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Nephrol Dial Transplant. 1994;9(3):309-12.

Recurrent mesangial IgA nephritis following renal transplantation.

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  • 1Renal Unit, Royal Adelaide Hospital, Australia.


Recurrence of mesangial IgA deposits in renal allografts of patients whose original disease was primary IgA nephropathy (IgAN) has been studied. Forty-six patients with primary IgAN received 51 renal allografts and have been followed for 3-183 months. A prospective study of 11 patients (11 biopsies) and a retrospective analysis of 17 patients (16 biopsies; 2 nephrectomy specimens) have been combined. Seventeen of the 29 allografts had recurrent mesangial IgA deposits and of these three patients have negative urinalysis, normal glomeruli by light microscopy, and stable renal function; six patients have microhaematuria, mesangial proliferative nephritis, but at present stable renal function; and five have mesangial proliferative glomerulonephritis with microhaematuria, heavy proteinuria, hypertension, and progressive allograft failure secondary to IgA disease alone, and one of these is now back on dialysis. Three other grafts with recurrent deposits are failing because of transplant glomerulopathy or rejection. The only predictor identified for recurrence of mesangial IgA deposits was length of time post-transplantation, with allograft tissue being studied at 45.9 +/- 10.0 versus 15.3 +/- 4.8 months (P = 0.008) post-transplantation in patients with and without recurrent deposits respectively. Cyclosporin A did not prevent recurrence. By virtue of a longer follow-up of patients post-transplantation than all other reported series, these results suggest that with increasing time post-transplantation recurrence of mesangial IgA disease will become increasingly important as a cause of progressive allograft dysfunction and failure unless effective treatment is found for the primary disease.

[PubMed - indexed for MEDLINE]
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