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Macrae F. Balancing the burden and benefits of colonoscopy in Lynch Syndrome. Fam Cancer 2023; 22:399-401. [PMID: 37713026 DOI: 10.1007/s10689-023-00347-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2023] [Indexed: 09/16/2023]
Affiliation(s)
- Finlay Macrae
- Department of Colorectal Medicine and Genetics, The Royal Melbourne Hospital, and Dept of Medicine, University of Melbourne, Melbourne, Australia, PO Box 2010 Royal Melbourne Hospital, 3050, Melbourne, Victoria, Australia.
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Moodley Y, van Wyk J, Ning Y, Wexner S, Gounden C, Naidoo V, Kader S, Neugut AI, Kiran RP. Self-adherence to post-colonoscopy consults in patients undergoing diagnostic colonoscopy: Findings from a cross-sectional, quantitative survey at a South African quaternary hospital. PLoS One 2023; 18:e0288752. [PMID: 37463177 PMCID: PMC10353782 DOI: 10.1371/journal.pone.0288752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023] Open
Abstract
Post-colonoscopy consults empower patients to make informed decisions around their subsequent treatment, and non-compliance with these consults ("no-shows") hinders disease management. There is a paucity in the literature regarding self-adherence to post-colonoscopy consults in resource-limited settings such as South Africa. An understanding of self-adherence to post-colonoscopy consults in this setting is required to establish whether improved interventions are needed, and what specific elements of self-adherence should be addressed with these interventions. The objective of this hypothesis-generating, cross-sectional, quantitative survey was to conduct a baseline assessment of cognitive, motivational, social, and behavioural variables related to self-adherence to post-colonoscopy consults in patients who underwent diagnostic colonoscopy at a South African quaternary hospital. The Adherence Determinants Questionnaire (ADQ) was administered in 47 patients to establish a baseline assessment of elements related to self-adherence to post-colonoscopy consults, including interpersonal aspects of care, perceived utility, severity, susceptibility, subjective norms, intentions, and supports/barriers. ADQ scores were transformed to a percentage of the maximum score for each element (100.0%). The overall mean transformed ADQ score was 57.8%. The mean transformed scores for specific ADQ components were as follows: subjective norms (40.8%), perceived severity (55.4%), perceived utility (56.6%), intentions (59.4%), supports/barriers (59.9%), interpersonal aspects (62.2%), and perceived susceptibility (65.9%). There were no statistically significant differences in overall mean transformed ADQ scores and individual ADQ elements across categories of participant age (p-values ranging between 0.180 and 0.949 when compared between participants ≤40 years and >40 years old), gender (p-values ranging between 0.071 and 0.946 when compared between males and females), and race (p-values ranging between 0.119 and 0.774 when compared between Black Africans and non-Black Africans). Our findings suggest a general need for appropriate interventions to improve self-adherence to post-colonoscopy consults in our setting.
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Affiliation(s)
- Yoshan Moodley
- Gastrointestinal Cancer Research Group, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Jacqueline van Wyk
- Department of Health Sciences Education, University of Cape Town, Cape Town, South Africa
- School of Clinical Medicine, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Yuming Ning
- Department of Surgery, Columbia University, New York, NY, United States of America
| | - Steven Wexner
- Ellen Leifer Shulman and Steven Shulman Digestive Disease Center, Cleveland Clinic Florida, Weston, Florida, United States of America
| | - Cathrine Gounden
- Gastrointestinal Cancer Research Group, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Vasudevan Naidoo
- Gastrointestinal Cancer Research Group, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Shakeel Kader
- Gastrointestinal Cancer Research Group, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Alfred I. Neugut
- Department of Medicine and Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, United States of America
| | - Ravi P. Kiran
- Department of Surgery, Columbia University, New York, NY, United States of America
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Paszat L, Sutradhar R, Luo J, Tinmouth J, Rabeneck L, Baxter NN. Uptake and Short-term Outcomes of High-risk Screening Colonoscopy Billing Codes: A Population-based Study Among Young Adults. J Can Assoc Gastroenterol 2022; 5:86-95. [PMID: 35368324 PMCID: PMC8972288 DOI: 10.1093/jcag/gwab014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/14/2021] [Indexed: 01/03/2023] Open
Abstract
Background Persons suspected or confirmed with familial colorectal cancer syndrome are recommended to have biennial colonoscopy from late adolescence or early adulthood. Persons without a syndrome but with one or more affected first-degree relatives are recommended to begin colonoscopy 10 years before the age at diagnosis of the youngest affected relative, and every 5 to 10 years. Ontario introduced colonoscopy billing codes for these two indications in 2011. Methods We identified persons in Ontario under 50 years of age, without a prior history of colorectal cancer or inflammatory bowel disease, with one or more of these billing claims between 2013 and 2017. We described the index colonoscopy, and subsequent colonoscopy up-to-date status. We computed average annual rates of colorectal and other cancer diagnoses, and displayed mean cumulative function plots, stratified by billing code, age and sex. Results Billing claims for ‘familial syndrome’ high-risk screening colonoscopy were identified among 14,846 persons; the average annual rate of CRC diagnoses was 38.6 per 100,000 among males and 22.2 among females. Colonoscopy up-to-date status fell to 50% within 7 years. Billing claims for ‘first-degree relative’ screening colonoscopy was identified among 49,505 persons; average annual rates of CRC diagnoses were 16.3 among males and 13.5 per 100,000 among females, respectively. Conclusion Colorectal cancer was more frequent following billing claims for high-risk screening colonoscopy for familial syndromes, as were noncolorectal malignancies potentially associated with these syndromes. This billing claim for familial colorectal cancer syndrome colonoscopy appears to identify a group at elevated short-term risk for cancer.
