Left Ventricular to Right and Left Atrial Shunts Post-Myxoma Resection: A Multimodality Imaging Perspective.

Area of Science:

• Cardiovascular Imaging
• Echocardiography
• Congenital Heart Disease

Background:

• Acquired Gerbode defects and left ventricular outflow tract (LVOT) shunts are rare cardiovascular conditions.
• Accurate diagnosis is crucial for appropriate management and patient outcomes.
• Advanced echocardiographic techniques are essential for visualizing complex intracardiac anatomy and flow patterns.

Observation:

• Two-dimensional transesophageal echocardiography (TEE) in various views (aortic valve short-axis, LVOT long-axis) was employed.
• Three-dimensional (3D) volume-rendered display provided comprehensive anatomical visualization.
• Color flow Doppler highlighted abnormal flow patterns associated with the defects.

Findings:

• The study successfully demonstrated an acquired Gerbode defect using TEE.
• LVOT-mitral anterior leaflet shunts were visualized, characterized by high-velocity turbulent flow.
• The combination of 2D and 3D TEE with color Doppler proved effective in delineating these complex defects.

Implications:

• Improved diagnostic capabilities for rare cardiac shunts.
• Enhanced understanding of the hemodynamic significance of Gerbode defects and LVOT shunts.
• Potential for earlier detection and intervention, leading to better patient prognoses.