1
|
Alfaro-Núñez A, Christensen S, Jensen EA. Investigating the putative unforeseen link between football fervour and colorectal cancer screening in Denmark. PeerJ 2024; 12:e18057. [PMID: 39346062 PMCID: PMC11439399 DOI: 10.7717/peerj.18057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 08/16/2024] [Indexed: 10/01/2024] Open
Abstract
Colorectal cancer (CRC) ranks as the third most prevalent cancer globally, often remaining asymptomatic in its early stages but posing high mortality risks in advanced tumours. Screening for CRC (sCRC) has shown to effectively reduce both incidence and mortality rates. In this study, we investigate a potential association between a decline in sCRC participation in Denmark and a major sporting event. We conducted an association cohort study encompassing all citizens aged 50 to 74, who were invited to undergo sCRC screening in Region Zealand, Denmark, spanning from 2014 to 2022. Our analysis revealed a noticeable reduction in sCRC participation specifically during the 2-week period in autumn 2022 coinciding with the participation of the Danish football team in the Football World Cup 2022 held in Qatar. To our knowledge, this is the first instance where an international sporting event has been linked to a decline in national sCRC participation, suggesting that the fervour of sports enthusiasts may divert attention away from preventive health measures. Notably, no similar reductions in sCRC participation were observed during any other sporting events throughout the entire study period (2014-2022) in Denmark.
Collapse
Affiliation(s)
- Alonzo Alfaro-Núñez
- Section for Geogenetics, GLOBE Institute, University of Copenhagen, Copenhagen K, Copenhagen, Denmark
- Department of Clinical Biochemistry, Naestved Hospital, Naestved, Naestved, Denmark
| | - Stina Christensen
- Department of Clinical Biochemistry, Naestved Hospital, Naestved, Naestved, Denmark
| | - Esther A. Jensen
- Department of Clinical Biochemistry, Naestved Hospital, Naestved, Naestved, Denmark
- The Secretariat for Colorectal Screening, Region Zealand, Naestved, Denmark
| |
Collapse
|
2
|
Honaker MD, Burch AE, Wong JH, Akram WM, Irish WD. A Novel Approach to Analyze Disparities in Colorectal Cancer Screening and Mortality. J Surg Res 2024; 298:347-354. [PMID: 38663261 DOI: 10.1016/j.jss.2024.03.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/23/2024] [Accepted: 03/22/2024] [Indexed: 06/03/2024]
Abstract
INTRODUCTION Reducing disparities in colorectal cancer (CRC) screening rates and mortality remains a priority. Mitigation strategies to reduce these disparities have largely been unsuccessful. The primary aim is to determine variables in models of healthcare utilization and their association with CRC screening and mortality in North Carolina. METHODS A cross-sectional analysis of publicly available data across North Carolina using variable reduction techniques with clustering to evaluate association of CRC screening rates and mortality was performed. RESULTS Three million sixty-five thousand five hundred thirty-seven residents (32.1%) were aged 50 y or more. More than two-thirds (68.8%) were White, while 20.5% were Black. Approximately 61% aged 50 y or more underwent CRC screening (range: 44.0%-80.5%) and had a CRC mortality of 44.8 per 100,000 (range 22.8 to 76.6 per 100,000). Cluster analysis identified two factors, designated social economic education index (factor 1) and rural provider index (factor 2) for inclusion in the multivariate analysis. CRC screening rates were associated with factor 1, consisting of socioeconomic and education variables, and factor 2, comprised of the number of providers per 10,000 individuals aged 50 y or more and rurality. An increase in both factors 1 and 2 by one point would result in an increase in CRC screening rated by 6.8%. CRC mortality was associated with factor 2. An increase in one point in factor 1 results in a decrease in mortality risk by 10.9%. CONCLUSIONS In North Carolina, using variable reduction with clustering, CRC screening rates were associated with the inter-relationship of the number of providers and rurality, while CRC mortality was associated with the inter-relationship of social, economic, and education variables.
