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Toyoaki Sawano

Biographic Data

ID5809585
NAMEToyoaki Sawano
GIVEN NAMESToyoaki
FAMILY NAMESawano
SIGNATURESAWANO T
AFFILIATIONSFukushima Medical University
ORCID0000-0002-1482-6618
VERIFIEDYes
TOTAL WORKS20
TOTAL CITATIONS0
AUTHOR COUNT20
EDITOR COUNT0
FIRST PUBLICATION YEAR2017
LATEST PUBLICATION YEAR2025
H-INDEX0
  • What facilitated the successful evacuations of patients on dialysis after the Great East Japan Earthquake and Fukushima Daiichi Nuclear Power Plant accident? A qualitative analysis of facility staff e…

    Open Access•Katsumori Takamatsu, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2025

    This study aimed to assess the impact of the 2011 Great East Japan Earthquake and subsequent Fukushima Daiichi Nuclear Power Plant accident on dialysis management in the affected areas. Although many challenges faced by dialysis facilities after large-scale complex disasters have been previously reported, the first-hand experiences of stakeholders involved in these facilities have not been appraised. To address this gap, we conducted interviews w…

  • Necessity of long-term support after disasters: Lessons from disaster-related death criteria after the Fukushima nuclear disaster

    Open Access•Chika Yamamoto, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2025

    As disasters increase in both frequency and complexity, their indirect effects - such as disruptions to medical care, environmental changes, prolonged periods of evacuation, and psychosocial stress - are increasingly recognised as critical public health issues. In Japan, disaster-related deaths (DRDs) represent an institutional framework to address these secondary health impacts. We compare two DRD certification systems: the Nagaoka Criteria and …

  • Disaster-related deaths with alcohol-related diseases after the Fukushima Daiichi nuclear power plant accident: Case series

    Open Access•Kemmei Kitazawa, Toyoaki Sawano et al.•ARTICLE•Frontiers in Public Health•2024

    Introduction: The health of patients with mental disorders, such as alcohol-related diseases, often deteriorates after disasters. However, the causes of death among those with alcohol-related diseases during and after radiation disasters remain unclear. Methods: To minimize and prevent alcohol-related deaths in future radiation disasters, we analyzed and summarized six cases of alcohol-related deaths in Minamisoma City, a municipality near the Fu…

  • Case Report: Difficulties faced by a home oxygen therapy patient who died after the Fukushima Daiichi nuclear power plant accident

    Open Access•Momoka Yamamura, Toyoaki Sawano et al.•ARTICLE•Frontiers in Public Health•2024

    Following the Great East Japan Earthquake (GEJE) and the Fukushima Daiichi nuclear power plant accident in 2011, mandatory evacuation orders were issued to residents living near the nuclear power plant in Fukushima prefecture, including some patients receiving home oxygen therapy. Although the vulnerability of patients with home oxygen therapy (one of the population groups most vulnerable to disasters) has been noted, there is little information …

  • Group of longitudinal adverse event patterns after the fourth dose of Covid-19 vaccination with a latent class analysis

    Open Access•Chika Yamamoto, Yurie Kobashi et al.•ARTICLE•Frontiers in Public Health•2024

    Introduction Vaccination has been implemented as a useful measure to combat the COVID-19 pandemic. However, there is a tendency for individuals to avoid vaccination due to the possibility of adverse events, making it important to investigate the relationship between COVID-19 vaccines and their adverse events. This study explored longitudinal adverse event patterns and factors that influence adverse events following the second to fourth doses of t…

  • Disaster response and older adult cancer care in super-aged societies: Insights from the 2024 Noto Peninsula Earthquake in Oku-Noto, Japan

    Open Access•Ayu Yasui, S Kinoshita et al.•ARTICLE•Frontiers in Public Health•2024

    Natural disasters can severely disrupt cancer care delivery systems, compromising the continuity and quality of oncological services.1 This issue has been a subject of growing concern since Hurricane Katrina in 2005,2 with the 2011 Great East Japan Earthquake further intensifying research and discussions.3-6 Recent events, including the 2015 Nepal Earthquake,7 2017 Hurricanes Irma and Maria in Puerto Rico,8 and the 2023 Morocco earthquake,9 have …

  • Impact of large-scale disasters on breast cancer care: A qualitative analysis of patient experiences during the 2011 triple disaster in Fukushima, Japan

    Open Access•Yudai Kaneda, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2024

    Large-scale disasters can severely impact breast cancer care, leading to treatment disruptions and delays. While empirical studies on these effects are limited, patient narratives provide valuable insights. This study explored treatment continuity and medical access among local breast cancer patients affected by the 2011 triple disaster through qualitative research methods. The study involved 21 local breast cancer patients diagnosed before the d…

