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Table 1 Anatomic classification of CAVC [4]

From: Complete atrioventricular canal

Type A

the superior bridging leaflet is almost completely adherent to the left ventricle and is firmly attached on the ventricular septum by multiple chordal insertions

Type B

the superior bridging leaflet is attached over the ventricular septum by an anomalous papillary muscle of the right ventricle

Type C

the superior bridging leaflet is not attached to the ventricular septum (free-floating leaflet)

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Orphanet Journal of Rare Diseases

ISSN: 1750-1172