ABO-incompatible cardiac transplantation in pediatric patients with high isohemagglutinin titers

Claire A. Irving, Andrew R. Gennery, Vaughan Carter, Jonathan P. Wallis, Asif Hasan, Massimo Griselli, Richard Kirk

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Background ABO-incompatible (ABOi) cardiac transplantation is now used widely in infants with isohemagglutinin titers <1:4, but there is increasing evidence that ABOi transplantation can also be used in children with significantly higher titers. We reviewed our high-titer ABOi transplants and report our results here. Methods Patients who underwent ABOi cardiac transplantation from 2000 to 2013 with pre-existing isohemagglutinin titers of ≥1:16 were identified from departmental databases. Outcomes were reviewed using medical and laboratory records. Results Thirty patients underwent ABOi cardiac transplantation between 2000 and 2013. Twelve (40%) had pre-transplant isohemagglutinin titers of ≥1:16 and were included for further study. Median age was 14.9 (range 9.8 to 107.3) months and median weight was 9.6 (range 7.6 to 25) kg. Five (42%) were male. Pre-transplant diagnosis was cardiomyopathy in 8 of 12 (67%) and congenital heart disease in 4 of 12 (33%). Highest pre-transplant isohemagglutinin titer was 1:256 in 2 patients. Four patients (33%) had early antibody-mediated rejection (AMR), all within 15 days post-transplant. Management included use of rituximab, bortezomib, immunoadsorption and eculizumab. Three patients died but no deaths were associated with high isohemagglutinin titers. Conclusions ABOi cardiac transplantation in patients with isohemagglutinin titers ≥1:16 is possible. AMR may occur early and immunoadsorption has proven effective at decreasing antibody titers.

Original languageEnglish (US)
Article number5994
Pages (from-to)1095-1102
Number of pages8
JournalJournal of Heart and Lung Transplantation
Volume34
Issue number8
DOIs
StatePublished - Aug 2015

Keywords

  • ABO-incompatible
  • cardiac transplantation
  • high isohemagglutinin titers
  • pediatric

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine
  • Transplantation

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