Related Experiment Videos
[Effect of cerebral circulation standstill on liver blood flow]
Zeitschrift Fur Experimentelle Chirurgie, Transplantation, Und Kunstliche Organe : Organ Der Sektion Experimentelle Chirurgie Der Gesellschaft Fur Chirurgie Der DDR
|January 1, 1983
Insights
Cerebral death in dogs initially increased hepatic blood flow and cardiac output. After three hours, brain death led to decreased hepatic blood flow and cardiac output.
Area of Science:
- Physiology
- Cardiovascular Research
- Hepatology
Context:
- Investigating the immediate and delayed hemodynamic responses to cerebral death.
- Understanding the impact of brain death on hepatic circulation and overall cardiac function.
Purpose:
- To document changes in arterial pressure, heart rate, cardiac output, and hepatic blood flow during experimental cerebral death in dogs.
- To analyze the relationship between hepatic blood flow and cardiac time volume during the progression of brain death.
Summary:
- During the initial phase of experimental cerebral death in dogs, an increase in hepatic blood flow was observed, correlating with cardiac output.
- Following three hours of brain death, a significant decrease in hepatic blood flow and cardiac output was detected, indicating a sustained decline in cardiovascular function.
Impact:
- Provides critical data on the temporal dynamics of hepatic circulation following cessation of brain function.
- Contributes to the understanding of organ-specific responses during brain death, relevant for transplantation and critical care research.
Abstract:
Arterial pressure, heart-rate, cardiac output, and blood-flow in the hepatic artery and the portal vein were recorded during the experimental death of the cerebrum in dogs. An increase of the hepatic blood-flow with a consistent portion in the heart time volume was to be seen in the beginning of the death of the cerebrum. A decrease of the hepatic blood-flow with a diminished portion in the heart time volume was detected in the state of brain death after 3 hours.