Posttransplant recurrence of primary glomerulonephritis

Area of Science:

• Nephrology
• Transplantation Immunology
• Glomerular Diseases

Background:

• Glomerulonephritis (GN) recurrence post-kidney transplantation poses a threat to graft survival.
• Specific GN types like IgA nephritis (IgAN), focal segmental glomerulosclerosis (FSGS), idiopathic membranous nephropathy (IMN), and membranoproliferative GN (MPGN) have varying recurrence rates and prognoses.

Purpose of the Study:

• To review the recurrence patterns and clinical outcomes of primary GN after kidney transplantation.
• To highlight the impact of different GN types on graft survival and discuss potential management strategies.

Main Methods:

• Review of existing literature on GN recurrence after kidney transplantation.
• Analysis of recurrence rates, risk factors, and graft survival for IgAN, FSGS, IMN, and MPGN.
• Discussion of treatment outcomes for recurrent GN.

Main Results:

• IgAN recurrence affects about one-third of patients, with minimal impact on graft survival unless progression is rapid.
• FSGS recurrence is common, often presenting with nephrotic proteinuria, and typically has an unfavorable prognosis, though plasmapheresis and rituximab show promise.
• IMN recurrence occurs in 30-40% of cases with no significant impact on graft survival compared to other renal diseases.
• MPGN recurrence rates range from 27-65%, with type II having a more severe prognosis.
• While recurrent GN can worsen outcomes, its impact is often less significant than other risk factors for long-term graft survival.

Conclusions:

• Recurrence of primary GN is a significant concern after kidney transplantation, with variable effects on graft survival depending on the specific type of GN.
• Early intervention with treatments like plasmapheresis and rituximab may improve outcomes for certain recurrent GN, such as FSGS.
• Despite the risks, the overall impact of recurrent GN on long-term graft survival may be outweighed by other contributing risk factors.