Abnormal Development - Radiation

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Introduction

This page introduces the possible effects of radiation on development. The two main sources of exposure are environmental and those used for medical diagnostic or therapeutic purposes.

Studies have shown that in maternal X-ray diagnostic examination, where the beam does not irradiate the embryo/fetus directly (maternal skull and chest X-ray), the absorbed dose for the embryo or fetus is extremely low (less than 0.01 mGy).

Treatment of hyperthyroidism with 131 Iodine in a pregnant woman is strictly contraindicated due to the effects on the developing embryonic thyroid gland.

Environmental Links: Introduction | low folic acid | iodine deficiency | Nutrition | Drugs | Australian Drug Categories | USA Drug Categories | thalidomide | herbal drugs | Illegal Drugs | smoking | Fetal Alcohol Syndrome | TORCH | viral infection | bacterial infection | fungal infection | zoonotic infection | toxoplasmosis | Malaria | maternal diabetes | maternal hypertension | maternal hyperthermia | Maternal Inflammation | Maternal Obesity | hypoxia | biological toxins | chemicals | heavy metals | air pollution | radiation | Prenatal Diagnosis | Neonatal Diagnosis | International Classification of Diseases | Fetal Origins Hypothesis

Some Recent Findings

[1]

Diagnostic Radiography

A recent Australian review study has shown minimal effects of standard diagnostic radiography underspecific conditions.

"The only adverse effect statistically proven at the dose levels associated with diagnostic radiation procedures is a very small increase in childhood malignancy, with an estimated increase of one additional cancer death per 1700 10 mGy exposures. The important exception was the risk to the fetal thyroid from radioiodine exposure after 12 weeks' gestation."

Lowe SA. Diagnostic radiography in pregnancy: risks and reality. Aust N Z J Obstet Gynaecol. 2004 Jun;44(3):191-6.

email Dr S.A. Lowe Department of Medicine, Royal Hospital for Women, New South Wales, Randwick, Sydney, Australia

References

  1. ↑ <pubmed>19180648</pubmed>

Reviews

Articles

Search Pubmed

June 2010 "Abnormal Development Radiation"

Search Pubmed: Abnormal Development Radiation

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Cite this page: Hill, M.A. (2024, May 19) Embryology Abnormal Development - Radiation. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Abnormal_Development_-_Radiation

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