2 research outputs found
PowerPoint Slides for: Predicting Post-Transplant Recurrence of IgA Nephropathy: The Importance of Crescents
<p><b><i>Background:</i></b> Most studies that have assessed the
predictors of recurrent IgA nephropathy (IgAN) in the renal allograft
have focused on post-transplant features. Identifying high-risk
pre-transplant features of IgAN is useful for counseling patients and
may help in tailoring post-transplant immunosuppression. <b><i>Methods:</i></b>
We investigated the pre-transplant clinical and biopsy features of 62
patients with IgAN who received transplants at Columbia University
Medical Center from 2001 to 2012 and compared the characteristics and
outcomes of patients with IgAN recurrence to those without recurrence.
The primary outcome was time to recurrent IgAN. Secondary outcomes were a
composite of doubling of creatinine or allograft failure, and recurrent
IgAN as a cause of allograft dysfunction. <b><i>Results:</i></b> Of the
62 patients, 14 had recurrent IgAN in the allograft. Mean time to
recurrence was 2.75 years. Those with recurrent disease were younger at
the time of native kidney biopsy (29 vs. 41 years, p < 0.0009). Black
race and Hispanic ethnicity composed a higher proportion of the
recurrent disease group. On multivariable analysis, significant
predictors of recurrent IgAN included age at diagnosis (hazards ratio
(HR) 0.911, 95% CI 0.85-0.98), burden of crescents on native biopsy (HR
1.21 per 10% increase in crescents, 95% CI 1.00-1.47) and allograft
rejection (HR 3.59, 95% CI 1.10-11.7). <b><i>Conclusions:</i></b>
Features of native IgAN can help predict the risk of recurrent disease
in the renal allograft. In particular, immunologically active disease
represented by earlier age of onset and greater burden of crescents on
native biopsy is more likely to recur after transplant.</p
Supplementary Material for: Idiopathic Membranous Nephropathy: Clinical and Histologic Prognostic Features and Treatment Patterns over Time at a Tertiary Referral Center
<b><i>Background:</i></b> Idiopathic membranous nephropathy (i-MN) is a leading cause of nephrotic syndrome in adults and results in end-stage renal disease in approximately one third of patients. There are few large, long-term US studies evaluating clinical and histologic prognostic factors in i-MN. <b><i>Methods:</i></b> We describe 132 patients with biopsy-proven i-MN who were followed for a mean period of 68 months at our tertiary referral center from 1977 to 2009, and we analyzed clinical and histologic features that predicted renal outcomes. <b><i>Results:</i></b> The presence of hypertension and treating physician’s decision to institute immunosuppression were negative predictors of attaining complete or partial remission. Among clinical variables, impaired renal function (eGFR <60 ml/min/1.73 m<sup>2</sup>) at time of presentation was the only variable at presentation associated with an increased risk of reaching end-stage renal disease. The use of statins and RAAS blockers were protective. The choice of corticosteroids as the initial immunosuppressive agent by referring physicians decreased over time but even in the most recent era (2000–2008) was significant (33%). <b><i>Conclusion:</i></b> Renal function at presentation and non-white race were the main predictors of a worse renal outcome. Corticosteroid therapy is still being adopted as first-line therapy in a significant number of patients in this era. The development of guidelines may help clarify the treatment strategies of i-MN