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Infectious, malignant, and autoimmune complications in pediatric heart transplant recipients

Agnieszka Kulikowska1, Sarah E Boslaugh, Charles B Huddleston

  • 1Department of Pediatrics, Washington University, St. Louis, MO 63110, USA. kulikowska_a@kids.wustl.edu

The Journal of Pediatrics
|April 16, 2008
PubMed

Insights

Pediatric heart transplant survivors, especially infants, face higher risks of severe infections and autoimmune disorders long after transplantation. These conditions require careful long-term monitoring and management.

Area of Science:

  • Pediatric Cardiology
  • Transplant Immunology
  • Infectious Diseases

Background:

  • Long-term survival after pediatric heart transplantation has improved.
  • Understanding post-transplant morbidities beyond the initial perioperative period is crucial.
  • Infants represent a unique population with distinct physiological and immunological profiles.

Purpose of the Study:

  • To investigate the long-term clinical course of pediatric heart transplant recipients.
  • To compare the incidence of infections, lymphoproliferative disorders, and autoimmune diseases in infant versus older recipients.
  • To identify potential long-term complications in pediatric heart transplant survivors.

Main Methods:

  • Retrospective review of 71 pediatric heart transplant recipients.
  • Stratification into two groups: infant recipients (<1 year) and older recipients (>1 year).
  • Analysis of infection and disease occurrence rates over 10 years of follow-up using Poisson regression.

Main Results:

  • Infant recipients exhibited significantly higher rates of severe and chronic infections compared to older recipients.
  • Infections in infant recipients were more severe and treatment-resistant, though opportunistic infections were rare.
  • Autoimmune disorders, particularly autoimmune cytopenias, were observed in 18% of infant recipients, a previously unrecognized morbidity.

Conclusions:

  • Infant heart transplant recipients experience a greater burden of infections long-term compared to older recipients.
  • Autoimmune disorders represent a significant and previously underappreciated complication in pediatric heart transplantation.
  • Long-term surveillance for infections and autoimmune diseases is essential for pediatric heart transplant survivors.
Abstract

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