| Radiation exposure in 212 very low and extremely low birth weight infants. | |
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MedLine Citation:
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PMID: 19948626 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: We determined the frequency and estimated effective radiation dose (E) from conventional diagnostic radiographs for infants who had birth weight of <or=1500 g (very low birth weight [VLBW] infants) and were treated in a NICU. METHODS: Entrance skin doses were experimentally measured for all standard weight-dependent exposure settings. For each radiograph in the radiologic file, the exposed area on the film was measured manually. Together with clinical data obtained from the Vermont Oxford Network, medical charts, and radiologic files, we estimated E. E values per radiograph and per child were compared with recommended reference values and annual natural background radiation (NBR). We used reference data to estimate the risk for radiation-induced cancers. RESULTS: Of 212 VLBW infants, 194 required at least 1 conventional radiograph. Measured entrance skin dose varied between 11.8 and 15.0 microGy. Calculated E received was 16 microsievert (microSv; median) per radiograph and 71.5 microSv (median) per infant for the whole stay. Infants with birth weight <or=750 g, length of stay >or=16 weeks, congenital malformations, or oxygen dependence for >or=36 weeks were at risk for high numbers of radiographs and high radiation dose. Compared with the annual NBR, the median of 4 radiographs per infant contributes 12 days of NBR. We estimated that only 1 of 60000 NICU-treated VLBW infants will develop a fatal malignancy up to 15 years of age. CONCLUSIONS: We found that NICU-treated VLBW infants had low radiation exposure compared with the annual NBR. |
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Authors:
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Kathrin Puch-Kapst; Ralf Juran; Brigitte Stoever; Roland R Wauer |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pediatrics Volume: 124 ISSN: 1098-4275 ISO Abbreviation: Pediatrics Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-12-01 Completed Date: 2009-12-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376422 Medline TA: Pediatrics Country: United States |
Other Details:
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Languages: eng Pagination: 1556-64 Citation Subset: AIM; IM |
Affiliation:
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Clinic of Neonatology Charit?? Campus Mitte, Charit??-Universit??tsmedizin Berlin, Berlin, Germany . |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Body Burden Cohort Studies Female Humans Infant, Extremely Low Birth Weight* Infant, Newborn Infant, Very Low Birth Weight* Intensive Care Units, Neonatal* Length of Stay Male Neoplasms, Radiation-Induced / epidemiology Radiation Dosage* Radiography / adverse effects*, utilization Radiometry / methods Risk Factors Utilization Review |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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