Tag Archive for: colonoscopy

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Study Finds Risk-Stratified Colorectal Cancer Screening Is Feasible and Cost-Effective

Colorectal cancer (CRC) is the third most common cancer diagnosis and the second most common cause of cancer death globally. The American Cancer Society estimates that there will be 106,180 new colon cancer cases and 44,850 new rectal cancer cases in the United States in 2022. Early detection and consistent screening reduce CRC incidence and mortality. A recent randomized controlled trial that analyzed the feasibility, adherence, yield, and related costs of various screening modalities found that a risk-adapted approach is feasible and cost-favorable for population-based screening. 

Current guidelines recommend standardized screening plans for specific age groups, with colonoscopy recommended every 10 years and a fecal immunochemical test (FIT) between 1-3 years. Implementation of risk-stratified screening can potentially allow for more frequent screening and earlier detection of CRC at a population level. This would especially be beneficial for individuals who are at higher risk of CRC. Additionally, risk-stratified screening can help health practitioners detect and introduce plans for CRC treatment at earlier stages.

The National Health Service Breast Screening Programme (NHSBSP) recently investigated the potential benefits, costs, and effectiveness of risk-stratified breast cancer screening with BC-Predict, a platform that collects self-reported risk factor information for breast cancer, analyzes the self-reported information, and invites high-risk or moderate-risk women to a conversation about prevention and early detection options. BC-Predict was found to have the potential to reduce breast cancer mortality due to early screening. It also reduced screening in women who are at lower risk, minimizing the number of false positive test results in lower-risk women. The results from this analysis are pertinent to risk-stratified screening for CRC and support the implementation of a risk-adapted approach in CRC screening.

What Did the Study Find?

More than 19,000 participants in the TARGET-C trial conducted in six cities in China were placed into one of the screening arms in a 1:2:2 ratio: 

  • One-time colonoscopy (n=3,883)
  • Annual fecal immunochemical test (FIT) (n=7,793)
  • Annual risk-adapted screening (n=7,697).

The detection rate of advanced colorectal neoplasia, CRC, and advanced precancerous lesions were the main outcomes that were monitored. The follow-up to trace the rate of advanced colorectal neoplasia for all participants was conducted over a 3-year study period. 

Over three screening rounds, the participation rates for colonoscopy, FIT, and risk-adapted screening arms were 42.4%, 99.3%, and 89.2%, respectively. The costs to the for detecting one advanced neoplasm, presented as both Chinese Yuan (CNY) and US dollar, using a package payment format were:

  • CNY6,928 ($1,004) for one-time colonoscopy
  • CNY5,821 ($844) for annual fecal immunochemical test (FIT)
  • CNY6,694 ($970) for annual risk-adapted screening.

These findings underscore the value of a risk-adapted approach for CRC screening for feasibility and cost-effectiveness, as well as for allowing for more frequent screening and earlier detection of CRC for individuals with a high or moderate risk for CRC.

 

Sahar Alam is a Colorectal Cancer Prevention Intern with the Colon Cancer Foundation.

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Dr. Shahnaz Sultan: Pre-Endoscopy COVID-19 Testing Led to Disparities

The Colon Cancer Foundation had the opportunity to speak with Dr. Shahnaz Sultan, MD, MHSC, AGAF, about her research team’s findings that pandemic-related pre-procedure COVID-19 testing caused higher rates of endoscopy cancellations among patients from marginalized populations. A Professor of Medicine in the Division of Gastroenterology, Hepatology, and Nutrition and the Program Director for the Gastroenterology Fellowship Training Program at the University of Minnesota, Dr. Sultan’s research interests are focused on reducing colorectal cancer morbidity and mortality by improving adherence and quality of colonoscopy.

Q: What is the main takeaway you want people to understand from your research?

One of the most important things we want to emphasize is that colorectal cancer [CRC] is a very preventable cancer and there is a lot of high-quality evidence that shows that screening for CRC actually leads to a reduction in associated mortality. We really need to think about CRC screening along a continuum—whether you are doing stool-based testing or you’re getting a colonoscopy, it’s a multi-step process, and at every step, we need to be cognizant about reducing barriers and helping patients complete their CRC screening tests. Adding another step that patients have to complete prior to colonoscopy, such as pre-procedure SARS-CoV2 testing, in addition to completing their bowel prep, following dietary guidelines, finding transportation, and coming in to get a colonoscopy, really makes it that much more challenging. Pre-procedure testing serves as one more step and one more possible barrier in terms of getting people up-to-date with their screening. 

