The functional pattern of the transplanted kidney during the first year

Area of Science:

• Nephrology
• Transplant Surgery
• Immunology

Background:

• Kidney transplantation is a vital treatment for end-stage renal disease.
• Assessing early graft function is crucial for predicting long-term outcomes.
• Donor type (living vs. cadaveric) and initial graft function are key factors.

Purpose of the Study:

• To evaluate kidney function and graft survival in renal transplant recipients.
• To compare outcomes between living donor and cadaveric kidney transplants with immediate function.
• To assess the impact of primary graft anuria on long-term graft performance.

Main Methods:

• Prospective study of renal transplant recipients over 1-14 months.
• Categorization into groups based on donor type (living vs. cadaveric) and initial graft function.
• Measurement of kidney function using clearances (125I-iothalamate, creatinine, 131I-hippuran).

Main Results:

• Transplants with immediate function reached a functional maximum within three weeks.
• Kidney function remained stable in both living and cadaveric donor groups with initial function.
• Graft function and one-year survival were significantly poorer in grafts with primary anuria compared to those with initial function.
• One-year graft survival was 68% in cadaveric kidney transplants with good initial function.

Conclusions:

• Immediate graft function is a strong predictor of successful renal transplantation.
• Early optimal function, irrespective of donor source, leads to better long-term outcomes.
• Primary graft anuria is associated with inferior graft function and survival post-transplantation.