Atrioventricular canal defect

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Atrioventricular canal defect

Illustration showing atrioventricular canal defect

Atrioventricular canal defect includes a hole in the wall between the heart's chambers and flaws in the heart's valves. This defect is classified by whether it's partial, involving only the upper two chambers, or complete, in which blood can travel freely among all four chambers.

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