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Fetal surgery for spina bifida aperta.

Luc Joyeux1,2, Enrico Danzer3,4, Alan W Flake3,4

  • 1Academic Department Development and Regeneration, Cluster Woman and Child, Biomedical Sciences, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium.

Archives of Disease in Childhood. Fetal and Neonatal Edition
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PubMed
Summary

Prenatal surgery for spina bifida aperta (SBA) can reverse neurological damage and improve motor function. While effective, it carries maternal and fetal risks requiring careful consideration.

Keywords:
fetal surgeryfetoscopymyelomeningoceleopen fetal surgeryspina bifida aperta

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Pediatric Surgery

Background:

  • Spina bifida aperta (SBA) is a common congenital malformation causing lifelong disabilities.
  • Neurological deficits in SBA result from both neurulation defects and secondary damage from intrauterine exposure and cerebrospinal fluid leakage.
  • This secondary damage leads to hindbrain displacement, a process reversible by prenatal intervention.

Purpose of the Study:

  • To provide clinicians with essential information for counseling parents regarding fetal surgery for SBA.
  • To review current clinical outcomes of prenatal SBA repair.
  • To discuss emerging minimally invasive fetal approaches for SBA.

Main Methods:

  • Review of experimental and clinical studies on SBA natural history and prenatal repair.
  • Analysis of a randomized controlled trial on mid-gestational maternal-fetal surgery for SBA.
  • Discussion of recent developments in minimally invasive fetal SBA techniques.

Main Results:

  • Mid-gestational fetal surgery for SBA reduces the need for shunting and hindbrain herniation at 12 months.
  • Prenatal repair improves neurological motor function at 30 months of age.
  • Maternal-fetal surgery for SBA involves risks including prematurity and uterine scarring.

Conclusions:

  • Prenatal repair of spina bifida aperta can significantly improve neurological outcomes.
  • Careful patient selection and counseling are crucial due to associated maternal and fetal risks.
  • Minimally invasive fetal approaches are emerging but require further investigation.