This is Episode 28: Radiation Effects on Embryo & Fetus. In our previous episode, we explored the long-term stochastic risk of radiation-induced cancer. Today, we turn our attention to another critical area of radiation effects: the impact of in utero exposure on the developing embryo and fetus. This is a topic with profound clinical and ethical implications, and understanding the stage-dependent nature of these effects, the types of damage that can occur, and the relevant dose thresholds is paramount. We’ll see how effects like lethality, structural malformations, growth retardation, and severe central nervous system damage, particularly mental retardation, are strongly linked to the gestational age at the time of exposure and the radiation dose received. We'll also re-emphasize the distinction between these largely deterministic developmental effects and the stochastic risk of childhood cancer.
