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Gavric A, Sanchez LR, Brunori A, Bravo R, Balaguer F, Pellisé M. Endoscopic management of patients with familial adenomatous polyposis after prophylactic colectomy or restorative proctocolectomy - systematic review of the literature. Radiol Oncol 2024; 58:153-169. [PMID: 38860690 PMCID: PMC11202397 DOI: 10.2478/raon-2024-0029] [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: 03/06/2024] [Accepted: 04/16/2024] [Indexed: 06/12/2024] Open
Abstract
BACKGROUND Patients with familial adenomatous polyposis (FAP) develop early colorectal adenomas and if left untreated, progression to cancer is an inevitable event. Prophylactic surgery does not prevent further development of cancer in the rectal remnant, rectal cuff in patients with ileal pouch anal anastomosis (IPAA) and even on the ileal mucosa of the pouch body. The aim of this review is to assess long-term rates of cancer and adenoma development in patients with FAP after prophylactic surgery and to summarise current recommendations for endoscopic management and surveillance of these patients. MATERIALS AND METHODS A systematic literature search of studies from January 1946 through to June 2023 was conducted using the PRISMA checklist. The electronic database PubMed was searched. RESULTS Fifty-four papers involving 5010 patients were reviewed. Cancer rate in the rectal remnant was 8.8-16.7% in the western population and 37% in the eastern population. The cumulative risk of cancer 30 years after surgery was 24%. Mortality due to cancer in the rectal remnant is 1.1-11.1% with a 5-year survival rate of 55%. The adenoma rate after primary IPAA was 9.4-85% with a cumulative risk of 85% 20 years after surgery and a cumulative risk of 12% for advanced adenomas 10 years after surgery. Cumulative risk for adenomas after ileorectal anastomosis (IRA) was 85% after 5 and 100% after 10 years. Adenomas developed more frequently after stapled (33.9-57%) compared to hand-sewn (0-33%) anastomosis. We identified reports of 45 cancers in patients after IPAA of which 30 were in the pouch body and 15 in the rectal cuff or at the anastomosis. CONCLUSIONS There was a significant incidence of cancer and adenomas in the rectal remnant and ileal pouch of FAP patients during the long-term follow-up. Regular endoscopic surveillance is recommended, not only in IRA patients, but also in pouch patients after proctocolectomy.
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Affiliation(s)
- Aleksandar Gavric
- Department of Gastroenterology and Hepatology, University Medical Centre Ljubljana, Slovenia
| | - Liseth Rivero Sanchez
- Department of Gastroenterology, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d’Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Center for Biomedical Research in the Hepatic and Digestive Diseases Network (CIBERehd), Barcelona, Spain
| | - Angelo Brunori
- Department of Gastroenterology, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d’Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Center for Biomedical Research in the Hepatic and Digestive Diseases Network (CIBERehd), Barcelona, Spain
| | - Raquel Bravo
- Institut d’Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Center for Biomedical Research in the Hepatic and Digestive Diseases Network (CIBERehd), Barcelona, Spain
- Surgery Department, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Francesc Balaguer
- Department of Gastroenterology, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d’Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Center for Biomedical Research in the Hepatic and Digestive Diseases Network (CIBERehd), Barcelona, Spain
| | - Maria Pellisé
- Department of Gastroenterology, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d’Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Center for Biomedical Research in the Hepatic and Digestive Diseases Network (CIBERehd), Barcelona, Spain
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Helderman NC, van Leerdam ME, Kloor M, Ahadova A, Nielsen M. Emerge of colorectal cancer in Lynch syndrome despite colonoscopy surveillance: A challenge of hide and seek. Crit Rev Oncol Hematol 2024; 197:104331. [PMID: 38521284 DOI: 10.1016/j.critrevonc.2024.104331] [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: 01/13/2024] [Revised: 03/09/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024] Open
Abstract
Even with colonoscopy surveillance, Lynch syndromes (LS) carriers still develop colorectal cancer (CRC). The cumulative incidence of CRCs under colonoscopy surveillance varies depending on the affected mismatch repair (MMR) gene. However, the precise mechanisms driving these epidemiological patterns remain incompletely understood. In recent years, several potential mechanisms explaining the occurrence of CRCs during colonoscopy surveillance have been proposed in individuals with and without LS. These encompass biological factors like concealed/accelerated carcinogenesis through a bypassed adenoma stage and accelerated progression from adenomas. Alongside these, various colonoscopy-related factors may contribute to formation of CRCs under colonoscopy surveillance, like missed yet detectable (pre)cancerous lesions, detected yet incompletely removed (pre)cancerous lesions, and colonoscopy-induced carcinogenesis due to tumor cell reimplantation. In this comprehensive literature update, we reviewed these potential factors and evaluated their relevance to each MMR group in an attempt to raise further awareness and stimulate research regarding this conflicting phenomenon.
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Affiliation(s)
- Noah C Helderman
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands.
| | - Monique E van Leerdam
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Matthias Kloor
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Aysel Ahadova
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Maartje Nielsen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands
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Lecomte T, Tougeron D, Chautard R, Bressand D, Bibeau F, Blanc B, Cohen R, Jacques J, Lagasse JP, Laurent-Puig P, Lepage C, Lucidarme O, Martin-Babau J, Panis Y, Portales F, Taieb J, Aparicio T, Bouché O. Non-metastatic colon cancer: French Intergroup Clinical Practice Guidelines for diagnosis, treatments, and follow-up (TNCD, SNFGE, FFCD, GERCOR, UNICANCER, SFCD, SFED, SFRO, ACHBT, SFP, AFEF, and SFR). Dig Liver Dis 2024; 56:756-769. [PMID: 38383162 DOI: 10.1016/j.dld.2024.01.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 01/25/2024] [Accepted: 01/28/2024] [Indexed: 02/23/2024]
Abstract
INTRODUCTION This article is a summary of the French intergroup guidelines regarding the management of non-metastatic colon cancer (CC), revised in November 2022. METHODS These guidelines represent collaborative work of all French medical and surgical societies involved in the management of CC. Recommendations were graded in three categories (A, B, and C) according to the level of evidence found in the literature published up to November 2022. RESULTS Initial evaluation of CC is based on clinical examination, colonoscopy, chest-abdomen-pelvis computed tomography (CT) scan, and carcinoembryonic antigen (CEA) assay. CC is usually managed by surgery and adjuvant treatment depending on the pathological findings. The use of adjuvant therapy remains a challenging question in stage II disease. For high-risk stage II CC, adjuvant chemotherapy must be discussed and fluoropyrimidine monotherapy or oxaliplatin-based chemotherapy proposed according to the type and number of poor prognostic features. Oxaliplatin-based chemotherapy (FOLFOX or CAPOX) is the current standard for adjuvant therapy of patients with stage III CC. However, these regimens are associated with significant oxaliplatin-induced neurotoxicity. The results of the recent IDEA study provide evidence that 3 months of treatment with CAPOX is as effective as 6 months of oxaliplatin-based therapy in patients with low-risk stage III CC (T1-3 and N1). A 6-month oxaliplatin-based therapy remains the standard of care for high-risk stage III CC (T4 and/or N2). For patients unfit for oxaliplatin, fluoropyrimidine monotherapy is recommended. CONCLUSION French guidelines for non-metastatic CC management help to offer the best personalized therapeutic strategy in daily clinical practice. Each individual case must be discussed within a multidisciplinary tumor board and then the treatment option decided with the patient.
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Affiliation(s)
- Thierry Lecomte
- Department of Hepatogastroenterology and Digestive Oncology, Tours University Hospital, Tours, France; Inserm UMR 1069, Nutrition, Croissance et Cancer, Université de Tours, Tours, France.
| | - David Tougeron
- Department of Hepatogastroenterology, Poitiers University Hospital, Poitiers, France
| | - Romain Chautard
- Department of Hepatogastroenterology and Digestive Oncology, Tours University Hospital, Tours, France; Inserm UMR 1069, Nutrition, Croissance et Cancer, Université de Tours, Tours, France
| | - Diane Bressand
- Department of Hepatogastroenterology and Digestive Oncology, Tours University Hospital, Tours, France
| | - Frédéric Bibeau
- Department of Pathology, Besançon University Hospital, Besançon, France
| | - Benjamin Blanc
- Department of Digestive Surgery, Dax Hospital, Dax, France
| | - Romain Cohen
- Sorbonne Université, Department of Medical Oncology, Saint-Antoine hospital, AP-HP, Inserm, Unité Mixte de Recherche Scientifique 938 et SiRIC CURAMUS, Saint-Antoine Research Center, Paris, France
| | - Jérémie Jacques
- Department of Hepatogastroenterology, Limoges University Hospital, Limoges, France
| | - Jean-Paul Lagasse
- Department of Hepatogastroenterology and Digestive Oncology, Orléans University Hospital, Orléans, France
| | - Pierre Laurent-Puig
- Department of Biology, AP-HP, European Georges Pompidou Hospital, Paris, France
| | - Come Lepage
- Department of Hepatogastroenterology and Digestive Oncology, Dijon University Hospital, Dijon, France
| | - Olivier Lucidarme
- Department of Radiology, AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Jérôme Martin-Babau
- Armoricain Center of Radiotherapy, Radiology and Oncology, Côtes D'Armor Private Hospital, Plérin, France
| | - Yves Panis
- Department of Colorectal Surgery, AP-HP, Beaujon Hospital, Clichy, France
| | - Fabienne Portales
- Department of Medical Oncology, Institut du Cancer de Montpellier, Montpellier, France
| | - Julien Taieb
- Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, Paris, France
| | - Thomas Aparicio
- Department of Gastroenterology and Digestive Oncology, AP-HP, Saint-Louis Hospital, Paris, France
| | - Olivier Bouché
- Department of Digestive Oncology, Reims, CHU Reims, France
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Housini M, Dariya B, Ahmed N, Stevens A, Fiadjoe H, Nagaraju GP, Basha R. Colorectal cancer: Genetic alterations, novel biomarkers, current therapeutic strategies and clinical trials. Gene 2024; 892:147857. [PMID: 37783294 DOI: 10.1016/j.gene.2023.147857] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023]
Abstract
Colorectal cancer (CRC) is the third most commonly detected cancer with a serious global health issue. The rates for incidence and mortality for CRC are alarming, especially since the prognosis is abysmal when the CRC is diagnosed at an advanced or metastatic stage. Both type of (modifiable/ non-modifiable) types of risk factors are established for CRC. Despite the advances in recent technology and sophisticated research, the survival rate is still meager due to delays in diagnosis. Therefore, there is urgently required to identify critical biomarkers aiming at early diagnosis and improving effective therapeutic strategies. Additionally, a complete understanding of the dysregulated pathways like PI3K/Akt, Notch, and Wnt associated with CRC progression and metastasis is very beneficial in designing a therapeutic regimen. This review article focused on the dysregulated signaling pathways, genetics and epigenetics alterations, and crucial biomarkers of CRC. This review also provided the list of clinical trials targeting signaling cascades and therapies involving small molecules. This review discusses up-to-date information on novel diagnostic and therapeutic strategies alongside specific clinical trials.
