Medindia LOGIN REGISTER
Medindia
Advertisement

Virtual Colonoscopy is Used Appropriately, Says Penn Study

by Kathy Jones on April 7, 2013 at 7:32 PM
 Virtual Colonoscopy is Used Appropriately, Says Penn Study

The Centers for Medicare and Medicaid Services (CMS) halted reimbursement for so-called "virtual colonoscopy" for routine colon-cancer screening in asymptomatic patients in 2009.

This was done in part due to concerns over how this procedure, computed tomography colonography (CTC), was being used in the elderly population.

Advertisement

In the first study to examine appropriate utilization of the test among asymptomatic Medicare beneficiaries from 2007 to 2008, a research team from the Perelman School of Medicine at the University of Pennsylvania found that CTC was used appropriately and may have expanded colorectal cancer screening beyond the population screened with standard ("optical") colonoscopy. The findings, led by Hanna M. Zafar, MD, MHS, an assistant professor of Radiology, are published online in the Journal of General Internal Medicine.

CTC is a minimally invasive method of visualizing the colon and rectum, which does not require sedation, unlike during standard colonoscopies. On average, CTC costs $400 to $800, and optical colonoscopy costs $1,500 to $3,000. However, patients with focal abnormalities on CTC (defined as suspected polyps greater than or equal to 6 mm and masses) must be referred to OC for direct tissue sampling.
Advertisement

The Penn Medicine research team examined records for 10,538 asymptomatic older patients who underwent CTC compared to 160,113 similar patients who underwent optical colonoscopy. They found that the vast majority of patients who received CTC had presumed incomplete optical colonoscopies and thus were considered appropriate candidates for the virtual screening method. Furthermore, almost half of the patients studied who underwent CTC following incomplete optical colonoscopy did so on the same day as optical colonoscopy. "Given that bowel preparation is a strong barrier to screening, offering same day CTC could improve completion of screening by eliminating the need for an additional bowel preparation," said Zafar. "As such, it is reassuring that CTC following incomplete optical colonoscopy is covered by most insurance companies and CMS."

Additionally, 30 percent of the patients who underwent CTC had no history of incomplete OC but demonstrated other medically appropriate indications for screening CTC including risk of bleeding or sedation complications. Although the researchers were not able to assess through the claims data studied how many of these patients would not have been screened without the option of CTC, it does suggest that during the study period, this test may have expanded colorectal cancer screening as opposed to simply replacing optical colonoscopy. (Prior research has shown that nearly 30 percent of patients would not undergo optical colonoscopy if CTC were not available.) "Additional research is needed in this important area since approximately 40 to 50 percent of Medicare patients do not undergo any recommended method of colon cancer screening," Zafar said.

The Penn Medicine study also found lower utilization of CTC among asymptomatic non-white patients. It is not clear whether this decreased utilization is due to overall lower rates of colorectal cancer screening in this group of patients, patient preference, or diminished access to imaging technology. But previous findings indicate that minority populations are less likely to be aware of colorectal cancer screening procedures and more likely to believe that screening is only needed after symptoms develop -- both represent barriers to colorectal cancer screening compliance. "Given the higher incidence and mortality from colorectal cancer among black patients and lower rates of screening in minority patients overall, this cohort could benefit most through CTC," said Zafar.

Colorectal cancer was the third most commonly diagnosed cancer among men and women, as well as the third leading cause of cancer death for 2012 in the United States. Although it is largely preventable through colonoscopy, screening remains underutilized. In light of their findings, the study team suggests that reimbursement for screening CTC may increase overall screening rates in the elderly but could simultaneously exacerbate disparities in colorectal cancer screening.

CMS' decision to end reimbursements in 2009 was subsequently opposed by several groups such as the American Cancer Society and American College of Radiology, which both recognize CTC as a recommended screening procedure for Americans ages 65 years and older.



Source: Eurekalert
Font : A-A+

Advertisement

Advertisement
Advertisement

Recommended Readings

Latest General Health News

First Human Case of Rare Swine Flu Strain H1N2 Found in UK
Swine influenza A viruses, including subtypes H1N1, H1N2, and H3N2, are prominent among pigs and sporadically transmit to humans.
Unraveling the Mystery Respiratory Illness in US Dogs
The microorganism "is a newly identified potential disease-causing agent, possibly originating from or evolving within the dog's microbiome."
Why Red Wine Cause Headache?
Flavanol naturally present in red wine can compromise the proper metabolism of alcohol and lead to a headache.
Raw Meat Raises Antibiotic-Resistant E.Coli Risk in Dogs
To reduce bacterial risks, pet owners can switch to a non-raw diet or obtain quality raw meat for cooking before feeding dogs.
U.S. Men Die 6 Years Earlier Than Women- A Review on Life Expectancy Gap
Since 2010, the gender gap in life expectancy in the US has increased to six years because of the pandemic, accidents, opioid overdoses, injuries, and suicide.
View All
This site uses cookies to deliver our services.By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use  Ok, Got it. Close
×

Virtual Colonoscopy is Used Appropriately, Says Penn Study Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests