Featured Research

from universities, journals, and other organizations

Patients with irritable bowel syndrome not more likely to develop polyps, colon cancer

Date:
March 22, 2010
Source:
University of Michigan Health System
Summary:
Patients with irritable bowel syndrome are at no greater risk of having polyps, colon cancer or inflammatory bowel diseases than healthy people undergoing colonoscopies, according to a new study.

Patients with irritable bowel syndrome are at no greater risk of having polyps, colon cancer or inflammatory bowel diseases than healthy people undergoing colonoscopies, according to new research published in the American Journal of Gastroenterology.

Related Articles


"Patients and doctors get nervous about the symptoms of irritable bowel syndrome (IBS)," says William D. Chey, M.D., professor of Internal Medicine at the University of Michigan Medical School. "They think the symptoms represent something more sinister."

"This study should reassure doctors and patients that typical IBS symptoms are not indicators of a more serious disease," he adds.

Chey was the lead author on the study, the largest prospective evaluation of the results of colonoscopies in patients with irritable bowel syndrome.

IBS symptoms include recurrent episodes of abdominal pain or cramping in connection with altered bowel habits. The condition affects 10 to 20 percent of the U.S. population and is more common among women than men. Many of those afflicted never seek treatment.

IBS patients often undergo colonoscopies because physicians are particularly concerned about missing colorectal cancer or inflammatory bowel diseases like ulcerative colitis or Crohn's disease, Chey says. Roughly a quarter of all colonoscopies performed in the U.S. are for IBS-related symptoms.

This research shows that it is unnecessary to order colonoscopies for IBS patients, unless they show other alarming symptoms like unexplained weight loss or anemia, bleeding from the GI tract, or have a family history of colon cancer, inflammatory bowel disease or celiac disease, says Chey, who also is director of U-M's Gastrointestinal Physiology Laboratory and the Michigan Bowel Control Program.

"Lay people and doctors overuse colonoscopies, which are very expensive procedures, in patients with typical IBS symptoms and no alarm features. Of course, patients over the age of 50 years or who have alarm features should undergo colonoscopy to screen for polyps and colon cancer." Chey says.

Chey's research also showed that a small percentage of IBS patients older than 35 (2.5%) had an unusual disease called microscopic colitis. Microscopic colitis can masquerade as IBS in patients with diarrhea and is important to diagnose because it is treated differently than IBS, he says. March is colorectal cancer awareness month. Not counting skin cancers, colorectal cancer is the third most common cancer found in men and women in this country. The risk of a person having colorectal cancer in their lifetime is about 1 in 19. Go to U-M's Cancer Center site for more information about colorectal cancer.


Story Source:

The above story is based on materials provided by University of Michigan Health System. The original article was written by Mary F. Masson. Note: Materials may be edited for content and length.


Journal Reference:

  1. Chey et al. The Yield of Colonoscopy in Patients With Non-Constipated Irritable Bowel Syndrome: Results From a Prospective, Controlled US Trial. American Journal of Gastroenterology, 2010; DOI: 10.1038/ajg.2010.55

Cite This Page:

University of Michigan Health System. "Patients with irritable bowel syndrome not more likely to develop polyps, colon cancer." ScienceDaily. ScienceDaily, 22 March 2010. <www.sciencedaily.com/releases/2010/03/100309161842.htm>.
University of Michigan Health System. (2010, March 22). Patients with irritable bowel syndrome not more likely to develop polyps, colon cancer. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2010/03/100309161842.htm
University of Michigan Health System. "Patients with irritable bowel syndrome not more likely to develop polyps, colon cancer." ScienceDaily. www.sciencedaily.com/releases/2010/03/100309161842.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

AFP (Dec. 17, 2014) Border closures, quarantines and crop losses in West African nations battling the Ebola virus could lead to as many as one million people going hungry, UN food agencies said on Wednesday. Duration: 00:52 Video provided by AFP
Powered by NewsLook.com
When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
Why Your Boss Should Let You Sleep In

Why Your Boss Should Let You Sleep In

Newsy (Dec. 17, 2014) According to research out of the University of Pennsylvania, waking up for work is the biggest factor that causes Americans to lose sleep. Video provided by Newsy
Powered by NewsLook.com
Flu Outbreak Closing Schools in Ohio

Flu Outbreak Closing Schools in Ohio

AP (Dec. 17, 2014) A wave of flu illnesses has forced some Ohio schools to shut down over the past week. State officials confirmed one pediatric flu-related death, a 15-year-old girl in southern Ohio. (Dec. 17) Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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