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Affiliation(s)
- Mohammad Housini
- Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX 76107, United States
| | - Begum Dariya
- Center for Drug Design, University of Minnesota, Minneapolis, MN 5545, United States
| | - Nadia Ahmed
- Department of Diagnostic Radiology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Alyssa Stevens
- Missouri Southern State University, Joplin, MO 64801, United States
| | - Hope Fiadjoe
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, United States
| | - Ganji Purnachandra Nagaraju
- Division of Hematology & Oncology, The University of Alabama at Birmingham, Birmingham, AL 35233, United States.
| | - Riyaz Basha
- Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX 76107, United States; Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, United States.
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Ferreira AO, Reves JB, Nascimento C, Frias-Gomes C, Costa-Santos MP, Ramos LR, Palmela C, Gloria L, Cravo M, Dinis-Ribeiro M, Canena J. Narrow Band Imaging versus White Light for the Detection of Sessile Serrated Colorectal Lesions: A Randomized Clinical Trial. GE PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2023; 30:368-374. [PMID: 37868631 PMCID: PMC10586213 DOI: 10.1159/000526606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/14/2022] [Indexed: 10/24/2023]
Abstract
Background Colorectal cancer (CRC) is a leading cause of cancer. The detection of pre-malignant lesions by colonoscopy is associated with reduced CRC incidence and mortality. Narrow band imaging has shown promising but conflicting results for the detection of serrated lesions. Methods We performed a randomized clinical trial to compare the mean detection of serrated lesions and hyperplastic polyps ≥10 mm with NBI or high-definition white light (HD-WL) withdrawal. We also compared all sessile serrated lesions (SSLs), adenoma, and polyp prevalence and rates. Results Overall, 782 patients were randomized (WL group 392 patients; NBI group 390 patients). The average number of serrated lesions and hyperplastic polyps ≥10 mm detected per colonoscopy (primary endpoint) was similar between the HD-WL and NBI group (0.118 vs. 0.156, p = 0.44). Likewise, the adenoma detection rate (55.2% vs. 53.2%, p = 0.58) and SSL detection rate (6.8% vs. 7.5%, p = 0.502) were not different between the two study groups. Withdrawal time was higher in the NBI group (10.88 vs. 9.47 min, p = 0.004), with a statistically nonsignificant higher total procedure time (20.97 vs. 19.30 min, p = 0.052). Conclusions The routine utilization of narrow band imaging does not improve the detection of serrated class lesions or any pre-malignant lesion and increases the withdrawal time.
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Affiliation(s)
- Alexandre Oliveira Ferreira
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
- Department of Gastroenterology, Hospital da Luz Lisboa, Lisboa, Portugal
| | - Joana Branco Reves
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
| | | | | | - Maria Pia Costa-Santos
- Department of Gastroenterology, Hospital do Divino Espirito Santo, Ponta Delgada, Portugal
| | - Lídia Roque Ramos
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
- Department of Gastroenterology, Hospital da Luz Lisboa, Lisboa, Portugal
| | - Carolina Palmela
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
- Department of Gastroenterology, Hospital da Luz Lisboa, Lisboa, Portugal
| | - Luísa Gloria
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
| | - Marília Cravo
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
- Department of Gastroenterology, Hospital da Luz Lisboa, Lisboa, Portugal
| | - Mário Dinis-Ribeiro
- Department of Gastroenterology, Instituto Português de Oncologia, Porto, Portugal
- Cintesis, Center for Health Technology and Services Research, Porto, Portugal
| | - Jorge Canena
- Cintesis, Center for Health Technology and Services Research, Porto, Portugal
- Department of Gastroenterology, Nova Medical School/Faculty of Medical Sciences, Lisboa, Portugal
- University Center of Gastroenterology, Hospital Cuf Tejo, Lisbon, Portugal
- Department of Gastroenterology, Professor Doutor Fernando Fonseca Hospital, Amadora, Portugal
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Capogreco A, Alfarone L, Massimi D, Repici A. Cold resection for colorectal polyps: where we are and where we are going? Expert Rev Gastroenterol Hepatol 2023; 17:719-730. [PMID: 37318101 DOI: 10.1080/17474124.2023.2223976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Endoscopic resection of colonic precancerous lesions has been demonstrated to significantly decrease colorectal cancer (CRC) incidence and mortality. Among resection techniques, cold snare polypectomy (CSP) has been shown as a highly feasible, effective and safe option and is widely used in clinical practice, being regarded as the first-line technique for removal of small and diminutive colorectal polyps. On the other hand, conventional hot snare polypectomy (HSP) and endoscopic mucosal resection (EMR), namely the gold standard treatments for larger polyps, may be occasionally associated to complications due to electrocautery injury. AREAS COVERED To overcome these shortcomings of electrocautery-based resection techniques, in the last few years CSP has been increasingly assessed as a treatment option for additional indications, with a focus on nonpedunculated colorectal polyps ≥10 mm. EXPERT OPINION This review aims to present current and widened indications of CSP discussing the latest findings from the most remarkable studies, with an insight into technical issues, novelties and potential advances in the near future.
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Affiliation(s)
- Antonio Capogreco
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Ludovico Alfarone
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
- Department of biomedical scienses, Humanitas University, Milan, Italy
| | - Davide Massimi
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Alessandro Repici
- Department of biomedical scienses, Humanitas University, Milan, Italy
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Ma MX, Tate DJ, Sidhu M, Zahid S, Bourke MJ. Effect of pre-resection biopsy on detection of advanced dysplasia in large nonpedunculated colorectal polyps undergoing endoscopic mucosal resection. Endoscopy 2023; 55:267-273. [PMID: 35817086 DOI: 10.1055/a-1896-9798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND : Pre-resection biopsy (PRB) of large nonpedunculated colorectal polyps (LNPCPs, ≥ 20 mm) is often performed before referral for endoscopic mucosal resection (EMR). How this affects the EMR procedure is unknown. METHODS : This was a retrospective analysis of a prospectively collected cohort of patients with LNPCPs referred for EMR between 2013 to 2016 at an Australian tertiary center. Outcomes were differences between PRB and EMR histology, and effects of PRB on the EMR procedure. RESULTS: Among 586 LNPCPs, lesions that underwent PRB were larger (median 35 vs. 30 mm; P < 0.007), and more commonly morphologically flat or slightly elevated (P = 0.01) compared with lesions without PRB. PRB histology was upstaged in 26.1 %, downstaged in 13.8 %, and unchanged in 60.1 % after EMR. Sensitivity of PRB was 77.2 % (95 %CI 71.1-82.4) for low grade dysplasia (LGD) and 21.2 % (95 %CI 11.5-35.1) for high grade dysplasia (HGD). Where EMR specimen showed HGD, PRB had detected LGD in 76.9 %. Where EMR specimen showed cancer, PRB had detected dysplasia only. PRB was associated with more submucosal fibrosis (P = 0.001) and intraprocedural bleeding (P = 0.03). EMR success or recurrence was not affected. CONCLUSIONS: Routine PRB of LNPCP did not reliably detect advanced histology and may have affected EMR complexity. PRB should be utilized with caution in guiding endoscopic management of LNPCPs.
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Affiliation(s)
- Michael X Ma
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia
- Department of Gastroenterology and Hepatology, Fiona Stanley Hospital, Perth, Australia
- Department of Medicine, Midland St. John of God Hospital, Perth, Australia
| | - David J Tate
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Mayenaaz Sidhu
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Simmi Zahid
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Michael J Bourke
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
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Khuc T, Agarwal A, Li F, Kantsevoy S, Curtin B, Hagan M, Harris M, Maheshwari A, Raina A, Zhou E, Thuluvath P. Accuracy and Inter-observer Agreement Among Endoscopists for Visual Identification of Colorectal Polyps Using Endoscopy Images. Dig Dis Sci 2023; 68:616-622. [PMID: 35947305 DOI: 10.1007/s10620-022-07643-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/06/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND It is essential to accurately distinguish small benign hyperplastic colon polyps (HP) from sessile serrated lesions (SSL) or adenomatous polyps (TA) based on endoscopic appearances. Our objective was to determine the accuracy and inter-observer agreements for the endoscopic diagnosis of small polyps. METHODS High-quality endoscopic images of 30 small HPs, SSLs, and TAs were used randomly to create two-timed PowerPoint slide sets-one with and another one without information on polyp size and location. Seven endoscopists viewed the slides on two separate occasions 90 days apart, identified the polyp type, and graded their confidence level. Overall and polyp-specific accuracies were assessed for the group and individual endoscopists. Chi-square tests and Kappa (κ) statistics were used to compare differences as appropriate. RESULTS When polyp size and location were provided, overall accuracy was 67.1% for TAs, 50.0% for SSLs, and 41.4% for HPs; the corresponding accuracies were 60%, 44.3%, and 34.3% when polyp size and location were withheld (p < .001). Inter-observer agreement was moderate for TAs (κ = 0.50) and fair for SSLs (κ = 0.26) and HPs (κ = 0.29); the corresponding inter-observer agreements were 0.44, 0.31, and 0.17 with polyp size and location withheld. Accuracy was not affected by knowledge of polyp size, location, or confidence level. Endoscopists with ≥ 10 years (vs. < 10 years) of colonoscopy experience had marginally higher (56% vs. 40%, p = 0.05) accuracy for SSL diagnosis. CONCLUSIONS The ability to distinguish between small TAs, SSLs, and HPs on their endoscopic appearance is poor regardless of the endoscopists' knowledge of polyp size and location.
