JOURNAL ARTICLE
MULTICENTER STUDY
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Recurrence and graft loss after kidney transplantation for henoch-schonlein purpura nephritis: a multicenter analysis.

BACKGROUND AND OBJECTIVES: The actuarial risk at 5 years for clinical recurrence of Henoch-Schönlein purpura nephritis (HSPN) and graft loss caused by recurrence of -HSPN after renal transplantation was reported in 1994 to be as high as 35% and 11%, respectively. The aim of this study is to re-evaluate, in a large cohort of patients with a long-term follow-up, whether these rates have changed.

DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Patients from six transplant centers in Belgium and France with strict diagnostic criteria of HSPN and a potential post transplant follow-up of ≥3 years were included.

RESULTS: Forty-three patients were included. Patient survival is excellent: 98%, 95%, and 95% at 5, 10, and 15 years, respectively. Overall graft survival rates were 84%, 66%, and 56% at 5, 10, and 15 years, respectively. Clinical recurrence in a first kidney transplant occurred in five patients. Three patients lost their first graft due to HSPN recurrence 19 to 96 months after transplantation, two of whom had systemic signs of the illness. Actuarial risk for clinical recurrence in a first graft is 2.5% and 11.5% at 5 and 10 years, respectively. Actuarial risk for graft loss caused by recurrence in a first graft is 2.5% and 7.5% at 5 and 10 years, respectively. Severity of the disease at presentation and type of immunosuppression after transplantation did not affect recurrence.

CONCLUSIONS: We found that recurrence rates of HSPN after transplantation are lower than previously reported. The actuarial risk of graft loss from recurrence in a first graft is 7.5% at 10 years.

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