title: Biventricular repair of right-dominant complete atrioventricular canal defect.
abstract: Complete atrioventricular (AV) canal defects usually have right and left valve components of approximately equal size, although unbalanced forms do occur. Optimal management of unbalanced AV canal defects is controversial, with no proven guidelines for choosing between biventricular repair and univentricular palliation. We describe successful biventricular repair of a right-dominant unbalanced AV canal with severe left AV valve stenosis. This case illustrates that severely unbalanced AV canal defects can be repaired successfully by tailoring the AV valve to distribute it equally between the ventricles, The increase in left ventricular volume after surgery exceeded prediction based on conformational change alone.
authors.affiliation: Department of Cardiovascular Surgery, Paediatric Cardiac Surgery Unit, University of Padova Medical School, Via Giustiniani, 2, 35128, Padova, Italy. vladimirovida@interfree.it
authors.forename: Vladimiro L
authors.initials: VL
authors.lastname: Vida
authors.forename: Stephen P
authors.initials: SP
authors.lastname: Sanders
authors.forename: Ornella
authors.initials: O
authors.lastname: Milanesi
authors.forename: Giovanni
authors.initials: G
authors.lastname: Stellin
mesh_terms: D001283:Atrioventricular Node / Q000002:abnormalities* / Q000601:surgery; D006348:Cardiac Surgical Procedures / Q000379:methods*; D004694:Endocardial Cushion Defects / Q000000981:diagnostic imaging / Q000601:surgery*; D006345:Heart Septal Defects, Ventricular / Q000601:surgery; D006351:Heart Valves / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn; D011651:Pulmonary Artery / Q000601:surgery; D014463:Ultrasonography