  • Association between the deaths indirectly caused by the Fukushima Daiichi nuclear power plant accident (disaster-related deaths) and pre-disaster long-term care certificate level: A retrospective obse…

    Open Access•Moe Kawashima, Toyoaki Sawano et al.•ARTICLE•International Journal of Disaster…•2023

    The health of the vulnerable populations receiving the Long-Term Care (LTC) Insurance Programs was threatened by the direct and indirect effects of disasters. The 2011 Great East Japan Earthquake and Tsunami and the explosion at the Fukushima Daiichi nuclear power plant (FDNPP) forced 164,865 people's evacuation and caused many disaster-related deaths. We examined the relationship between these deaths and LTC certification. Data were collected fr…

  • Assessment of drug needs and contributions of pharmacists in the aftermath of the 2011 triple disaster in Fukushima, Japan: A combined analysis

    Open Access•Takanao Hashimoto, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2023

    After a major disaster, drug logistics are crucial for maintaining medical care. Although pharmacists play a vital role in healthcare institutions, their role is not well defined, and their recognition from other healthcare professionals is lacking. This was evident at Minamisoma Municipal General Hospital in Fukushima, Japan, which was affected by the Great East Japan earthquake, tsunami, and nuclear power plant accident. The supply of drugs and…

  • Mortality risk associated with nuclear disasters depends on the time during and following evacuation of hospitals near nuclear power plants: An observational and qualitative study

    Open Access•Toyoaki Sawano, Yuki Senoo et al.•ARTICLE•International Journal of Disaster…•2023

    This study aimed to examine the factors correlated with emergency evacuations on patients’ prognosis in hospitals severely affected by the Fukushima Daiichi nuclear power plant (FDNPP) accident in March 2011, and to recommend measures mitigating potential health risks among them in future disasters. Seven hospitals within a 20-km radius of the FDNPP were designated as the evacuation zone, of which three hospitals located within a 5-km radius were…

  • Why Do They Not Come Home? Three Cases of Fukushima Nuclear Accident Evacuees

    Open Access•Naomi Ito, Nobuaki Moriyama et al.•ARTICLE•International Journal of…•2023

    Many people wish to return to where they used to live after evacuation due to disaster. After the Fukushima nuclear accident in 2011, many residents were forced to evacuate due to concerns about radiation. Subsequently, the evacuation order was lifted, and the government promoted a return policy. However, it has been reported that a considerable number of residents living in evacuation sites or other areas wish to return but are unable to do so. …

  • How Do Institutional Conflicts of Interest Between Pharmaceutical Companies and the Healthcare Sector Become Corrupt? A Case Study of Scholarship Donations Between Department of Clinical Anesthesiolog…

    Open Access•Akihiko Ozaki, Anju Murayama et al.•ARTICLE•Frontiers in Public Health•2022

    Institutional conflicts of interest (ICOIs) with pharmaceutical companies can bias internal operation of healthcare organizations. Naturally, a scholarship donation—which is a donation scheme unique to Japan, provided to healthcare organizations and their subunits to encourage educational and academic activities related to the development of new drugs—fall into the ICOI category. While anecdotal evidence exists that scholarship donations have bee…

  • Pharmaceutical Payments to Japanese Board-Certified Infectious Disease Specialists: A Four-Year Retrospective Analysis of Payments from 92 Pharmaceutical Companies between 2016 and 2019

    Open Access•Anju Murayama, Sae Kamamoto et al.•ARTICLE•International Journal of…•2022

    There were substantial financial relationships between pharmaceutical companies and board-certified infectious disease specialists in Japan. Furthermore, high ranked specialists such as those in the executive board had stronger financial ties with the companies

  • Awareness and Perceptions among Members of a Japanese Cancer Patient Advocacy Group Concerning the Financial Relationships between the Pharmaceutical Industry and Physicians

    Open Access•Anju Murayama, Yuki Senoo et al.•ARTICLE•International Journal of…•2022

    FCOI-financial conflicts of interest; United States-US; Pharma-pharmaceutical companies; RQ-research question

  • Cross-Country Student Perceptions about Online Medical Education during the Covid-19 Pandemic

    Open Access•Tomoya Suzuki, Anju Murayama et al.•ARTICLE•International Journal of…•2022

    (1) Introduction: Most educational institutions around the world have shifted from traditional face-to-face to online education amid COVID-19. This change may particularly impact medical students, whose education is heavily influenced by clinical learning experiences. Accordingly, we investigated medical students' perceptions about positive and negative aspects of online medical education in Japan and overseas during the COVID-19 pandemic. (2) Me…

