Reverse ventricular remodeling and improved ventricular compliance after heart transplantation in infants and young children

Kanwal M. Farooqi, Leo Lopez, Robert H. Pass, Daphne T. Hsu, Jacqueline M. Lamour

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

After heart transplantation (HT) in infants and young children, environmental and intrinsic factors may lead to changes in the geometry and compliance of the donor heart. Serial demographic, clinical, hemodynamic, and echocardiographic data were obtained from HT recipients younger than 4 years of age. Echocardiographic chamber measurement z-scores were compared using recipient body surface area from the time of HT to 1 week, 3 months, and last follow-up visit. Left ventricular end-diastolic volume (LVEDV) z-scores were correlated with pulmonary capillary wedge pressure (PCWP) at each time point. Heart transplantation was performed for 13 children between March 2009 and December 2012, 9 of whom (69 %) were boys. The median age at HT was 8 months (range, 4-43 months), and the mean follow-up period was 13 ± 7 months. Left ventricular end-diastolic dimension z-scores decreased significantly (p = 0.03) between HT and 1 week, then increased from 1 week to 3 and 12 months. (-1.32 ± 1.7, -0.71 ± 1.8, 0.41 ± 2.1, 0.79 ± 2.3, respectively). A positive relationship (R 2 = 0.48) between the LVEDV z-score and PCPW was present at the last follow-up visit. For infants and young children, the allograft demonstrates appropriate growth by 1 year after HT. Left ventricular compliance improves over time.

Original languageEnglish (US)
Pages (from-to)922-927
Number of pages6
JournalPediatric Cardiology
Volume35
Issue number6
DOIs
StatePublished - Aug 2014

Keywords

  • Cardiac transplant growth
  • Cardiac transplant ventricular compliance
  • Pediatric heart transplantation

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Reverse ventricular remodeling and improved ventricular compliance after heart transplantation in infants and young children'. Together they form a unique fingerprint.

  • Cite this