Blood Flow Changes in Liver Tumors
Author Information
Author(s): R. Carter, J.H. Anderson, T.G. Cooke, J.N. Baxter, W.J. Angerson
Primary Institution: University Department of Surgery, Glasgow Royal Infirmary
Hypothesis
The changes in splanchnic haemodynamics are the result of a circulating vasoactive agent.
Conclusion
Intrahepatic tumors may be associated with a circulating vasoactive agent that increases vascular resistance.
Supporting Evidence
- The vascular resistance was significantly greater during perfusion by tumour-bearing animals.
- Mean flow through the segments was less during perfusion by tumour-bearing animals.
- The study suggests that the increase in splanchnic vascular resistance may be mediated by a circulating agent.
Takeaway
When rats with liver tumors were tested, their blood flow resistance was higher than that of normal rats, suggesting something in their blood affects how blood flows.
Methodology
Rat small bowel segments were cross-perfused with arterial blood from paired tumor-bearing and control rats to measure vascular resistance.
Limitations
The study was limited to a small sample size and only included male hooded Lister rats.
Participant Demographics
Male hooded Lister rats, weighing 200-250 g.
Statistical Information
P-Value
0.036
Statistical Significance
p<0.05
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