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What is the definition of atrial septal defect?

ANSWER

Atrial septal defect is an abnormal hole located in the walls between the two atria. Tiny defects called patent foramen ovale are present in up to 30% of people and are of no consequence except in unusual circumstances. Moderate size to larger size defects should be corrected and may require heart surgery, though there are now devices that can close the hole without open heart surgery.

SOURCES:

American Heart Association: "Heart Failure."

Heart Failure Society of America.

Texas Heart Institute.

National Heart Lung and Blood Institute.

Reviewed by Suzanne R. Steinbaum on October 29, 2017

SOURCES:

American Heart Association: "Heart Failure."

Heart Failure Society of America.

Texas Heart Institute.

National Heart Lung and Blood Institute.

Reviewed by Suzanne R. Steinbaum on October 29, 2017

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What is the definition of atrioventricular node?

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