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Related Experiment Videos

The large window ductus: a surgical trap

J Grünenfelder1, U Bartram, R Van Praagh

  • 1Department of Pathology, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

The Annals of Thoracic Surgery
|July 1, 1998
PubMed
Summary
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A rare, large window-type patent ductus arteriosus was nearly invisible due to its lack of length. Misidentification of the aortic isthmus as the ductus led to fatal clip occlusion.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Medical Diagnostics

Background:

  • Patent ductus arteriosus (PDA) is a common congenital heart defect.
  • Window-type PDA is an exceptionally rare variant.
  • Accurate anatomical identification is critical during surgical interventions.

Observation:

  • A large (15 mm) window-type PDA with minimal length was observed.
  • The intrapericardial aortic isthmus (4 mm diameter) was mistaken for the PDA.
  • Inadvertent clip occlusion of the aortic isthmus occurred.

Findings:

  • The unusual morphology of the window-type PDA rendered it externally invisible.
  • Misidentification of adjacent structures can lead to catastrophic surgical errors.
  • Prompt and accurate diagnosis is essential for appropriate management.

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Implications:

  • Highlights the importance of advanced imaging and surgical planning for rare cardiac anomalies.
  • Emphasizes the need for meticulous surgical technique to avoid misidentification.
  • Suggests transpulmonary patching on cardiopulmonary bypass as a treatment for large window-type PDA.