Sunday, 16 August 2020

 

Is X’Ray safe in pregancy period??  

Ans: Mutagenic effects in the offspring of irradiated women my ne manifested years after the birth of the infant. Mutagenic effects presumably explain the 50% increased risk for leukemia in children exposed in utero to radiation during maternal pelvimetry examinations compared with non irradiated controls. However clinical consequence is almost nil, The absolute risk is about 1 in 2000 for exposed versus 1 in 3000 for unexposed children.

Low estimates one additional cancer death per 1700 10 mGy exposures. If one were to recommend that pregnancies be terminated whenever exposure from diagnostic radiation occurred because of the increased probability of leukemia in the offspring 1699 exposed pregnancies would have to be terminated to prevent a single cases of leukemia . Radiation exposures should be minimized but fear of radiation should never preclude on from necessary diagnostic procedures. A consent form has been developed for use with pregnant women.

Questions have also been raised about potential risks to children associated with parental occupational exposure to low dose radiation. A case control study by Gardner and colleagues in the area around the Sellafield Nuclear Facility in the United Kingdom found a statistically significant association between paternal preconception radiation dose and childhood leukemia risk . A similar association had been obse4rved between paternal preconception radiation and risk in workers at the Hanford Nuclear Facility in the United States. Thr finding regarding childhood leukemia risk is a particularly contentious issues contradicting studies of the children born to atomic bomb survivors who do not show genetic effects such as increased risks for childhood cancers. A study in the vicinity of nuclear facilities in Ontario also failed to demonstrate an association between childhood leukemia risk and paternal preconceptional radiation exposure.

 

Mutagenic effects in the offspring of irradiated women my ne manifested years after the birth of the infant. Mutagenic effects presumably explain the 50% increased risk for leukemia in children exposed in utero to radiation during maternal pelvimetry examinations compared with non irradiated controls. However clinical consequence is almost nil, The absolute risk is about 1 in 2000 for exposed versus 1 in 3000 for unexposed children.

Low estimates one additional cancer death per 1700 10 mGy exposures. If one were to recommend that pregnancies be terminated whenever exposure from diagnostic radiation occurred because of the increased probability of leukemia in the offspring 1699 exposed pregnancies would have to be terminated to prevent a single cases of leukemia . Radiation exposures should be minimized but fear of radiation should never preclude on from necessary diagnostic procedures. A consent form has been developed for use with pregnant women.

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