Collapse
Affiliation(s)
- Michael D Honaker
- Division of Surgical Oncology, Department of Surgery, Brody School of Medicine at East Carolina University, Greenville, North Carolina.
| | - Ashley E Burch
- Department of Health Services and Information Management, East Carolina University, Greenville, North Carolina
| | - Jan H Wong
- Division of Surgical Research, Department of Surgery, Brody School of Medicine at East Carolina University, Greenville, North Carolina
| | - Warqaa M Akram
- Division of Surgical Oncology, Department of Surgery, Brody School of Medicine at East Carolina University, Greenville, North Carolina
| | - William D Irish
- Division of Surgical Research, Department of Surgery, Brody School of Medicine at East Carolina University, Greenville, North Carolina; Department of Public Health, East Carolina University, Greenville, North Carolina
| |
Collapse
|
3
|
Heisser T, Senore C, Hoffmeister M, Jansen L, Brenner H. Disclosing the true impact of screening endoscopy in colorectal cancer prevention. Cancer Commun (Lond) 2024; 44:504-507. [PMID: 38495017 PMCID: PMC11024681 DOI: 10.1002/cac2.12531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 01/10/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024] Open
Affiliation(s)
- Thomas Heisser
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergBaden‐WürttembergGermany
| | - Carlo Senore
- Epidemiology and Screening UnitReference Centre for Epidemiology and Cancer Prevention, University Hospital Città della Salute e della ScienzaTurinPiedmontItaly
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergBaden‐WürttembergGermany
| | - Lina Jansen
- Epidemiological Cancer Registry Baden‐Württemberg, German Cancer Research Center (DKFZ)HeidelbergBaden‐WürttembergGermany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergBaden‐WürttembergGermany
- Division of Preventive OncologyGerman Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT)HeidelbergBaden‐WürttembergGermany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ)HeidelbergBaden‐WürttembergGermany
| |
Collapse
|
4
|
Heisser T, Sergeev D, Hoffmeister M, Brenner H. Contributions of early detection and cancer prevention to colorectal cancer mortality reduction by screening colonoscopy: a validated modeling study. Gastrointest Endosc 2024:S0016-5107(24)00163-9. [PMID: 38462054 DOI: 10.1016/j.gie.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/17/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND AND AIMS Screening colonoscopy, recommended every 10 years, reduces mortality from colorectal cancer (CRC) by early detection of prevalent but undiagnosed CRC, as well as by removal of precursor lesions. The aim of this study was to assess the relative contribution of both components to total CRC mortality reduction over time. METHODS Using a validated multistate Markov model, we simulated hypothetical cohorts of 100,000 individuals aged 55 to 64 years with and without screening at baseline. Main outcomes included proportions of prevented CRC deaths arising from (asymptomatic) CRC already present at baseline and from newly developed CRC during 15 years of follow-up, and mortality rate ratios of screened versus nonscreened groups over time. RESULTS Early detection of prevalent cases accounted for 52%, 30%, and 18% of deaths prevented by screening colonoscopy within 5, 10, and 15 years, respectively. Relative reduction of mortality was estimated to be much larger for mortality from incident cancers than for mortality from cancers that were already present and detected early at screening endoscopy and for total CRC mortality (ie, 88% versus 67% and 79%, respectively, within 10 years from screening). CONCLUSIONS Reduction of CRC mortality mainly arises from early detection of prevalent cancers during the early years after screening colonoscopy, but prevention of incident cases accounts for the majority of prevented deaths in the longer run. Prevention of incident cases leads to sustained strong reduction of CRC mortality, possibly warranting an extension of screening intervals.
