文献一覧: Akihito Nakai (著者)

133 0 0 0 OA PREGNANCY AND BIRTH SURVEY AFTER THE GREAT EAST JAPAN EARTHQUAKE AND FUKUSHIMA DAIICHI NUCLEAR POWER PLANT ACCIDENT IN FUKUSHIMA PREFECTURE

著者: KEIYA FUJIMORI HYO KYOZUKA SHUN YASUDA AYA GOTO SEIJI YASUMURA MISAO OTA AKIRA OHTSURU YASUHISA NOMURA KENICHI HATA KOUTA SUZUKI AKIHITO NAKAI MIEKO SATO SHIRO MATSUI KYOKO NAKANO MASAFUMI ABE FOR THE PREGNANCY AND BIRTH SURVEY GROUP OF THE FUKUSHIMA HEALTH MANAGEMENT SURVEY
出版者: 福島医学会
雑誌: FUKUSHIMA JOURNAL OF MEDICAL SCIENCE (ISSN:00162590)
巻号頁・発行日: pp.2014-9, (Released:2014-07-15)
参考文献数: 29
被引用文献数: 8 47

Background: On 11 March 2011, the Great East Japan Earthquake followed by a powerful tsunami hit the Pacific Coast of Northeast Japan and damaged Tokyo Electric Power Company’s Fukushima Daiichi Nuclear Power Plant, causing a radiation hazard in Fukushima Prefecture. The objective of this report is to describe some results of a questionnaire-based pregnancy and birth survey conducted by the Radiation Medical Science Center for the Fukushima Health Management Survey.Materials and Methods: Questionnaires were sent to women who received maternal and child health handbooks from municipal officers in Fukushima Prefecture between 1 August 2010 and 31 July 2011, with the aim of reaching those who were pregnant at the time of the disaster. Mailing began 18 January 2012. Data were analyzed separately for six geographic areas in Fukushima Prefecture.Results: The total number of women meeting survey criteria was 15,972. The number of responses received to date is 9,298 (58.2%). Data from 8602 respondents were analyzed after excluding 634 invalid responses and 5 induced and 57 spontaneous abortions (less than 22 gestational weeks). The incidences of stillbirth (over 22 completed gestational weeks), preterm birth, low birth weight and congenital anomalies were 0.25%, 4.4%, 8.7% and 2.72%, respectively. These incidences are similar to recent averages elsewhere in Japan.Conclusion: Considering the pregnancy and birth survey data in aggregate, our disaster seemed to provoke no significant adverse outcomes over the whole of Fukushima prefecture. But post-disaster prenatal care and support intended for patients’ safety and security should be coupled with ongoing surveillance and rigorous data analysis.

2019-04-15 21:43:27
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49 0 0 0 OA PREGNANCY AND BIRTH SURVEY AFTER THE GREAT EAST JAPAN EARTHQUAKE AND FUKUSHIMA DAIICHI NUCLEAR POWER PLANT ACCIDENT IN FUKUSHIMA PREFECTURE

著者: KEIYA FUJIMORI HYO KYOZUKA SHUN YASUDA AYA GOTO SEIJI YASUMURA MISAO OTA AKIRA OHTSURU YASUHISA NOMURA KENICHI HATA KOUTA SUZUKI AKIHITO NAKAI MIEKO SATO SHIRO MATSUI KYOKO NAKANO MASAFUMI ABE FOR THE PREGNANCY AND BIRTH SURVEY GROUP OF THE FUKUSHIMA HEALTH MANAGEMENT SURVEY
出版者: 福島医学会
雑誌: FUKUSHIMA JOURNAL OF MEDICAL SCIENCE (ISSN:00162590)
巻号頁・発行日: vol.60, no.1, pp.75-81, 2014 (Released:2014-08-08)
参考文献数: 29
被引用文献数: 8 47

2017-06-19 06:56:03
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2 0 0 0 OA Effects of External Radiation Exposure on Perinatal Outcomes in Pregnant Women After the Fukushima Daiichi Nuclear Power Plant Accident: the Fukushima Health Management Survey

著者: Shun Yasuda Kanako Okazaki Hironori Nakano Kayoko Ishii Hyo Kyozuka Tsuyoshi Murata Keiya Fujimori Aya Goto Seiji Yasumura Misao Ota Kenichi Hata Kohta Suzuki Akihito Nakai Tetsuya Ohira Hitoshi Ohto Kenji Kamiya
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.32, no.Supplement_XII, pp.S104-S114, 2022-12-05 (Released:2022-12-05)
参考文献数: 51
被引用文献数: 4

