Secundum atrial septal defect

Case contributed by Dr Katia Kaplan-List


39 year old female referred with the indication of a "hole in the heart".

Patient Data

Age: 39
Gender: Female

There is a small jet extending across the inter-atrial septum on series 17 images 168-175 from the left to the right atrium consistent with ostium secundum atrial septal defect.

Case Discussion

Secundum atrial septal defect (ASD), located in the central part of the atrial septum within the floor of the fossa ovalis, is the most common type of ASD. It is a shunt between the systemic and pulmonary circulations. Patients with an isolated ASD often remain asymptomatic early in life. If untreated, it results in exercise intolerance, arrhythmias, right ventricular dysfunction, pulmonary arterial hypertension (PAH) and reduced life expectancy. Secundum defects can occur in isolation or as part of a syndrome. ASD closure is indicated except in patients with severe and irreversible pulmonary arterial hypertension. 

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Case information

rID: 42823
Published: 9th Feb 2016
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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