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Chiari's network as a cause of fetal and neonatal pathology.


ABSTRACT: Chiari's network is a remnant of the eustachian valve located in the right atrium. Incomplete involution of the fetal sinus venosus valves results in "redundant" Chiari's network, which may compromise cardiovascular function. This report describes a case with the novel finding of prenatal compromise due to redundant Chiari's network and an uncommon case with significant postnatal symptoms. In both cases, the symptoms (fetal hydrops and postnatal cyanosis) resolved spontaneously. The variety of cardiovascular pathologies described in the literature is believed to be associated with persistence of a Chiari network. Knowledge about this not always harmless structure is important for perinatologists, pediatricians, and pediatric cardiologists alike. The clinical importance of this rare pathology is that prenatal counseling may anticipate a generally positive outcome and that surgical intervention generally should be avoided.

SUBMITTER: Bendadi F 

PROVIDER: S-EPMC3248639 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature

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Chiari's network as a cause of fetal and neonatal pathology.

Bendadi Fatiha F   van Tijn David A DA   Pistorius Lou L   Freund Matthias W MW  

Pediatric cardiology 20110910 1


Chiari's network is a remnant of the eustachian valve located in the right atrium. Incomplete involution of the fetal sinus venosus valves results in "redundant" Chiari's network, which may compromise cardiovascular function. This report describes a case with the novel finding of prenatal compromise due to redundant Chiari's network and an uncommon case with significant postnatal symptoms. In both cases, the symptoms (fetal hydrops and postnatal cyanosis) resolved spontaneously. The variety of c  ...[more]

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