Poor Knowledge of Colorectal Cancer Screening and Surveillance Guidelines in a National Cohort of Digestive Disease Specialists

A mobile app to improve adherence to colorectal cancer screening and post polypectomy surveillance guidelines

BACKGROUND

Despite significant advances in prevention and early detection, colorectal cancer (CRC) is a leading cause of cancer mortality worldwide. Inadequate adherence and/or lack of knowledge of guidelines have shown to prevent adequate screening and surveillance recommendations and hinder effective screening programs.

OBJECTIVE

Evaluate the implementation and real-world impact of a mobile app designed to optimize CRC screening and surveillance in accordance to recently updated guidelines.

METHODS

A mobile app including ergonomic algorithms integrating all pertinent guideline information was created by a group of experts. Data were collected from Catalonia healthcare professionals using the app between February 2023 and May 2024. Users' characteristics, consultation types, and patient data were analyzed to assess app's implementation, usage patterns, and impact on CRC screening and surveillance outcomes.

RESULTS

A total of 12,481 consultations were recorded; 3,054 (24.4%) screening and 9,427 (75.6%) post-polypectomy surveillance consultations. The app was increasingly and repeatedly used by professionals during the study period (72% retention rate). Among screening consultations, 2,082 (68.2%) patients were classified as average risk, suggesting the use of fecal occult blood test (FOBT) instead of colonoscopy. Among surveillance consultations, the app advised deferring follow-up colonoscopies and using FOBT instead in 4,748 (50%) patients based on negative index colonoscopy or the presence of low-risk polyps. Standard surveillance with colonoscopy at 3 years was recommended for 3,224 (34.1%) patients and intensive surveillance, requiring a colonoscopy at 1 year, was indicated for 749 (7.9%) patients.

CONCLUSIONS

A CRC screening and surveillance mobile app showed remarkable acceptance and uptake among healthcare professionals. Proper implementation of updated guidelines aided by the use of the app could significantly reduce the number of unnecessary screening and post-polypectomy surveillance colonoscopies, as well as help identifying high risk patients who require intensive surveillance.

CLINICAL TRIAL

Not applicable.

Usefulness of a Digital Tool to Improve Methodology and Reporting of Breath Tests for Small Intestinal Bacterial Overgrowth

GOALS

We aimed to determine if the use of a web-based digital tool could improve methodology and reporting of breath tests (BT).

BACKGROUND

Although BT represent a noninvasive and low-cost tool for the diagnosis of small intestinal bacterial overgrowth (SIBO), lack of standardization and poor test performance have been described.

METHODS

We performed a retrospective analysis of a consecutive series of BT reports from 8 different gastroenterology units during the period April 2024 to July 2024. Data from the BT reports was extracted, masked, and uploaded in a digital tool that supports the entire breath test process and creates a report. Three experts in SIBO who were blinded for the test interpretation determined a diagnosis for each patient and delineated a total of 12 quality items that considered relevant to be included in a BT report. The main outcomes of the study were accuracy (ie, proportion of correct diagnoses) and quality of BT reports.

RESULTS

A total of 210 BT were analyzed; the type of substrate was informed in 187 (89.0%) BT and lactulose was used in most of the studies (162/187, 86.6%). Most tests measured only hydrogen (89.5%) and 38 (18.1%) extended the BT for <90 minutes. SIBO was diagnosed in 92 (43.8%) and 79 (37.6%) patients in the original BT report and the digital tool report, respectively. As compared with the diagnosis by the expert gastroenterologists and current guidelines, the original report was accurate in 182 (86.6%) patients and the digital tool report in 210 (100%) patients (P<0.0001). Regarding quality of reporting, the original BT report had a median of 5 (3 to 8) items included and the digital tool report described a median of 9 (7 to 11) items (P<0.0001).

CONCLUSIONS

Breath tests methodology and interpretation for the diagnosis of SIBO are heterogenous and do not comply with current guidelines. The use of a web-based digital tool specifically developed to assist the entire BT process appears to improve accuracy and quality of reports.

Colorectal Cancer Prevention: Is Chat Generative Pretrained Transformer (Chat GPT) ready to Assist Physicians in Determining Appropriate Screening and Surveillance Recommendations?

OBJECTIVE

To determine whether a publicly available advanced language model could help determine appropriate colorectal cancer (CRC) screening and surveillance recommendations.

BACKGROUND

Poor physician knowledge or inability to accurately recall recommendations might affect adherence to CRC screening guidelines. Adoption of newer technologies can help improve the delivery of such preventive care services.

METHODS

An assessment with 10 multiple choice questions, including 5 CRC screening and 5 CRC surveillance clinical vignettes, was inputted into chat generative pretrained transformer (ChatGPT) 3.5 in 4 separate sessions. Responses were recorded and screened for accuracy to determine the reliability of this tool. The mean number of correct answers was then compared against a control group of gastroenterologists and colorectal surgeons answering the same questions with and without the help of a previously validated CRC screening mobile app.

