• The American surgeon · Apr 1975

    Comparative Study

    Hemodynamics of experimental portal venous occlusion in dogs.

    • J C Kerr, D G Reynolds, and K G Swan.
    • Am Surg. 1975 Apr 1; 41 (4): 198-202.

    AbstractThe effects of graded occlusion of the portal vein upon hepatic arterial blood flow were studied in anesthetized dogs to evaluate the so-called "reciprocal relationship" between portal venous flow and hepatic arterial flow in maintaining oxygenation of the liver. An obstruction that increased portal venous pressure to 20 mm Hg was accompanied by a transient increase in hepatic arterial blood flow without changing the other hemodynamic parameters. Release of portal venous occlusion was accompanied by a transient fall in hepatic arterial blood flow in this group of experiments. Increasing portal venous pressure to 30 mm Hg caused a gradual but progressive fall in arterial pressure accompanied by a significant fall in hepatic arterial blood flow. With complete obstruction of the portal vein there is a reduction in arterial pressure to the same level of portal venous pressure and a significant and sustained diminution in hepatic arterial blood flow. These observations conflict with previously described theories of a relationship between diminution in portal venous flow and increases in hepatic arterial blood flow.

      Pubmed     Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…