Impact of sedation on the Performance Indicator of Colonic Intubation

Endoscopy ◽  
2020 ◽  
Author(s):  
Karlijn J. Nass ◽  
Sascha C. van Doorn ◽  
Manon van der Vlugt ◽  
Paul Fockens ◽  
Evelien Dekker
Keyword(s):  
Odds Ratio ◽  
Performance Indicator ◽  
Screening Program ◽  
National Database ◽  
Median Dose ◽  
Cecal Intubation ◽  
Crc Screening ◽  
Adenoma Detection ◽  
Immunochemical Test ◽  
Pathology Data

Abstract Background The Performance Indicator of Colonic Intubation (PICI) is a new measure of high-quality colonic intubation. Adequate PICI was defined as cecal intubation without significant discomfort and use of minimal sedation. This study assessed achievement of PICI within the Dutch colorectal cancer (CRC) screening program, and determined the association between PICI and adenoma detection rate (ADR). PICI achievement when using the Dutch median midazolam dose was also assessed. Methods This retrospective study was conducted within the Dutch fecal immunochemical test-based CRC screening program. Colonoscopy and pathology data were prospectively collected in a national database. Data between January 2016 through January 2018 were analyzed. Adequate PICI was defined as successful cecal intubation, Gloucester Comfort Scale (GCS) of 1 – 3, and use of ≤ 2.5 mg midazolam. Results 107 328 colonoscopies were performed during the study period. Adequate PICI was achieved in 49 500 colonoscopies (46.1 %). In colonoscopies with inadequate PICI, inadequacy was due to higher sedation doses in 87.8 %. Adequate PICI was associated with higher ADR (odds ratio 1.16, 95 % confidence interval 1.12 – 1.20). When using a cutoff of 5 mg midazolam, median dose in this Dutch population, adequate PICI was achieved in 95 410 colonoscopies (88.9  %). Conclusion PICI appeared to be heavily dependent on sedation practice. Because of wide variation in sedation practice between individual endoscopists and countries, the benefit of PICI as a quality indicator is limited.

scholarly journals A large proportion of fecal immunochemical test-positive participants in colorectal cancer screening is symptomatic

2017 ◽  
Vol 6 (3) ◽  
pp. 471-479 ◽  
Author(s):  
Clasine M de Klerk ◽  
Manon van der Vlugt ◽  
Patrick M Bossuyt ◽  
Evelien Dekker
Keyword(s):  
Colorectal Cancer ◽  
General Practitioner ◽  
Cancer Screening ◽  
Odds Ratio ◽  
Screening Program ◽  
Daily Practice ◽  
Fecal Immunochemical Test ◽  
Crc Screening ◽  
Advanced Neoplasia ◽  
Immunochemical Test

Background Symptomatic invitees are advised not to participate in colorectal cancer (CRC) screening but to directly consult their general practitioner (GP), because fecal immunochemical test (FIT) sensitivity for cancer is not optimal. This recommendation may not always be followed in daily practice. We evaluated how many FIT-positive participants had CRC-related symptoms and whether the presence of symptoms was associated with the presence and location of CRC/advanced neoplasia. Methods We prospectively collected data on CRC-related symptoms in all FIT-positive participants in the Dutch CRC screening program, referred to our endoscopy centers between 2014 and 2016, and evaluated whether symptoms were associated with detected CRC/advanced neoplasia at colonoscopy. Results Of 527 FIT-positive participants, 314 had advanced neoplasia, of which 41 had CRC. Overall, 246 (47%; 95% confidence interval (CI) 0.42–0.51) reported CRC-related symptoms. A change in bowel habits (odds ratio (OR) 2.86, CI 1.23–6.62) and visible blood in stool (OR 8.65, CI 2.34–32.0) were associated with the detection of CRC at colonoscopy. We did not observe significant associations between evaluated symptoms and advanced neoplasia. Conclusions A large proportion of FIT-positive screening participants have CRC-related symptoms. This suggests that current instructions do not retain symptomatic screening invitees from participation and awareness of CRC-related symptoms is inadequate.

scholarly journals Management of large polyps in a colorectal cancer screening program with fecal immunochemical test: a population-based study