RESULTS

The average overall performance of ChatGPT was 45%. The mean number of correct answers was 2.75 (95% CI: 2.26-3.24), 1.75 (95% CI: 1.26-2.24), and 4.5 (95% CI: 3.93-5.07) for screening, surveillance, and total questions, respectively. ChatGPT showed inconsistency and gave a different answer in 4 questions among the different sessions. A total of 238 physicians also responded to the assessment; 123 (51.7%) without and 115 (48.3%) with the mobile app. The mean number of total correct answers of ChatGPT was significantly lower than those of physicians without [5.62 (95% CI: 5.32-5.92)] and with the mobile app [7.71 (95% CI: 7.39-8.03); P < 0.001].

CONCLUSIONS

Large language models developed with artificial intelligence require further refinements to serve as reliable assistants in clinical practice.

Use of digital technologies to support cancer screening in community health promotion interventions: scoping review

The scoping review investigated how digital technologies have helped to increase cancer screening uptake in communities including adolescents, adults and elderly people during the COVID-19 outbreak between January 2020 and June 2021. Thirteen studies were identified as being relevant, mostly addressing underserved or minority communities with the purpose to increase screening uptake, delivering health education or investigating social and cultural barriers to cancer screening. The interventions effectively used digital technologies such as mobile apps and messengers mobile apps, messaging and Web platforms. The limitations imposed by COVID-19 on social interaction can be supported with digital solutions to ensure the continuity of cancer screening programs. However, more research is needed to clarify the exact nature of effectiveness, especially in large-scale interventions.

Clinician based decision tool to guide recommended interval between colonoscopies: development and evaluation pilot study

Background

Optimal intervals between repeat colonoscopies could improve patient outcomes and reduce costs. We evaluated: (a) concordance between clinician and guideline recommended colonoscopy screening intervals in Winnipeg, Manitoba, (b) clinician opinions about the utility of an electronic decision-making tool to aid in recommending screening intervals, and (c) the initial use of a decision-making smartphone/web-based application.

Methods

Clinician endoscopists and primary care providers participated in four focus groups (N = 22). We asked participating clinicians to evaluate up to 12 hypothetical scenarios and compared their recommended screening interval to those of North American guidelines. Fisher’s exact tests were used to assess differences in agreement with guidelines. We developed a decision-making tool and evaluated it via a pilot study with 6 endoscopists.

Result

53% of clinicians made recommendations that agreed with guidelines in ≤ 50% of the hypothetical scenarios. Themes from focus groups included barriers to using a decision-making tool: extra time to use it, less confidence in the results of the tool over their own judgement, and having access to the information required by the tool (e.g., family history). Most were willing to try a tool if it was quick and easy to use. Endoscopists participating in the tool pilot study recommended screening intervals discordant with guidelines 35% of the time. When their recommendation differed from that of the tool, they usually endorsed their own over the guideline.

Conclusions

Endoscopists are overconfident and inconsistent with applying guidelines in their polyp surveillance interval recommendations. Use of a decision tool may improve knowledge and application of guidelines. A change in practice may require that the tool be coupled with continuing education about evidence for improved outcomes if guidelines are followed.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12911-022-01872-z.

Usefulness of a mobile app to improve performance of specialists in responding correctly to CRC screening and surveillance clinical scenarios

Background and study aims  The adherence to and knowledge of physicians about colorectal cancer (CRC) screening and surveillance guidelines is still suboptimal, threatening the effectiveness of CRC screening. This study assessed the usefulness of a mobile decision support system (MDSS) to improve physician ability to recommend proper timing of and intervals for CRC screening and surveillance. Patients and methods  This was a binational, single-blinded, randomized clinical trial including gastroenterologists and colorectal surgeons from Argentina and Uruguay. The specialists were invited to respond to a questionnaire with 10 CRC screening and surveillance clinical scenarios, randomized into two groups, with and without access to a dedicated app (CaPtyVa). The main outcome measure was the proportion of physicians correctly solving at least 60 % of the clinical cases according to local guidelines. Results  A total of 213 physicians were included. The proportion of physicians responding correctly at least 60 % of the vignettes was higher in the app group as compared to the control group (90 % versus 56 %) (relative risk [RR] 1.6 95 % confidence interval [CI] 1.34-1.91). The performance was also higher in the app group for both vignette categories: CRC screening (93 % vs 75 % RR 1.24, 95 %CI 1.01-1.40) and surveillance (85 % vs 47 % RR 1.81 95 %CI 1.46-2.22), respectively. Physicians considered the app easy to use and of great utility in daily practice. Conclusions  A MDSS was shown to be a useful tool that improved specialist performance in solving CRC screening and surveillance clinical scenarios. Its implementation in daily practice may facilitate the adherence of physicians to CRC screening and surveillance guidelines.

