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Related Experiment Videos

Amniocentesis before 15 weeks' gestation: technical aspects and obstetric risks

O Rousseau1, P Boulot, G Lefort

  • 1Department of Obstetrics and Gynecology, Hopital Arnaud de Villeneuve 371, Monpellier, France.

European Journal of Obstetrics, Gynecology, and Reproductive Biology
|February 1, 1995
PubMed
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Early amniocentesis (EAC) is a feasible alternative to chorionic villus sampling, offering similar pregnancy outcomes to standard amniocentesis (SAC). EAC can be performed earlier in gestation for usual indications, with faster genetic results expected soon.

Area of Science:

  • Perinatology
  • Prenatal Diagnosis
  • Medical Genetics

Background:

  • Amniocentesis is a common prenatal diagnostic procedure.
  • Chorionic villus sampling (CVS) is an alternative for early genetic testing.
  • Earlier amniocentesis could offer advantages in specific clinical scenarios.

Purpose of the Study:

  • To compare the safety and efficacy of early amniocentesis (EAC) with standard amniocentesis (SAC).
  • To evaluate EAC as a potential alternative to CVS for prenatal genetic diagnosis.

Main Methods:

  • Prospective case-control study comparing EAC (11-14 weeks gestation) with SAC (15-24 weeks gestation).
  • Review of medical records for 484 cases, analyzing indications, success rates, fluid characteristics, and obstetric outcomes.

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  • Comparison of culture failure rates and therapeutic abortion rates between the two groups.

    • Main Results:

    • No significant differences in procedural success rates, culture success, or pregnancy outcomes between EAC and SAC.
    • Smaller amniotic fluid sample volumes were obtained in the EAC group (P < 0.001).
    • Therapeutic abortions were performed significantly earlier in the EAC group (P < 0.02).

    Conclusions:

    • Early amniocentesis (EAC) is a feasible procedure from 11 weeks gestation.
    • EAC can be used for standard indications, serving as an alternative to chorionic villus sampling.
    • Advancements in cytogenetic techniques will soon allow for rapid genetic results from amniocentesis within a week.