Article information
Resumen
Objetivo
Presentar las posibilidades diagnósticas de una ecografía practicada a la población general de gestantes alrededor de la semana 12. Presentar la técnica de su realización.
Material y métodosEstudio de los artículos relevantes aparecidos entre 1985 y 2001, obtenidos del Medline o citados en otros artículos.
ResultadosLa aportación más valiosa de esta ecografía es el cribado del síndrome de Down y la definición de la corionicidad en la gestación múltiple, pero también establecer la edad gestacional con precisión e identificar muchas malformaciones.
ConclusionesLa ecografía de la semana 12 debe convertirse en una exploración habitual para todas las gestantes. Sus objetivos y características hacen necesario el consentimiento informado y la evaluación continuada de su eficacia diagnóstica.
Palabras clave:
Translucencia nucal
Cribado ecográfico
Síndrome de Down
Malformacion fetal
Edad gestacional
Corionicidad
Summary
Objective
To show the diagnostic possibilities coming from a sonography performed around 12th week on the general population of pregnancies.
Material and methodsArticles published since 1985 to 2001, retrieved from Medline or cited in other articles.
ResultsThe most important value is Down's screening and the diagnosis of chorionicity in twin pregnancies, but it is also useful for estimating gestational age and to identify many fetal malformations.
ConclusionsSonography at 12 weeks (11-13 weeks) is coming to be essential in the conduction of all pregnancies. It is necessary to use informed consent and to keep a continuous audit.
Keywords:
Nuchal translucency
Sonographic screening
Down's syndrome
Fetal malformation
Gestational age
Chorionicity
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