2020 ◽  
Author(s):  
Bernard Denis ◽  
Isabelle Gendre ◽  
Philippe Perrin ◽  
Nicolas Tuzin ◽  
Mathieu Pioche
Keyword(s):  
Colorectal Cancer ◽  
Endoscopic Resection ◽  
Screening Program ◽  
Population Based ◽  
Fecal Immunochemical Test ◽  
Cecal Intubation ◽  
Population Based Study ◽  
Cancer Screening Program ◽  
Adenoma Detection ◽  
Immunochemical Test

Objective: To analyze presentation, management and outcomes of large (≥ 20 mm) polyps (LPs) detected in a colorectal cancer (CRC) screening program using a fecal immunochemical test (FIT). Design: Retrospective population-based study of all LPs detected in patients aged 50-74 years between 2015 and 2019 during FIT-positive colonoscopies within the screening program organized in Alsace (France). Results: Among 13,633 FIT-positive colonoscopies, 1256 LPs (8.5% malignant and 51.8% non-pedunculated) were detected by 102 community gastroenterologists in 1164 patients (one in 12 colonoscopies). The sensitivity of optical diagnosis of malignancy was 54% for non-pedunculated and 27% for pedunculated T1 CRCs. Endoscopic resection rate was 82.7% [95% CI 80.3-84.9] for benign LPs (70.2% [95% CI 66.4-74.1] non-pedunculated, 95.2% [95% CI 93.4-97.1] pedunculated, p<0.001), varying from 0 to 100% depending on the endoscopist. It was correlated with cecal intubation (Pearson r = 0.49, p<0.01) and adenoma detection (r = 0.25, p=0.01) rates. Most endoscopists did not refer patients to more experienced endoscopists, so that 60 to 90% of 183 surgeries for benign LPs were unwarranted. Endoscopic resection was curative for 4.3% [95% CI 0.9-12.0] of non-pedunculated and 37.8% [95% CI 22.5-55.2] of pedunculated T1 CRCs. Overall, 22 endoscopic submucosal dissections had to be performed to avoid one surgery. Conclusion: Compared with current recommendations, there is tremendous room for improvement of community endoscopy practices for the diagnosis and management of LPs. Detection and polypectomy competencies are correlated and highly variable among endoscopists. Endoscopic resection is curative in 83% of benign LPs and 16% of T1 CRCs.

scholarly journals Odds of Incomplete Colonoscopy in Colorectal Cancer Screening Based on Socioeconomic Status

Diagnostics ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 171
Author(s):  
Birgitte Skau ◽  
Ulrik Deding ◽  
Lasse Kaalby ◽  
Gunnar Baatrup ◽  
Morten Kobaek-Larsen ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Socioeconomic Status ◽  
Low Income ◽  
Educational Level ◽  
Odds Ratio ◽  
Screening Program ◽  
Crc Screening ◽  
Incomplete Colonoscopy ◽  
Immunochemical Test ◽  
Inadequate Bowel Preparation

The aim of this study is to investigate the association between socioeconomic status (SES) and the risk of having an incomplete colonoscopy (IC) in the Danish Colorectal Cancer (CRC) Screening Program. In this register-based study we included 71,973 participants who underwent colonoscopy after a positive fecal immunochemical test in the Danish CRC Screening Program. The main exposure, SES, was defined by income and education, and the outcome by complete or incomplete colonoscopy. Among the participants, 5428 (7.5%) had an incomplete colonoscopy. The odds ratio (OR) for ICs due to inadequate bowel preparation was 1.67 (95% CI: 1.46; 1.91) for income in the 1 quartile compared to income in the 4th quartile. ORs for income in the 2nd quartile was 1.38 (95% CI: 1.21; 1.56) and 1.17 (95% CI: 1.03; 1.33) for income in the 3rd quartile. For the educational level, an association was seen for high school/vocational education with an OR of 0.87 (95% CI: 0.79; 0.97) compared to higher education. For ICs due to other reasons, the level of income was associated with the risk of having an IC with an OR of 1.19 (95% CI: 1.05; 1.35) in the 1st quartile and an OR of 1.19 (95% CI: 1.06; 1.34) in the 2nd quartile. For the educational level, there were no significant associations. Low income is associated with high risk of having an IC, whereas educational level does not show the same unambiguous association.

