Double orifice of left AV valve in AVSD. IPCCC: 06.05.25

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International Society for Nomenclature of

Paediatric and Congenital Heart Disease

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IPCCC: 06.07.05, 05.04.02, 06.05.25
	AEPC Derived Term:	AVSD with ventricular imbalance: dominant right ventricle, hypoplastic left ventricle (06.07.05), Atrial septal defect (ASD) within oval fossa (secundum) (05.04.02), Double orifice of left AV valve in AVSD (06.05.25)

	EACTS-STS Derived Term:	AVC (AVSD), Complete (CAVSD), Unbalanced, Small LV (06.07.05, 06.06.09), ASD, Secundum (05.04.02), AVC (AVSD)-modifier, AVSD AV valvar leaflet abnormality, Double orifice of L AV valve in AVSD (06.05.25)

Definition: pending

Common Synonyms: pending

Modality: Anatomic specimen

Orientation: Right atrial view into ventricles

Description: The morphologically right atrium and right ventricle (RV) have been opened allowing for a clear view of the atrial and ventricular septum. The upper portion of the atrial septum is well formed with a secundum atrial septal defect (ASD). The superior caval vein (SCV) is in its usual position as is the coronary sinus (CS). There is a complete atrioventricular septal defect, the superior bridging leaflet (SBL) adherent to the crest of the ventricular septum. The inferior bridging leaflet (IBL) is free-floating with only a few cords attaching it to the right aspect of the crest of the septum. This atrioventricular septal defect is unbalanced, slightly smaller on the left. The left component of this common atrioventricular valve (AVV) has a double orifice. (Idriss Archive – Children’s Memorial Hospital, Chicago, IL)

Contributor: Diane Spicer, BS

Institution: Congenital Heart Institute of Florida

Image Label: A060705-61a

Image Certification: pending

AWG Rating: pending

AWG Page Certification: pending