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Secundum septum

Patent foramen ovale (PFO) is a small opening that occurs between the two atria in fetuses septums to assist blood circulation. It typically closes shortly after birth and is often incorrectly classified as a form of ASD. The difference between PFOs and secundum ASDs is that PFO occurs as a result of failure of the septum primum and the secundum septum to fuse. Secundum defects on the other hand occur due to the failure of either the septum primum or secundum to overlap correctly. If the foramen ovale does not close, the result is a persistent hole which places an increased workload on the lungs and on the right side of the heart. ... [Pg.462]

See other pages where Secundum septum is mentioned: [Pg.461]    [Pg.692]    [Pg.539]    [Pg.461]    [Pg.692]    [Pg.539]    [Pg.600]    [Pg.577]    [Pg.577]   
See also in sourсe #XX -- [ Pg.539 ]



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