Featured Research

from universities, journals, and other organizations

Routine evaluation of prostate size not as effective in cancer screening, study finds

Date:
November 14, 2009
Source:
Mayo Clinic
Summary:
New research studied the association between prostate-specific antigen levels and prostate size and found that routine annual evaluation of prostate growth is not necessarily a predictor for the development of prostate cancer. However, the study suggests that if a man's PSA level is rising quickly, a prostate biopsy is reasonable to determine if he has prostate cancer.

New Mayo Clinic research studied the association between prostate-specific antigen (PSA) levels and prostate size and found that routine annual evaluation of prostate growth is not necessarily a predictor for the development of prostate cancer. However the study suggests that if a man's PSA level is rising quickly, a prostate biopsy is reasonable to determine if he has prostate cancer.

These findings are being presented this week at the North Central Section of the American Urological Association in Scottsdale, Ariz.

These Mayo Clinic study findings were based on data in the Olmsted County Study of Urinary Health Status among Men, a large cohort study of men living in Olmsted County, Minn. Researchers randomly selected 616 men between the ages of 40 and 79 who did not have prostate disease. Patients participated in examinations every two years for 17 years, which included PSA and prostate volume measurements using ultrasound, to determine changes in prostate disease.

"One of the major advantages of this large cohort study is that the men have participated in this study for over 17 years," says Rodney Breau, M.D., a Mayo Clinic urologic oncology fellow who led the study. Because of this, we have the ability to look at long-term relationships between prostate growth, change in PSA and development of prostate cancer."

Of the 616 men, 58 (9.4 percent) developed prostate cancer. Men who were diagnosed with prostate cancer had a faster rise in PSA levels (6 percent/year) compared to men who were not diagnosed with cancer (3.3 percent/year). However, the increase in prostate size was similar between these two groups (median change of 2.2 percent/year).

PSA is a substance produced in the prostate gland. Normally, a small amount of PSA enters the bloodstream. A higher amount of PSA or an abrupt rise in PSA levels can indicate a problem, possibly cancer.

"The question we're trying to answer is, if we see a man with a rising PSA level, could this change in PSA be explained by a proportional increase in prostate size?" says Dr. Breau. "Our data indicate that men with or without prostate cancer have similar rates of prostate growth. If a man's PSA is quickly rising, he likely deserves a prostate biopsy to determine if he has prostate cancer. Assessment of change in prostate size should not influence the decision to biopsy."

Other Mayo Clinic researchers involved in this study include: R. Jeffrey Karnes, M.D.; Debra Jacobson; Michaela McGree; Steven Jacobsen, M.D., Ph.D.; Ajay Nehra, M.D.; Michael Lieber, M.D.; and Jennifer St. Sauver, Ph.D.


Story Source:

The above story is based on materials provided by Mayo Clinic. Note: Materials may be edited for content and length.


Cite This Page:

Mayo Clinic. "Routine evaluation of prostate size not as effective in cancer screening, study finds." ScienceDaily. ScienceDaily, 14 November 2009. <www.sciencedaily.com/releases/2009/11/091110112442.htm>.
Mayo Clinic. (2009, November 14). Routine evaluation of prostate size not as effective in cancer screening, study finds. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2009/11/091110112442.htm
Mayo Clinic. "Routine evaluation of prostate size not as effective in cancer screening, study finds." ScienceDaily. www.sciencedaily.com/releases/2009/11/091110112442.htm (accessed September 22, 2014).

Share This



More Health & Medicine News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
Powered by NewsLook.com
Changes Found In Brain After One Dose Of Antidepressants

Changes Found In Brain After One Dose Of Antidepressants

Newsy (Sep. 19, 2014) A study suggest antidepressants can kick in much sooner than previously thought. Video provided by Newsy
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins