Key result
11 cases demonstrate rare congenital pseudoaneurysms of the mitral-aortic intervalvular fibrosa can be monitored prenatally.
Why the study?
Pseudoaneurysm of the MAIVF is rare, typically reported post-surgery or endocarditis, with few reports on congenital cases.
Case Report (n=11)
Congenital pseudoaneurysm of the MAIVF is a rare condition that can be successfully identified and monitored prenatally using ultrasound.
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Supports prenatal monitoring of rare congenital MAIVF pseudoaneurysm; hypothesis-generating and requires larger prospective validation.
The mitral-aortic intervalvular fibrosa (MAIVF) is an avascular, fibrous structure that provides continuity between the anterior leaflet of the mitral valve and the aortic valve. Pseudoaneurysm of the MAIVF is rare and has been most commonly described in adults and, more rarely, in children following cardiac surgery or endocarditis. Few reports have been published on cases with congenital pseudoaneurysm of the MAIVF. Here, we describe five cases of congenital pseudoaneurysm of the MAIVF identified prenatally and an additional six cases diagnosed postnatally. This is an unusual finding of varying clinical significance, which can be isolated or associated with complex congenital heart disease but, importantly, can be identified and monitored in the fetus.
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Hogan et al. (2021) conducted a case report in Congenital pseudoaneurysm of the mitral-aortic intervalvular fibrosa (n=11). Prenatal and postnatal evaluation identified 11 cases of congenital pseudoaneurysm of the mitral-aortic intervalvular fibrosa, demonstrating that this rare anomaly can be monitored in the fetus.
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