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A Virtualcrossmatch-Based Strategy for Perioperative Desensitization in Lung Transplant Recipients with Pre-Formed Donor-Specific Antibodies: 3-year Outcome

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Purpose Pre-formed donor-specific antibodies (pf-DSA) are associated with worse outcome after lung transplantation (LTx) and might limit access to LTx. A virtual crossmatch (CXM)-based strategy for perioperative desensitization protocol has… Click to show full abstract

Purpose Pre-formed donor-specific antibodies (pf-DSA) are associated with worse outcome after lung transplantation (LTx) and might limit access to LTx. A virtual crossmatch (CXM)-based strategy for perioperative desensitization protocol has been used for immunized LTx candidates since 2012 at Foch hospital. We compared the outcome of desensitized LTx candidates with high pf-DSA mean fluorescence intensity (MFI) and those with low or no pf-DSA, not desensitized. Methods For all consecutive LTx recipients (January 2012-March 2018), freedom from CLAD and graft survival were assessed by Kaplan-Meier analysis and Cox proportional-hazards multivariate analysis. Results We compared outcomes for desensitized patients with high pf-DSA (n=39) and those with no (n=216) or low pf-DSAs (n=66). The desensitization protocol decreased the level of immunodominant pf-DSA (class I/II) at 1, 3, and 6 month post-LTx (p Conclusion The desensitization protocol in LTx recipients with high pf-DSAs was associated with satisfactory outcome, with cleared high pf-DSAs after desensitization identified as an independent predictor of graft survival.

Keywords: ltx; pre formed; lung; formed donor; donor specific; desensitization

Journal Title: Journal of Heart and Lung Transplantation
Year Published: 2021

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