What question did this study set out to answer?

To evaluate the vascular safety and adverse effects of iodine-125 versus iridium-192 brachytherapy implants adjacent to the canine carotid artery after simulated radical neck dissection.

March 1, 1985The Laryngoscope

Safety of 125iodine and 192iridium implants to the canine carotid artery: Preliminary report

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Authors

WFWillard E. FeeTriological Society CHCynthia E. HandenZoological Society of San Diego DGDon R. GoffinetStanford Cancer Institute

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Implication

Randomized trial demonstrates higher arterial tolerance with iodine-125 than iridium-192 implants in dogs, suggesting lower dose rates reduce vascular radiation damage.

Key Points

To evaluate the vascular safety and adverse effects of iodine-125 versus iridium-192 brachytherapy implants adjacent to the canine carotid artery after simulated radical neck dissection.
Thirty-nine healthy dogs (N=39) underwent simulated radical neck dissection followed by prospectively randomized implantation of iodine-125 (125I) or iridium-192 (192Ir) across dose levels from 3,000 to 30,000 rad.
Bilateral selective carotid angiography was conducted immediately postoperatively, at six months, and at one year to assess arterial integrity.
No significant adverse vascular effects were detected in animals receiving up to 15,000 rad of 125I or up to 6,000 rad of 192Ir.
Animals in the highest dose tiers fared substantially better with 125I than with 192Ir, likely attributable to the lower dose rate of 125I delivery.

Cite This Study

Fee et al. (1985) studied this question.

synapsesocial.com/papers/6a897113abe412682d92e37a https://doi.org/10.1288/00005537-198503000-00016

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Implication

Randomized trial demonstrates higher arterial tolerance with iodine-125 than iridium-192 implants in dogs, suggesting lower dose rates reduce vascular radiation damage.

Safety of 125iodine and 192iridium implants to the canine carotid artery: Preliminary report

Discussion

Member takes

Implication

Key Points

Cite This Study

Safety of 125iodine and 192iridium implants to the canine carotid artery: Preliminary report

Discussion

Member takes

Implication

Key Points

Cite This Study

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