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The hemi-Fontan operation.

Marshall L Jacobs1, Kamal K Pourmoghadam

  • 1Section of Cardiothoracic Surgery, St Christopher's Hospital for Children, Philadelphia, PA 19134, USA.

Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
|May 13, 2003
PubMed
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The hemi-Fontan operation reduces volume load on single ventricle hearts, preparing them for a modified Fontan procedure. This surgical approach involves connecting the superior vena cava to pulmonary arteries and other preparatory steps.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • Hearts with a functional single ventricle experience increased cavity volume and muscle mass due to excessive volume load from parallel circulations.
  • The hemi-Fontan operation is designed to mitigate this volume work in preparation for a complete Fontan procedure.

Purpose of the Study:

  • To describe the hemi-Fontan procedure as a preparatory surgical step for single ventricle physiology.
  • To outline the key components and potential concomitant procedures associated with the hemi-Fontan operation.

Main Methods:

  • Association of the superior vena cava (SVC) with branch pulmonary arteries.
  • Augmentation of central pulmonary arteries and occlusion of SVC inflow into the right atrium.

Related Experiment Videos

  • Elimination of alternative pulmonary blood flow sources.

    • Main Results:

    • The hemi-Fontan procedure effectively reduces volume work on the single ventricle.
    • It serves as a crucial preparatory stage for a subsequent modified Fontan procedure.

    Conclusions:

    • The hemi-Fontan operation is a valuable strategy for managing single ventricle physiology.
    • Concomitant procedures can be efficiently performed during the hemi-Fontan to address associated cardiac anomalies.