Prenatal diagnosis of left isomerism with normal heart

Costa, Sara; Carriço, Ana; Valente, Francisco

doi:10.1136/bcr-2017-223097

Cited by 1 publication

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“…[13] Suprahepatic part of the IVC opens at the bottom of the right atrium via a separate opening [Figure 2] and its inferior part remain malpositioned to the left of the spine [Figure 4]. Interruption of the IVC with azygous continuation can be detected prenatally as a “double vessel” sign[14] [Figure 1]. The sign demonstrates the azygous vein posterior to the descending aorta with the flow of blood in the opposite direction [Figure 4].…”

Section: Discussionmentioning

confidence: 99%

Left atrial isomerism associated with aneurysmal enlargement of right atrial appendage: A case report with literature review

Agarwal

Agarwal²

2019

Indian Journal of Radiology and Imaging

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We present a prenatally diagnosed case of heterotaxy syndrome (HS) in which left atrial isomerism (LAI) was associated with an aneurysmal enlargement of the right atrial appendage (RAA). Although LAI is usually associated with complex cardiac and extracardiac anomalies, the association of LAI and right atrial appendage aneurysm (RAAA) is exceptional. Congenital RAAA itself is an idiopathic, very rare cardiac anomaly characterized by the enlargement of the appendage in the absence of any other cardiac or extra-cardiac defect. The prognosis of the heterotaxy is poor with associated major cardiac malformations and even cases with minor cardiac anomalies are at risk postnatally for complications like biliary atresia, intestinal rotational abnormalities, and immune disorders. In this case, the prenatal diagnosis of the isomerism was mainly based on the abnormalities of caval veins. Although no typical complex cardiac anomaly was present, the HS was associated with biliary atresia, polysplenia, and malrotation of the gut. Associated RAAA further imposed an additional risk of complications such as tachyarrhythmias, thromboembolic events, and aneurysmal rupture.

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Section: Discussionmentioning

confidence: 99%