PSA Kinetics Is Not A Sufficient Indication For The Treatment Of Prostate Cancer

PSA Kinetics Is Not A Sufficient Indication For The Treatment Of Prostate Cancer.
A approach that urologists had hoped would prepare it credible to distinguish men with prostate cancer who need treatment from those who would only need watchful waiting didn't function well, researchers report. The technique, called PSA kinetics, measures changes in the deserve at which the prostate gland produces a protein called prostate-specific antigen. A significant enhancement in PSA kinetics, measured by the time during which PSA production doubles or increases at a fast rate, is supposed to indicate the need for treatment, by radiation therapy or surgery.

PSA kinetics has covet been used to measure the effectiveness of treatment. A number of cancer centers have started to use it as a reasonable method of distinguishing aggressive cancers that require treatment from those that are so slow-growing that they can safely be left alone.

Recent studies indicating that many men with slow-growing prostate cancers be subjected to unnecessary treatment have given stress to the search for such a tool, especially considering that side effects of treatment can include incontinence and impotence. But the ponder indicates that "PSA kinetics doesn't seem to be enough to show you who you should follow and who you should treat," said Dr Ashley E Ross, a urology dwelling at the Johns Hopkins University Brady Urological Institute, and move author of a report on the technique published online May 3 in the Journal of Clinical Oncology.

The promulgate describes the results of PSA kinetics measurements of 290 men with low-grade prostate cancer - the amicable that often doesn't require treatment - for an average of 2,9 years. The results of PSA tests were compared with biopsies - pack samples - that regular the progression of the cancers.

The trial is part of a study, under supervision of Dr H Ballentine Carter, kingpin of the division of adult urology at the Brady Urological Institute, that began in 1994. Men in the whirl had PSA tests every six months and biopsies every year.