Screening ultrasonography in pregnancy
Journal of the Korean Medical Association
;
: 1003-1010, 2015.
Artículo
en Coreano
| WPRIM
| ID: wpr-221430
ABSTRACT
Ultrasonography in obstetrics is increasingly used for the screening of chromosomal abnormalities as well as for prenatal diagnosis of congenital abnormalities with safety and technological advancements. In the first trimester, it is important to confirm normal intrauterine pregnancy with viability, detect the abnormalities of uterus and adnexa, determine the number of fetuses and assess chorionicity and amnionicity in case of multiple pregnancy. After establishment of gestational age accurately by crown-rump length, thickened fetal nuchal translucency, absence of nasal bone, tricuspid regurgitation, reverse a wave of ductus venosus and cystic hygroma can be markers for screening of chromosomal abnormalities. In addition, the scan also offers an opportunity to detect gross structural abnormalities, which could help improve the prognosis by early prenatal intervention. In the second trimester, aneuploidy (trisomy 21, 18, 13, Turner syndrome) and genetic syndromes could be detected by major structural defects and soft markers. It is important to consider that many malformations may not be detected prenatally even by qualified practitioners and appropriate equipment, and to counsel patients about the potential for false-positive or false-negative results.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Embarazo Múltiple
/
Segundo Trimestre del Embarazo
/
Primer Trimestre del Embarazo
/
Diagnóstico Prenatal
/
Pronóstico
/
Anomalías Congénitas
/
Insuficiencia de la Válvula Tricúspide
/
Trisomía
/
Útero
/
Tamizaje Masivo
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
/
Estudio de tamizaje
Límite:
Femenino
/
Humanos
/
Embarazo
Idioma:
Coreano
Revista:
Journal of the Korean Medical Association
Año:
2015
Tipo del documento:
Artículo
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