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Related Experiment Videos

Prostatic carcinoma: limited field irradiation.

M C Rounsaville, J P Green, J M Vaeth

    International Journal of Radiation Oncology, Biology, Physics
    |July 1, 1987
    PubMed
    Summary

    This study on limited field radiotherapy for adenocarcinoma found survival rates vary by stage, with higher stages experiencing more local-regional failure. Complications were linked to treatment technique, with fewer issues in multi-field or rotational plans.

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    Area of Science:

    • Radiation Oncology
    • Medical Physics
    • Clinical Oncology

    Background:

    • Limited field radiotherapy techniques were historically used for adenocarcinoma treatment.
    • Understanding long-term outcomes and complications is crucial for refining treatment protocols.

    Purpose of the Study:

    • To evaluate the survival rates and patterns of failure in patients with adenocarcinoma treated with limited field radiotherapy.
    • To assess the correlation between treatment techniques, patient stage, histology, and treatment complications.

    Main Methods:

    • Retrospective analysis of 251 adenocarcinoma patients treated between 1968-1981.
    • Inclusion of detailed clinical staging, including physical exams, biopsies, and imaging.
    • Actuarial survival and disease-free survival rates calculated, with analysis of recurrence sites and complications.

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    Main Results:

    • 5- and 10-year survival rates ranged from 32% to 84% and 11% to 53%, respectively, varying by stage.
    • Local-regional failure was observed in 42% of Stage C2 patients.
    • Complications were less frequent (<8%) with multi-field or rotational plans compared to single-field techniques.

    Conclusions:

    • Limited field radiotherapy demonstrated variable efficacy depending on cancer stage.
    • Treatment technique significantly impacts complication rates, favoring multi-field or rotational plans.
    • Poorly differentiated histology was associated with decreased survival rates.