ABSTRACT
Mid esophageal 4 chamber view showing the mass in RA (red arrow) immediately after insertion of coronary sinus catheter. LA, Left atrium; LV, Left Ventricle; RA, Right atrium; RV, Right ventricle.
Subject(s)
Coronary Sinus , Echocardiography, Transesophageal , Catheters , Coronary Sinus/diagnostic imaging , Heart Atria/diagnostic imaging , Heart Ventricles , HumansABSTRACT
Ventricular septal defects (VSD) are the most common congenital cardiac defect. Patients with large VSDs present early due to an increase in the volume load on the left ventricle and pressure load on the right ventricle. Few of them present late even without surgical intervention, due to partial restriction of perimembranous (PM) VSD, either by the septal leaflet of the tricuspid valve or by aortic valve cusp prolapse into the VSD. The authors observed a novel structure (ie, subaortic membrane in this case) restricting the large PM VSD in a 15-year-old child.