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Affiliation(s)
- Thi Khuc
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA.
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Amol Agarwal
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Feng Li
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Sergey Kantsevoy
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Bryan Curtin
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Matilda Hagan
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Mary Harris
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Anurag Maheshwari
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Amit Raina
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Elinor Zhou
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
| | - Paul Thuluvath
- Institute for Digestive Health and Liver Disease, Mercy Medical Center, Baltimore, MD, USA
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, USA
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Yuan X, Gong W, Hu B. Virtual indigo carmine dyeing: New artificial intelligence-based chromoendoscopy technique. Dig Endosc 2023; 35:e8-e10. [PMID: 36300847 DOI: 10.1111/den.14448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 09/30/2022] [Indexed: 01/17/2023]
Abstract
Watch a video of this article.
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Affiliation(s)
- Xianglei Yuan
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Gong
- Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
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10
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It's not lack of evidence holding back resect and discard. Gastrointest Endosc 2022; 96:1033-1035. [PMID: 36253191 DOI: 10.1016/j.gie.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/01/2022] [Indexed: 12/11/2022]
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Ahmad A, Moorghen M, Wilson A, Stasinos I, Haycock A, Humphries A, Monahan K, Suzuki N, Thomas-Gibson S, Vance M, Thiruvilangam K, Dhillon A, Saunders BP. Implementation of optical diagnosis with a "resect and discard" strategy in clinical practice: DISCARD3 study. Gastrointest Endosc 2022; 96:1021-1032.e2. [PMID: 35724693 DOI: 10.1016/j.gie.2022.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Optical diagnosis (OD) of polyps can be performed with advanced endoscopic imaging. For high-confidence diagnoses, a "resect and discard" strategy could offer significant histopathology time and cost savings. The implementation threshold is a ≥90% OD-histology surveillance interval concordance. Here we assessed the OD learning curve and feasibility of a resect and discard strategy for ≤5-mm and <10-mm polyps in a bowel cancer screening setting. METHODS In this prospective feasibility study, 8 bowel cancer screening endoscopists completed a validated OD training module and performed procedures. All <10-mm consecutive polyps had white-light and narrow-band images taken and were given high- or low-confidence diagnoses until 120 high-confidence ≤5-mm polyp diagnoses had been performed. All polyps had standard histology. High-confidence OD errors underwent root-cause analysis. Histology and OD-derived surveillance intervals were calculated. RESULTS Of 565 invited patients, 525 patients were included. A total of 1560 <10-mm polyps underwent OD and were resected and retrieved (1329 ≤5 mm and 231 6-9 mm). There were no <10-mm polyp cancers. High-confidence OD was accurate in 81.5% of ≤5-mm and 92.8% of 6-9-mm polyps. Sensitivity for OD of a ≤5-mm adenoma was 93.0% with a positive predictive value of 90.8%. OD-histology surveillance interval concordance for ≤5-mm OD was 91.3% (209/229) for U.S. Multi-Society Task Force, 98.3% (225/229) for European Society of Gastrointestinal Endoscopy, and 98.7% (226/229) for British Society of Gastroenterology guidelines, respectively. CONCLUSIONS A resect and discard strategy for high-confidence ≤5-mm polyp OD in a group of bowel cancer screening colonoscopists is feasible and safe, with performance exceeding the 90% surveillance interval concordance required for implementation in clinical practice. (Clinical trial registration number: NCT04710693.).
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Affiliation(s)
- Ahmir Ahmad
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | - Morgan Moorghen
- Pathology Department, St Mark's Hospital, Harrow, London, UK
| | - Ana Wilson
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | | | - Adam Haycock
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | - Adam Humphries
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | - Kevin Monahan
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | - Noriko Suzuki
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | | | - Margaret Vance
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
| | | | - Angad Dhillon
- Gastroenterology Department, Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust, London, UK
| | - Brian P Saunders
- Wolfson Unit for Endoscopy, St Mark's Hospital, Harrow, London, UK
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12
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Mumuni AN, Hasford F, Udeme NI, Dada MO, Awojoyogbe BO. A SWOT analysis of artificial intelligence in diagnostic imaging in the developing world: making a case for a paradigm shift. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2022-0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Diagnostic imaging (DI) refers to techniques and methods of creating images of the body’s internal parts and organs with or without the use of ionizing radiation, for purposes of diagnosing, monitoring and characterizing diseases. By default, DI equipment are technology based and in recent times, there has been widespread automation of DI operations in high-income countries while low and middle-income countries (LMICs) are yet to gain traction in automated DI. Advanced DI techniques employ artificial intelligence (AI) protocols to enable imaging equipment perceive data more accurately than humans do, and yet automatically or under expert evaluation, make clinical decisions such as diagnosis and characterization of diseases. In this narrative review, SWOT analysis is used to examine the strengths, weaknesses, opportunities and threats associated with the deployment of AI-based DI protocols in LMICs. Drawing from this analysis, a case is then made to justify the need for widespread AI applications in DI in resource-poor settings. Among other strengths discussed, AI-based DI systems could enhance accuracies in diagnosis, monitoring, characterization of diseases and offer efficient image acquisition, processing, segmentation and analysis procedures, but may have weaknesses regarding the need for big data, huge initial and maintenance costs, and inadequate technical expertise of professionals. They present opportunities for synthetic modality transfer, increased access to imaging services, and protocol optimization; and threats of input training data biases, lack of regulatory frameworks and perceived fear of job losses among DI professionals. The analysis showed that successful integration of AI in DI procedures could position LMICs towards achievement of universal health coverage by 2030/2035. LMICs will however have to learn from the experiences of advanced settings, train critical staff in relevant areas of AI and proceed to develop in-house AI systems with all relevant stakeholders onboard.
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Affiliation(s)
| | - Francis Hasford
- Department of Medical Physics , University of Ghana, Ghana Atomic Energy Commission , Accra , Ghana
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Sundaram S, Giri S, Jearth V, Vizhi N K, Yelsangikar A, Bhat N. Image-enhanced endoscopy and endoscopic resection practices in the colon among endoscopists in India. Endosc Int Open 2022; 10:E1181-E1187. [PMID: 36118641 PMCID: PMC9473856 DOI: 10.1055/a-1914-6197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/27/2021] [Indexed: 12/04/2022] Open
Abstract
Background and study aims Clinical practice patterns for image-enhanced endoscopy (IEE) and colonic endoscopic resection practices vary among endoscopists. We conducted a survey to understand the differences in IEE and colonoscopic resection practices among endoscopists from India. Methods An online cross-sectional survey comprising 40 questions regarding quality control of colonoscopy, IEE, and colonic endoscopic resection practices was circulated through the registry of the Indian Society of Gastroenterology and Association of Colon and Rectal Surgeons of India. Participation was voluntary and response to all questions was compulsory. Results There were 205 respondents to the survey (93.2 % gastroenterologists, 90.2 % male, 54.6 % aged 30 to 40 years, 36.1 % working in academic institution, 36.1 % working in corporate hospitals). Of the endoscopists, 50.7 % had no training in IEE and 10.7 % performed endoscopy on systems without any IEE modalities. Endoscopists with more experience were more likely to use IEE modalities in practice routinely ( P = 0.007). Twenty percent never used IEE to classify polyps. Sixty percent of respondents did not use dye-chromoendoscopy. Less experienced endoscopists used viscous solutions as submucosal injectate ( P = 0.036) more often. Of the respondents, 44 % never tattooed the site of endoscopic resection. Ablation of edges post-endoscopic mucosal resection was not done by 25.5 % respondents. Most respondents used electronic chromoendoscopy (36.1 %) or random four-quadrant sampling (35.6 %) for surveillance in inflammatory bowel disease. Surveillance post-endoscopic resection was done arbitrarily by 24 % respondents at 6 months to 1 year. Conclusions There are several lacunae in the practice of IEE and colonic endoscopic resection among endoscopists, with need for programs for privileging, credentialing and proctoring these endoscopic skills.
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Affiliation(s)
- Sridhar Sundaram
- Department of Digestive Diseases and Clinical Nutrition, Tata Memorial Hospital, Mumbai
| | - Suprabhat Giri
- Department of Gastroenterology, Seth GS Medical College and KEM Hospital, Mumbai
| | - Vaneet Jearth
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh
| | - Kayal Vizhi N
- Department of Gastroenterology and Hepatology, Aster CMI Hospital, Bangalore
| | - Amit Yelsangikar
- Department of Gastroenterology and Hepatology, Aster CMI Hospital, Bangalore
| | - Naresh Bhat
- Department of Gastroenterology and Hepatology, Aster CMI Hospital, Bangalore
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Bürger M, Weber M, Petersen I, Stallmach A, Schmidt C. Adenoma detection rate using narrow-band imaging is inferior to high-definition white light colonoscopy in screening and surveillance colonoscopies in daily clinical care: A randomized controlled trial. Medicine (Baltimore) 2022; 101:e29858. [PMID: 35960070 PMCID: PMC9371537 DOI: 10.1097/md.0000000000029858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Despite recent advances in endoscopic technology adenoma miss rate still is up to 20% contributing to interval cancers. Improved imaging modalities have been introduced to increase adenoma detection rate (ADR). Recently, narrow-band imaging (NBI) (Exera II series, Olympus Corporation) was not significantly better than high-definition white light colonoscopy (HD-WLC). An improved second generation of NBI (190-NBI) is characterized by better illumination of the bowel lumen and may be associated with a higher ADR. METHODS We performed a prospective randomized study on patients referred to the Jena University Hospital for screening or surveillance colonoscopy between January 2015 and April 2017. Participating endoscopists were divided into 2 subgroups depending on their individual experience. Colonoscopy was performed by use of HD-WLC or 190-NBI upon withdrawal. RESULTS Five hundred fifty-three patients participated in the study. Eighty patients were excluded (insufficient bowel cleansing [n = 34], anticoagulation precluding polypectomy [n=15], partial colonic resection [n=9], other reasons [n = 22]). Mean age was 66.9 years (standard deviation 10.3 years), and 253 patients were male (53.5%). Bowel preparation and withdrawal time were not different. ADR among all subgroups was 39.4% using HD-WLC, but only 29.1% were using 190-NBI (P = .02). Number of polyps per patient was lower using 190-NBI than with HD-WLC (0.58 vs 0.86; P = .02). Subgroup analysis revealed that 190-NBI was inferior to HD-WLC only in unexperienced endoscopists. CONCLUSION In our stud,y ADR was lower by use of 190-NBI. These differences persisted only in unexperienced investigators. 190-NBI seems to be more challenging regarding ADR, requiring more intensive training prior to implementing this technology in daily clinical care. REGISTRATION ClinicalTrials.gov (identifier: NCT03081975).