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Affiliation(s)
- Lawrence Paszat
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Rinku Sutradhar
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Jin Luo
- Cancer Research Programme, Institute for Clinical Evaluative Sciences (ICES), Toronto, Ontario, Canada
| | - Jill Tinmouth
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Linda Rabeneck
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Nancy N Baxter
- School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
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Olivier R, Randrian V, Tougeron D, Saurin JC. Endoscopy to Diagnose and Prevent Digestive Cancers in Lynch Syndrome. Cancers (Basel) 2021; 13:cancers13143505. [PMID: 34298719 PMCID: PMC8305049 DOI: 10.3390/cancers13143505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/23/2021] [Accepted: 07/09/2021] [Indexed: 12/15/2022] Open
Abstract
Lynch syndrome patients could benefit from various recommendations to prevent digestive cancers. In this review, we summarize the criteria to identify Lynch syndrome in patients with digestive cancers. We detail endoscopic screening procedures in patients with Lynch syndrome for gastric, small bowel, pancreatic, and colorectal cancers. We review the precise modalities of endoscopic follow-up, particularly the discrepancies that exist between the guidelines of the various scientific societies. We discuss the treatment of colorectal cancers in Lynch syndrome cases and patient adherence to endoscopic follow-up programs.
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Affiliation(s)
- Raphael Olivier
- Gastroenterology Department, Poitiers University Hospital (CHU de Poitiers), 86000 Poitiers, France; (V.R.); (D.T.)
- Correspondence: ; Tel.:+33-05-49-44-37-51; Fax: +33-05-49-44-38-35
| | - Violaine Randrian
- Gastroenterology Department, Poitiers University Hospital (CHU de Poitiers), 86000 Poitiers, France; (V.R.); (D.T.)
| | - David Tougeron
- Gastroenterology Department, Poitiers University Hospital (CHU de Poitiers), 86000 Poitiers, France; (V.R.); (D.T.)
| | - Jean-Christophe Saurin
- Gastroenterology Department, Hospices Civils de Lyon—Centre Hospitalier Universitaire, 69002 Lyon, France;
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Rentoft M, Svensson D, Sjödin A, Olason PI, Sjöström O, Nylander C, Osterman P, Sjögren R, Netotea S, Wibom C, Cederquist K, Chabes A, Trygg J, Melin BS, Johansson E. A geographically matched control population efficiently limits the number of candidate disease-causing variants in an unbiased whole-genome analysis. PLoS One 2019; 14:e0213350. [PMID: 30917156 PMCID: PMC6436687 DOI: 10.1371/journal.pone.0213350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 02/11/2019] [Indexed: 12/18/2022] Open
Abstract
Whole-genome sequencing is a promising approach for human autosomal dominant disease studies. However, the vast number of genetic variants observed by this method constitutes a challenge when trying to identify the causal variants. This is often handled by restricting disease studies to the most damaging variants, e.g. those found in coding regions, and overlooking the remaining genetic variation. Such a biased approach explains in part why the genetic causes of many families with dominantly inherited diseases, in spite of being included in whole-genome sequencing studies, are left unsolved today. Here we explore the use of a geographically matched control population to minimize the number of candidate disease-causing variants without excluding variants based on assumptions on genomic position or functional predictions. To exemplify the benefit of the geographically matched control population we apply a typical disease variant filtering strategy in a family with an autosomal dominant form of colorectal cancer. With the use of the geographically matched control population we end up with 26 candidate variants genome wide. This is in contrast to the tens of thousands of candidates left when only making use of available public variant datasets. The effect of the local control population is dual, it (1) reduces the total number of candidate variants shared between affected individuals, and more importantly (2) increases the rate by which the number of candidate variants are reduced as additional affected family members are included in the filtering strategy. We demonstrate that the application of a geographically matched control population effectively limits the number of candidate disease-causing variants and may provide the means by which variants suitable for functional studies are identified genome wide.
