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Year : 2019  |  Volume : 13  |  Issue : 2  |  Page : 122-126

Utility of plasma exchange in early recurrent C3 glomerulopathy

1 Department of Histopathology, Post-Graduate Institute of Medical Institute and Research (PGIMER), Chandigarh, India
2 Department of Nephrology, Post-Graduate Institute of Medical Institute and Research (PGIMER), Chandigarh, India
3 Department of Transplant Surgery, Post-Graduate Institute of Medical Institute and Research (PGIMER), Chandigarh, India

Correspondence Address:
Dr. Raja Ramachandran
Department of Nephrology, PGIMER, Chandigarh - 160 012
Ritambhra Nada
Professor, Department of Histopathology, PGIMER, Chandigarh - 160 012
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijot.ijot_78_18

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Introduction: Treatment options for recurrent C3 glomerulopathy (C3G) are not explored in large trials. Only Eculizumab has been successfully used to improve the renal function in patients with recurrent C3G. In the current report, we are sharing our experience with plasma exchange (PLEX) in the management of early recurrent C3G post-renal transplantation. Materials and Methods: A total of four patients underwent PLEX. Time to recur was less than two weeks in all the patients. Serology levels, autoantibody testing and limited genetic workup was done in all the four patients. The clinical details of patients were recorded. Results: All the patients underwent 5 PLEX (40 ml/kg/session) with fresh frozen plasma as the replacement. The median time for post-transplant recurrence was 3-days. Immediate reduction in serum creatinine was seen in three (75%) patients. After a median last follow-up of 8.5 (range: 4-18) months, two (50%) patients achieved remission and the other two (50%) had resistant disease resulting in graft loss. Three patients tested positive for autoantibodies (two cases had positive C3-nephritic factor and one had anti-complement factor-H autoantibodies. Complement factor H gene analysis revealed rs1061170; p.His402Tyr (missense variant), rs1061147; p.Ala307= (synonymous variant) and rs2274700; p.Ala473= (synonymous variant) in three cases. All the three patients who had immediate response to PLEX had positive autoantibodies against complement pathway regulators. Conclusion: In the present report, we performed extensive workup for complement pathway abnormality and found that patients with recurrent C3G following transplantation having autoantibodies benefited with PLEX.

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