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Affiliation(s)
- Martin Bürger
- Department of Gastroenterology, Hepatology and Infectious Diseases, Clinic for Internal Medicine IV, Jena University Hospital, Jena, Germany
- Clinic for Gastroenterology and Hepatology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- *Correspondence: Martin Bürger, Department of Gastroenterology, Hepatology and Infectious Diseases, Clinic for Internal Medicine IV, Jena University Hospital, Am Klinikum 1, Jena 07747, Germany (e-mail: )
| | - Marko Weber
- Department of Gastroenterology, Hepatology and Infectious Diseases, Clinic for Internal Medicine IV, Jena University Hospital, Jena, Germany
| | - Iver Petersen
- Institute of Pathology, Jena University Hospital, Jena, Germany
- Institute of Pathology, Waldklinikum Gera, Gera, Germany
| | - Andreas Stallmach
- Department of Gastroenterology, Hepatology and Infectious Diseases, Clinic for Internal Medicine IV, Jena University Hospital, Jena, Germany
| | - Carsten Schmidt
- Department of Gastroenterology, Hepatology, Endocrinology, Diabetes and Infectious Diseases, Medical Clinic II, Fulda Hospital, Fulda, Germany
- Medical Faculty of the Friedrich Schiller University, Jena, Germany
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Biscaglia G, Cocomazzi F, Gentile M, Loconte I, Mileti A, Paolillo R, Marra A, Castellana S, Mazza T, Di Leo A, Perri F. Real-time, computer-aided, detection-assisted colonoscopy eliminates differences in adenoma detection rate between trainee and experienced endoscopists. Endosc Int Open 2022; 10:E616-E621. [PMID: 35571479 PMCID: PMC9106428 DOI: 10.1055/a-1783-9678] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 01/03/2022] [Indexed: 12/31/2022] Open
Abstract
Background and study aims Adenoma detection rate (ADR) is a well-accepted quality indicator of screening colonoscopy. In recent years, the added value of artificial intelligence (AI) has been demonstrated in terms of ADR and adenoma miss rate (AMR). To date, there are no studies evaluating the impact of AI on the performance of trainee endoscopists (TEs). This study aimed to assess whether AI might eliminate any difference in ADR or AMR between TEs and experienced endoscopists (EEs). Patients and methods We performed a prospective observational study in 45 subjects referred for screening colonoscopy. A same-day tandem examination was carried out for each patient by a TE with the AI assistance and subsequently by an EE unaware of the lesions detected by the TE. Besides ADR and AMR, we also calculated for each subgroup of endoscopists the adenoma per colonoscopy (APC), polyp detection rate (PDR), polyp per colonoscopy (PPC) and polyp miss rate (PMR). Subgroup analyses according to size, morphology, and site were also performed. Results ADR, APC, PDR, and PPC of AI-supported TEs were 38 %, 0.93, 62 %, 1.93, respectively. The corresponding parameters for EEs were 40 %, 1.07, 58 %, 2.22. No significant difference was found for each analysis between the two groups ( P > 0.05). AMR and PMR for AI-assisted TEs were 12.5 % and 13 %, respectively. Sub-analyses did not show any significant difference ( P > 0.05) between the two categories of operators. Conclusions In this single-center prospective study, the possible impact of AI on endoscopist quality training was demonstrated. In the future, this could result in better efficacy of screening colonoscopy by reducing the incidence of interval or missed cancers.
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Affiliation(s)
- Giuseppe Biscaglia
- Division of Gastroenterology and Endoscopy, “Casa Sollievo della Sofferenza” Hospital, IRCCS, San Giovanni Rotondo, Italy
| | - Francesco Cocomazzi
- Division of Gastroenterology and Endoscopy, “Casa Sollievo della Sofferenza” Hospital, IRCCS, San Giovanni Rotondo, Italy
| | - Marco Gentile
- Division of Gastroenterology and Endoscopy, “Casa Sollievo della Sofferenza” Hospital, IRCCS, San Giovanni Rotondo, Italy
| | - Ilaria Loconte
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Italy
| | - Alessia Mileti
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Italy
| | - Rosa Paolillo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Italy
| | - Antonella Marra
- Division of Gastroenterology and Endoscopy, “Casa Sollievo della Sofferenza” Hospital, IRCCS, San Giovanni Rotondo, Italy
| | - Stefano Castellana
- Laboratory of Bioinformatics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Tommaso Mazza
- Laboratory of Bioinformatics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Alfredo Di Leo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Italy
| | - Francesco Perri
- Division of Gastroenterology and Endoscopy, “Casa Sollievo della Sofferenza” Hospital, IRCCS, San Giovanni Rotondo, Italy
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Factors Associated with Polyp Detection Rate in European Colonoscopy Practice: Findings of The European Colonoscopy Quality Investigation (ECQI) Group. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19063388. [PMID: 35329077 PMCID: PMC8954761 DOI: 10.3390/ijerph19063388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 01/07/2023]
Abstract
Background: The European Colonoscopy Quality Investigation (ECQI) Group aims to raise awareness for improvement in colonoscopy standards across Europe. We analysed data collected on a sample of procedures conducted across Europe to evaluate the achievement of the polyp detection rate (PDR) target. We also investigated factors associated with PDR, in the hope of establishing areas that could lead to a quality improvement. Methods: 6445 form completions from 12 countries between 2 June 2016 and 30 April 2018 were considered for this analysis. We performed an exploratory analysis looking at PDR according to European Society of Gastrointestinal Endoscopy (ESGE) definition. Stepwise multivariable logistic regression analysis was conducted to determine the most influential associated factors after adjusting for the other pre-specified variables. Results: In our sample there were 3365 screening and diagnostic procedures performed in those over 50 years. The PDR was 40.5%, which is comparable with the ESGE minimum standard of 40%. The variables found to be associated with PDR were in descending order: use of high-definition equipment, body mass index (BMI), patient gender, age group, and the reason for the procedure. Use of HD equipment was associated with a significant increase in the reporting of flat lesions (14.3% vs. 5.7%, p < 0.0001) and protruded lesions (34.7% vs. 25.4%, p < 0.0001). Conclusions: On average, the sample of European practice captured by the ECQI survey meets the minimum PDR standard set by the ESGE. Our findings support the ESGE recommendation for routine use of HD colonoscopy.
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Huguet JM, Ferrer-Barceló L, Suárez P, Sanchez E, Prieto JD, Garcia V, Sempere J. Colorectal cancer screening and surveillance in patients with inflammatory bowel disease in 2021. World J Gastroenterol 2022; 28:502-516. [PMID: 35316962 PMCID: PMC8905018 DOI: 10.3748/wjg.v28.i5.502] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/10/2021] [Accepted: 01/20/2022] [Indexed: 02/06/2023] Open
Abstract
The detection of dysplasia in patients with inflammatory bowel disease (IBD) continues to be important given the increased risk of colorectal cancer in this population. Therefore, in 2017, we performed a review and update of the recommendations for the management and follow-up of patients with IBD based on the clinical practice guidelines of various scientific societies. The present manuscript focuses on new aspects of the detection, follow-up, and management of dysplasia according to the latest studies and recommendations. While chromoendoscopy with targeted biopsy continues to be the technique of choice for the screening and detection of dysplasia in IBD, the associated difficulties mean that it is now being compared with other techniques (virtual chromoendoscopy), which yield similar results with less technical difficulties. Furthermore, the emergence of new endoscopy techniques that are still being researched but seem promising (e.g., confocal laser endomicroscopy and full-spectrum endoscopy), together with the development of devices that improve endoscopic visualization (e.g., Endocuff Vision), lead us to believe that these approaches can revolutionize the screening and follow-up of dysplasia in patients with IBD. Nevertheless, further studies are warranted to define the optimal follow-up strategy in this patient population.
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Affiliation(s)
- Jose Maria Huguet
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Luis Ferrer-Barceló
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Patrícia Suárez
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Eva Sanchez
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Jose David Prieto
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Victor Garcia
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
| | - Javier Sempere
- Department of Digestive Disease, General University Hospital of Valencia, Valencia 46014, Spain
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Brule C, Pioche M, Albouys J, Rivory J, Geyl S, Legros R, Rostain F, Dahan M, Lepetit H, Sautereau D, Ponchon T, Auditeau E, Jacques J. The COlorectal NEoplasia Endoscopic Classification to Choose the Treatment classification for identification of large laterally spreading lesions lacking submucosal carcinomas: A prospective study of 663 lesions. United European Gastroenterol J 2022; 10:80-92. [PMID: 35089651 PMCID: PMC8830277 DOI: 10.1002/ueg2.12194] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 12/11/2021] [Indexed: 12/27/2022] Open
Abstract
Introduction Optical diagnosis is necessary when selecting the resection modality for large superficial colorectal lesions. The COlorectal NEoplasia Endoscopic Classification to Choose the Treatment (CONECCT) encompasses overt (irregular pit or vascular pattern) and covert (macroscopic features) signs of carcinoma in an all‐in‐one classification using validated criteria. The CONECCT IIC subtype corresponds to adenomas with a high risk of superficial carcinoma that should be resected en bloc with free margins. Methods This prospective multicentre study investigated the diagnostic accuracy of the CONECCT classification for predicting submucosal invasion in colorectal lesions >20 mm. Optical diagnosis before en bloc resection by endoscopic submucosal dissection (ESD) was compared with the final histological diagnosis. Diagnostic accuracy for the CONECCT IIC subtype was compared with literature‐validated features of concern considered to be risk factors for submucosal invasion (non‐granular large spreading tumour [NG LST], macronodule >1 cm, SANO IIIA area, and Paris 0‐IIC area). Results Six hundred 63 lesions removed by ESD were assessed. The en bloc, R0, and curative resection rates were respectively 96%, 85%, and 81%. The CONECCT classification had a sensitivity (Se) of 100%, specificity (Sp) of 26.2%, positive predictive value of 11.6%, and negative predictive value (NPV) of 100% for predicting at least submucosal adenocarcinoma. The sensitivity of CONECCT IIC (100%) to predict submucosal cancer was superior to all other criteria evaluated. COlorectal NEoplasia Endoscopic Classification to Choose the Treatment IIC lesions constituted 11.5% of all submucosal carcinomas. Conclusion The CONECCT classification, which combines covert and overt signs of carcinoma, identifies with very perfect sensitivity (Se 100%, NPV 100%) the 30% of low‐risk adenomas in large laterally spreading lesions treatable by piecemeal endoscopic mucosal resection or ESD according to expertise without undertreatment. However, the low specificity of CONECCT leads to a large number of potentially not indicated ESDs for suspected high‐risk lesions.
