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  • Title: Spontaneous reversal of portal blood flow demonstrated by percutaneous transhepatic catheterization: report of two cases.
    Author: Takayasu K, Takashi M, Musha H, Ohnishi K, Omata M, Kobayashi C, Okuda K.
    Journal: Gastroenterology; 1982 Apr; 82(4):753-7. PubMed ID: 7060895.
    Abstract:
    Two patients are described in whom percutaneous transhepatic catheterization of the portal vein for a hemodynamic study demonstrated a continuous reversed blood flow in the portal vein, entering into a large collateral. The measurements made of blood pressure in the superior mesenteric, splenic, and left gastric veins, and of ammonia, immunoreactive insulin, and C-peptide in blood taken from these and peripheral veins all indicated reversed portal vein blood flow. The evidence for retrograde portal vein blood flow was obtained in only 2 of 203 patients with cirrhosis in whom portal hemodynamics were studied by the same procedure. Thus, spontaneous reversal of portal vein blood flow does occur, but very rarely.
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