Collapse
Affiliation(s)
- Thomas Heisser
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Dmitry Sergeev
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany; Medical Faculty Heidelberg, University of Heidelberg, Heidelberg, Germany
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany; Division of Preventive Oncology, German Cancer Research Center and National Center for Tumor Diseases, Heidelberg, Germany; German Cancer Consortium, German Cancer Research Center, Heidelberg, Germany
| |
Collapse
|
5
|
Zheng L, Li B, Lei L, Wang LJ, Zeng ZP, Yang JD. Effect of screening colonoscopy frequency on colorectal cancer mortality in patients with a family history of colorectal cancer. World J Gastrointest Oncol 2024; 16:354-363. [PMID: 38425395 PMCID: PMC10900162 DOI: 10.4251/wjgo.v16.i2.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/13/2023] [Accepted: 12/11/2023] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Colorectal cancer is a common malignant tumor in China, and its incidence in the elderly is increasing annually. Inflammatory bowel disease is a group of chronic non-specific intestinal inflammatory diseases, including ulcerative colitis and Crohn's disease. AIM To assess the effect of screening colonoscopy frequency on colorectal cancer mortality. METHODS We included the clinicopathological and follow-up data of patients with colorectal cancer who underwent laparoscopic colectomy or open colectomy at our Gastrointestinal Department between January 2019 and December 2022. Surgical indicators, oncological indicators, and survival rates were compared between the groups. The results of 104 patients who met the above criteria were extracted from the database (laparoscopic colectomy group = 63, open colectomy group = 41), and there were no statistically significant differences in the baseline data or follow-up time between the two groups. RESULTS Intraoperative blood loss, time to first ambulation, and time to first fluid intake were significantly lower in the laparoscopic colectomy group than in the open colectomy group. The differences in overall mortality, tumor-related mortality, and recurrence rates between the two groups were not statistically significant, and survival analysis showed that the differences in the cumulative overall survival, tumor-related survival, and cumulative recurrence-free rates between the two groups were not statistically significant. CONCLUSION In elderly patients with colorectal cancer, laparoscopic colectomy has better short-term outcomes than open colectomy, and laparoscopic colectomy has superior long-term survival outcomes compared with open colectomy.
Collapse
Affiliation(s)
- Li Zheng
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Bin Li
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Ling Lei
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Li-Jia Wang
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Zhi-Ping Zeng
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Jian-Dong Yang
- Department of General Surgery, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| |
Collapse
|
6
|
Juul FE, Cross AJ, Schoen RE, Senore C, Pinsky PF, Miller EA, Segnan N, Wooldrage K, Wieszczy-Szczepanik P, Armaroli P, Garborg KK, Adami HO, Hoff G, Kalager M, Bretthauer M, Holme Ø, Løberg M. Effectiveness of Colonoscopy Screening vs Sigmoidoscopy Screening in Colorectal Cancer. JAMA Netw Open 2024; 7:e240007. [PMID: 38421651 PMCID: PMC10905314 DOI: 10.1001/jamanetworkopen.2024.0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/02/2024] [Indexed: 03/02/2024] Open
Abstract
Importance Randomized clinical screening trials have shown that sigmoidoscopy screening reduces colorectal cancer (CRC) incidence and mortality. Colonoscopy has largely replaced sigmoidoscopy for CRC screening, but long-term results from randomized trials on colonoscopy screening are still lacking. Objective To estimate the additional screening benefit of colonoscopy compared with sigmoidoscopy. Design, Setting, and Participants This comparative effectiveness simulation study pooled data on 358 204 men and women randomly assigned to sigmoidoscopy screening or usual care in 4 randomized sigmoidoscopy screening trials conducted in Norway, Italy, the US, and UK with inclusion periods in the years 1993 to 2001. The primary analysis of the study was conducted from January 19 to December 30, 2021. Intervention Invitation to endoscopic screening. Main Outcomes and Measures Primary outcomes were CRC incidence and mortality. Using pooled 15-year follow-up data, colonoscopy screening effectiveness was estimated assuming that the efficacy of colonoscopy in the proximal colon was similar to that observed in the distal colon in the sigmoidoscopy screening trials. The simulation model was validated using data from Norwegian participants in a colonoscopy screening trial. Results This analysis included 358 204 individuals (181 971 women [51%]) aged 55 to 64 years at inclusion with a median follow-up time ranging from 15 to 17 years. Compared with usual care, colonoscopy prevented an estimated 50 (95% CI, 42-58) CRC cases per 100 000 person-years, corresponding