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Successful staged Fontan completion for truncus arteriosus with hypoplastic left ventricle
Takaya Hoashi1, Edward L Bove, Richard G Ohye
1Division of Pediatric Cardiovascular Surgery, Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan, USA.
The Annals of Thoracic Surgery
|January 28, 2010
Summary
This case study details a successful multi-stage surgical palliation for truncus arteriosus type II in an infant. The patient remains well eight years post-Fontan procedure, demonstrating long-term viability of the surgical approach.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
- Surgical Palliation
Background:
- Truncus arteriosus type II is a complex cyanotic congenital heart defect.
- It presents with a single great artery arising from the ventricles, supplying both pulmonary and systemic circulations.
- Associated anomalies include ventricular septal defects and hypoplastic ventricles, complicating surgical management.
Observation:
- A neonate diagnosed with truncus arteriosus type II, large outlet ventricular septal defect, and hypoplastic left ventricle underwent staged surgical palliation.
- The surgical strategy involved initial palliation at 1 month, bidirectional Glenn at 6 months, and extracardiac Fontan completion at 3 years.
- Follow-up at 8 years demonstrated a patent Fontan pathway with mild-to-moderate truncal valve insufficiency.
Findings:
- Multi-stage surgical palliation, including modified Blalock-Taussig shunt, bidirectional Glenn, and extracardiac Fontan, is effective for truncus arteriosus type II.
- Successful long-term outcomes are achievable with careful surgical planning and execution.
- The patient exhibited stable hemodynamics with manageable truncal valve insufficiency post-Fontan.
Implications:
- This case highlights the feasibility and long-term success of staged palliation for complex truncus arteriosus type II.
- It provides valuable insights for surgical decision-making in similar pediatric cardiac cases.
- Further research into optimizing truncal valve management and long-term follow-up is warranted.
