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Computerized tool helps predict outcome of treatment for early stage prostate cancer

NEW YORK, September 11, 2001 - Researchers at Memorial Sloan-Kettering Cancer Center have pioneered the use of computerized devices to help patients and their physicians decide among the major treatment choices for early stage prostate cancer. Such tools, called nomograms, have been developed to predict outcomes for surgery and radiation therapy, and now, brachytherapy (radioactive seed implantations) for early stage prostate cancer.

In a retrospective analysis of prostate cancer patients treated with brachytherapy between 1992 and 2000, researchers found that the nomogram offers about 66% accuracy in predicting five-year prognosis following the treatment. According to the results of the study, which are published in the September issue of Urology, 80 percent of patients remained free of disease recurrence five years after seed implantation.

"The pretreatment nomogram is useful to physicians and patients in estimating how successful brachytherapy will be based on individual factors such as PSA levels, Gleason score, and the stage of the patient's disease," said Michael Kattan, PhD, a researcher at Memorial Sloan-Kettering and lead author of the study. "Rather than relying on general risk groups of patient populations who share similar characteristics, nomograms provide specific information that will help a patient decide which treatment option for localized prostate cancer will offer him the best prognosis."

The study authors have facilitated the computations of all three nomograms by compiling the statistical aids into a palm-based software application called Prostogram, which is available to physicians free of charge a http://www.nomograms.org .

The brachytherapy nomogram was developed using information from the medical records of 920 patients treated at Memorial Sloan-Kettering Mercy Medical Center in Rockville Centre, New York. Researchers used data from more than 2,000 other patients t
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Contact: Esther Carver
carvere@mskcc.org
212-639-3573
Memorial Sloan-Kettering Cancer Center
11-Sep-2001


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