Implantation of total artificial heart in congenital heart disease

Iki Adachi1, David S L Morales2

  • 1Congenital Heart Surgery, Texas Children's Hospital; Michael E. DeBakey Department of Surgery, Baylor College of Medicine.

Insights

A total artificial heart (TAH) is a feasible option for patients with end-stage heart failure (HF) and complex congenital heart disease (CHD). Technical modifications enable TAH implantation, successfully bridging patients to heart transplantation.

Area of Science:

  • Cardiology
  • Congenital Heart Surgery
  • Mechanical Circulatory Support

Background:

  • End-stage heart failure (HF) often necessitates advanced interventions.
  • Congenital heart disease (CHD) presents unique challenges for cardiac device implantation.
  • Total artificial hearts (TAH) serve as a bridge to cardiac transplantation.

Observation:

  • A 17-year-old patient with congenital transposition of the great arteries (CCTGA) experienced progressive HF and multisystem organ failure.
  • The patient's complex cardiac anatomy posed significant challenges for TAH implantation.
  • An implantable cardioverter defibrillator (ICD) was previously implanted but did not prevent deterioration.

Findings:

  • A TAH was successfully implanted in the patient with CCTGA after necessary technical modifications.
  • The TAH provided mechanical circulatory support, allowing the patient to recover and await a donor heart.
  • The patient was successfully bridged to heart transplantation 5 months post-TAH implantation.

Implications:

  • TAH implantation is technically feasible in select patients with structurally abnormal hearts due to CHD.
  • This case demonstrates the potential of TAH as a viable bridge to transplant in complex congenital cases.
  • Customized surgical approaches may be required for TAH implantation in patients with complex congenital heart defects.

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