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Affiliation(s)
- Clementine Brule
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Mathieu Pioche
- Department of Endoscopy and Gastroenterology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Jeremie Albouys
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Jerome Rivory
- Department of Endoscopy and Gastroenterology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Sophie Geyl
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Romain Legros
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Florian Rostain
- Department of Endoscopy and Gastroenterology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Martin Dahan
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Hugo Lepetit
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Denis Sautereau
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Thierry Ponchon
- Department of Endoscopy and Gastroenterology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Emilie Auditeau
- Department of Epidemiology, Dupuytren University Hospital, Limoges, France
| | - Jeremie Jacques
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
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Pal P, Singh AP, Kanuri ND, Banerjee R. Electronic chromo-endoscopy: technical details and a clinical perspective. Transl Gastroenterol Hepatol 2022; 7:6. [PMID: 35243115 PMCID: PMC8826039 DOI: 10.21037/tgh-19-373] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 05/12/2020] [Indexed: 08/13/2023] Open
Abstract
Precise endoscopic assessment is necessary to detect neoplastic changes in an early stage. Electronic or virtual chromo-endoscopy (ECE) is an alternative to conventional dye-based chromo-endoscopy which markedly improves capillary pattern and hence can detect micro-vessel morphological changes of early neoplasia to target biopsies and aid in diagnosis. The clinical significance increased after the advent of endoscopic treatment modalities like ESD/EMR which requires precise delineation of extent and depth of lesion. Most of the studies have used narrow-band imaging (NBI) (Olympus Medical Systems Tokyo, Japan), although data from i-SCAN (PENTAX Endoscopy, Tokyo, Japan) and flexible spectral imaging color enhancement (FICE) (Fujinon, Fujifilm Medical Co, Saitama, Japan) are emerging. Electronic chromo-endoscopy is convenient compared to dye-based chromo-endoscopy in the sense that it is available at the push of a button in endoscope and reduces procedure time substantially with comparable efficacy. Scope of this review is to discuss available electronic chromo-endoscopy modalities and their role in the diagnosis, surveillance, and management of early GI neoplasia.
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Affiliation(s)
- Partha Pal
- Department of Medical Gastroenterology, AIG hospitals, Hyderabad, India
| | | | - Navya D Kanuri
- Department of Medical Gastroenterology, AIG hospitals, Hyderabad, India
| | - Rupa Banerjee
- Department of Medical Gastroenterology, AIG hospitals, Hyderabad, India
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Luz BSR, Canteras JCCD, Gon KDC, Batista MLDD, Ahn TJ, Maluf-Filho F. THE IMPACT OF COLORECTAL CHROMENDOSCOPY WITH ENHANCED MUCOSAL IMAGING ON ADENOMA MISS RATE IN SCREENING COLONOSCOPY. ARQUIVOS DE GASTROENTEROLOGIA 2021; 58:450-455. [PMID: 34909849 DOI: 10.1590/s0004-2803.202100000-82] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/15/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Colonoscopy is the gold standard for the diagnosis and treatment of adenomas. It is related with decreased colorectal cancer incidence and mortality. However, an important problem is missed colorectal adenoma. All efforts should be undertaken to reduce this rate. Enhancing imaging technologies including electronic chromoendoscopy and magnification has been increasingly adopted for improving the colorectal neoplasia detection rate and the detailed study of its surface, as well. I-scan images (Pentax, Tokyo, Japan) provides virtual chromoendoscopy in real-time during the examination to view the surface pattern, highlighting the microvasculature of the neoplastic lesion. The evidence on the impact of the use of I-scan on the colorectal adenoma detection rate is scarce. OBJECTIVE To evaluate whether the use of I-scan has impact on the adenoma miss rate (AMR) of screening colonoscopy exams. METHODS Observational and prospective study conducted by monitoring patients over 50 years undergoing colonoscopy. There were two groups: Group 1 - first inspection with standard high-definition white-light (HDWL) followed by a second inspection with I-scan 1; Group 2 - first inspection with I-scan 1 followed by a second inspection with standard HDWL. The primary outcome was the AMR from the first exam, calculated with the number of adenomas detected in the second exam, divided by the total number of adenomas detected in both exams. RESULTS A total of 85 patients participated in the study. 14 were excluded, with a final sample of 71 patients, in the Group 1, 34 patients, and the Group 2, 37. A total of 58 adenomas were detected, 40 in the first inspection (20 in each group) and 18 in the second inspection in group 1. The overall AMR was higher for the Group 1 than the Group 2 (47.4% vs 0% P=0.0002). CONCLUSION The use of I-scan 1 during colonoscopy exam reduces the AMR.
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Affiliation(s)
| | | | - Karen de Carvalho Gon
- Hospital Beneficência Portuguesa de São Paulo, Departamento de Endoscopia, São Paulo, SP, Brasil
| | | | - Thomy Jun Ahn
- Hospital Beneficência Portuguesa de São Paulo, Departamento de Endoscopia, São Paulo, SP, Brasil
| | - Fauze Maluf-Filho
- Hospital Beneficência Portuguesa de São Paulo, Departamento de Endoscopia, São Paulo, SP, Brasil
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Lee A, Tutticci N. Enhancing polyp detection: technological advances in colonoscopy imaging. Transl Gastroenterol Hepatol 2021; 6:61. [PMID: 34805583 DOI: 10.21037/tgh.2020.02.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/17/2020] [Indexed: 12/27/2022] Open
Abstract
The detection and removal of polyps at colonoscopy is core to the current colorectal cancer (CRC) prevention strategy. However, colonoscopy is flawed with a well described miss rate and variability in detection rates associated with incomplete protection from CRC. Consequently, there is significant interest in techniques and technologies which increase polyp detection with the aim to remedy colonoscopy's ills. Technologic advances in colonoscope imaging are numerous and include; increased definition of imaging, widening field of view, virtual technologies to supplant conventional chromocolonoscopy (CC) and now computer assisted detection. However, despite nearly two decades of technologic advances, data on gains in detection from individual technologies have been modest at best and heterogenous and conflicted as a rule. This state of detection technology science is exacerbated by use of relatively blunt metrics of improvement without consensus, the myopic search for gains over single generations of technology improvement and an unhealthy focus on adenomatous lesions. Yet there remains cause for optimism as detection gains from new technology, while small, may still improve CRC prevention. The technologies are also readily available in current generation colonoscopes and have roles beyond simply detection such as lesion characterization, further improving their worth. Coupled with the imminent expansion of computer assisted detection the detection future from colonoscope imaging advances looks bright. This review aims to cover the major imaging advances and evidence for improvement in polyp detection.
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Affiliation(s)
- Antonio Lee
- Endoscopy Unit, Queen Elizabeth II Jubilee Hospital, Brisbane, Australia
| | - Nicholas Tutticci
- Endoscopy Unit, Queen Elizabeth II Jubilee Hospital, Brisbane, Australia
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22
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Ortigão R, Weigt J, Afifi A, Libânio D. Cold versus hot polypectomy/endoscopic mucosal resection-A review of current evidence. United European Gastroenterol J 2021; 9:938-946. [PMID: 34355525 PMCID: PMC8498395 DOI: 10.1002/ueg2.12130] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/01/2021] [Indexed: 12/18/2022] Open
Abstract
Background Colonoscopy with polypectomy substantially reduces the risk of colorectal cancer (CRC) but interval cancers still account for 9% of all CRCs, some of which are due to incomplete resection. Aim The aim of this review is to compare the outcomes of cold and hot endoscopic resection and provide technical tips and tricks for optimizing cold snare polypectomy. Results Cold snare polypectomy (CSP) is the standard technique for small (≤10 mm) colorectal polyps. For large colonic polyps (>10 mm), hot resection techniques with use of electrocautery (polypectomy or endoscopic mucosal resection) were recommended until recently. However, the use of electrocoagulation brings serious adverse effects in up to 9% of the patients, such as delayed bleeding, post‐polypectomy syndrome and perforation. In recent years, efforts have been made to improve the polypectomy with cold snare in order to avoid these adverse effects of electrocoagulation without compromising the efficacy of the resection. Several authors have recently shown that the complication rates of CSP of polyps >10 mm is close to zero and recurrence rates varies between 5‐18%. Lower recurrence rates are found in serrated lesions (<8%).
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Affiliation(s)
- Raquel Ortigão
- Gastroenterology Department, Portuguese Oncology Institute of Porto, Portugal
| | - Jochen Weigt
- Gastroenterology Department, Hepatology and Infectious Diseases, Otto-v.-Guericke University, Magdeburg, Germany
| | - Ahmed Afifi
- Gastroenterology Department, Hepatology and Infectious Diseases, Otto-v.-Guericke University, Magdeburg, Germany
| | - Diogo Libânio
- Gastroenterology Department, Portuguese Oncology Institute of Porto, Portugal.,MEDCIDS-Department of Community Medicine, Health Information and Decision, Faculty of Medicine, University of Porto, Porto, Portugal
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23
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Schmidt C, Bachmann O, Baumgart DC, Goetz M, Drvarov O, Kucharzik TF, Kühbacher T, Langhorst J, Maul J, Mohl W, Mudter J, Repp M, Sturm A, Witzemann D, Atreya R. [Position paper on endoscopic reporting in IBD]. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2021; 59:1091-1109. [PMID: 34284522 DOI: 10.1055/a-1504-9782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The complete and reliable documentation of endoscopic findings make up the crucial foundation for the treatment of patients with inflammatory bowel diseases such as Crohn´s disease and ulcerative colitis. These findings are, on the one hand, a prerequisite for therapeutic decisions and, on the other hand, important as a tool for assessing the response to ongoing treatments. Endoscopic reports should, therefore, be recorded according to standardized criteria to ensure that the findings of different endoscopists can be adequately compared and that changes in the course of the disease can be traced back. In consideration of these necessities, fifteen members of the Imaging Working Group of the German Kompetenznetz Darmerkrankungen have created a position paper proposing a structure and specifications for the documentation of endoscopic exams. In addition to the formal report structure, the recommendations address a large number of attributes of acute and chronic inflammatory alterations as well as endoscopically detectable complications, which are explained in detail and illustrated using exemplary images. In addition, more frequently used endoscopic activity indices are presented and their use in everyday clinical practice is discussed.
