Cost Effectiveness of Endoscopic Resection vs Transanal Resection of Complex Benign Rectal Polyps.

BACKGROUND & AIMS: Complex benign rectal polyps can be managed with transanal surgery or with endoscopic resection (ER). Though the complication rate after ER is lower than transanal surgery, recurrence is higher. Patients lost to follow up after ER might therefore be at increased risk for rectal cancer. We evaluated the costs, benefits, and cost effectiveness of ER compared to 2 surgical techniques for removing complex rectal polyps, using a 50-year time horizon-this allowed us to capture rates of cancer development among patients lost from follow-up surveillance. METHODS: We created a Markov model to simulate the lifetime outcomes and costs of ER, transanal endoscopic microsurgery (TEM), and transanal minimally invasive surgery (TAMIS) for the management of a complex benign rectal polyp. We assessed the effect of surveillance by allowing a portion of the patients to be lost to follow up. We calculated the cost, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratio or each intervention over a 50-year time horizon. RESULTS: We found that TEM was slightly more effective than TAMIS and ER (TEM, 19.54 QALYs; TAMIS, 19.53 QALYs; and ER, 19.53 QALYs), but ER had a lower lifetime discounted cost (ER cost $7161, TEM cost $10,459, and TAMIS cost $11,253). TEM was not cost effective compared to ER, with an incremental cost-effectiveness ratio of $485,333/QALY. TAMIS was dominated by TEM. TEM became cost effective when the mortality from ER exceeded 0.63%, or if the loss to follow up rate exceeded 25.5%. CONCLUSIONS: Using a Markov model, we found that ER, TEM, and TAMIS have similar effectiveness, but ER is less expensive, in management of benign rectal polyps. As the rate of loss to follow up increases, transanal surgery becomes more effective relative to ER.

Race and Prevalence of Large Bowel Polyps Among the Low-Income and Uninsured in South Carolina.

BACKGROUND: Compared to whites, blacks have higher colorectal cancer incidence and mortality rates and are at greater risk for early-onset disease. The reasons for this racial disparity are poorly understood, but one contributing factor could be differences in access to high-quality screening and medical care. AIMS: The present study was carried out to assess whether a racial difference in prevalence of large bowel polyps persists within a poor and uninsured population (n = 233, 124 blacks, 91 whites, 18 other) undergoing screening colonoscopy. METHODS: Eligible patients were uninsured, asymptomatic, had no personal history of colorectal neoplasia, and were between the ages 45-64 years (blacks) or 50-64 years (whites, other). We examined the prevalence of any adenoma (conventional, serrated) and then difference in adenoma/polyp type by race and age categories. RESULTS: Prevalence for ≥1 adenoma was 37 % (95 % CI 31-43 %) for all races combined and 36 % in blacks <50 years, 38 % in blacks ≥50 years, and 35 % in whites. When stratified by race, blacks had a higher prevalence of large conventional proximal neoplasia (8 %) compared to whites (2 %) (p value = 0.06) but a lower prevalence of any serrated-like (blacks 18 %, whites 32 %; p value = 0.02) and sessile serrated adenomas/polyps (blacks 2 %, whites 8 % Chi-square p value; p = 0.05). CONCLUSIONS: Within this uninsured population, the overall prevalence of adenomas was high and nearly equal by race, but the racial differences observed between serrated and conventional polyp types emphasize the importance of taking polyp type into account in future research on this topic.

Can we ease the financial burden of colonoscopy? Using real-time endoscopic assessment of polyp histology to predict surveillance intervals.

BACKGROUND: Polyps identified at colonoscopy are predominantly diminutive (<5 mm) with a small risk (>1%) of high-grade dysplasia or carcinoma; however, the cost of histological assessment is substantial. AIM: The aim of this study was to determine whether prediction of colonoscopy surveillance intervals based on real-time endoscopic assessment of polyp histology is accurate and cost effective. METHODS: A prospective cohort study was conducted across a tertiary care and private community hospital. Ninety-four patients underwent colonoscopy and polypectomy of diminutive (≤5 mm) polyps from October 2012 to July 2013, yielding a total of 159 polyps. Polyps were examined and classified according to the Sano-Emura classification system. The endoscopic assessment (optical diagnosis) of polyp histology was used to predict appropriate colonoscopy surveillance intervals. The main outcome measure was the accuracy of optical diagnosis of diminutive colonic polyps against the gold standard of histological assessment. RESULTS: Optical diagnosis was correct in 105/108 (97.2%) adenomas. This yielded a sensitivity, specificity and positive and negative predictive values (with 95%CI) of 97.2% (92.1-99.4%), 78.4% (64.7-88.7%), 90.5% (83.7-95.2%) and 93% (80.9-98.5%) respectively. Ninety-two (98%) patients were correctly triaged to their repeat surveillance colonoscopy. Based on these findings, a cut and discard approach would have resulted in a saving of $319.77 per patient. CONCLUSION: Endoscopists within a tertiary care setting can accurately predict diminutive polyp histology and confer an appropriate surveillance interval with an associated financial benefit to the healthcare system. However, limitations to its application in the community setting exist, which may improve with further training and high-definition colonoscopes.

