Download Session 1 (tutorial session): Radiation and Thyroid Cancer Summary

Session 1 (tutorial session): Radiation and Thyroid Cancer
Summary
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Many patients with thyroid cancer were found in the Fukushima
Health Management survey and people are worried about the
effects of radiation from the accident.
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The global incidence of thyroid cancer has been increasing sine
approximately 30 years.
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In the Chernobyl accident young children, zero to 9 years are at
higher risk of thyroid cancer, with the incidence of thyroid cancer
appearing in increase beginning at 0.1 Gy at ages zero to 17 years.
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94.9% of people in Fukushima Prefecture at the time of the
accident (except site workers) received a dose of <2.0 mSv and 66%
received a dose of <1 mSv. (as of December 2013)
Session 1 (tutorial session): Radiation and Thyroid Cancer
Summary - Continued
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Even advanced stages of thyroid cancer after radiation
exposure can be treated effectively with surgery, radioidine
therapy and thyroid hormone supplements.
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The current high prevalence of in thyroid cancer recently
found in Fukushima Prefecture is highly likely attributable to
screening.
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Thyroid cancer occurance is influenced by:
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Change in risk factors
Change in diagnosis and detection
Methodology considerations
Session 1 (tutorial session): Radiation and Thyroid Cancer
Summary - Continued
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Perception by stakeholders is everything.
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Risk communications and dialogue is better locally oriented than centrally managed.
Recommendations –
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Continue and strengthen the Fukushima Health Management Survey.
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Develop a population based Cancer Registry.
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Enable linkage of data over time and end-points.
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Implement a Primary Prevention Program.
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Use of observation, for low risk papillary patients was found to be an effective treatment
therapy.
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Establish an effective, locally based Risk Communications Program.