Adenoma detection by Endocuff-assisted versus standard colonoscopy in an organized screening program: the “ItaVision” Randomized Controlled Trial

Endoscopy ◽  
2021 ◽  
Author(s):  
Manuel Zorzi ◽  
Cesare Hassan ◽  
Jessica Battagello ◽  
Giulio Antonelli ◽  
Maurizio Pantalena ◽  
...  
Keyword(s):  
Screening Program ◽  
Controlled Trial ◽  
Withdrawal Time ◽  
Adenoma Detection ◽  
Organized Screening Program ◽  
Immunochemical Test ◽  
Medical Design ◽  
Standard Colonoscopy ◽  
To Receive ◽  
Screening History

Objective Endocuff Vision (EV, Arc Medical Design Ltd., Leeds, England) has shown to increase mucosal exposure, and consequently adenoma detection rate (ADR), during colonoscopy. This nationwide multicentre study assessed possible benefits and harms of implementing EV in a Faecal Immunochemical Test (FIT)-based screening program. Design Patients undergoing colonoscopy after a FIT+ test were randomised 1:1 to receive colonoscopy with EV or standard colonoscopy, stratified by gender, age, and screening history. Primary outcome was ADR, Secondary outcomes were ADR stratified by endoscopists’ ADR, advanced ADR (AADR), adenoma per colonoscopy (APC), withdrawal time (WT), and adverse events (AE). Results Overall, 1,864 patients were enrolled in 13 centres. After exclusions, 1,813 (males: 53.7%; mean age: 60.1 years) were randomised, 908 in the EV arm and 905 in the control. ADR was significantly higher in the EV arm (47.8% vs 40.8%; RR 1.17, 95%CI 1.06-1.30) with no differences between arms regarding size or morphology. When stratifying for endoscopists’ ADR, only low detectors (ADR< 33.3%) showed a statistically significant ADR increase (EV = 41.1%, 95%CI 35.7-46.7 vs control = 26%, 95%CI 21.3-31.4 . AADR (24.8% vs 20.5%, RR 1.21; 95%CI 1.02-1.43) and APC (0.94 vs. 0.77, p=0.001) were higher in the EV arm. WT and AE were similar between arms. Conclusion EV increased ADR in a FIT-based screening program, supporting a complete exploration of colonic mucosa. Its utility was highest among endoscopists with a low ADR. ClinicalTrial.gov NCT03612674

scholarly journals Outcomes of colonoscopy with non-anesthesiologist-administered propofol (NAAP): an equivalence trial

2021 ◽  
Vol 09 (07) ◽  
pp. E1070-E1076
Author(s):  
Marco Alburquerque ◽  
Antonella Smarrelli ◽  
Julio Chevarria Montesinos ◽  
Sergi Ortega Carreño ◽  
Ana Zaragoza Fernandez ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Screening Program ◽  
Complication Rates ◽  
Withdrawal Time ◽  
Equivalence Trial ◽  
Crc Screening ◽  
Intention To Treat ◽  
Adenoma Detection ◽  
Group A ◽  
Cecal Intubation Rate

Abstract Background and study aims Efficacy and safety of NAAP for gastrointestinal endoscopy have been widely documented, although there is no information about the outcomes of colonoscopy when the endoscopist supervises the sedation. In this context, the aim of this trial was to determine the equivalence of adenoma detection rate (ADR) in colorectal cancer (CRC) screening colonoscopies performed with non-anesthesiologist-administered propofol (NAAP) and performed with monitored anesthesia care (MAC). Patients and methods This was a single-blind, non-randomized controlled equivalence trial that enrolled adults from a national CRC screening program (CRCSP). Patients were blindly assigned to undergo either colonoscopy with NAAP or MAC. The main outcome measure was the ADR in CRCSP colonoscopies performed with NAAP. Results We included 315 patients per group. The median age was 59.76 ± 5.81 years; 40.5 % of patients were women. The cecal intubation rate was 97 %, 81.8 % of patients had adequate bowel preparation, withdrawal time was > 6 minutes in 98.7 %, and the median global exploration time was 24.25 ± 8.86 minutes (range, 8–70 minutes). The ADR was 62.9 % and the complication rate (CR) was 0.6 %. Analysis by intention-to-treat showed an ADR in the NAAP group of 64.13 % compared with 61.59 % in the MAC group, a difference (δADR) of 2.54 %, 95 %CI: −0.10 to 0.05. Analysis by per-protocol showed an ADR in the NAAP group of 62.98 %, compared with 61.94 % in the MAC group, δADR: 1.04 %, 95 %CI: −0.09 to 0.07. There was no difference in CR (NAAP: 0,63 vs. MAC: 0.63); P = 1.0. Conclusions ADR in colorectal cancer screening colonoscopies performed with NAAP was equivalent to that in those performed with MAC. Similarly, there was no difference in complication rates.

