The defect is generally large and juxta-arterial, and a muscular rim along the postero-inferior margin of the VSD protects the conduction tissue. If a perimembranous VSD exists, this muscular rim ...

Reference Anderson, Spicer, McMahon, Kumar and Tretter1 The authors define the aorto-right ventricular communication as the area closed by the surgeon, not only in double-outlet right ventricle with ...