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Related Experiment Videos

Sequential half-body irradiation in childhood

R D Jenkin1, M P Berry

  • 1The Ontario Cancer Institute, Department of Radiology, University of Toronto, Ontario, Canada.

International Journal of Radiation Oncology, Biology, Physics
|December 1, 1983
PubMed
Summary

Single-dose half-body irradiation (HBI) effectively palliates pain from bone metastases in adults, offering rapid relief. While less established in pediatric cancers, HBI shows promise as a tolerable treatment option when combined with other therapies.

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Area of Science:

  • Oncology
  • Radiation Oncology
  • Palliative Care

Background:

  • Single-dose half-body irradiation (HBI) is an established palliative treatment for widespread bone metastases in adults.
  • HBI provides significant pain relief in a high proportion of adult patients.
  • The efficacy of HBI in pediatric malignancies is less explored due to tumor characteristics and shorter metastatic phases.

Purpose of the Study:

  • To evaluate the effectiveness and tolerability of palliative HBI in selected pediatric malignancies.
  • To assess HBI's role in managing bone metastases, particularly in Ewing's sarcoma.
  • To compare outcomes with historical data and standard treatment protocols.

Main Methods:

  • A pilot study involving 17 pediatric patients with Ewing's sarcoma of bone was conducted.

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  • Patients were treated with single-dose HBI, often in conjunction with local or systemic therapies.
  • Outcomes were compared to historical controls and previous studies, including the first intergroup Ewing's sarcoma study.

    • Main Results:

    • HBI demonstrated good tolerability and was manageable on an outpatient basis.
    • Pain relief was achieved in a significant number of adult patients, with a fast onset and durable response.
    • In the pediatric pilot study, overall survival was comparable to existing Ewing's sarcoma studies, and a one-year survival rate increase was noted compared to prior total body irradiation studies.

    Conclusions:

    • Single-dose HBI is a well-tolerated and effective palliative treatment for bone metastases in adults.
    • While not a primary treatment for pediatric malignancies, HBI shows potential as an adjunct therapy, particularly for Ewing's sarcoma.
    • Further investigation is warranted to establish HBI's role in pediatric oncology, considering its tolerability and potential survival benefits when combined with other treatments.