scholarly journals The impact of Endocuff-assisted colonoscopy on adenoma detection in an organized screening program

2018 ◽  
Vol 06 (04) ◽  
pp. E437-E442 ◽  
Author(s):  
Lucas Cavallaro ◽  
Cesare Hassan ◽  
Pierenrico Lecis ◽  
Ermenegildo Galliani ◽  
Elisabetta Dal Pont ◽  
...  
Keyword(s):  
Detection Rate ◽  
Screening Program ◽  
Occult Blood ◽  
Adenoma Detection Rate ◽  
Advanced Adenoma ◽  
Fecal Occult Blood ◽  
Crc Screening ◽  
Adenoma Detection ◽  
Number Of Patients ◽  
The Impact

Abstract Background and study aims Colorectal cancer (CRC) screening with biennial fecal occult blood test has been shown to reduce CRC mortality. For the effectiveness of the CRC screening program is crucial that a high-quality colonoscopy with a high adenoma detection rate (ADR) be performed. To improve ADR, various endoscopic devices have been developed. Endocuff, an endoscopic cap with finger-like projections, has been shown to improve ADR. The aim of this study was to compare in an organized CRC screening program ADR, advanced adenoma detection rate (AADR) and mean number of adenomas per patient (MAP) using standard colonoscopy (SC) and Endocuff-assisted colonoscopy (EAC). Patients and methods We compared performance of SC (in 2014) and EAC (in 2015) in consecutive participants in an organized CRC screening program. Results SC and EAC were performed in 546 (284 males) and 519 (293 males) subjects, respectively (mean age 60 years). Cecal intubation rate was 97.4 % for SC and 97.1 % for EAC and not significantly different (P = 0.7). ADR was 47 % for SC and 52 % for EAC, P = 0.1. MAP in SC and EAC were 0.87 (range: 0 – 7) and 1.11 (range: 0 – 13) respectively, P = 0.02. AADR rate was 25 % and 23 % for SC and EAC, respectively, P = 0.5. Conclusion Endocuff-assisted colonoscopy does not improve the number of patients with at least one adenoma but it may increase the number of detected adenomas per procedure.

scholarly journals Colorectal cancer after negative colonoscopy in fecal immunochemical test-positive participants from a colorectal cancer screening program

2018 ◽  
Vol 06 (09) ◽  
pp. E1140-E1148 ◽  
Author(s):  
Liseth Rivero-Sánchez ◽  
Jaume Grau ◽  
Josep María Augé ◽  
Lorena Moreno ◽  
Angels Pozo ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Screening Program ◽  
Fecal Immunochemical Test ◽  
Colorectal Adenomas ◽  
Crc Screening ◽  
Cancer Screening Program ◽  
Screening Strategies ◽  
Immunochemical Test ◽  
Low Incidence

Abstract Background and study aims Colorectal cancer (CRC) risk after a positive fecal immunochemical test (FIT) and negative colonoscopy is unknown. We aimed to ascertain the cumulative incidence of post-colonoscopy colorectal cancer (PCCRC) and the manifestation of other lesions that could explain the test positivity in individuals with a negative colonoscopy in a population screening program. Patients and method Observational study in participants from the first round of a CRC screening program (2010 – 2012) with positive-FIT (≥ 20 μg/g of feces) and negative colonoscopy (without neoplasia). A 42- to 76-month follow-up was performed searching in the National Health Service database and by a brief structured telephonic interview. Results Of 2659 FIT-positive individuals who underwent colonoscopy, 811 (30.5 %) had a negative colonoscopy. Three PCCRC (0.4 %) were detected within 11 – 28 months and accelerated carcinogenesis was ruled out. Among those with normal colonoscopy, 32 (5 %) relevant lesions were detected at follow-up. One-third of them (11/32) were significant neoplasias: a gastric cancer, a small-bowel lymphoma, six advanced colorectal adenomas, and the three PCCRC. The 21 remaining lesions were inflammatory, vascular disorders, or non-advanced colorectal adenomas. Conclusions The vast majority (95 %) of individuals did not present any subsequent lesion that could explain the FIT positivity. The very low incidence (0.4 %) and characteristics of PCCRC observed in our cohort reinforce the concept that, although a positive FIT preselects high risk individuals, a high quality colonoscopy is the paramount factor in preventing PCCRC. Improving quality standards of colonoscopy are required to strengthen the current CRC screening strategies.

