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Year : 2019  |  Volume : 13  |  Issue : 3  |  Page : 234-235

Successful renal transplantation in a patient with perinuclear antineutrophil cytoplasmic antibody-associated vasculitis with chronic kidney disease with complement-dependent cytotoxicity crossmatch positivity (autoantibody induced) and donor-specific antibodies and flow cytometry crossmatch negative

Department of Nephrology, IKDRC ITS Civil Hospital, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. G S Kasat
Department of Nephrology, IKDRC ITS Civil Hospital, Ahmedabad, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijot.ijot_32_17

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The positive complement-dependent cytotoxicity crossmatch (CDCXM) is considered as a contraindication for renal transplantation (RT) since long in an effort to avoid immediate rejection. There has been tremendous development in our understanding of transplant immunology today, and more sensitive and specific methods such as flow cytometry crossmatch (FCXM) and solid-phase antibody screening are used for detailed immunological assessment. We report successful RT in a 23-year-old girl with end-stage renal disease due to vasculitis on dialysis for 2 years. Before transplantation, the patient had Anti Human Globulin CDCXM positive while Dithioerythritol (DTT)-CDCXM was negative. The patient had no donor-specific antibodies examined by Luminex single-antigen beads and her FCMXM was negative. In the posttransplant period, there was no evidence of immune injury. Her serum creatinine was 0.7 mg/dl on the 3rd posttransplant day at the time of discharge. Induction immunosuppression was rabbit thymoglobulin (1.5 mb/kg) and methylprednisolone (500 mg, 3 doses) and maintenance immunosuppression was tacrolimus + prednisolone + mycophenolic acid. We found that even though CDCXM positivity has been traditionally considered as a contraindication for renal transplantation, in few carefully selected patients, we can still proceed to renal transplantation even if CDCXM is positive if more advanced and robust immunological tools such as FCMXM and donor-specific antibodies are negative. In our patient, AHG-CDCXM was positive while DTT-CDCXM was negative making it clear that antibodies of IgM origin were probably responsible for CDCXM positivity.

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