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Restrictive atrial septum after the Fontan procedure

Gemma Penford1, Daniel Quandt1, Oliver Stumper1

  • 1The Heart Unit,Birmingham Children's Hospital,Birmingham,United Kingdom.

Cardiology in the Young
|July 16, 2015
PubMed

Insights

Restrictive atrial septum after Fontan surgery can cause serious complications. Relieving this obstruction through interventions like stenting can significantly improve patient outcomes and reduce venous pressure.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • The Fontan procedure is a palliative surgery for complex congenital heart defects, aiming to redirect venous blood to the pulmonary arteries.
  • Postoperative complications following Fontan surgery can significantly impact long-term outcomes.
  • Restrictive atrial septum is a potential, though less common, complication that can impede cardiac function.

Observation:

  • Three patients with early or late Fontan complications were found to have restriction of the native atrial septum.
  • This restriction led to significant obstruction of pulmonary venous return and elevated systemic venous pressure.
  • Dobutamine stress testing was utilized in one case to diagnose the atrial septum restriction.

Findings:

  • Transcatheter stenting was successfully performed in two of the three patients to relieve the atrial septum obstruction.
  • Following the intervention, all patients experienced improvement in their condition.
  • Relief of the obstruction normalized pulmonary venous return and reduced systemic venous pressure.

Implications:

  • Early identification and intervention for restrictive atrial septum are crucial for managing Fontan post-operative complications.
  • Transcatheter stenting offers a viable treatment option for this specific complication.
  • Addressing atrial septum restriction can lead to improved hemodynamics and better long-term prognosis for Fontan patients.

Keywords:
Fontan procedurehypoplastic left heart syndromeprotein-losing enteropathystent

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