Development of an Automated Algorithm to Generate Guideline-based Recommendations for Follow-up Colonoscopy

BACKGROUND AND AIMS

Physician adherence to published colonoscopy surveillance guidelines varies. We aimed to develop and validate an automated clinical decision support algorithm that can extract procedure and pathology data from the electronic medical record (EMR) and generate surveillance intervals congruent with guidelines, which might increase physician adherence.

METHODS

We constructed a clinical decision support (CDS) algorithm based on guidelines from the United States Multi-Society Task Force on Colorectal Cancer. We used a randomly generated validation dataset of 300 outpatient colonoscopies performed at the Cleveland Clinic from 2012 through 2016 to evaluate the accuracy of extracting data from reports stored in the EMR using natural language processing (NLP). We compared colonoscopy follow-up recommendations from the CDS algorithm, endoscopists, and task force guidelines. Using a testing dataset of 2439 colonoscopies, we compared endoscopist recommendations with those of the algorithm.

RESULTS

Manual review of the validation dataset confirmed the NLP program accurately extracted procedure and pathology data for all cases. Recommendations made by endoscopists and the CDS algorithm were guideline-concordant in 62% and 99% of cases, respectively. Discrepant recommendations by endoscopists were earlier than recommended in 94% of the cases. In the testing dataset, 69% of endoscopist and NLP-CDS algorithm recommendations were concordant. Discrepant recommendations by endoscopists were earlier than guidelines in 91% of cases.

CONCLUSIONS

We constructed and tested an automated CDS algorithm that can use NLP-extracted data from the EMR to generate follow-up colonoscopy surveillance recommendations based on published guidelines.

Comparative Effectiveness of Two Interventions to Increase Colorectal Cancer Screening for Those at Increased Risk Based on Family History: Results of a Randomized Trial

BACKGROUND

First-degree relatives (FDR) of patients with colorectal cancer are at risk for colorectal cancer, but may not be up to date with colorectal cancer screening. We sought to determine whether a one-time recommendation about needing colorectal cancer screening using patient navigation (PN) was better than just receiving the recommendation only.

METHODS

Participants were FDRs of patients with Lynch syndrome-negative colorectal cancer from participating Ohio hospitals. FDRs from 259 families were randomized to a website intervention (528 individuals), which included a survey and personal colorectal cancer screening recommendation, while those from 254 families were randomized to the website plus telephonic PN intervention (515 individuals). Primary outcome was adherence to the personal screening recommendation (to get screened or not to get screened) received from the website. Secondary outcomes examined who benefited from adding PN.

RESULTS

At the end of the 14-month follow-up, 78.6% of participants were adherent to their recommendation for colorectal cancer screening with adherence similar between arms (P = 0.14). Among those who received a recommendation to have a colonoscopy immediately, the website plus PN intervention significantly increased the odds of receiving screening, compared with the website intervention (OR: 2.98; 95% confidence interval, 1.68-5.28).

CONCLUSIONS

Addition of PN to a website intervention did not improve adherence to a colorectal cancer screening recommendation overall; however, the addition of PN was more effective in increasing adherence among FDRs who needed screening immediately.

IMPACT

These findings provide important information as to when the additional costs of PN are needed to assure colorectal cancer screening among those at high risk for colorectal cancer.

The Rise of Colorectal Cancer in Asia: Epidemiology, Screening, and Management

PURPOSE OF REVIEW

Colorectal cancer (CRC) remains the third most commonly diagnosed cancer globally, and its incidence and mortality rates have been on the rise in Asia. In this paper, we summarize the recent trends and screening challenges of CRC in this region.

RECENT FINDINGS

In 2018, Asia had the highest proportions of both incident (51.8%) and mortality (52.4%) CRC cases (all genders and ages) per 100,000 population in the world. In addition, there has been a rising trend of this disease across Asia with some regional geographic variations. This rise in CRC can be attributed to westernized dietary lifestyle, increasing population aging, smoking, physical inactivity, and other risk factors. In curbing the rising trend, Japan, South Korea, Singapore, and Taiwan have launched nationwide population-based screening programs. CRC screening across this region has been found to be effective and cost-effective compared with no screening at all. The emergence of new therapies has caused a reduction in case fatality; however, these new options have had a limited impact on cure rates and long-term survival due to the great disparity in treatment capacity/resources and screening infrastructures among Asian countries with different degrees of economic development. CRC is still rising in Asia, and implementation of screening is necessary for moderate- to high-incidence countries and construction of treatment capacity is the priority task in low-incidence and low-income countries. Unless countries in Asia implement CRC screening, the incidence and mortality rates of this disease will continue to rise especially with the rapidly rising population growth, economic development, westernized lifestyle, and increasing aging.