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  2. Atrial septal defect

Atrial septal defect

Definition:

Atrial septal defect is an abnormal hole in the interatrial septum between right and left atria. Atrial septal defect is one of the most frequent types of malformations in congenital heart defect that arise from perturbations of cardiac development during embryogenesis. Multiple transcriptions factors that regulate cardiac development as well as various chemicals and maternal diseases have been implicated in the disease.

References:

Biomedical Dictionary

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