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Affiliation(s)
- Matilda Rentoft
- Department of Medical Biochemistry and Biophysics, Umeå University, SE Umeå, Sweden
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
| | - Daniel Svensson
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
| | - Andreas Sjödin
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
- Division of CBRN Security and Defence, FOI–Swedish Defence Research Agency, SE Umeå, Sweden
| | - Pall I. Olason
- Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University, SE Uppsala, Sweden
| | - Olle Sjöström
- Department of Radiation Sciences, Oncology, Umeå University, SE Umeå, Sweden
- Unit of research, education and development, Region Jämtland Härjedalen, SE Östersund, Sweden
| | - Carin Nylander
- Department of Radiation Sciences, Oncology, Umeå University, SE Umeå, Sweden
| | - Pia Osterman
- Department of Medical Biochemistry and Biophysics, Umeå University, SE Umeå, Sweden
| | - Rickard Sjögren
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
| | - Sergiu Netotea
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
- Science for Life Laboratory, Department of Biology and Biological Engineering, Chalmers University of Technology, SE Göteborg, Sweden
| | - Carl Wibom
- Department of Radiation Sciences, Oncology, Umeå University, SE Umeå, Sweden
| | - Kristina Cederquist
- Department of Medical Biosciences, Medical and Clinical Genetics, Umeå University, SE Umeå, Sweden
| | - Andrei Chabes
- Department of Medical Biochemistry and Biophysics, Umeå University, SE Umeå, Sweden
| | - Johan Trygg
- Computational Life Science Cluster, Department of Chemistry, Umeå University, SE Umeå, Sweden
| | - Beatrice S. Melin
- Department of Radiation Sciences, Oncology, Umeå University, SE Umeå, Sweden
| | - Erik Johansson
- Department of Medical Biochemistry and Biophysics, Umeå University, SE Umeå, Sweden
- * E-mail:
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Sjöström O, Lindholm L, Melin B. Colonoscopic surveillance - a cost-effective method to prevent hereditary and familial colorectal cancer. Scand J Gastroenterol 2017; 52:1002-1007. [PMID: 28587529 DOI: 10.1080/00365521.2017.1327615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Approximately 20-30% of all colorectal cancer (CRC) cases may have a familial contribution. The family history of CRC can be prominent (e.g., hereditary colorectal cancer (HCRC)) or more moderate (e.g., familial colorectal cancer (FCRC)). For family members at risk, colonoscopic surveillance is a well-established method to prevent both HCRC and FCRC, although the evidence for the exact procedures of the surveillance is limited. Surveillance can come at a high price if individuals are frequently examined, as this may result in unnecessary colonoscopies in relation to actual risk for CRC. This study analyses the cost-effectiveness of a surveillance programme implemented in the Northern Sweden Health Care Region. METHODS The study includes 259 individuals prospectively recorded in the colonoscopic surveillance programme registry at the Cancer Prevention Clinic, Umeå University Hospital. We performed a cost-utility analysis with a contrafactual design: we compared observed costs and loss of quality-adjusted life years (QALYs) due to CRC with the surveillance programme to an expected outcome without surveillance. The main measure was the incremental cost-effectiveness ratio (ICER) between surveillance and non-surveillance. Scenario analysis was used to explore uncertainty. RESULTS The ICER between surveillance and non-surveillance in the base model was 3596€/QALY. The ICER varied from -4620€ in the best-case scenario to 33,779€ in the worst-case scenario. CONCLUSION Colonoscopic surveillance is a very cost-effective method to prevent HCRC and FCRC compared to current thresholds for cost-effectiveness and other cancer preventive interventions.
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Affiliation(s)
- Olle Sjöström
- a Department of Radiation Sciences, Oncology , Umeå University , Umeå , Sweden
| | - Lars Lindholm
- b Department of Public Health and Clinical Medicine, Epidemiology and Global Health , Umeå University , Umeå , Sweden
| | - Beatrice Melin
- a Department of Radiation Sciences, Oncology , Umeå University , Umeå , Sweden
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