said to be fatal except in hepatic cirrhosis (Thole, 1939).A vein graft may not be immediately available to repair such defects of the vein wall.Operating upon dogs, Csillag et al. (1953) have successfully repaired 20-mm.defects of the portal vein by suturing a serosal covered loop of bowel over the defect.They think that this method may be life-saving in cases of traumatic defects of the great abdominal veins in humans.
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E. L. Birse (1956) studied this question.