Figure 34.2 A small shunt can be seen in the magnetic resonance images (arrows point) (a and b). AO, aorta; LV, left ventricle; RA, right atrium; RV, right ventricle.

The patient’s shunt is hemodynamically insignificant and is unlikely to cause symptoms or progress.

Discussion

There are various types of VSD; the infundibular ventriculoseptal-type occurs less frequently representing 5–7% of VSDs [1]. This type of septal defect is located under both semilunar valves, at the fibrous continuity between the pulmonary and aortic rings, with the infundibular septum either partially or completely missing.

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