Diagnostic yield of early repeat colonoscopy after suboptimal bowel preparation in a fecal immunochemical test-based screening program

Endoscopy ◽  
2020 ◽  
Vol 52 (12) ◽  
pp. 1093-1100 ◽  
Author(s):  
Sandra Baile-Maxía ◽  
Carolina Mangas-Sanjuan ◽  
Lucía Medina-Prado ◽  
Juan Martínez-Sempere ◽  
Oscar Murcia ◽  
...  
Keyword(s):  
Bowel Preparation ◽  
Screening Program ◽  
Diagnostic Yield ◽  
Fecal Immunochemical Test ◽  
High Rate ◽  
Screening Colonoscopy ◽  
Advanced Adenoma ◽  
Adenoma Detection ◽  
Immunochemical Test ◽  
Repeat Colonoscopy

Abstract Background Current guidelines regarding surveillance after screening colonoscopy assume adequate bowel preparation. However, follow-up intervals after suboptimal cleansing are highly heterogeneous. We aimed to determine the diagnostic yield of early repeat colonoscopy in patients with suboptimal bowel preparation in fecal immunochemical test (FIT)-based screening colonoscopy. Methods An observational study including patients who underwent colonoscopy with suboptimal bowel preparation after positive FIT screening and then repeat colonoscopy within 1 year. Suboptimal preparation was defined as a Boston Bowel Preparation Scale (BBPS) score of 1 in any segment. Patients with a BBPS score of 0 in any segment or incomplete examination were excluded. The adenoma detection rate (ADR), advanced ADR (AADR), and colorectal cancer rate were calculated for the index and repeat colonoscopies. Results Of the 2474 patients with FIT-positive colonoscopy at our center during this period, 314 (12.7 %) had suboptimal preparation. Of the 259 (82.5 %) patients who underwent repeat colonoscopy, suboptimal cleansing persisted in 22 (9 %). On repeat colonoscopy, the ADR was 38.7 % (95 %CI 32.6 % to 44.8 %) and the AADR was 14.9 % (95 %CI 10.5 % to 19.4 %). The per-adenoma miss rate was 27.7 % (95 %CI 24.0 % to 31.6 %), and the per-advanced adenoma miss rate was 17.6 % (95 %CI 13.3 % to 22.7 %). After repeat colonoscopy, the post-polypectomy surveillance recommendation changed from 10 to 3 years in 14.7 % of the patients with previous 10-year surveillance recommendation. Conclusions Patients with suboptimal bowel preparation on FIT-positive colonoscopy present a high rate of advanced adenomas in repeat colonoscopy, with major changes in post-polypectomy surveillance recommendations.

scholarly journals Overtreatment in nonmalignant lesions detected in a colorectal cancer screening program: a retrospective cohort study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Joaquín Cubiella ◽  
Antía González ◽  
Raquel Almazán ◽  
Elena Rodríguez-Camacho ◽  
Raquel Zubizarreta ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Screening Program ◽  
Multivariable Analysis ◽  
Low Risk ◽  
Benign Lesions ◽  
Screening Programs ◽  
Crc Screening ◽  
European Guidelines ◽  
Adenoma Detection ◽  
Incidence And Mortality