  • Importance of individualized disaster preparedness for hospitalized or institutionalized patients: Lessons learned from the legal revisions made to the Basic Act on Disaster Management in Japan follow…

    Open Access•Makoto Yoshida, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2021

    T he global occurrence of natural and human-made disasters and emergencies is increasing.The fundamental goal of disaster preparedness, management, and recovery is to minimize damage to victims.However, disasters continue to affect billions of people and cause losses of lives and assets every year.Compared to other groups, vulnerable groups, particularly the elderly, people with disabilities, and institutionalized patients (living in hospitals an…

  • Comparative risk assessment of non-communicable diseases by evacuation scenario– a retrospective study in the 7 years following the Fukushima Daiichi nuclear power plant accident

    Open Access•Shuhei Nomura, Michio Murakami et al.•ARTICLE•Global Health Action•2021

    Background: As a result of the Fukushima Daiichi nuclear power plant accident, many residents evacuated and were exposed to changes in their living environment and socioeconomic status, and to persistent stressors. Past studies have suggested the potential for these circumstances to contribute to long-term changes to population health.Objective: The objective of this study was to gain a better understanding of long-term health effects of evacuati…

  • Will initial consultation patterns among undiagnosed cancer patients be the same after this Covid-19 pandemic? Experiences from the 2011 triple disaster in Fukushima, Japan

    Open Access•Akihiko Ozaki, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2020

  • Need for more proactive use of pharmacists in the Covid-19 pandemic following lessons learnt from the Great East Japan Earthquake

    Open Access•Takanao Hashimoto, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2020

    this experience can be applied for the Coronavirus Disease 2019 (COVID-19) pandemic

  • Birth Outcomes after the Fukushima Daiichi Nuclear Power Plant Disaster: A Long-Term Retrospective Study

    Open Access•Claire Leppold, Shuhei Nomura et al.•ARTICLE•International Journal of…•2017

    Changes in population birth outcomes, including increases in low birthweight or preterm births, have been documented after natural and manmade disasters. However, information is limited following the 2011 Fukushima Daiichi Nuclear Power Plant Disaster. In this study, we assessed whether there were long-term changes in birth outcomes post-disaster, compared to pre-disaster data, and whether residential area and food purchasing patterns, as proxy m…

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  • Birth Outcomes after the Fukushima Daiichi Nuclear Power Plant Disaster: A Long-Term Retrospective Study

    Open Access•Claire Leppold, Shuhei Nomura et al.•ARTICLE•International Journal of…•2017

    Changes in population birth outcomes, including increases in low birthweight or preterm births, have been documented after natural and manmade disasters. However, information is limited following the 2011 Fukushima Daiichi Nuclear Power Plant Disaster. In this study, we assessed whether there were long-term changes in birth outcomes post-disaster, compared to pre-disaster data, and whether residential area and food purchasing patterns, as proxy m…

  • Will initial consultation patterns among undiagnosed cancer patients be the same after this Covid-19 pandemic? Experiences from the 2011 triple disaster in Fukushima, Japan

    Open Access•Akihiko Ozaki, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2020

  • Need for more proactive use of pharmacists in the Covid-19 pandemic following lessons learnt from the Great East Japan Earthquake

    Open Access•Takanao Hashimoto, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2020

    this experience can be applied for the Coronavirus Disease 2019 (COVID-19) pandemic

  • Importance of individualized disaster preparedness for hospitalized or institutionalized patients: Lessons learned from the legal revisions made to the Basic Act on Disaster Management in Japan follow…

    Open Access•Makoto Yoshida, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2021

    T he global occurrence of natural and human-made disasters and emergencies is increasing.The fundamental goal of disaster preparedness, management, and recovery is to minimize damage to victims.However, disasters continue to affect billions of people and cause losses of lives and assets every year.Compared to other groups, vulnerable groups, particularly the elderly, people with disabilities, and institutionalized patients (living in hospitals an…

  • Comparative risk assessment of non-communicable diseases by evacuation scenario– a retrospective study in the 7 years following the Fukushima Daiichi nuclear power plant accident

    Open Access•Shuhei Nomura, Michio Murakami et al.•ARTICLE•Global Health Action•2021

    Background: As a result of the Fukushima Daiichi nuclear power plant accident, many residents evacuated and were exposed to changes in their living environment and socioeconomic status, and to persistent stressors. Past studies have suggested the potential for these circumstances to contribute to long-term changes to population health.Objective: The objective of this study was to gain a better understanding of long-term health effects of evacuati…

