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From Glenn to Fontan. A continuing evolution.

A R Castaneda1

  • 1Department of Surgery, Harvard Medical School, Boston, MA.

Circulation
|November 1, 1992
PubMed
Summary
This summary is machine-generated.

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The Fontan operation, a surgical procedure for complex congenital heart disease, has evolved significantly. Modifications have dramatically reduced surgical mortality and complications like pleural effusions, improving patient outcomes.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • Historical understanding of circulation evolved from Aristotle and Galen to Colombo and Harvey.
  • The right ventricle's indispensability was challenged in the 20th century, leading to novel surgical approaches.
  • Rodbard's 1948 experiment bypassing the canine right ventricle paved the way for the Glenn and Fontan operations.

Observation:

  • Clinical experience at Boston's Children's Hospital involved modifications like direct atrial-to-pulmonary artery connection, cavocaval baffle, bidirectional cavopulmonary artery anastomosis, and fenestrated Fontan.
  • Surgical mortality decreased from 20% to 4% between the original Fontan operation and 1990-1991, even in complex cases.
  • Prolonged pleural effusions decreased from 40% to under 5% with bidirectional cavopulmonary artery anastomosis and 11% with the fenestrated Fontan approach.

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Findings:

  • Modifications to the Fontan operation have substantially improved surgical outcomes.
  • Bidirectional cavopulmonary artery anastomosis and fenestrated Fontan approaches show reduced rates of prolonged pleural effusions.
  • Overall surgical mortality has been significantly reduced in patients undergoing these modified procedures.

Implications:

  • Further refinement in patient selection and surgical modifications can lead to even better early and long-term results.
  • These advancements represent significant progress in managing complex congenital heart conditions.
  • The evolution of the Fontan procedure highlights the impact of innovative surgical techniques in pediatric cardiac care.