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Task Force to Men: Don't Get PSA Test Sun Oct 09, 2011 11:09 am
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Task Force to Men: Don't Get PSA Test


Oct. 7, 2011 -- Men should just say "no" to prostate cancer screening with the common PSA blood test, according to draft guidelines from the U.S. Preventive Services Task Force.

About a third of men over age 40, and about half of men age 65 to 79, get regular blood tests for prostate specific antigen, or PSA.

Rising PSA levels are an early sign of prostate cancer, but the test gives a false cancer signal up to 80% of the time. Moreover, not all PSA-detected prostate cancers are dangerous.

"The common perception that PSA-based early detection of prostate cancer saves lives is simply not supported by the scientific evidence," task force co-vice chair Michael L. LeFevre, MD, MSPH, professor of family and community medicine at the University of Missouri, tells WebMD.

The task force's draft statement, leaked to the press a week early, will be open for public comment next week before becoming the official recommendation of the U.S. government's top expert guideline panel.

The statement already is drawing harsh criticism, particularly from the American Urological Association.

"It is our feeling that, when interpreted appropriately, the PSA test provides important information," AUA President Sushil S. Lacy, MD, says in a news release. "Until there is a better widespread test for this potentially devastating disease, the [task force] -- by disparaging the test -- is doing a great disservice to the men worldwide who may benefit from the PSA test."

Criticism also comes from biostatistics expert Ruth Etzioni, PhD, of the Fred Hutchinson Research Center. Etzioni has served on prostate-cancer screening guidelines panels of the AUA, the American Cancer Society, and the National Comprehensive Cancer Network.

"The task force is oversimplifying a complex series of [clinical trial] results," Etzioni tells WebMD. "I think there is real evidence of benefit for PSA screening. Death rates from prostate cancer have gone down … It is hard for me to believe all that is due to better treatment. "But Len Lichtenfeld, MD, deputy chief medical officer for the American Cancer Society, says the proposed guidelines reflect the hard reality that PSA testing does not appear to save lives.

"In the American Cancer Society's 2010 guidelines, we said we were uncertain: The evidence is not convincing that PSA testing works," Lichtenfeld tells WebMD. "We feel the task force came to a reasonable conclusion."

Just as women once were told that hormone replacement therapy would prevent heart disease -- until scientific studies showed that it did not -- Lichtenfeld says current evidence strongly suggests that doctors were wrong to tell men that PSA testing would protect them from dying from prostate cancer.

"Men need to know the truth," Lichtenfeld says. "We have gone through 20 years where we have had strong voices telling us PSA testing works. So there is a huge component of men who believe PSA testing has saved their lives. Now, when we say it wasn't necessarily so, that becomes a difficult conversation."

http://www.m.webmd.com/a-to-z-guides/news/20111007/task-force-men-dont-get-psa-test?src=RSS_PUBLIC
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Task Force to Men: Don't Get PSA Test Sun Oct 09, 2011 11:09 am
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