A Novel Method of Chest Wall Reconstruction Succeeding Pediatric Heart Transplantation Donor-recipient Size Mismatch:

Malcolm Lesavoy1, Jade March2, Ian Roy1

  • 1From the Department of Plastic Surgery, University of California, Los Angeles, Los Angeles, CA.

Insights

Pediatric heart transplantation in infants can face size mismatch challenges. A modified thoracoplasty helped close the chest wall after a large donor heart transplant in a 23-month-old, ensuring long-term patient vitality.

Area of Science:

  • Pediatric cardiac surgery
  • Thoracic surgery
  • Transplantation medicine

Background:

  • Pediatric heart transplantation is complex, often complicated by donor-recipient size discrepancies.
  • Infants undergoing heart transplantation may require surgical modifications for chest wall closure.
  • Nonischemic dilated cardiomyopathy is a significant indication for pediatric heart transplantation.

Observation:

  • A 23-month-old infant received an orthotopic heart transplant for nonischemic dilated cardiomyopathy.
  • The donor heart was notably larger than the infant recipient's thoracic cavity.
  • A modified thoracoplasty was performed to facilitate chest wall closure post-transplant.

Findings:

  • The modified thoracoplasty successfully addressed the size mismatch, enabling chest closure.
  • This surgical intervention allowed for the successful transplantation of a larger-than-ideal donor heart.
  • The report details surgical techniques applicable to similar pediatric cases.

Implications:

  • This case highlights the feasibility of managing significant donor-recipient size discrepancies in pediatric heart transplantation.
  • Modified thoracoplasty offers a viable solution for chest wall closure in infant heart recipients with large grafts.
  • Long-term follow-up of 25 years provides valuable insights into the outcomes of such complex pediatric cardiac procedures.

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