[Screening for colorectal cancer: a cost benefit analysis on a health prevention programme at the Boehringer Ingelheim Company]. / Darmkrebsscreening im betrieblichen Umfeld: Kosten-Nutzen-Analyse einer Maßnahme zur Gesundheitsförderung bei Boehringer Ingelheim.

BACKGROUND AND OBJECTIVE: In Germany, approximately 70.000 people are diagnosed with colorectal cancer every year. With early diagnosis the recovery rates are over 90 % and early intervention can significantly reduce the costs of medical treatment as well as the economic losses from worker productivity. We here present the organisational procedure for bowel cancer screening and have weighed the costs against benefits to employees, the company and the healthcare system. The screening costs are compared with economic benefits. METHODS: The target group for the study consisted of all 11.536 employees at the company's site in Germany. Volunteers were given a standardized questionnaire about the risk factors for colorectal cancers and an immunological fecal occult blood test (IFOBT). If risk factors for development of colorectal cancer were present or if the test result was positive, a colonoscopy was recommended in accordance with DGVS guidelines (German Society of Digestive and Metabolic diseases). RESULTS: A total of 4.287 employees (37.2 %) indicated an interest in undergoing screening; at the end of the period 3.958 complete datasets (2.296 men and 1.662 women, mean age 51.2 years) were available for evaluation. A colonoscopy was performed on 114 persons. Six cases of overt cancer were detected with three in the 36 - 50 age group and three in the 51 - 65 age group. Five of the six cases were stage T1 or T2. Adenomatous polyps were found and removed in 29 persons. The calculated cost benefit ratio was 1:2 for the company and 1:35 for the public health system. CONCLUSION: Using the example of colorectal screening, this study represents a cost benefit analysis of this preventative health measure in a company environment. The results show that even while taking into account the financial and personal commitment required, the cost benefit ratio is positive both for the company and for the healthcare system.

Choice of screening modality in a colorectal cancer education and screening program for the uninsured.

BACKGROUND: Starting in 2001, the state of Maryland established a carefully planned and executed multicomponent intervention to reduce mortality and disparities in colorectal cancer. METHODS: In the most populous county, uninsured participants received education and a choice of free screening by fecal occult blood testing (FOBT) or colonoscopy or both. RESULTS: Over 2 years, a group of 1,672 uninsured individuals, of whom 90% were minorities, registered with the program. Overall, screening uptake was 41% with colonoscopy, 10% with FOBT, and 10% with both FOBT and colonoscopy. CONCLUSION: The choices of colorectal cancer screening modalities by a diverse uninsured population demonstrates the importance of maintaining screening options.

Audit on flexible sigmoidoscopy for rectal bleeding in a district general hospital: are we over-loading the resources?

OBJECTIVE: Patients with rectal bleeding are being over investigated because of the fear of missing colorectal cancers. This study aimed to identify the percentage of patients <45 years of age who undergo flexible sigmoidoscopy for rectal bleeding, and to assess and compare the incidence of colorectal cancers and polyps above and below this age. METHODS: Patients who underwent flexible sigmoidoscopy for rectal bleeding between 1 January 2000 and 31 December 2002 were reviewed. Patients were divided into two groups: group 1 consisted of patients aged >or=45 years and group 2 patients <45 years. The histopathology of biopsy specimens taken was also studied. RESULTS: Altogether 18.9% of the patients who had flexible sigmoidoscopy for rectal bleeding were <45 years. The incidence of colorectal cancers in group 1 was 3.5%; all these cases were confirmed on histopathology. Only one patient in group 2 was diagnosed with colorectal cancer on flexible sigmoidoscopy, but the histopathology disproved it. The incidence of polyps was 16.6% in group 1 and 7.9% in group 2. Following histopathology, the incidence of adenomatous polyps was 6.8% in group 1 and 2.1% in group 2. There was a significant difference between the two groups, with a p value of <0.0001. CONCLUSION: The incidence of colorectal cancers and adenomatous polyps in patients aged <45 years with rectal bleeding is very low. A flexible sigmoidoscopy costs approximately pound 330. If new guidelines are implemented considering the age of the patient, considerable cost savings could be made, and the available resources could be appropriately used in groups with high incidences of colorectal cancers.

A loss-effectiveness analysis of risk-adapted surveillance after colorectal polypectomy.

Surveillance of patients after initial polypectomy is considered as an effective means to prevent the development of colorectal carcinoma. Several proposals with varying follow-up schedules are given in the literature. Based on a growing awareness on possibilities to prevent colorectal cancer from developing, the discovery of colorectal adenoma and consequently the need for surveillance by colonoscopy will increase. In this paper, a strategy for a cost-effectiveness analysis of adenoma surveillance will be discussed. Obstacles to reach a conclusive result are pointed out, gaps in information needed are marked, modelling techniques used in a sound sensitivity analysis will be described.

Is routine screening for colorectal cancer justifiable? These gastroenterologists say YES!

While methods of screening for colorectal cancer undoubtedly will be refined and new techniques developed, there is ample evidence to support use of the currently employed protocol: annual fecal occult blood testing and periodic flexible sigmoidoscopy. Aggressive attempts to educate physicians and patients on the importance of such screening are needed. Primary care physicians can play an important role in ensuring patient compliance and reducing the incidence of this serious public health problem.