Background: This study aimed to investigate the effects of maternal exposure to external radiation on perinatal outcomes among women who experienced the Fukushima Daiichi Nuclear Disaster (FDND) using the Fukushima Health Management Survey (FHMS).Methods: Data from the Pregnancy and Birth Survey and Basic Survey in the FHMS were combined to analyze external maternal radiation exposure following the FDND, and the relationship between radiation dose and perinatal outcomes was analyzed using binomial logistic regression analysis. Missing dose data were supplemented using multiple imputation.Results: A total of 6,875 individuals responded to the survey. Congenital anomalies occurred in 2.9% of patients, low birth weight (LBW) in 7.6%, small for gestation age (SGA; <10th percentile) in 8.9%, and preterm birth in 4.1%. The median maternal external radiation dose was 0.5 mSv (maximum, 5.2 mSv). Doses were classified as follows: <1 mSv (reference), 1 to <2 mSv, and ≥2 mSv. For congenital anomalies, the crude odds ratio for 1 to <2 mSv was 0.81 (95% confidence interval [CI], 0.56–1.17) (no participants with congenital anomaly were exposed to ≥2 mSv). At 1 to <2 mSv and ≥2 mSv, the respective adjusted odds ratios were 0.91 (95% CI, 0.71–1.18) and 1.21 (95% CI, 0.53–2.79) for LBW, 1.14 (95% CI, 0.92–1.42) and 0.84 (95% CI, 0.30–2.37) for SGA, and 0.91 (95% CI, 0.65–1.29) and 1.05 (95% CI, 0.22–4.87) for preterm birth.Conclusion: External radiation dose due to the FDND was not associated with congenital anomalies, LBW, SGA, or preterm birth.

2023-01-05 08:43:19
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1 0 0 0 OA The Effects of the Great East Japan Earthquake on Perinatal Outcomes: Results of the Pregnancy and Birth Survey in the Fukushima Health Management Survey

著者: Hyo Kyozuka Tsuyoshi Murata Shun Yasuda Kayoko Ishii Keiya Fujimori Aya Goto Seiji Yasumura Misao Ota Kenichi Hata Kohta Suzuki Akihito Nakai Tetsuya Ohira Hitoshi Ohto Kenji Kamiya
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.32, no.Supplement_XII, pp.S57-S63, 2022-12-05 (Released:2022-12-05)
参考文献数: 42
被引用文献数: 5

There are limited studies on the long-term effects of natural/environmental disasters, especially nuclear disasters, on obstetric outcomes. This study aimed to review the results of perinatal outcomes immediately after the Great East Japan Earthquake (GEJE) and the Fukushima Daiichi Nuclear Power Plant accident, as well as their long-term trends over 8 years, in the Fukushima Health Management Survey. The annual population-based Pregnancy and Birth Survey is conducted as part of the Fukushima Health Management Survey. The Fukushima Prefecture government launched it to assess the health conditions of pregnant women and their neonates after the GEJE. The self-reported questionnaire was sent to 115,976 pregnant women by mail from January 2012, with 58,344 women responding to the questionnaire (50.3% response rate). Pregnancy complications, such as gestational hypertension, respiratory diseases, and mental disorders, increased in some women who were pregnant at the time of the earthquake and immediately after the earthquake. However, the direct effects on newborns, such as preterm birth, low birth weight, and congenital anomalies, were not immediately clear after the earthquake. Although there were significant differences in the occurrence of preterm birth and low birth weight among the districts, there was no change in the occurrences of preterm birth, low birth weight, or anomalies in newborns in Fukushima Prefecture from the fiscal year 2011 to the fiscal year 2018. Therefore, the long-term effects of the post-disaster radiation accident on perinatal outcomes are considered to be very small.

2022-12-30 21:00:08
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1 0 0 0 OA Pregnancy-associated Deaths: 31-year Experience

著者: Koichi Yoneyama Atsuko Sekiguchi Takashi Matsushima Rieko Kawase Akihito Nakai Hirobumi Asakura Toshiyuki Takeshita
出版者: 日本医科大学医学会
雑誌: Journal of Nippon Medical School (ISSN:13454676)
巻号頁・発行日: vol.83, no.1, pp.6-14, 2016-01-15 (Released:2016-03-09)
参考文献数: 19
被引用文献数: 2

Aim: The aim of the present study was to elucidate the clinical characteristics of pregnancy-associated maternal deaths. Methods: We performed a retrospective analysis with medical records and autopsy reports of cases of pregnancy-associated deaths. We collected information on all maternal deaths related to pregnancy that occurred in 3 hospitals affiliated with Nippon Medical School in Japan from January 1, 1984, to December 31, 2014. Data analyzed were maternal age, past medical history, parity, gestational age, clinical signs and symptoms, cause of death, and maternal autopsy findings. Results: A total of 26 maternal deaths occurred during the 31-year study period. Autopsies were performed for 16 patients (61.5%). The 26 deaths included 19 (73.1%) classified as direct maternal deaths and 7 (26.9%) classified as indirect maternal deaths. The mean maternal age at death was 33.1±4.3 years (range, 26-41 years). The highest percentage of women was aged 35 to 39 years (38.5%). Of the 26 maternal deaths, 69% occurred at 32 to 41 weeks of gestation. In cases of direct maternal death, the leading causes were amniotic fluid embolism (7 cases, 27.0% of all deaths) and hemorrhage (6 cases, 23.1% of all deaths). In cases of indirect obstetric deaths, the causes included cardiovascular disorders, cerebrovascular disorders, sepsis due to group A streptococcal infection, and hepatic failure of unknown etiology. Conclusions: Amniotic fluid embolism was the leading cause of maternal deaths and was followed by obstetric hemorrhage. To prevent and reduce the number of maternal deaths in Japan, further basic and clinical research on amniotic fluid embolism is required.

2016-03-31 03:45:37
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