Q: As you were conducting your research, were there any findings that surprised you?

Our objective here was to understand the impact of pre-procedure COVID-19 testing—we wanted to see the magnitude of the impact and who was specifically affected by this additional requirement. When we looked at the canceled outpatient endoscopy procedures in our cohort from March 2021 to September 2021, we were surprised that the overall cancellation rate was so high in terms of getting people to complete their colonoscopy. Among the 574 cancellations, a little under 10% were due to pre-procedure COVID-19 testing requirements, and a good proportion of the remainder, about 51%, were patient-initiated cancellations. There were a lot of additional factors that were potentially holding people back from CRC screening. Additionally, we were surprised that pre-procedure testing was disproportionately affecting certain populations. Persons who self-identified as Black, American Indian, Alaskan Native, or Hispanic were more likely to have testing-related cancellations. 

Dr. Shahnaz Sultan

Q: Of the patients who canceled their colonoscopy, do we know if they went for an alternate form of testing for colorectal cancer, such as stool-based testing?

That’s an interesting question! We do not have that health data within our health system, but you bring up a good point. During the pandemic, a lot of other health systems were shifting gears from colonoscopy to stool-based testing and using programmatic efforts to directly reach out to patients to make sure they were getting some form of CRC screening. 

Q: Healthcare challenges, such as the COVID-19 pandemic, have demonstrated to significantly disrupt CRC screening procedures and participation, especially for medically underserved communities. What steps can be taken or what policies can be implemented in the future to support CRC screening participation and prevent significant disruptions to CRC screening?                                              

There is a lot of ongoing research to understand different barriers we can address or different interventions we can take to improve screening at the population level. We really need a multifaceted or multi-pronged approach to screening. We really need to think about interventions that not only focus on patients, but we also need to target providers, health systems, and community leaders, and think about national and federal policy decisions. I think there are a lot of opportunities to decrease barriers at different levels in terms of getting people to be more up-to-date with screening at a population level.

In terms of policy, one of the things that we have been able to fix recently is this loophole that existed in the past where if a test was done for screening purposes, but polyps were removed, then it was no longer counted as a screening test, and that incurred copayments and additional burdens on patients. I think that has been a real coup for us in the gastroenterology community and overall in terms of helping to support the care of our patients. Also, I think there are a lot of opportunities at the national level to support programmatic efforts to improve screening for populations that are underinsured or don’t have access to care, and I think we need to do more outreach and find ways to include health educators and patient navigators. We need to make sure we are educating patients about the importance of screening and helping address financial or logistical barriers that might serve as additional challenges for patients to overcome.

Continued on Page 2.

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Computer-Assisted Colonoscopy Better at Detecting Precancerous Polyps 

Colonoscopy is the most effective test for colorectal cancer (CRC) screening and prevention. This procedure minimizes the incidence and mortality of colorectal cancer through early detection. During a colonoscopy, a physician inserts, and threads a flexible tube with a tiny camera called a colonoscope into the rectum and through the entire colon, or large intestine. This helps identify abnormal growths and excise any polyps which can then be sent for diagnosis.

However, research has shown that despite being the gold-standard for CRC screening, 23-30% of adenomas are overlooked and missed during a traditional colonoscopy, the success of which can vary depending on operator skills.

“Colorectal cancer is the second leading cause of cancer-related deaths in the United States and it is one of the few cancers that can be prevented if caught early,” said Aasma Shaukat, MD, MPH at NYU Grossman School of Medicine and the Robert M. and Mary H. Glickman Professor of Medicine and Gastroenterology and Director of Outcomes Research for the Division of Gastroenterology and Hepatology. “Our mission remains to improve and enhance the quality and efficacy of the colonoscopy across the board to provide the best care for patients.”  