to 30% incidence reduction (rate ratio, 0.70 [95% CI, 0.66-0.75]), and prevented an estimated 15 (95% CI, 11-19) CRC deaths per 100 000 person-years, corresponding to 32% mortality reduction (rate ratio, 0.68 [95% CI, 0.61-0.76]). The additional benefit of colonoscopy screening compared with sigmoidoscopy was 12 (95% CI, 10-14) fewer CRC cases and 4 (95% CI, 3-5) fewer CRC deaths per 100 000 person-years, corresponding to percentage point reductions of 6.9 (95% CI, 6.0-7.9) for CRC incidence and 7.6 (95% CI, 5.7-9.6) for CRC mortality. The number needed to switch from sigmoidoscopy to colonoscopy screening was 560 (95% CI, 486-661) to prevent 1 CRC case and 1611 (95% CI, 1275-2188) to prevent 1 CRC death. Conclusions and Relevance The findings of this comparative effectiveness study assessing long-term follow-up after CRC screening suggest that there was an additional preventive effect on CRC incidence and mortality associated with colonoscopy screening compared with sigmoidoscopy screening, but the additional preventive effect was less than what was achieved by introducing sigmoidoscopy screening where no screening existed. The results probably represent the upper limit of what may be achieved with colonoscopy screening compared with sigmoidoscopy screening.
Collapse
Affiliation(s)
- Frederik E. Juul
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
| | - Amanda J. Cross
- Cancer Screening & Prevention Research Group, Department of Surgery & Cancer, Imperial College London, London, United Kingdom
| | - Robert E. Schoen
- Division of Gastroenterology, Hepatology and Nutrition, Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Carlo Senore
- University Hospital Città della Salute e della Scienza, Turin, Italy
| | - Paul F. Pinsky
- Division of Cancer Prevention, National Cancer Institute, Rockville, Maryland
| | - Eric A. Miller
- Division of Cancer Prevention, National Cancer Institute, Rockville, Maryland
| | - Nereo Segnan
- University Hospital Città della Salute e della Scienza, Turin, Italy
| | - Kate Wooldrage
- Cancer Screening & Prevention Research Group, Department of Surgery & Cancer, Imperial College London, London, United Kingdom
| | - Paulina Wieszczy-Szczepanik
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Paola Armaroli
- University Hospital Città della Salute e della Scienza, Turin, Italy
| | - Kjetil K. Garborg
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
| | - Hans-Olov Adami
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Geir Hoff
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway
- Department of Research and Development, Telemark Hospital Trust, Skien, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Mette Kalager
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
| | - Michael Bretthauer
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
| | - Øyvind Holme
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
- Department of Medicine, Sorlandet Hospital Health Trust, Kristiansand, Norway
| | - Magnus Løberg
- Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
7
|
Chauca Strand G, Strömberg U, Forsberg A, Bonander C. Impact of organised colorectal cancer screening on age-specific population incidences: evidence from a quasi-experimental study in Sweden. Eur J Epidemiol 2024; 39:87-96. [PMID: 38177571 PMCID: PMC10810926 DOI: 10.1007/s10654-023-01073-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/26/2023] [Indexed: 01/06/2024]
Abstract
Colorectal cancer (CRC) incurs a significant disease burden globally. Organised CRC screening programmes have been widely implemented for early detection and prevention. To understand the public health impact of these programmes, quantitative evidence of changes in overall and age-specific population incidences is fundamental. We aimed to provide such evidence by exploiting a time lag in the implementation of organised screening in Sweden: two out of 21 regions (these two regions comprise nearly 20% of the total Swedish population) have offered organised screening since 2008; the other regions have offered CRC screening since 2021. Using registry data on diagnosed CRC cases and socio-demographics for all regions in Sweden over the period 1970-2019, Bayesian structural time series modelling and difference-in-differences were applied to analyse the impact of screening on age-specific population incidences over time (CRC cases per 100.000 persons/year). After inviting birth-year cohorts aged 60-69 years for stool-based testing, the incidence rate in the 70-74-year age group decreased significantly over time, with an average reduction of - 44·40 (95% CI - 58·15 to - 31·31) from 2011 to 2019 in the intervention regions. In the overall population aged 60-74 years, there was a net incidence decrease of - 7·99 (95% CI - 13·85 to - 2·39) since the initiation of organised screening in the intervention regions (2008-2019). Organised CRC screening for 60-69-year-olds generated a change in age-specific incidence patterns with a long-lasting incidence decrease in the 70-74-year-old population, implying reductions in the excess mortality and burden of the disease.
