- Poster presentation
- Open Access
The right ventricle shows distinct wall motion characteristics in L-TGA vs. D-TGA/atrial switch
© Savacool et al; licensee BioMed Central Ltd. 2009
- Published: 28 January 2009
- Wall Motion
- Right Ventricle
- Atrial Switch
- Develop Heart Failure
- Right Ventricle Function
Patients whose right ventricles (RV) support the systemic load may develop heart failure. However it is unknown whether the RV remodels similarly in different etiologies of systemic RV.
RV wall motion and shape were measured from 3D reconstructions generated from magnetic resonance images in 25 patients with transposition of the great arteries after atrial switch (D-TGA), 17 patients with L-TGA and 9 normal subjects. Wall motion was measured in 11 regions of the RV free wall and septum and normalized by dividing by the square root of body surface area. Regional RV Shape was measured as eccentricity (range from 0 for a line to 1 for a circle) in 20 short-axis slices of the RV.
Systemic RVs are dilated, spherical, and poorly functioning. L-TGA and D-TGA systemic RVs have distinctive wall motion and remodeling patterns. The functional and morphological response to systemic pressure in the RV may differ depending on the anomaly.
This article is published under license to BioMed Central Ltd.