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Nonsurgical Prostate Cancer Treatment Yields 98% Survival Rate in Younger Men

Nonsurgical Prostate Cancer Treatment Yields 98% Survival Rate in Younger Men

A study that evaluated 76 patients, aged 48 to 62
years, who underwent prostate brachytherapy between 1995 and 1999 using either
palladium-103 or iodine-125 seed implants, reported that more than 98% achieved
5-year survival. The study report was published in a recent issue of the
International Journal of Radiation Oncology, Biology, and Physics

"This study reinforces the notion that brachytherapy is often the
optimal treatment for early-stage prostate cancer in men under 65," said
researcher Gregory Merrick, MD, of the Schiffler Cancer Center in Wheeling, WV.
"These are encouraging findings because it shows younger men that they can
survive cancer with a significantly lower incidence of side effects."
Common side effects associated with prostate cancer treatment are incontinence
and erectile dysfunction.

Study Protocol

All 76 patients underwent transperineal ultrasound-guided prostate
brachytherapy; 47 patients received only brachytherapy, and 29 received
moderate-dose external-beam radiation followed by brachytherapy. None of the
patients received hormonal manipulation as part of their treatment.

Patients were stratified according to disease level as determined by clinical
T stage, prostate-specific antigen (PSA) level, and Gleason score. Low-risk
disease was defined as exhibiting all three favorable prognostic indicators,
intermediate-risk disease as exhibiting one unfavorable indicator, and high-risk
disease as exhibiting two or more unfavorable indicators.

After treatment, patients were screened every 3 to 6 months for disease
recurrence with digital rectal examinations and PSA tests. Among patients with
low-, medium-, and high-risk disease, 97.7%, 100%, and 100%, respectively,
experienced biochemical freedom from failure 37 months after treatment. Of the
entire group, 98.7% showed no evidence of disease at 37-month follow-up.

Effect of Age on Brachytherapy Outcomes


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