Utility of 3-Dimensional Echocardiography in Patients With Complex Intracardiac Connections and Ventricular Septal...

Area of Science:

• Cardiology
• Medical Imaging
• Congenital Heart Disease Surgery

Background:

• Surgical management of complex intracardiac connections, ventricular septal defects (VSD), and two adequately sized ventricles presents significant challenges.
• Accurate understanding of VSD anatomy and its spatial relationship with outflow tracts is crucial for determining biventricular repair suitability.
• Transthoracic 2-dimensional echocardiography (2D-echo) is the standard imaging modality for congenital heart disease.

Observation:

• Transthoracic 3-dimensional echocardiography (3D-echo) offers additive value beyond 2D-echo in defining baffle pathways from VSD to semilunar valves.
• 3D-echo aids in characterizing VSD anatomy and identifying potential factors for post-repair systemic outflow tract obstruction.
• Four case studies demonstrate the critical role of transthoracic 3D-echo in delineating intracardiac connections and VSD anatomy for surgical planning.

Findings:

• 3D-echo provides superior visualization of complex intracardiac anatomy compared to 2D-echo.
• The study details a specific transthoracic 3D-echo protocol for evaluating complex heart defects.
• 3D-echo facilitated precise surgical planning in all four presented cases.

Implications:

• Transthoracic 3D-echo is a valuable tool for improving surgical planning and outcomes in complex VSD cases.
• This advanced imaging modality can enhance the definition of surgical pathways and reduce the risk of postoperative complications.
• The described 3D-echo protocol can be adopted for standardized evaluation of similar complex congenital heart conditions.