Marcadores ecográficos de cromosomopatías en el I trimestre de la gestación: ductus venoso
Palabras clave:
Marcadores ecográficos, I trimestre, aneuploidia, ductus venosoResumen
La evaluación Doppler del flujo en el ductus venoso en el primer trimestre ha venido a contribuir con información clínica relevante en las orientaciones a los padres. No sólo se mostró eficaz en el rastreo de anomalías cromosómicas, como la trisomía 21, disminuyendo la tasa de procedimientos invasivos, sino también en el rastreo de cardiopatías congénitas, redefiniendo el grupo de alto riesgo a ser sometido a ecocardiografía precoz. Por su parte, un flujo anormal en el ductus venoso asociado a la translucencia nucal aumentada en uno o en ambos fetos de un embarazo monocoriónico parece una combinación sensible para rastrear precozmente el síndrome de transfusión feto fetal. En todas estas situaciones, el ductus venoso se muestra un marcador eficaz de insuficiencia/disfunción cardíaca.
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