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Functional studies in 6 days successful preserved canine kidneys
The Journal of Urology
|January 1, 1982
Summary
Ex vivo perfusion significantly improved kidney preservation. Dogs receiving 3 hours of ex vivo perfusion after 6 days of hypothermic machine preservation had a 100% survival rate, unlike the control group.
Area of Science:
- Nephrology
- Transplantation Biology
- Organ Preservation
Background:
- Kidney preservation is crucial for transplantation success.
- Long-term hypothermic machine perfusion (HMP) is a standard method.
- Improving ex vivo perfusion techniques may enhance organ viability.
Purpose of the Study:
- To evaluate the impact of intermittent ex vivo perfusion during HMP on canine kidney preservation.
- To assess the functional recovery of preserved kidneys post-implantation.
Main Methods:
- Canine kidneys underwent 6 days of HMP.
- Group 1: Continuous HMP.
- Group 2: Intermittent ex vivo perfusion for 3 hours halfway through HMP.
Main Results:
- Group 1 survival: 1 out of 6 dogs.
- Group 2 survival: 6 out of 6 dogs.
- Low filtration fraction (<0.26) predicted graft survival.
- Group 2 showed improved tubular secretion and water reabsorption during ex vivo perfusion.
Conclusions:
- Intermittent ex vivo perfusion during HMP enhances canine kidney graft survival.
- Early post-implantation filtration fraction is a reliable indicator of kidney function.
- Ex vivo perfusion may improve cellular function during preservation.