  • How Do Institutional Conflicts of Interest Between Pharmaceutical Companies and the Healthcare Sector Become Corrupt? A Case Study of Scholarship Donations Between Department of Clinical Anesthesiolog…

    Open Access•Akihiko Ozaki, Anju Murayama et al.•ARTICLE•Frontiers in Public Health•2022

    Institutional conflicts of interest (ICOIs) with pharmaceutical companies can bias internal operation of healthcare organizations. Naturally, a scholarship donation—which is a donation scheme unique to Japan, provided to healthcare organizations and their subunits to encourage educational and academic activities related to the development of new drugs—fall into the ICOI category. While anecdotal evidence exists that scholarship donations have bee…

  • Pharmaceutical Payments to Japanese Board-Certified Infectious Disease Specialists: A Four-Year Retrospective Analysis of Payments from 92 Pharmaceutical Companies between 2016 and 2019

    Open Access•Anju Murayama, Sae Kamamoto et al.•ARTICLE•International Journal of…•2022

    There were substantial financial relationships between pharmaceutical companies and board-certified infectious disease specialists in Japan. Furthermore, high ranked specialists such as those in the executive board had stronger financial ties with the companies

  • Awareness and Perceptions among Members of a Japanese Cancer Patient Advocacy Group Concerning the Financial Relationships between the Pharmaceutical Industry and Physicians

    Open Access•Anju Murayama, Yuki Senoo et al.•ARTICLE•International Journal of…•2022

    FCOI-financial conflicts of interest; United States-US; Pharma-pharmaceutical companies; RQ-research question

  • Cross-Country Student Perceptions about Online Medical Education during the Covid-19 Pandemic

    Open Access•Tomoya Suzuki, Anju Murayama et al.•ARTICLE•International Journal of…•2022

    (1) Introduction: Most educational institutions around the world have shifted from traditional face-to-face to online education amid COVID-19. This change may particularly impact medical students, whose education is heavily influenced by clinical learning experiences. Accordingly, we investigated medical students' perceptions about positive and negative aspects of online medical education in Japan and overseas during the COVID-19 pandemic. (2) Me…

  • Association between the deaths indirectly caused by the Fukushima Daiichi nuclear power plant accident (disaster-related deaths) and pre-disaster long-term care certificate level: A retrospective obse…

    Open Access•Moe Kawashima, Toyoaki Sawano et al.•ARTICLE•International Journal of Disaster…•2023

    The health of the vulnerable populations receiving the Long-Term Care (LTC) Insurance Programs was threatened by the direct and indirect effects of disasters. The 2011 Great East Japan Earthquake and Tsunami and the explosion at the Fukushima Daiichi nuclear power plant (FDNPP) forced 164,865 people's evacuation and caused many disaster-related deaths. We examined the relationship between these deaths and LTC certification. Data were collected fr…

  • Assessment of drug needs and contributions of pharmacists in the aftermath of the 2011 triple disaster in Fukushima, Japan: A combined analysis

    Open Access•Takanao Hashimoto, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2023

    After a major disaster, drug logistics are crucial for maintaining medical care. Although pharmacists play a vital role in healthcare institutions, their role is not well defined, and their recognition from other healthcare professionals is lacking. This was evident at Minamisoma Municipal General Hospital in Fukushima, Japan, which was affected by the Great East Japan earthquake, tsunami, and nuclear power plant accident. The supply of drugs and…

  • Mortality risk associated with nuclear disasters depends on the time during and following evacuation of hospitals near nuclear power plants: An observational and qualitative study

    Open Access•Toyoaki Sawano, Yuki Senoo et al.•ARTICLE•International Journal of Disaster…•2023

    This study aimed to examine the factors correlated with emergency evacuations on patients’ prognosis in hospitals severely affected by the Fukushima Daiichi nuclear power plant (FDNPP) accident in March 2011, and to recommend measures mitigating potential health risks among them in future disasters. Seven hospitals within a 20-km radius of the FDNPP were designated as the evacuation zone, of which three hospitals located within a 5-km radius were…

  • Why Do They Not Come Home? Three Cases of Fukushima Nuclear Accident Evacuees

    Open Access•Naomi Ito, Nobuaki Moriyama et al.•ARTICLE•International Journal of…•2023

    Many people wish to return to where they used to live after evacuation due to disaster. After the Fukushima nuclear accident in 2011, many residents were forced to evacuate due to concerns about radiation. Subsequently, the evacuation order was lifted, and the government promoted a return policy. However, it has been reported that a considerable number of residents living in evacuation sites or other areas wish to return but are unable to do so. …

  • Disaster-related deaths with alcohol-related diseases after the Fukushima Daiichi nuclear power plant accident: Case series