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Affiliation(s)
- Carsten Schmidt
- Medizinische Klinik II, Klinikum Fulda gAG, Fulda, Germany.,Medizinische Fakultät der Friedrich-Schiller-Universität Jena, Germany
| | - Oliver Bachmann
- Klinik für Innere Medizin 1, Siloah St. Trudpert Klinikum, Pforzheim, Germany
| | - Daniel C Baumgart
- Division of Gastroenterology, University of Alberta, Edmonton, Canada
| | - Martin Goetz
- Innere Medizin IV, Klinikverbund Südwest GmbH, Böblingen, Germany
| | | | | | - Tanja Kühbacher
- Klinik für Innere Medizin, Diabetologie, Gastroenterologie, Pulmonologie, Tumormedizin und Palliativmedizin, medius Klinik Nürtingen, Nürtingen, Germany
| | - Jost Langhorst
- Klinik für Integrative Medizin und Naturheilkunde, Klinikum Bamberg, Bamberg, Germany.,Lehrstuhl für Integrative Medizin Schwerpunkt translationale Gastroenterologie, Universität Duisburg-Essen, Duisburg-Essen, Germany
| | - Jochen Maul
- Gastroenterology, Gastroenterologie am Bayerischen Platz, Berlin, Germany.,Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Campus Benjamin Franklin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Wolfgang Mohl
- Zentrum für Gastroenterologie Saar MVZ GmbH Saarbrücken, Saarbrücken, Germany
| | - Jonas Mudter
- Klinik für Gastroenterologie und Infektiologie, HELIOS Kliniken Schwerin, Schwerin, Germany.,Medizinische Klinik 1, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Michael Repp
- Zentrum für Innere Medizin, Klinik für Gastroenterologie/Hepatologie, Klinikum Altenburger Land GmbH, Altenburg, Germany
| | - Andreas Sturm
- Klinik für Innere Medizin mit Schwerpunkt Gastroenterologie, DRK Kliniken Berlin Westend, Berlin, Germany
| | | | - Raja Atreya
- Medizinische Klinik 1, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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24
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Alburquerque M, Smarrelli A, Montesinos JC, Carreño SO, Fernandez AZ, García AV, Frontado CL, Vidal L, Francesch MF, Lladó FGH. Outcomes of colonoscopy with non-anesthesiologist-administered propofol (NAAP): an equivalence trial. Endosc Int Open 2021; 9:E1070-E1076. [PMID: 34222632 PMCID: PMC8211490 DOI: 10.1055/a-1452-9242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 02/19/2021] [Indexed: 11/10/2022] Open
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.
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Affiliation(s)
- Marco Alburquerque
- Department of Gastroenterology, Hospital de Palamós, Girona, Spain,Department of Gastroenterology, Clínica Girona, Girona, Spain
| | | | | | | | | | - Alba Vargas García
- Department of Gastroenterology, Hospital de Palamós, Girona, Spain,Department of Gastroenterology, Clínica Girona, Girona, Spain
| | | | - Lluís Vidal
- Department of Gastroenterology, Hospital de Palamós, Girona, Spain
| | | | - Ferrán González-Huix Lladó
- Department of Gastroenterology, Clínica Girona, Girona, Spain,Department of Gastroenterology, Arnau de Vilanova University Hospital, Lleida, Spain
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25
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Seppälä TT, Latchford A, Negoi I, Sampaio Soares A, Jimenez-Rodriguez R, Sánchez-Guillén L, Evans DG, Ryan N, Crosbie EJ, Dominguez-Valentin M, Burn J, Kloor M, Knebel Doeberitz MV, Duijnhoven FJBV, Quirke P, Sampson JR, Møller P, Möslein G. European guidelines from the EHTG and ESCP for Lynch syndrome: an updated third edition of the Mallorca guidelines based on gene and gender. Br J Surg 2021; 108:484-498. [PMID: 34043773 PMCID: PMC10364896 DOI: 10.1002/bjs.11902] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/16/2020] [Accepted: 06/14/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Lynch syndrome is the most common genetic predisposition for hereditary cancer but remains underdiagnosed. Large prospective observational studies have recently increased understanding of the effectiveness of colonoscopic surveillance and the heterogeneity of cancer risk between genotypes. The need for gene- and gender-specific guidelines has been acknowledged. METHODS The European Hereditary Tumour Group (EHTG) and European Society of Coloproctology (ESCP) developed a multidisciplinary working group consisting of surgeons, clinical and molecular geneticists, pathologists, epidemiologists, gastroenterologists, and patient representation to conduct a graded evidence review. The previous Mallorca guideline format was used to revise the clinical guidance. Consensus for the guidance statements was acquired by three Delphi voting rounds. RESULTS Recommendations for clinical and molecular identification of Lynch syndrome, surgical and endoscopic management of Lynch syndrome-associated colorectal cancer, and preventive measures for cancer were produced. The emphasis was on surgical and gastroenterological aspects of the cancer spectrum. Manchester consensus guidelines for gynaecological management were endorsed. Executive and layperson summaries were provided. CONCLUSION The recommendations from the EHTG and ESCP for identification of patients with Lynch syndrome, colorectal surveillance, surgical management of colorectal cancer, lifestyle and chemoprevention in Lynch syndrome that reached a consensus (at least 80 per cent) are presented.
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Affiliation(s)
- T T Seppälä
- Department of Surgery, Helsinki University Hospital, and University of Helsinki, Helsinki, Finland.,Department of Surgical Oncology, Johns Hopkins Hospital, Baltimore Maryland, USA
| | - A Latchford
- Department of Cancer and Surgery, Imperial College London, UK.,St Mark's Hospital, London North West Healthcare NHS Trust, London, UK
| | - I Negoi
- Department of Surgery, Emergency Hospital of Bucharest, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | | | - R Jimenez-Rodriguez
- Department of Surgery, Hospital Universitario Virgen del Rocío, Seville, Spain
| | - L Sánchez-Guillén
- Colorectal Unit, Department of General Surgery, Elche University General Hospital Elche, Alicante, Spain
| | - D G Evans
- Manchester Centre for Genomic Medicine, Division of Evolution and Genomic Sciences, University of Manchester, Manchester University Hospitals NHS Foundation Trust, UK
| | - N Ryan
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK.,Centre for Academic Women's Health, University of Bristol, Bristol, UK
| | - E J Crosbie
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK
| | - M Dominguez-Valentin
- Department of Tumour Biology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - J Burn
- Faculty of Medical Sciences, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - M Kloor
- Department of Applied Tumour Biology, Institute of Pathology, University Hospital Heidelberg, Germany.,Cooperation Unit Applied Tumour Biology, German Cancer Research Centre, Heidelberg, Germany
| | - M von Knebel Doeberitz
- Department of Applied Tumour Biology, Institute of Pathology, University Hospital Heidelberg, Germany.,Cooperation Unit Applied Tumour Biology, German Cancer Research Centre, Heidelberg, Germany
| | - F J B van Duijnhoven
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, the Netherlands
| | - P Quirke
- Pathology and Data Analytics, School of Medicine, University of Leeds, Leeds, UK
| | - J R Sampson
- Institute of Medical Genetics, Division of Cancer and Genetics, Cardiff University School of Medicine, Heath Park, Cardiff, UK
| | - P Møller
- Department of Tumour Biology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,University of Witten/Herdecke, Witten, Germany
| | - G Möslein
- Centre for Hereditary Tumours, Bethesda Hospital, Duisburg, Germany.,University of Witten/Herdecke, Witten, Germany
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26
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Uchino M, Ikeuchi H, Hata K, Minagawa T, Horio Y, Kuwahara R, Nakamura S, Watanabe K, Saruta M, Fujii T, Kobayashi T, Sugimoto K, Hirai F, Esaki M, Hiraoka S, Matsuoka K, Shinzaki S, Matsuura M, Inoue N, Nakase H, Watanabe M. Does anti-tumor necrosis factor alpha prevent the recurrence of Crohn's disease? Systematic review and meta-analysis. J Gastroenterol Hepatol 2021; 36:864-872. [PMID: 33002235 DOI: 10.1111/jgh.15288] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/04/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM Anti-tumor necrosis factor (TNF) α agents are now well known to function as effective treatments for Crohn's disease (CD). Several meta-analyses have revealed the efficacy of anti-TNF therapy for preventing recurrence after surgery; however, the efficacies reported in some prospective studies differed according to the outcomes. Moreover, adverse events (AEs) were not well evaluated. We conducted this systematic review and meta-analysis to evaluate both the efficacy of anti-TNF therapy after stratification by the outcome of interest and the AEs. METHODS We performed a systematic literature review of studies investigating anti-TNF therapy, CD, and postoperative recurrence. Meta-analyses were performed for endoscopic and clinical recurrence and AEs. RESULTS A total of 570 participants, including 254 patients in the intervention group and 316 patients in the control group, in eight studies, were analyzed for recurrence. Based on the results of the meta-analysis, the efficacies of anti-TNF therapy at preventing endoscopic and clinical recurrence were as follows: relative risk (RR) 0.34, 95% confidence interval (CI) 0.22-0.53 and RR 0.60, 95% CI 0.36-1.02, respectively. The RR of AEs with anti-TNF therapy was 1.75 (95% CI 0.81-3.79). CONCLUSIONS Anti-TNF therapy after surgery for CD displays efficacy at preventing endoscopic recurrence for 1-2 years, without increasing the incidence of AEs. However, clinical recurrence was not significantly reduced. The efficacy of postoperative anti-TNF therapy may differ in terms of the outcomes, which include long-term prevention, the avoidance of further surgery, and cost-effectiveness.
