Ruptured human renal allograft. Pathogenesis and management.

Area of Science:

• Nephrology
• Transplant Surgery
• Immunology

Background:

• Acute allograft rupture is a rare complication following renal transplantation.
• It typically occurs during the early post-transplant period, coinciding with impaired graft function.

Purpose of the Study:

• To investigate the incidence, clinical course, and outcomes of acute allograft rupture in renal transplant recipients.
• To determine the relationship between allograft rupture and acute rejection.
• To assess the necessity of nephrectomy in cases of renal allograft rupture.

Main Methods:

• Retrospective review of 474 renal transplants performed between January 1963 and January 1977.
• Analysis of clinical data, surgical findings, and histopathological biopsy results from patients experiencing allograft rupture.
• Evaluation of graft function and patient outcomes post-surgical repair.

Main Results:

• Four cases (0.8% incidence) of acute allograft rupture were identified, occurring 5-16 days post-transplant.
• All ruptures were associated with acute allograft rejection, ranging from mild to severe.
• Successful surgical repair was performed in all cases; two grafts ultimately failed, while two remained functional at one year.
• No patients required nephrectomy due to uncontrollable hemorrhage.

Conclusions:

• Acute allograft rupture in renal transplants is associated with rejection but does not necessarily portend a worse prognosis.
• Surgical repair is a viable option, and nephrectomy can often be avoided.
• Early detection and management of rejection are crucial in preventing severe complications like rupture.