Managing terrorism or accidental nuclear errors, preparing for iodine-131 emergencies: a comprehensive review

Area of Science:

• Nuclear medicine
• Public health
• Thyroidology

Background:

• Radioactive iodine-131 (131I) from nuclear accidents can cause thyroid cancer in children.
• Potassium iodide (KI) prophylaxis is recommended but current pre-distribution strategies are likely ineffective.
• Iodine deficiency disorder (IDD) affects billions globally, increasing thyroid cancer risk after 131I exposure.

Purpose of the Study:

• To review emergency response strategies for 131I exposure.
• To propose improved KI prophylaxis protocols.
• To highlight the need for research in pediatric KI administration.

Main Methods:

• Comprehensive scientific literature review on 131I exposure and KI prophylaxis.
• Analysis of current government pre-distribution practices.
• Formulation of evidence-based recommendations for emergency response.

Main Results:

• Current KI pre-distribution is likely ineffective.
• Proposed recommendations include pre-distribution to at-risk groups, prompt administration (within 2 hours), lowest effective dose, extended distribution radius (300 miles), public education, and post-hoc analysis.
• Specific pediatric dosing (1-2 mg/10 lbs) is suggested due to lack of direct studies.

Conclusions:

• Enhanced KI prophylaxis strategies are critical for protecting public health after nuclear incidents.
• Addressing global iodine sufficiency is crucial for mitigating risks associated with 131I exposure.
• Further research on pediatric KI prophylaxis is urgently needed.