Second Screenings Increased Detection of Colorectal Cancer

Second Screenings Increased Detection of Colorectal CancerA recent study is changing the way doctor’s screen for colorectal cancer throughout the country, with important implications for those requiring screening for colorectal cancer in Beverly Hills.

According to the Journal of the National Cancer Institute, multiple screenings using flexible sigmoidoscopy increased the detection of colorectal cancer or advanced adenomas in women by one-fourth and by one-third in men. Although a colonoscopy offers a complete view of the colon, flexible sigmoidoscopy combined with a fecal occult blood test is still considered to be a screening test for colorectal cancers and polyps.

Endoscopic techniques have a greater sensitivity in the detection of colorectal cancer than fecal occult blood testing alone, and repeated screenings reveal a larger number of carcinomas and colorectal adenomas in comparison to only one screening. The PLCO cancer screening trial attempted to determine what time interval the repeated flexible sigmoidoscopy screenings would be most effective.

Researchers analyzed persons aged 55-74 undergoing flexible sigmoidoscopy. The participants were subsequently screened at intervals of 3 years and 5 years. The study was conducted from 1993-2001.

Among the 77,447 people participating in the study, 67,073 had a minimum of one flexible sigmoidoscopy and 39,442 had two. The study showed that the second screening increased the quantity of cancers detected by 26% in women and 34% in men. Advanced adenomas or colorectal cancers were detected in 3.8% of participants following the first screening and 4.5% after both screenings– an increase of 32%.

This research is beneficial for those who are at an increased risk for colorectal cancer in Beverly Hills. It is important to speak with your colon and rectal specialist about early detection and screening for colon cancer. In many situations, a single screening exam is not sufficient to fully examine the colon for growths, and for many people a second screening may prove beneficial.