Collapse
Affiliation(s)
- Gabriella Chauca Strand
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, PO Box 469, 405 30, Gothenburg, Sweden.
| | - Ulf Strömberg
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, PO Box 469, 405 30, Gothenburg, Sweden
| | - Anna Forsberg
- Department of Medicine K2, Solna, 171 76, Stockholm, Karolinska Institutet, Sweden
| | - Carl Bonander
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, PO Box 469, 405 30, Gothenburg, Sweden
| |
Collapse
|
8
|
Angrist JD, Hull P. Instrumental variables methods reconcile intention-to-screen effects across pragmatic cancer screening trials. Proc Natl Acad Sci U S A 2023; 120:e2311556120. [PMID: 38100416 PMCID: PMC10742387 DOI: 10.1073/pnas.2311556120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/03/2023] [Indexed: 12/17/2023] Open
Abstract
Pragmatic cancer screening trials mimic real-world scenarios in which patients and doctors are the ultimate arbiters of treatment. Intention-to-screen (ITS) analyses of such trials maintain randomization-based apples-to-apples comparisons, but differential adherence (the failure of subjects assigned to screening to get screened) makes ITS effects hard to compare across trials and sites. We show how instrumental variables (IV) methods address the nonadherence challenge in a comparison of estimates from 17 sites in five randomized trials measuring screening effects on colorectal cancer incidence. While adherence rates and ITS estimates vary widely across and within trials, IV estimates of per-protocol screening effects are remarkably consistent. An application of simple IV tools, including graphical analysis and formal statistical tests, shows how differential adherence explains variation in ITS impact. Screening compliers are also shown to have demographic characteristics similar to those of the full trial study sample. These findings argue for the clinical relevance of IV estimates of cancer screening effects.
