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An infected pseudoaneurysm following a modified Blalock-Taussig shunt

Hironori Matsuhisa1, Naoki Yoshimura, Junichiro Kitahara

  • 1First Department of Surgery, University of Toyama, Sugitani, Toyama, Japan.

Interactive Cardiovascular and Thoracic Surgery
|August 14, 2008
PubMed

Insights

A rare complication following a modified Blalock-Taussig shunt in an infant with Tetralogy of Fallot led to a pseudoaneurysm. Surgical resection successfully treated this potentially fatal condition.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Infectious Disease

Background:

  • Tetralogy of Fallot (TOF) is a complex congenital heart defect requiring surgical palliation.
  • The modified Blalock-Taussig shunt is a common palliative procedure for infants with TOF.
  • Complications, though rare, can arise from shunt placement, impacting patient outcomes.

Observation:

  • A two-month-old infant with TOF developed a pseudoaneurysm at the shunt site five months post-surgery.
  • The patient experienced recurrent infections including otitis media, pneumonia, and fever of unknown origin.
  • Imaging confirmed a pseudoaneurysm of the subclavian artery at the expanded polytetrafluoroethylene graft insertion.

Findings:

  • Infected pseudoaneurysm and graft were identified as the source of recurrent infections.
  • Successful resection of the pseudoaneurysm and infected graft was achieved via median sternotomy.
  • Prompt antibiotic therapy preceded the surgical intervention.

Implications:

  • This case highlights a rare but serious complication of the modified Blalock-Taussig shunt.
  • Early diagnosis and aggressive management are crucial for favorable outcomes in such cases.
  • Understanding and addressing shunt-related pseudoaneurysms is vital for pediatric cardiac surgical practice.

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