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[Teratogenic risk of low level ionizing radiation. Congenital heart disease in infant]

Monica Cresci1, Ilenia Foffa, Lamia Ait-Ali

  • 1Unità di Ricerca Genetica, Istituto di Fisiologia Clinica, Consiglio Nazionale delle Ricerche, Pisa.

Recenti Progressi in Medicina
|November 5, 2009
PubMed

Insights

Maternal exposure to ionizing radiation during early pregnancy may increase the risk of congenital heart defects in infants. This case study highlights a potential link between occupational radiation exposure and birth defects.

Area of Science:

  • Cardiology
  • Medical Physics
  • Teratology

Background:

  • Congenital heart diseases (CHDs) are the most common and lethal birth defects globally.
  • CHDs arise from complex interactions between genetic and environmental factors.
  • Prenatal risk factors, including occupational exposures, are increasingly studied.

Observation:

  • A case report of a 4-month-old infant with a congenital heart defect.
  • The infant's mother worked in a cardiovascular catheterization laboratory.
  • Maternal exposure occurred during the first 4 weeks of pregnancy.

Findings:

  • The mother's radiation dose was 4220 microSieverts (µSv).
  • This dose is equivalent to approximately 210 chest X-rays.
  • The findings suggest a potential teratogenic effect of ionizing radiation.

Implications:

  • This case raises concerns about occupational radiation safety for pregnant healthcare workers.
  • Further research is needed to establish a causal link between low-dose radiation and CHDs.
  • Protecting pregnant workers from radiation is crucial for preventing birth defects.

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