Annals of Occupational and Environmental Medicine

  • 제34권
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  • Pages.5.1-5.10
  • /
  • 2022
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  • 1225-3618(pISSN)
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  • 2052-4374(eISSN)
대한직업환경의학회 (The Korean Society of Occupational & Environmental Medicine)
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Assessment of risks for breast cancer in a flight attendant exposed to night shift work and cosmic ionizing radiation: a case report

  • Dong Joon Park (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Sungkyun Park (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Seong Won Ma (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Hoekyeong Seo (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Sang Gil Lee (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Kyung-Eun Lee (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency)
  • 투고 : 2021.09.23
  • 심사 : 2022.03.06
  • 발행 : 2022.12.31
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초록

Background: Some epidemiological studies have estimated exposure among flight attendants with and without breast cancer. However, it is difficult to find a quantitative evaluation of occupational exposure factors related to cancer development individually in the case of breast cancer in flight attendants. That is, most, if not all, epidemiological studies of breast cancer in flight attendants with quantitative exposure estimates have estimated exposure in the absence of individual flight history data. Case presentation: A 41-year-old woman visited the hospital due to a left breast mass after a regular check-up. Breast cancer was suspected on ultrasonography. Following core biopsy, she underwent various imaging modalities. She was diagnosed invasive ductal carcinoma of no special type (estrogen receptor positive in 90%, progesterone receptor positive in 3%, human epidermal growth factor receptor 2/neu equivocal) with histologic grade 3 and nuclear grade 3 in the left breast. Neoadjuvant chemotherapy was administered to reduce the tumor size before surgery. However, due to serious chemotherapy side effects, the patient opted for alternative and integrative therapies. She joined the airline in January, 1996. Out of all flights, international flights and night flights accounted for 94.9% and 26.2, respectively. Night flights were conducted at least four times per month. Moreover, based on the virtual computer program CARI-6M, the estimated dose of cosmic radiation exposure was 78.81 mSv. There were no other personal triggers or family history of breast cancer. Conclusions: This case report shows that the potentially causal relationship between occupational harmful factors and the incidence of breast cancer may become more pronounced when night shift workers who work continuously are exposed to cosmic ionizing radiation. Therefore, close attention and efforts are needed to adjust night shift work schedules and regulate cosmic ionizing radiation exposure.

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참고문헌

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