracorporeal circulation is started by the sampling of autologous blood and substituting an electrolyte solution. Following extracorporeal circulation, first the machine-blood and then the autologous blood is reinfused. The haemodilution and reinfusion procedures lead to alterations in blood osmolality and tissue fluid distribution, initiating changes in arterial blood pressure, central venous pressure, intracranial and intraocular pressures. These changes were studied in pigs. It is believed that these potentially hazardous pressure alterations can be minimized through proper handling of the procedure. This study presents some of the mechanisms involved.
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