Colonoscopies Not Perfect in Stopping Colorectal Cancer Deaths

The percentage of colorectal cancer deaths prevented by colonoscopy may be overestimated. While still very effective in preventing colorectal cancer and deaths from the disease, limits of the test may be larger than previously thought.  Patients need to know that having colonoscopy does not guarantee that they won’t get colorectal cancer. Experts now say that screening…  Read More

Finding Polyps Missed During Colonoscopies for Lynch Syndrome

Lynch syndrome (also known as hereditary nonpolyposis colon cancer) greatly increases the risk for colon and rectal cancer. People with the gene have about an 8 in 10 chance of getting colon cancer during their lives. Because Lynch cancers develop quickly and grow rapidly, it’s important to monitor people who carry the genes closely with colonoscopy…  Read More

Positive FOBT Should Trigger Colonoscopy

Even if a patient had a previous clear colonoscopy or all polyps seen on that exam were removed, a new positive fecal occult blood test (FOBT) calls for a repeat colonoscopy. After 21,600 clear colonoscopies done at the Veterans Administration Medical Center in Phoenix, 57 patients needed a second colonoscopy after they had a positive FOBT…  Read More

Improved Colonoscope Finds More Polyps

Doctors using a new optical device mounted on the end of their scopes, found significantly more polyps in the colon during routine colonoscopies.  Called the Third Eye Retroscope™, it lets gastroenterologists see both forward and backward as the scope moves through the colon. Although colonoscopy is extremely sensitive and will discover most colon polyps during an…  Read More

New Technique Provides Microscopic Images of Suspicious Polyps During Colonoscopy

News from Digestive Disease Week 2008 A tiny microscope, less than one-sixteenth of an inch, attached to the end of the instrument used for a colonoscopy can provide magnified pictures of cells and small blood vessels in suspicious lesions allowing doctors to make on-the-spot decisions about whether a polyp is benign or precancerous. The technique —…  Read More