Collapse
Affiliation(s)
- Joshua D. Angrist
- Department of Economics and National Bureau of Economic Research, Massachusetts Institute of Technology, Cambridge, MA02142
| | - Peter Hull
- Department of Economics and National Bureau of Economic Research, Brown University, Providence, RI02912
| |
Collapse
|
9
|
Anderson JC, Rex DK. Performing High-Quality, Safe, Cost-Effective, and Efficient Basic Colonoscopy in 2023: Advice From Two Experts. Am J Gastroenterol 2023; 118:1779-1786. [PMID: 37463252 DOI: 10.14309/ajg.0000000000002407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/05/2023] [Indexed: 07/20/2023]
Abstract
Based on published evidence and our expert experience, we provide recommendations to maximize the efficacy, safety, efficiency, and cost-effectiveness of routine colonoscopy. High-quality colonoscopy begins with colon preparation using a split or same-day dose and preferably a low-volume regimen for optimal patient tolerance and compliance. Successful cecal intubation can be achieved by choosing the correct colonoscope and using techniques to facilitate navigation through challenges such as severe angulations and redundant colons. Safety is a primary goal, and complications such as perforation and splenic rupture can be prevented by avoiding pushing through fixed resistance and avoiding loops in proximal colon. Furthermore, barotrauma can be avoided by converting to water filling only (no gas insufflation) in every patient with a narrowed, angulated sigmoid. Optimal polyp detection relies primarily on compulsive attention to inspection as manifested by adequate inspection time, vigorous probing of the spaces between haustral folds, washing and removing residual debris, and achieving full distention. Achieving minimum recommended adenoma detection rate thresholds (30% in men and 20% in women) is mandatory, and colonoscopists should aspire to adenoma detection rate approaching 50% in screening patients. Distal attachments can improve mucosal exposure and increase detection while shortening withdrawal times. Complete resection of polyps complements polyp detection in preventing colorectal cancer. Cold resection is the preferred method for all polyps < 10 mm. For effective cold resection, an adequate rim of normal tissue should be captured in the snare. Finally, cost-effective high-quality colonoscopy requires the procedure not be overused, as demonstrated by following updated United States Multi Society Task Force on Colorectal Cancer postpolypectomy surveillance recommendations.
Collapse
Affiliation(s)
- Joseph C Anderson
- Division of Gastroenterology, Department of Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
- Division of Gastroenterology, Department of Medicine, White River Junction VAMC, White River Junction, Vermont, USA
- Division of Gastroenterology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Douglas K Rex
- Department of Medicine, Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| |
Collapse
|
10
|
Powell K, Prasad V. Interpreting the results from the first randomised controlled trial of colonoscopy: does it save lives? BMJ Evid Based Med 2023; 28:306-308. [PMID: 36754585 PMCID: PMC10579474 DOI: 10.1136/bmjebm-2022-112155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/29/2023] [Indexed: 02/10/2023]
Affiliation(s)
- Kerrington Powell
- School of Medicine, Texas A&M Health Science Center, Bryan, Texas, USA
| | - Vinay Prasad
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| |
Collapse
|
11
|
Song M, Bretthauer M. Interpreting epidemiologic studies of colonoscopy screening for colorectal cancer prevention: understanding the mechanisms of action is key. Eur J Epidemiol 2023; 38:929-931. [PMID: 37667139 DOI: 10.1007/s10654-023-01043-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 09/06/2023]
Affiliation(s)
- Mingyang Song
- Departments of Epidemiology and Nutrition, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Kresge 801A, Boston, MA, USA.
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
| | - Michael Bretthauer
- Institute of Health and Society, University of Oslo, Oslo, Norway
- Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
12
|
Corley DA, Jensen CD, Chubak J, Schottinger JE, Halm EA, Udaltsova N. Evaluating Different Approaches for Calculating Adenoma Detection Rate: Is Screening Colonoscopy the Gold Standard? Gastroenterology 2023; 165:784-787.e4. [PMID: 37263304 PMCID: PMC10529997 DOI: 10.1053/j.gastro.2023.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 06/03/2023]
Affiliation(s)
- Douglas A Corley
- Division of Research, Kaiser Permanente Northern California, Oakland, California.
| | - Christopher D Jensen
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Jessica Chubak
- Kaiser Permanente Washington Health Research Institute, Kaiser Permanente Washington, Seattle, Washington
| | | | - Ethan A Halm
- Rutgers Biological Health Sciences, Rutgers University, New Brunswick, New Jersey
| | - Natalia Udaltsova
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| |
Collapse
|
13
|
Bretthauer M, Løberg M, Kaminski MF. Colonoscopy Screening and Colorectal Cancer Incidence and Mortality. Reply. N Engl J Med 2023; 388:378-379. [PMID: 36720141 DOI: 10.1056/nejmc2215192] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | | | - Michal F Kaminski
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| |
Collapse
|