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. 1988 Nov;60(5):446–451. doi: 10.1136/hrt.60.5.446

Transient neonatal tricuspid regurgitation: a Doppler echocardiographic study of three cases.

M Gewillig 1, M Dumoulin 1, L G Van der Hauwaert 1
PMCID: PMC1216604  PMID: 2974298

Abstract

Three patients with normal hearts and no pulmonary abnormality had neonatal tricuspid regurgitation causing cardiorespiratory distress and cyanosis. The signs of tricuspid regurgitation resolved over a few weeks. In the acute phase echocardiography showed gross dilatation of the right atrium and ventricle. The interatrial septum bulged into the left atrium during the whole cardiac cycle. Doppler echocardiography showed clinically significant tricuspid regurgitation, a right to left shunt through the foramen ovale, reduced flow through the pulmonary valve, and in two patients ductal flow into the pulmonary artery. In one patient tricuspid regurgitation was so great that it impeded the opening of the pulmonary valve and produced functional "atresia" of the pulmonary valve. The presence of regurgitant blood flow through the pulmonary valve showed that the "atresia" was functional rather than organic. Doppler echocardiographic study is useful in distinguishing functional neonatal tricuspid regurgitation from structural abnormality of the tricuspid valve.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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