Virtual Versus Traditional Colonoscopy: What Are The Risks?
News reports in the past couple of days have hit on part two of the CT radiation overexposure. Before, the issue was whether certain CT devices, whether because of manufacturing, design, or technician error, provided too much radiation to patients. A secondary question was whether patients were receiving too much radiation through scans over the course of their lives (the FDA reports that the average person’s radiation exposure has doubled in the last thirty years).
Now, the question is focused on whether CT scans are a good idea for screening purposes where a patient has no indication that they have any disease—the three that have been most mentioned are whole-body CTs (to see if there is anything wrong); CT colonoscopy (to detect colon cancer), and CT scans of the heart (to detect heart disease). Most of the debate has been centered around the colonoscopy procedure.
On one side are those who believe that traditional methods—a colonoscopy, are best to detect colon cancer. Proponents (including the American College of Gastroenterology, who come out on the side of their financial interests in the question) state that CT colonoscopies are not as certain as the traditional visual colonoscopy; that removal of polyps would require a second procedure with a CT colonoscopy (versus being done at the same time in the traditional procedure), and that incidental findings on a CT scan may lead to unnecessary procedures. Additionally, repeating these scans increases patient exposure to radiation.
More CT Radiation Information
Detractors, those who support the “virtual colonoscopy” (including the American College of Radiology, who likewise come out on the side of their financial interests in the question) state that virtual colonoscopies are less invasive and more people will probably use them; that there is less chance of perforated bowel or anesthesia risks.
Even the FDA is undecided—there is a fight there about whether the procedure, which General Electric wants to have approved (it manufactures scanning equipment), should be approved (meaning GE would be able to market the virtual colonoscopy to patients and doctors). Some doctors and scientists believe the extra radiation exposure would cause actual harm, when even now between 1.5 and 2 percent of cancers are caused by CT scan radiation exposure.
As uncomfortable as the traditional method may be, it seems like the safest way to go. The problem with radiation exposure is that you don’t know how much you will have during your lifetime—a few major diseases, and your CT (and other) radiation exposure could magnify tenfold, meaning you might regret a virtual colonoscopy every few years. Additionally, the virtual colonoscopy, though perhaps effective to a degree, is not as certain as a traditional colonoscopy. And, peace of mind is a good thing.
The first federal Kugel Mesh hernia repair lawsuit began in the U.S. District Court for the District of Rhode Island, yesterday. Plaintiff John Whitfield claims that the mesh, manufactured by Davol, Inc., was defective and broke after it was implanted, causing bowel obstruction, abdominal pain, nausea, permanent bowel injuries, and necessitating additional surgery.
Today in sunny San Diego, the Judicial Panel on Multidistrict Litigation (JPML) is hearing plaintiffs’ requests (see our
The results of a new study are out, which show the dangers Zocor in high doses or in conjunction with other drugs. Zocor is indicated as one component of multiple risk factor intervention for people at significantly increased risk of atherosclerotic vascular disease due to hypercholesterolemia. Evidence shows that high levels of Zocor, more so than similar cholesterol-reducing drugs (statins), can cause myopathy and rhabdomyolysis, which can cause severe kidney damage, kidney failure, and death.
First the background: the DePuy ASR hip implant is used for hip resurfacing (which is apparently not an issue), and more traditional hip replacement, which is at issue. The device is a metal-on-metal ball and socket, which can cause metal debris early in the life of the implant. That metal debris causes inflammation, and can lead to damaged muscles and soft tissue. The end result is that a very expensive and painful replacement surgery intended to last about 15 years ends up needing revision within two or three years.
The New Jersey Superior Court Case (Middlesex County) of Baker v. AstraZeneca Pharmaceuticals LP is now focusing on the drug manufacturer’s advertising strategy. The plaintiff in that case is alleging that he should have been better warned about the risks for weight gain and developing diabetes.
Time to wake up and face the week! Here are the stories we’re following: