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  • Title: Cascade plasmapheresis as preconditioning regimen for ABO-incompatible renal transplantation: a single-center experience.
    Author: Jha PK, Tiwari AK, Bansal SB, Sethi SK, Ahlawat R, Kher V.
    Journal: Transfusion; 2016 Apr; 56(4):956-61. PubMed ID: 26592368.
    Abstract:
    BACKGROUND: Removal of anti-ABO is an important component of the preconditioning regimen for ABO-incompatible (ABOi) renal transplant. Cascade plasmapheresis (CP) is one of the extracorporeal methods of antibody removal, others being conventional plasma exchange (PE) and immunoadsorption. There is no previous published experience with CP in this context. The purpose of this study was to present an early experience with this approach. STUDY DESIGN AND METHODS: Consecutive ABOi renal transplant recipients in whom CP was used for pre- and posttransplant anti-ABO removal were included. All the patients received intravenous rituximab 2 weeks before transplant. After 1 week, CP was started along with oral tacrolimus and mycophenolate sodium. Alternate-day CP was done to attain immediate pretransplant antibody titer of not more than 8. RESULTS: Fifteen ABOi renal transplant recipients had baseline (pretreatment) antibody titers ranging from 16 to 512. Desensitization rate was 100%. The mean number of procedures before transplant to achieve titer of not more than 8 was 3.27 ± 1.39. Patient survival was 93% and death-censored graft survival was 87%. Biopsy-proven acute rejection was seen in three patients (20%), one (6.67%) being acute antibody mediated rejection. The complication rate during CP was 4% and two patients had bleeding complication after surgery. Posttransplant infection rate was 13%. CONCLUSION: Based on limited number of patients, we conclude that CP is a safe and effective extracorporeal method for pretransplant ABO antibody removal in patients undergoing ABOi transplant. Patients undergoing CP met target preoperative antibody titers and the clinical outcomes were acceptable.
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