| Screening Pros and Cons |
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Informed consent form to make a decision to be tested or not with PSA. Feel free to provide input. Email us at: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Patient's information for an informed consent decision: PSA/DRE testing for prostate cancer
AGAINST TESTING STATEMENTS:
Studies that will assess the value of screening (testing with PSA
and DRE) are underway but will not be completed for 5 to 10 years.
The biggest benefit of testing is in men with a life expectancy
of 10 to 15 years. As men get older this benefit decreases.
The actual test (PSA/DRE) is usually harmless. If the results are abnormal, you might be offered a biopsy. This test can lead to detection of prostate cancer and further treatment complications.
Prostate cancer is a progressive disease with few symptoms and
many times without any symptoms, so you could have prostate cancer
without having symptoms.
The disease is more prevalent with advancing age. Men should be aware of this as early as possible to be able to make an informed decision. The age of increased risk is 50 for whites or 45 for blacks. Men who have a father or brother diagnosed with prostate cancer and African-American men are at higher risk to develop prostate cancer should be screened at age 40 or less.
Presently, 42% of men older than 50 years will have prostate cancer during their lifetime, 9.5% will have disease that causes problems and is considered clinically significant and 2.9% will die of the disease.
Prostate cancer contained within the prostate is potentially curable. Early-stage prostate cancer is usually contained within the prostate. Prostate cancer that has extended beyond the prostate, called advanced prostate cancer, is considered incurable at the present time.
At least three studies have demonstrated that early detection and
effective treatment has resulted in a survival benefit by altering the
natural course of the disease.
A blood test, called Prostate-Specific Antigen, - PSA - can detect prostate cancer. The value of this test is that by serial testing it can predict the incidence of cancer well ahead of the disease demonstrating clinical significance. PSA/DRE testing improves early detection of prostate cancer, especially in men without symptoms.
Since the inception of PSA and DRE use there has been a 32.5 %
reduction in prostate cancer mortality between 1993 and 2003. This
reduction remains unexplained.
The real value of the PSA/DRE test combination is to establish a
baseline measurement and then do periodic measurements. If the
measurements vary considerably from year to year, this warrants
investigation (variation of 0.75 ng/ml or more in PSA). A recent study
demonstrated that men with PSA velocities of more than 0.35 ng/ml per
year had a higher relative risk of prostate cancer death than men with
PSA velocity of 0.35 ng/mL per year or less (RR = 4.7, 95% CI = 1.3 to
16.5; P = .02)
Without PSA and DRE testing, a high percentage of men are diagnosed with advanced prostate cancer, incurable disease, rather than being diagnosed earlier, with potentially curable disease.
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