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Ethical controversies in prenatal microarray.

Zornitza Stark1, Lynn Gillam, Susan P Walker

  • 1Victorian Clinical Genetics Service and Murdoch Children's Research Institute, Victoria, Australia.

Current Opinion in Obstetrics & Gynecology
|March 5, 2013
PubMed
Summary
This summary is machine-generated.

Chromosome microarray (CMA) analysis offers higher resolution prenatal genetic testing. Improved consent and counseling are advocated to maximize benefits and address ethical concerns for patients undergoing CMA.

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Area of Science:

  • Genetics
  • Reproductive Medicine
  • Bioethics

Background:

  • Chromosome microarray (CMA) provides higher resolution genetic analysis than karyotyping.
  • CMA is standard for postnatal testing but adoption in prenatal diagnosis is delayed due to ethical concerns.
  • Concerns include potential psychosocial harm and inadequate informed consent for prenatal CMA.

Purpose of the Study:

  • To review the benefits and harms of prenatal CMA.
  • To examine strategies for minimizing harm and addressing ethical issues.
  • To advocate for enhanced patient support in prenatal CMA.

Main Methods:

  • Review of large-scale trial findings on prenatal CMA.
  • Analysis of qualitative studies on patient experiences.
  • Critical examination of proposed harm-reduction strategies and ethical considerations.

Main Results:

  • Preliminary quantification of relative benefits and harms of prenatal CMA is now possible.
  • Qualitative data reveal patient experiences, especially with uncertain results.
  • Proposed strategies to minimize harm include limiting access, using targeted platforms, or restricting reporting.

Conclusions:

  • Prenatal CMA offers significant diagnostic advantages but presents ethical challenges.
  • Strategies to minimize harm must consider patient autonomy, justice, and equity.
  • Improved informed consent, counseling, and support are crucial for patients undergoing prenatal CMA.