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Affiliation(s)
- Motoi Uchino
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroki Ikeuchi
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Keisuke Hata
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Minagawa
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yuki Horio
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ryuichi Kuwahara
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Shiro Nakamura
- Department of Internal Medicine II, Osaka Medical College Hospital, Osaka, Japan
| | - Kenji Watanabe
- Center for Inflammatory Bowel Disease, Division of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Toshimitsu Fujii
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Ken Sugimoto
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Fumihito Hirai
- Department of Gastroenterology and Medicine, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Motohiro Esaki
- Department of Endoscopic Diagnostics and Therapeutics, Saga University Hospital, Saga, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Katsuyoshi Matsuoka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Sakura Medical Center, Sakura, Japan
| | - Shinichiro Shinzaki
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Minoru Matsuura
- Department of Gastroenterology and Hepatology, School of Medicine, Kyorin University, Tokyo, Japan
| | - Nagamu Inoue
- Center for Preventive Medicine, Keio University Hospital, Tokyo, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Mamoru Watanabe
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
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27
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Djinbachian R, Marchand E, Pohl H, Aguilera-Fish A, Bouin M, Deslandres É, Weber A, Bouchard S, Panzini B, von Renteln D. Optical diagnosis of colorectal polyps: a randomized controlled trial comparing endoscopic image-enhancing modalities. Gastrointest Endosc 2021; 93:712-719.e1. [PMID: 33275913 DOI: 10.1016/j.gie.2020.11.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/18/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Optical polyp diagnosis using image-enhanced endoscopy (IEE) allows for real-time histology prediction of colorectal polyps. The aim of this study was to evaluate a recently introduced IEE modality (Optivista [OV]; Pentax Medical, Tokyo, Japan) in a randomized controlled trial. METHODS In a prospective cohort of subjects (ages 45-80 years) undergoing elective screening, surveillance, or diagnostic colonoscopy, all colorectal polyps between 1 and 5 mm underwent IEE assessment. Study subjects were randomized before their colonoscopy procedure to undergo optical polyp diagnosis using either OV IEE or iScan (IS) IEE. A validated IEE scale (NBI International Colorectal Endoscopic classification) was used for optical polyp diagnosis. The primary outcome was the agreement of surveillance intervals determined when using OV IEE compared with IS IEE in reference with pathology-based surveillance intervals. Secondary outcomes were the percentage of surveillance intervals that could be given on the same day as the procedure, percentage of pathology tests avoided, diagnostic performance, and negative predictive value (NPV) of optical diagnosis for rectosigmoid adenomas. RESULTS Four hundred ten patients were enrolled in the trial. The polyp detection rate was 58.6%, and the adenoma detection rate was 38.8%. The proportion of correct surveillance interval assignment when using OV or IS IEE was 96.5% versus 96.0% (P = .75). A total of 65.1% of patients could be given same-day surveillance intervals when using OV IEE versus 73.1% for IS IEE (P = .07). The NPV for rectosigmoid adenomas (including sessile serrated adenomas) was 97.5% when using OV IEE and 88.2% when using IS IEE. Using high-confidence optical diagnosis instead of pathology would have resulted in a 44.3% elimination of required pathology examinations for OV IEE versus 52.8% for IS IEE (P = .34). CONCLUSIONS Optical diagnosis using OV and IS IEE both surpassed the 90% benchmark of surveillance interval assignment, and no significant difference with regard to correct surveillance interval assignment was found. OV IEE surpassed the ≥90% NPV for rectosigmoid adenomas, whereas IS IEE did not. (Clinical trial registration number: NCT03515343.).
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Affiliation(s)
- Roupen Djinbachian
- Division of Internal Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Etienne Marchand
- Faculty of Medicine, University of Montreal and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Heiko Pohl
- Division of Gastroenterology, Department of Veterans Affairs Medical Center, White River Junction, Vermont, USA; Division of Gastroenterology, Dartmouth Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Andres Aguilera-Fish
- Division of Gastroenterology, Department of Veterans Affairs Medical Center, White River Junction, Vermont, USA; Division of Gastroenterology, Dartmouth Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Mickael Bouin
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Érik Deslandres
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Audrey Weber
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Simon Bouchard
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Benoît Panzini
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
| | - Daniel von Renteln
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada
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28
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Spychalski P, Błażyńska-Spychalska A, Kobiela J. Postcolonoscopy colorectal cancer - in search of quality. Colorectal Dis 2021; 23:750-751. [PMID: 33190409 DOI: 10.1111/codi.15441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 11/06/2020] [Indexed: 02/08/2023]
Affiliation(s)
- Piotr Spychalski
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdańsk, Gdańsk, Poland
| | | | - Jarek Kobiela
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdańsk, Gdańsk, Poland
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29
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Uchino M, Ikeuchi H, Hata K, Minagawa T, Horio Y, Kuwahara R, Nakamura S, Watanabe K, Saruta M, Fujii T, Kobayashi T, Sugimoto K, Hirai F, Esaki M, Hiraoka S, Matsuoka K, Shinzaki S, Matsuura M, Inoue N, Nakase H, Watanabe M. Intestinal cancer in patients with Crohn's disease: A systematic review and meta-analysis. J Gastroenterol Hepatol 2021; 36:329-336. [PMID: 32865278 DOI: 10.1111/jgh.15229] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Although surveillance colonoscopy is recommended by several guidelines for Crohn's disease (CD), the evidence is insufficient to support the validity of this recommendation. Moreover, the efficacy of surveillance colonoscopy for anorectal cancer remains unclear. Therefore, we performed a systematic review of cancer in patients with CD before considering the proper surveillance methods. METHODS We conducted a systematic review and meta-analysis examining the incidence of intestinal cancer and a literature review to clarify the characteristic features of cancer in CD. We performed the systematic literature review of studies published up to May 2019. RESULTS Overall, 7344 patients were included in eight studies. The standardized incidence ratios (95% confidence intervals) of colorectal cancer (CRC) and small bowel cancer (SBC) were 2.08 (1.43-3.02) and 22.01 (9.10-53.25), respectively. The prevalence of CRC and SBC was 57/7344 (0.77%) and 17/7344 (0.23%), respectively, during a median follow-up of 12.55 years. Additionally, 54 studies reporting 208 anorectal cancer cases were identified. In patients with anorectal cancer, the prognosis for survival was 2.1 ± 2.3 years, and advanced cancer greater than stage T3 occurred in 46/74 patients (62.1%). Many more reports of anorectal cancer were published in Asia than in Western countries. CONCLUSION Although we were unable to state a recommendation for surveillance for SBC, we should perform cancer surveillance for CRC in patients with CD. However, the characteristics of cancer may differ according to geography or race. We must establish proper and effective surveillance methods that are independently suitable to detect these differences.
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Affiliation(s)
- Motoi Uchino
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroki Ikeuchi
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Keisuke Hata
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Minagawa
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yuki Horio
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ryuichi Kuwahara
- Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Shiro Nakamura
- Department of Internal Medicine II, Osaka Medical College Hospital, Osaka, Japan
| | - Kenji Watanabe
- Center for Inflammatory Bowel Disease, Division of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshimitsu Fujii
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment, Kitasato University, Kitasato Institute Hospital, Tokyo, Japan
| | - Ken Sugimoto
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Fumihito Hirai
- Department of Gastroenterology and Medicine, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Motohiro Esaki
- Department of Endoscopic Diagnostics and Therapeutics, Saga University Hospital, Saga, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Katsuyoshi Matsuoka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Sakura Medical Center, Sakura, Japan
| | - Shinichiro Shinzaki
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Minoru Matsuura
- Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Nagamu Inoue
- Center for Preventive Medicine, Keio University Hospital, Tokyo, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mamoru Watanabe
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
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The potential of deep learning for gastrointestinal endoscopy—a disruptive new technology. Artif Intell Med 2021. [DOI: 10.1016/b978-0-12-821259-2.00012-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Barua I, Mori Y, Bretthauer M. Colorectal polyp characterization with endocytoscopy: Ready for widespread implementation with artificial intelligence? Best Pract Res Clin Gastroenterol 2020; 52-53:101721. [PMID: 34172248 DOI: 10.1016/j.bpg.2020.101721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 01/31/2023]
Abstract
Endocytoscopy provides an in-vivo visualization of nuclei and micro-vessels at the cellular level in real-time, facilitating so-called "optical biopsy" or "virtual histology" of colorectal polyps/neoplasms. This functionality is enabled by 520-fold magnification power with endocytoscopy and recent breakthroughs in artificial intelligence (AI) allowing a great advance in endocytoscopic imaging; interpretation of images is now fully supported by AI tool which outputs predictions of polyp histopathology during colonoscopy. The advantage of the use of AI during optical biopsy can be appreciated especially by non-expert endoscopists who to increase performance. This paper provides an overview of the latest evidence on colorectal polyp characterization with endocytoscopy combined with AI and identify the barriers to its widespread implementation.
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Affiliation(s)
- Ishita Barua
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, and Department of Transplantation Medicine Oslo University Hospital, Oslo, Norway
| | - Yuichi Mori
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, and Department of Transplantation Medicine Oslo University Hospital, Oslo, Norway; Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan.
| | - Michael Bretthauer
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, and Department of Transplantation Medicine Oslo University Hospital, Oslo, Norway
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Kim SY, Lee SJ, Chung JW, Kwon KA, Kim KO, Kim YJ, Kim JH, Park DK. Efficacy of repeat forward-view examination of the right-sided colon during colonoscopy: A prospective randomized controlled trial. J Gastroenterol Hepatol 2020; 35:1746-1752. [PMID: 32267568 DOI: 10.1111/jgh.15064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND AIM Generally, colonoscopy is less effective for detecting colorectal adenomas in the right-sided colon compared with the distal colon. Repeat forward-view (RF) examination of the right-sided colon has been suggested to increase the adenoma detection rate (ADR). However, studies investigating the efficacy of RF examination are lacking. Thus, the aim of this study was to determine whether RF examination in the right-sided colon enhances right-sided ADR. METHODS We performed a prospective, randomized controlled trial, including asymptomatic subjects who underwent screening colonoscopy. Subjects were randomized to the RF group, in which the right-sided colon was examined twice in the forward view, or to the standard forward-view (SF) group, in which the right-sided colon was examined once in the forward view. The primary outcome was the right-sided ADR on RF examination of the right-sided colon. RESULTS A total of 640 subjects completed the study protocol (RF group, n = 320; SF group, n = 320). The right-sided ADR in the RF group was significantly higher than that in the SF group (17.5% vs 11.9%, respectively; P = 0.044). In the RF group, an additional 31 adenomas were found, resulting in an increased detection rate of adenomas of 38.3% compared with the first forward view. The ADR of the whole colon was similar between the groups. CONCLUSIONS In our prospective randomized controlled trial, RF examination of the right-sided colon, which can be easily performed in clinical practice, was associated with an increased rate of detection of right-sided ADR.
