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Can Prostate Cancer Screening Improve Men's Lives?

PSA Test: Overall Gain in Quality-of-Life Years May Not Apply to Individual Men

PSA Pluses and Minuses continued...

That gap makes it impossible to recommend for or against PSA screening for all men, says Sox, whose editorial comments accompany the de Koning report in the NEJM.

"If a significant number of men could end up losing quality life years as a result of their feelings about the kind of side effects that can happen with prostate cancer treatment, a significant number of patients also would gain quality life years by not worrying about dying of prostate cancer," Sox tells WebMD. "So you can't have a general recommendation either for or against PSA testing. You have to talk to the patient and find out what his feelings are."

PSA Decision: Case by Case

That's almost exactly the current recommendation of the American Cancer Society. Unlike the U.S. Preventive Services Task Force, which based on its own risk/benefit analysis flatly advises men not to get the test, the ACS advises men to sit down with a medical professional and discuss all the risks and all the benefits.

That's not very satisfying to men who want protection from prostate cancer, but who don't want to gamble on a test that might lead to severe side effects from unnecessary treatment.

And there's the rub. De Koning and colleagues note that in the European study, 42% of cancers detected by PSA screening were "over-diagnosed" -- that is, they never would have done harm.

"Strategies to reduce over-diagnosis would seem to be necessary before screening can be generally advocated," they write.

Until this happens, Sox recommends improving our "meager" understanding of how men feel about the quality of their lives after treatment for prostate cancer.


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