    Open Access•Kemmei Kitazawa, Toyoaki Sawano et al.•ARTICLE•Frontiers in Public Health•2024

    Introduction: The health of patients with mental disorders, such as alcohol-related diseases, often deteriorates after disasters. However, the causes of death among those with alcohol-related diseases during and after radiation disasters remain unclear. Methods: To minimize and prevent alcohol-related deaths in future radiation disasters, we analyzed and summarized six cases of alcohol-related deaths in Minamisoma City, a municipality near the Fu…

  • Case Report: Difficulties faced by a home oxygen therapy patient who died after the Fukushima Daiichi nuclear power plant accident

    Open Access•Momoka Yamamura, Toyoaki Sawano et al.•ARTICLE•Frontiers in Public Health•2024

    Following the Great East Japan Earthquake (GEJE) and the Fukushima Daiichi nuclear power plant accident in 2011, mandatory evacuation orders were issued to residents living near the nuclear power plant in Fukushima prefecture, including some patients receiving home oxygen therapy. Although the vulnerability of patients with home oxygen therapy (one of the population groups most vulnerable to disasters) has been noted, there is little information …

  • Group of longitudinal adverse event patterns after the fourth dose of Covid-19 vaccination with a latent class analysis

    Open Access•Chika Yamamoto, Yurie Kobashi et al.•ARTICLE•Frontiers in Public Health•2024

    Introduction Vaccination has been implemented as a useful measure to combat the COVID-19 pandemic. However, there is a tendency for individuals to avoid vaccination due to the possibility of adverse events, making it important to investigate the relationship between COVID-19 vaccines and their adverse events. This study explored longitudinal adverse event patterns and factors that influence adverse events following the second to fourth doses of t…

  • Disaster response and older adult cancer care in super-aged societies: Insights from the 2024 Noto Peninsula Earthquake in Oku-Noto, Japan

    Open Access•Ayu Yasui, S Kinoshita et al.•ARTICLE•Frontiers in Public Health•2024

    Natural disasters can severely disrupt cancer care delivery systems, compromising the continuity and quality of oncological services.1 This issue has been a subject of growing concern since Hurricane Katrina in 2005,2 with the 2011 Great East Japan Earthquake further intensifying research and discussions.3-6 Recent events, including the 2015 Nepal Earthquake,7 2017 Hurricanes Irma and Maria in Puerto Rico,8 and the 2023 Morocco earthquake,9 have …

  • Impact of large-scale disasters on breast cancer care: A qualitative analysis of patient experiences during the 2011 triple disaster in Fukushima, Japan

    Open Access•Yudai Kaneda, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2024

    Large-scale disasters can severely impact breast cancer care, leading to treatment disruptions and delays. While empirical studies on these effects are limited, patient narratives provide valuable insights. This study explored treatment continuity and medical access among local breast cancer patients affected by the 2011 triple disaster through qualitative research methods. The study involved 21 local breast cancer patients diagnosed before the d…

  • What facilitated the successful evacuations of patients on dialysis after the Great East Japan Earthquake and Fukushima Daiichi Nuclear Power Plant accident? A qualitative analysis of facility staff e…

    Open Access•Katsumori Takamatsu, Akihiko Ozaki et al.•ARTICLE•International Journal of Disaster…•2025

    This study aimed to assess the impact of the 2011 Great East Japan Earthquake and subsequent Fukushima Daiichi Nuclear Power Plant accident on dialysis management in the affected areas. Although many challenges faced by dialysis facilities after large-scale complex disasters have been previously reported, the first-hand experiences of stakeholders involved in these facilities have not been appraised. To address this gap, we conducted interviews w…

  • Necessity of long-term support after disasters: Lessons from disaster-related death criteria after the Fukushima nuclear disaster

    Open Access•Chika Yamamoto, Toyoaki Sawano et al.•ARTICLE•Journal of Global Health•2025

    As disasters increase in both frequency and complexity, their indirect effects - such as disruptions to medical care, environmental changes, prolonged periods of evacuation, and psychosocial stress - are increasingly recognised as critical public health issues. In Japan, disaster-related deaths (DRDs) represent an institutional framework to address these secondary health impacts. We compare two DRD certification systems: the Nagaoka Criteria and …

Medicine (20 works) · Medical emergency (13 works) · Disaster Response and Management (11 works) · Political science (11 works) · Environmental health (10 works) · Radioactive contamination and transfer (8 works) · Nuclear power plant (6 works) · Poison control (6 works) · Risk Perception and Management (6 works) · Fukushima Nuclear Accident (5 works)

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