Perimembranous ventricular septal defect
Citation, DOI, disclosures and case data
40 year old primigravida sent for routine fetal anomaly scan.
Regular cardiac activity at 148 beats per minute.
There is a basal outlet interventricular septal defect demonstrated measuring 4 mm wide.
Color Doppler interrogation demonstrates overriding aorta.
Separate atrioventricular inlet was demonstrated.
Aortic arch and ductus arteriosus are normal in caliber and flow.
Perimembranous ventricular septal defect is a hole that occurs at the membranous portion of the interventricular septum which is located at the base of the heart between the muscular septum and aortic valves.
It is also referred to as paramembranous or membranous defect.