PMID- 24469294 OWN - NLM STAT- MEDLINE DCOM- 20141217 LR - 20140430 IS - 1538-943X (Electronic) IS - 1058-2916 (Linking) VI - 60 IP - 3 DP - 2014 May-Jun TI - Human leukocyte antigen sensitization in pediatric patients exposed to mechanical circulatory support. PG - 317-21 LID - 10.1097/MAT.0000000000000053 [doi] AB - Human leukocyte antigen (HLA) sensitization of pediatric heart recipients increases their risk of rejection and graft loss. As more children are placed on mechanical circulatory support (MCS) as a bridge to transplant, the risk factors for development of sensitization warrant further study. A single-center retrospective review of 36 children who received MCS identified 22 patients supported with either extracorporeal membrane oxygenation (ECMO) (n = 15) or ECMO-ventricular assist device (VAD) (n = 7) with paired (pre-MCS/post-MCS) panel reactive antibodies (PRA) or only negative post-MCS PRAs. Four patients (18%) became sensitized post-MCS (one ECMO-only patient, three ECMO-VAD patients). No difference was found between sensitized and nonsensitized patients in terms of congenital heart disease versus primary cardiomyopathy (p = 0.096), duration of MCS (38 days vs. 14 days, p = 0.233), or volume of blood product transfusions (358.6 ml/kg vs. 612.7 ml/kg, p = not significant). By multivariable analysis, the association of sensitization with older age at MCS (p = 0.076) and history of homograft (p = 0.064) approached significance. Pediatric patients supported with MCS are at low risk of developing HLA sensitization. Diagnosis, MCS duration, and volume of transfused blood products do not appear to be associated with HLA sensitization, but there is a suggestion of an association with older age at MCS and history of a homograft. FAU - Hong, Borah J AU - Hong BJ AD - From the *Division of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas; daggerPuget Sound Blood Center, Seattle, Washington; double daggerUniversity of Washington School of Medicine, Seattle, Washington; section signDivision of Pediatric Cardiothoracic Surgery, Seattle Children's Hospital, University of Washington, Seattle, Washington; and paragraph signDivision of Pediatric Cardiology, Seattle Children's Hospital, University of Washington, Seattle, Washington. FAU - Delaney, Meghan AU - Delaney M FAU - Guynes, Anthony AU - Guynes A FAU - Warner, Paul AU - Warner P FAU - McMullan, David M AU - McMullan DM FAU - Kemna, Mariska S AU - Kemna MS FAU - Boucek, Robert J AU - Boucek RJ FAU - Law, Yuk M AU - Law YM LA - eng PT - Journal Article PL - United States TA - ASAIO J JT - ASAIO journal (American Society for Artificial Internal Organs : 1992) JID - 9204109 RN - 0 (Antibodies) RN - 0 (HLA Antigens) SB - IM MH - Antibodies/chemistry MH - Blood Transfusion MH - Cardiomyopathies/therapy MH - Child MH - Child, Preschool MH - Extracorporeal Membrane Oxygenation/*methods MH - Female MH - HLA Antigens/*chemistry MH - Heart Defects, Congenital/therapy MH - Heart Failure/congenital/*therapy MH - Heart Transplantation/*methods MH - Heart-Assist Devices/adverse effects MH - Humans MH - Infant MH - Male MH - Multivariate Analysis MH - Retrospective Studies MH - Risk Factors EDAT- 2014/01/29 06:00 MHDA- 2014/12/18 06:00 CRDT- 2014/01/29 06:00 PHST- 2014/01/29 06:00 [entrez] PHST- 2014/01/29 06:00 [pubmed] PHST- 2014/12/18 06:00 [medline] AID - 10.1097/MAT.0000000000000053 [doi] PST - ppublish SO - ASAIO J. 2014 May-Jun;60(3):317-21. doi: 10.1097/MAT.0000000000000053.