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Related Experiment Videos

Prenatal screening: invasive diagnostic approaches.

Claude d'Ercole1, Raha Shojai, Raoul Desbriere

  • 1Service de Gynecologie Obstétrique, Hôpital Nord, Chemin des Borrellys, 13015 Marseille, France. Claude.D'ercole@mail.ap-hm.fr

Child'S Nervous System : Chns : Official Journal of the International Society for Pediatric Neurosurgery
|August 9, 2003
PubMed
Summary

Fetal invasive procedures like amniocentesis, CVS, and FBS offer valuable fetal samples for diagnosing central nervous system (CNS) anomalies and genetic conditions. Counseling on risks like miscarriage is crucial before these diagnostic tests.

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Area of Science:

  • Perinatology
  • Medical Genetics
  • Fetal Medicine

Background:

  • Fetal invasive procedures are essential for diagnosing central nervous system (CNS) anomalies when imaging reveals abnormalities or high-risk factors.
  • These procedures provide crucial ovular samples for diagnosis, etiology determination, and prognosis assessment.

Purpose of the Study:

  • To outline the indications, methods, and implications of fetal invasive procedures.
  • To inform healthcare providers and expectant parents about the benefits and risks associated with fetal sample collection.

Main Methods:

  • Amniocentesis, fetal blood sampling (FBS), and chorionic villous sampling (CVS) are key invasive techniques.
  • These methods yield fetal DNA, enable biochemical analysis, and allow for the identification of infectious agents.

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Main Results:

  • The primary complications associated with these procedures include miscarriage and premature delivery.
  • Informed parental counseling regarding the risks and benefits is a mandatory aspect of these interventions.

Conclusions:

  • Amniocentesis (from 15 weeks), CVS (from 11 weeks), and FBS (after 18-20 weeks) are utilized for various analyses.
  • Indications encompass DNA/cytogenetic analysis, neural tube defect diagnosis, infectious agent detection (TORCH infections), and hemorrhage etiology.