Abstract Background Although colorectal cancer (CRC) screening programs reduce CRC incidence and mortality, they are associated with risks in healthy subjects. However, the risk of overtreatment and overdiagnosis has not been determined yet. The aim of this study was to report the surgery rates in patients with nonmalignant lesions detected within the first round of a fecal immunochemical test (FIT) based CRC screening program and the factors associated with it. Methods We included in this analysis all patients with nonmalignant lesions detected between May 2013 and June 2019 in the Galician (Spain) CRC screening program. We calculated surgery rate according to demographic variables, the risk classification according to the colonoscopy findings (European guidelines for quality assurance), the endoscopist’s adenoma detection rate (ADR) classified into quartiles and the hospital’s complexity level. We determined which variables were independently associated with surgery rate and expressed the association as Odds Ratio and its 95% confidence interval (CI). Results We included 15,707 patients in the analysis with high (19.9%), intermediate (26.9%) low risk (23.3%) adenomas and normal colonoscopy (29.9%) detected in the analyzed period. Colorectal surgery was performed in 162 patients (1.03, 95% CI 0.87–1.19), due to colonoscopy complications (0.02, 95% CI 0.00–0.05) and resection of colorectal benign lesions (1.00, 95% CI 0.85–1.16). Median hospital stay was 6 days with 17.3% patients developing minor complications, 7.4% major complications and one death. After discharge, complications developed in 18.4% patients. In benign lesions, an endoscopic resection was performed in 25.4% and a residual premalignant lesion was detected in 89.9%. The variables independently associated with surgery in the multivariable analysis were age (≥60 years = 1.57, 95% CI 1.11–2.23), sex (female = 2.10, 95% CI 1.52–2.91), the European guidelines classification (high risk = 67.94, 95% CI 24.87–185.59; intermediate risk = 5.63, 95% CI 1.89–16.80; low risk = 1.43; 95% CI 0.36–5.75), the endoscopist’s ADR (Q4 = 0.44, 95% CI 0.28–0.68; Q3 = 0.44, 95% CI 0.27–0.71; Q2 = 0.71, 95% CI 0.44–1.14) and the hospital (tertiary = 0.54, 95% CI 0.38–0.79). Conclusions In a CRC screening program, the surgery rate and the associated complications in patients with nonmalignant lesions are low, and related to age, sex, endoscopic findings, endoscopist’s ADR and the hospital’s complexity.

Prevalence of adenomatous polyposis in a fecal immunochemical test-based colorectal cancer screening program and risk of advanced neoplasia during follow-up

Endoscopy ◽  
2021 ◽  
Author(s):  
Sabela Carballal ◽  
Ariadna Sánchez ◽  
Leticia Moreira ◽  
Jesús-Eduardo Cuellar Monterrubio ◽  
Julio Bernuy ◽  
...  
Keyword(s):  
Cumulative Incidence ◽  
Screening Program ◽  
Fecal Immunochemical Test ◽  
Colorectal Adenomas ◽  
Advanced Adenoma ◽  
Multivariable Logistic Regression Analysis ◽  
Crc Screening ◽  
Advanced Neoplasia ◽  
Immunochemical Test

Background and study aims: current guidelines recommend genetic counseling and intensive colonoscopy surveillance for patients with ≥10 colorectal adenomas based on scarce data. We investigated the prevalence of this condition in a FIT (fecal immunochemical test)-based colorectal (CRC) screening program and the incidence of metachronous lesions during follow-up. Patients and methods: we retrospectively included all FIT-positive participants with ≥10 adenomas at index colonoscopy between 2010 and 2018. Surveillance colonoscopies (SVC) were collected until 2019. Patients with inherited syndromes, serrated polyposis syndrome, total colectomy or lacking surveillance data, were excluded. Cumulative incidence of CRC and advanced neoplasia (AN) were analyzed by Kaplan-Meyer analysis. Risk factors of metachronous AN were investigated by multivariable logistic-regression analysis. Results: 215/9,582 (2.2%) participants had ≥10 adenomas. Germline genetic testing was performed in 92% of patients with ≥20 adenomas identifying 2 (3.3%) inherited syndromes. 3-year cumulative incidence of CRC and AN was 1%, and 16%, respectively. In 39 (24.2%) patients no polyps were found at first SVC. The presence of advanced adenoma was independently associated with a higher risk of AN at first SVC (OR: 3.91, 95% confident interval : 1.12-13.62; p=0.03). Beyond the first SVC, the risk of metachronous AN was lower. Conclusions: the prevalence of ≥10 adenomas in a FIT-based CRC screening program is 2.2% and a small proportion of inherited syndromes are detected even amongst those with ≥ 20 adenomas. Low rate of post-colonoscopy CRC is observed and the risk of AN beyond the first SVC tends to progressively decrease throughout successive follow-up.

Sign in / Sign up

Export Citation Format

Share Document