Extensive left ventricular to coronary artery connections in hypoplastic left heart syndrome

David A Roberson1, Wei Cui, Bettina F Cuneo

  • 1The Heart Institute for Children, Hope Children's Hospital, Oak Lawn, Illinois 60453, USA. david@thic.com

Insights

This study details a rare fetal case of extensive left ventricular to coronary arterial connections in hypoplastic left heart syndrome. Echocardiography revealed unique coronary artery abnormalities and connections, offering new insights.

Area of Science:

  • Cardiology
  • Fetal Medicine
  • Medical Imaging

Background:

  • Hypoplastic left heart syndrome (HLH) is a complex congenital heart defect.
  • Left ventricular to coronary arterial connections (VCC) are rare anomalies.
  • Understanding VCC in HLH is crucial for diagnosis and management.

Observation:

  • Echocardiographic demonstration of extensive bilateral VCC in a fetus with HLH.
  • Detailed visualization of VCC supplying both right and left coronary arteries.
  • Identification of hypoplastic left main coronary artery and dilated LAD with VCC.

Findings:

  • The right coronary artery, via VCC, provided the sole antegrade flow to the ascending aorta.
  • The left anterior descending artery showed dilation and tortuosity with multiple VCC.
  • The left circumflex artery originated exclusively from its own VCC.

Implications:

  • This case represents the first echocardiographic documentation of HLH with extensive bilateral VCC and coronary anomalies.
  • Provides critical imaging insights into complex coronary artery development in HLH.
  • Enhances understanding of VCC pathophysiology and potential therapeutic targets in congenital heart disease.

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