Let's talk colonoscopies. To answer your probing questions, we turned to two specialists who say that yes, the nasty prep is worth the hassle.
What is a colonoscopy?
A screening test to prevent or find early cancers. One in five Minnesotans age 50 and older has at least one colon polyp, each of which has a 10 percent chance of turning into cancer. Taking polyps out can prevent up to 90 percent of colorectal cancer. The patient is sedated, then the doctor uses a flexible tube with a camera and light on it, called a colonoscope, to examine the rectum and inside the full length of the colon. If anything suspicious is found, the doctor can take a sample for biopsy.
Why is 50 the magical age for getting the first one?
Fifty is the starting age for people of average risk, taking into account the cost of screening and weighing risks vs. benefits. Studies show that age 50 best balances these factors. African-Americans and American Indians should start at age 45, due to higher risk.
What percentage of adults 50 and older actually get screened?
In Minnesota, 72 percent have had some kind of screening test. Nationally, about 50 percent.
What's the most common excuse for not getting one, and how do you respond?
People hear that the prep is unpleasant. They fear pain. Some fear that something might be found. In reality, most people tolerate the prep very well and sleep through the procedure.
How long do we have to wait for a better prep scenario, not that we don't love magnesium citrate?
There already are some improvements to make the liquids more palatable. The objective is to clean out the colon so you can see everything well. This takes volume. One new company has developed a machine that uses water to prep the colon, but that's not currently covered by insurance.