PMID: 7536125May 1, 1995Paper

Potential benefit of improved local tumor control in patients with prostate carcinoma

Cancer
Deborah A KubanP F Schellhammer

Abstract

In the case of prostate carcinoma, radiation therapy is a locally applied treatment modality in a malignancy known for systemic dissemination. Because significant efforts and resources currently are being consumed to improve local tumor control, failure patterns and potential curative gain deserve appropriate assessment. From 1975-1989, 647 patients with clinically localized prostate carcinoma were definitively irradiated for biopsy-proven adenocarcinoma of the prostate. Failure patterns were examined, and survival advantage based on improvement in either local or distant disease control was calculated. Distant metastatic rate and cause-specific survival analyses were used as parameters by which to compare the outcome for patients in whom local tumor control was achieved with patients who experienced local failure, thereby assessing further the importance of the effectiveness of locally applied therapy. Three hundred ninety-two (61%) patients at the time of this writing were clinically disease free. Sixty-two (10%) patients failed locally only, 133 (20%) distantly only, and 60 (9%) developed local and distant recurrent disease. Both local and distant failure rates were higher in patients with more advanced stage lesions at pres...Continue Reading

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Citations

Mar 15, 1997·International Journal of Radiation Oncology, Biology, Physics·M S AnscherM W Dewhirst
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