atrioventricular canal


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Related to atrioventricular canal: AVSD, common atrioventricular canal

atrioventricular canal

[¦ā·trē·ō‚ven′trik·yə·lər kə′nal]
(embryology)
The common passage between the atria and ventricles in the heart of the mammalian embryo before division of the organ into right and left sides.
References in periodicals archive ?
Of the structural cardiac abnormalities, 26% were complex cardiac defects, 26% were septal defects only, 19% were left or right hypoplastic heart, 15% were conotruncal abnormalities, 6% were defects of the atrioventricular canal, and 9% were classified as "other" defects.
Abnormal localization of the cardiac apex, a common atrioventricular canal, anomalous systemic venous return (eg, bilateral superior vena cava, interruption of the inferior vena cava with azygos continuation), atrial and ventricular malformations and septal defects, absent coronary sinus, malpo sition or transposition of the great arteries, pulmonic stenosis, pulmonary atresia, patent ductus arteriosus, and anomalous pulmonary venous connection have often been described.
Bradley has Down syndrome and underwent heart surgery at 6 months of age to correct an atrioventricular canal defect.
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