In order to improve the efficiency and efficacy of colonoscopies, Dr. Shaukat and her team have developed an artificial intelligence (AI) platform to assist endoscopists. The findings of their  prospective, randomized, multicenter collaborative study to test the AI platform were recently published in the journal Gastroenterology. Between January and September 2021, twenty-two skilled, board-certified gastroenterologists performed colonoscopies on 1,440 patients. The patients were randomized to receive a traditional colonoscopy or a colonoscopy with computer-aided detection software —the software detects colorectal polyps during high-definition white-light colonoscopy procedures. This device can identify potential polyps and identify areas of concern, refining the results of the procedure in real-time. 

The researchers found that using AI during a screening colonoscopy increased the adenoma per colonoscopy rate by 22%: from 0.82 to 1.05. This evidence indicates that AI can be an effective and efficient tool for gastroenterologists and endoscopists to reduce the number of overlooked polyps left behind in the colon, many of which can be precancerous. 

Dr. Shaukat states, “Our findings add to the growing amount of literature that shows using computer-aided technology during an endoscopy procedure can improve the quality of exams performed and improve outcomes for our patients. Several software technologies are currently available for clinicians and incorporating the use of these resources will only enhance the care we provide our patients and improve the quality of exams we as physicians are able to perform.”

Sahar Alam is a Colorectal Cancer Prevention intern with the Colon Cancer Foundation.

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Golf Clubs, Colonoscopies, and Colorectal Cancer Awareness with Suzanne Miller

Mom, wife, realtor, runner, cellist, and colon cancer survivor for five and a half years. Suzanne Miller was taken aback when she was diagnosed with Stage I colon cancer at the age of 40. Colorectal cancer screenings start at 45 years for average-risk adults. She was in good health, trained for marathons, and ate well. Luckily, she was able to undergo surgery on November 18, 2016, to remove the cancer. 

Suzanne realized she aspired to turn this event in her life into something good rather than dwelling on the fact that she had cancer. Since her surgery, on the 18th of each month, she spreads awareness by posting on Instagram and Facebook to remind individuals to “keep their rear in the clear.” Everyone who is over 45, under 45 with symptoms, or has a family history of colon or rectal cancer should get screened for colorectal cancer. Those with a family history of colorectal cancer should start screenings at 40 years or 10 years prior to the earliest diagnosis age in their family.

Survivor and Colon Cancer Awareness Advocate

Suzanne came across the Colon Cancer Foundation (CCF) while she was researching for a marathon to run in New York while raising money for a charity. She reached out to the Foundation and planned to run in the 2020 marathon, but it was canceled due to the COVID-19 pandemic. That didn’t dampen Suzanne’s spirit. She completed the marathon in her hometown and raised the money with support from her friends and family members who participated in the run. She looks forward to running again in the 2023 Colon Cancer Challenge.

This past February, as a CCF Champion, Suzanne and her husband were invited to attend the Cologuard Classic in Tucson, Arizona. She represented CCF and was able to meet 90 other like-minded individuals who shared her passion to make a difference and prevent early onset of colon cancer. Inspired to raise money and awareness in her hometown, Suzanne partnered with her husband’s golf club to hold a fundraising golf tournament on May 16, 2022. She was supported in her efforts by her friend, a 10-year colon cancer survivor who also works to spread colorectal cancer awareness. The event had 10 sponsors, 13 teams, and 20 hole sponsors that covered most of the costs. Half of the profits will go to their local nonprofit, CRC Life, and the other half will go to CCF.

Suzanne emphasizes that people need to be more comfortable discussing colon cancer, as they do other topics. Ever since she began raising awareness on social media, Suzanne has received messages from individuals when they received a colonoscopy, got a polyp removed, or discovered they have a family history of colon cancer. Through her experience as a young, healthy woman diagnosed with colon cancer, she brings attention to the fact that cancer does not discriminate. She always tells individuals to remind their friends and family to get a colonoscopy. “Even having one person find out that they do not have cancer is a win,” she says. Suzanne loves that we live in a world where we can speak our mind, while being kind and courteous, and have people that listen and don’t discount the matter at hand. 

 

Kenadi Kaewmanaprasert is an intern with the Colon Cancer Foundation.

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