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A decade followup in early cases of renal homotransplantation
Insights
Long-term renal transplantation outcomes show that related donor kidneys offer better survival rates. Early histopathology, particularly glomerular lesions, significantly impacts graft longevity and patient prognosis.
Area of Science:
- Nephrology
- Transplantation Surgery
- Immunology
Background:
- Early renal homotransplantation series established foundational understanding of graft survival and patient outcomes.
- Long-term follow-up is crucial for assessing the durability of early renal transplant procedures.
Purpose of the Study:
- To evaluate the long-term survival and graft function of renal homotransplantation recipients.
- To identify prognostic factors influencing graft longevity and patient survival.
- To assess the impact of donor type and histopathological findings on outcomes.
Main Methods:
- Retrospective analysis of 64 consecutive renal homotransplantation cases with long-term follow-up (over a decade).
- Assessment of graft survival, patient survival, and causes of death.
- Histopathological analysis of renal homograft biopsies to correlate with outcomes.
- Evaluation of the influence of donor relationship (related vs. nonrelated) and HLA matching.
Main Results:
- 26 (72%) of 36 surviving recipients in 1965 were still alive nine years later, with 22 having functioning original grafts.
- Graft survival was significantly better with related donors (52% survival) compared to nonrelated donors (2 of 18 alive).
- Minor histopathological abnormalities in biopsies predicted long-term graft function, while serious glomerular lesions indicated a grave prognosis.
Conclusions:
- Long-term renal homografts demonstrate significant durability, especially those from related donors.
- Early histopathological findings, particularly glomerular integrity, are critical predictors of long-term graft survival.
- Renal transplantation, even in its early stages, offered substantial rehabilitation potential for patients.
Abstract:
Sixty-four consecutive patients underwent renal homotransplantation 10 1/6 to 11(1/2) years ago, 46 from related and 18 from nonrelated living donors. Thirty-six of these recipients were alive when this series was presented to the American Surgical Assocation in 1965. Now, nine years later, 26 (72%) of the 36 still survive, in 22 instances with function of their original grafts. The 10 who died in the interim tended to have subnormal renal function or graft failure. However, the actual causes of death included 2 or more examples each of myocardial infarction, hepatitis, or other systemic infections. The prognosis for achieving a one decade survival was not obviously related to HL-A tissue match. The best results were with related kidneys, within which subgroup 24 (52%) of the original recipients are still alive. However, there was no particular category of consanguineous donor that had a marked superiority. Only 2 of 18 nonrelated recipients are still alive. All 36 patients who were alive in 1965 had a biopsy of their renal homograft. Kidneys that were destined to function for a decade tended to have relatively minor histopathologic abnormalities. If serious glomerular lesions were found, the outlook for long graft survival was grave. Vascular lesions had a somewhat less serious import. Mononuclear cell infiltration, tubular atrophy, and interstitial fibrosis proved prognostically to be the least significant. Long-term followup of these early cases has shown the durability of chronic renal homografts, particularly if these are from related donors, and has demonstrated the very high degree of rehabilitation that could be achieved even in the early days of renal homotransplantation.