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Posts Tagged ‘ostium secundum asd and ias aneurysm’

Inter atrial septal aneurysm is a benign disorder of IAS where the flap  of fossa ovalis bulges on either to right  or left atrium. It may be associated with fine fenestration or even a classical  ostium secundum  ASD.

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An unusual buckling motion of IAS aneurysm.

Though the pressure within the atria is one of the determinant of this  bulge.The morphology of the flap is such that it more often prolapse into LA than RA. Rarely it can be dynamic and  moves 180 degrees , buckling between RA and LA .This unusual  motion is real stress to IAS and can trigger atrial  ectopic beats. and atrial tachycardia .

Read  related article  IAS aneurysm 

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