
Atrial Septal Defects
Atrial Septal Defects (ASDs) are a type of congenital heart defect that occur when there is a hole in the wall (septum) that separates the two upper chambers (atria) of the heart. This hole allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood from the right atrium, which can cause the heart to work harder than normal. In maritime context, ASDs can be a concern for divers and submariners, as the increased pressure underwater can exacerbate the effects of the defect. It is important for individuals with ASDs to receive proper medical evaluation and clearance before participating in any maritime activities.
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