Procedure used in prenatal diagnosis to obtain amniotic fluid which can be used for genetic and other diagnostic tests. Informally called
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Transabdominal aspiration of fluid from the amniotic sac. [amnio- + G. kentesis, puncture]

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am·nio·cen·te·sis .am-nē-ō-(.)sen-'tē-səs n, pl -te·ses -.sēz the surgical insertion of a hollow needle through the abdominal wall and into the uterus of a pregnant female to obtain amniotic fluid esp. to examine the fetal chromosomes for an abnormality and for the determination of sex

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withdrawal of a sample of the fluid (amniotic fluid) surrounding an embryo in the uterus by piercing the amniotic sac through the abdominal wall. As the amniotic fluid contains cells from the embryo (mostly shed from the skin), cell cultures enable chromosome patterns to be studied so that prenatal diagnosis of chromosomal abnormalities (such as Down's syndrome) can be made. Metabolic errors and other diseases, such as spina bifida, can also be diagnosed prenatally from the biochemistry of the cells or that of the fluid (see alpha-fetoprotein). Although the risks of amniocentesis, in skilled hands, are extremely low, there is no point in undertaking it unless the parents agree to a termination of the pregnancy if a serious abnormality is discovered.

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am·nio·cen·te·sis (am″ne-o-sen-teґsis) percutaneous transabdominal puncture of the uterus to obtain amniotic fluid.


Medical dictionary. 2011.

Look at other dictionaries:

  • Amniocentesis — Saltar a navegación, búsqueda La amniocentesis es una prueba prenatal común en la cual se extrae una pequeña muestra del líquido amniótico que rodea al feto para analizarla. Contenido 1 Características 2 Amniocentesis y Células madre …   Wikipedia Español

  • Amniocentesis — (also referred to as amniotic fluid test or AFT), is a medical procedure used in prenatal diagnosis of genetic abnormalities and fetal infections cite web|url= tests/amniosentesis.htm|title=Diagnostic Tests …   Wikipedia

  • amniocentesis — f. mét. explor. Técnica que permite revelar la existencia de ciertas anomalías cromosómicas o enzimáticas de un feto a partir de la obtención de líquido amniótico a través de una punción transabdominal. Para ello se utiliza una aguja larga y… …   Diccionario médico

  • Amniocentesis — f. Med. Extracción de líquido amniótico para su examen. * * * La amniocentesis es una prueba prenatal común en la cual se extrae una pequeña muestra del líquido amniótico que rodea al feto para analizarla. La amniocentesis se utiliza con… …   Enciclopedia Universal

  • amniocentesis — amniocentesis. См. амниоцентез. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • amniocentesis — (n.) 1958, Modern Latin, from amnion (see AMNIOTIC (Cf. amniotic)) + centesis surgical puncture, from Gk. kentesis a pricking, from kentein to prick, related to kontos pole (see CENTER (Cf. center)) …   Etymology dictionary

  • amniocentesis — [am΄nē ō΄sen tē′sis] n. [ModL < AMNION + Gr kentēsis, a pricking] the surgical procedure of inserting a hollow needle through the abdominal wall into the uterus of a pregnant woman and extracting amniotic fluid, which may be analyzed to… …   English World dictionary

  • amniocentesis — {{#}}{{LM A02130}}{{〓}} {{[}}amniocentesis{{]}} ‹am·nio·cen·te·sis› {{◆}}(pl. amniocentesis){{◇}} {{《}}▍ s.f.{{》}} Análisis que se hace del líquido amniótico para diagnosticar el estado del feto: • El médico recomendó a la embarazada hacerse una… …   Diccionario de uso del español actual con sinónimos y antónimos

  • amniocentesis — /am nee oh sen tee sis/, n., pl. amniocenteses / seez/. a surgical procedure for obtaining a sample of amniotic fluid from the amniotic sac in the uterus of a pregnant woman by inserting a hollow needle through the abdominal wall, used in… …   Universalium

  • amniocentesis — UK [ˌæmnɪəʊsenˈtiːsɪs] / US [ˌæmnɪoʊsenˈtɪsɪs] noun [countable/uncountable] Word forms amniocentesis : singular amniocentesis plural amniocenteses medical a test carried out on liquid taken from a pregnant woman s womb in order to find out if the …   English dictionary

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