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Affiliation(s)
- Su Young Kim
- Divison of Gastroenterology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Sang Jin Lee
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Jun-Won Chung
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Kwang An Kwon
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Kyoung Oh Kim
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Yoon Jae Kim
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Jung Ho Kim
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
| | - Dong Kyun Park
- Divison of Gastroenterology, Department of Internal Medicine, Gachon University, Gil Medical Center, Incheon, South Korea
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Bronzwaer MES, Vleugels JLA, van Doorn SC, Dijkgraaf MGW, Fockens P, Dekker E. Are adenoma and serrated polyp detection rates correlated with endoscopists' sensitivity of optical diagnosis? Endoscopy 2020; 52:763-772. [PMID: 32349138 DOI: 10.1055/a-1151-8691] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
UNLABELLED INTRODUCTION : Endoscopists with a high adenoma detection rate (ADR) and proximal serrated polyp detection rate (PSPDR) detect these polyps more frequently, which may be attributable to better recognition of their endoscopic features. Little is known about the association between endoscopic lesion detection and differentiation skills. Therefore, we evaluated the correlation between the ADR, PSPDR, and the sensitivity of optical diagnosis for adenomas and serrated polyps. METHODS We performed an exploratory post-hoc analysis of the DISCOUNT-2 study, including complete colonoscopies after a positive fecal immunochemical test (FIT) performed by endoscopists who performed ≥ 50 colonoscopies. The correlations between the ADR, PSPDR, and the sensitivity of optical diagnosis were calculated using Pearson's rho correlation coefficient. RESULTS 24 endoscopists performed ≥ 50 colonoscopies, resulting in a total of 2889 colonoscopies. The overall ADR was 84.5 % (range 71.4 % - 95.3 %) and overall PSPDR was 13.7 % (4.3 % - 29.0 %). The sensitivity of optical diagnosis for adenomas and serrated polyps were 94.5 % (83.3 % - 100 %) and 74.0 % (37.5 % - 94.1 %), respectively. No correlation could be demonstrated between the ADR and the sensitivity of optical diagnosis for adenomas (-0.20; P = 0.35) or between the PSPDR and the sensitivity of optical diagnosis for serrated polyps (-0.12; P = 0.57). CONCLUSIONS In a homogeneous FIT-positive population, no correlation between the ADR, PSPDR, and the sensitivity of optical diagnosis for adenomas and serrated polyps could be demonstrated. These exploratory results suggest that lesion detection and differentiation require different endoscopic skills. Further prospective studies are needed; until then, monitoring of both performance indicators is important to secure optimal efficacy of FIT-based colorectal cancer screening.
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Affiliation(s)
- Maxime E S Bronzwaer
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Jasper L A Vleugels
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Sascha C van Doorn
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Marcel G W Dijkgraaf
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Paul Fockens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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Rondonotti E, Hassan C, Andrealli A, Paggi S, Amato A, Scaramella L, Repici A, Radaelli F. Clinical Validation of BASIC Classification for the Resect and Discard Strategy for Diminutive Colorectal Polyps. Clin Gastroenterol Hepatol 2020; 18:2357-2365.e4. [PMID: 31923641 DOI: 10.1016/j.cgh.2019.12.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/23/2019] [Accepted: 12/25/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Blue-light imaging (BLI) is a chromoendoscopy technique that uses direct (not filtered) emission of blue light with short wavelength (410 nm) to increase visibility of microvascular pattern and superficial mucosa. A BLI-based classification system for colorectal polyps (also called BLI Adenomas Serrated International Classification, BASIC) has been created and was validated using still images or short videos. We aimed to validate BASIC in a clinical practice setting, using thresholds recommended by the American Society for Gastrointestinal Endoscopy for the resect and discard strategy as the reference standard. METHODS We studied 333 patients (mean age, 62.7±8.1 y; 176 men) who underwent screening colonoscopy from January through July 2019. Six endoscopists trained in BASIC participated in the study. All detected diminutive polyps were characterized by real-time BLI and categorized as adenoma or non-adenoma according to BASIC. All polyps were removed and evaluated by histopathology. The BLI-directed surveillance intervals (based on high-confidence characterization of polyps 5 mm or smaller and pathology feature for others) were compared with histology-directed surveillance intervals, according to United States Multi-society Task Force and European Society of Gastrointestinal Endoscopy recommendations. We calculated negative-predictive values of optical real-time analysis of diminutive rectosigmoid adenomas. RESULTS When we applied BASIC, 748 polyps smaller than 5 mm were categorized with 89% accuracy (95% CI, 85.9%-90.6%). BLI-directed surveillance was correct for 90% of patients according to the United States Multi-society task force criteria (95% CI, 86%-93%) and for 96% of patients according to European Society of Gastrointestinal Endoscopy criteria (95% CI, 93%-97%). The negative-predictive value for 302 polyps smaller than 5 mm, located in the rectosigmoid colon and evaluated with high confidence, based on histologic features of adenomatous polyps, was 91% (95% CI, 85%-95%). CONCLUSIONS Our analysis of data from 333 patients undergoing screen colonoscopies supports the validity of BASIC discriminating diminutive colorectal polyps with histologic features of adenomas from non-adenomas. This allows for the implementation of the resect and discard strategy based on BLI in clinical practice. ClinicalTrials.gov no: NCT03746171.
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Affiliation(s)
| | - Cesare Hassan
- Digestive Endoscopy, Nuovo Regina Margherita Hospital, Rome, Italy
| | | | - Silvia Paggi
- Gastroenterology Unit, Valduce Hospital, Como, Italy
| | - Arnaldo Amato
- Gastroenterology Unit, Valduce Hospital, Como, Italy
| | - Lucia Scaramella
- Gastroenterology Unit, Valduce Hospital, Como, Italy; Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milano, Italy
| | - Alessandro Repici
- Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Clinical and Research Center and Humanitas University, Rozzano, Italy
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Sánchez-Peralta LF, Bote-Curiel L, Picón A, Sánchez-Margallo FM, Pagador JB. Deep learning to find colorectal polyps in colonoscopy: A systematic literature review. Artif Intell Med 2020; 108:101923. [PMID: 32972656 DOI: 10.1016/j.artmed.2020.101923] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 03/03/2020] [Accepted: 07/01/2020] [Indexed: 02/07/2023]
Abstract
Colorectal cancer has a great incidence rate worldwide, but its early detection significantly increases the survival rate. Colonoscopy is the gold standard procedure for diagnosis and removal of colorectal lesions with potential to evolve into cancer and computer-aided detection systems can help gastroenterologists to increase the adenoma detection rate, one of the main indicators for colonoscopy quality and predictor for colorectal cancer prevention. The recent success of deep learning approaches in computer vision has also reached this field and has boosted the number of proposed methods for polyp detection, localization and segmentation. Through a systematic search, 35 works have been retrieved. The current systematic review provides an analysis of these methods, stating advantages and disadvantages for the different categories used; comments seven publicly available datasets of colonoscopy images; analyses the metrics used for reporting and identifies future challenges and recommendations. Convolutional neural networks are the most used architecture together with an important presence of data augmentation strategies, mainly based on image transformations and the use of patches. End-to-end methods are preferred over hybrid methods, with a rising tendency. As for detection and localization tasks, the most used metric for reporting is the recall, while Intersection over Union is highly used in segmentation. One of the major concerns is the difficulty for a fair comparison and reproducibility of methods. Even despite the organization of challenges, there is still a need for a common validation framework based on a large, annotated and publicly available database, which also includes the most convenient metrics to report results. Finally, it is also important to highlight that efforts should be focused in the future on proving the clinical value of the deep learning based methods, by increasing the adenoma detection rate.
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Affiliation(s)
| | - Luis Bote-Curiel
- Jesús Usón Minimally Invasive Surgery Centre, Ctra. N-521, km 41.8, 10071 Cáceres, Spain.
| | - Artzai Picón
- Tecnalia, Parque Científico y Tecnológico de Bizkaia, C/ Astondo bidea, Edificio 700, 48160 Derio, Spain.
| | | | - J Blas Pagador
- Jesús Usón Minimally Invasive Surgery Centre, Ctra. N-521, km 41.8, 10071 Cáceres, Spain.
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Popa P, Streba CT, Caliţă M, Iovănescu VF, Florescu DN, Ungureanu BS, Stănculescu AD, Ciurea RN, Oancea CN, Georgescu D, Gheonea DI. Value of endoscopy with narrow-band imaging and probe-based confocal laser endomicroscopy in the diagnosis of preneoplastic lesions of gastrointestinal tract. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY = REVUE ROUMAINE DE MORPHOLOGIE ET EMBRYOLOGIE 2020; 61:759-767. [PMID: 33817717 PMCID: PMC8112779 DOI: 10.47162/rjme.61.3.14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Amongst all malignant tumors, cancers of the digestive tract rank first in terms of yearly deaths. Patients above 60 years of age are the most affected, as the diagnosis is frequently made in advanced stages of the disease when therapy is less effective. Our study aimed to evaluate the efficiency of narrow-band imaging (NBI) endoscopy and probe-based confocal laser endomicroscopy (pCLE) in the correct diagnosis of preneoplastic lesions in the upper and lower digestive tract. PATIENTS, MATERIALS AND METHODS We included 46 patients with digestive preneoplastic lesions, who underwent either upper or lower digestive endoscopy, followed by NBI and pCLE. We recorded 5-10 frames per each lesion, from different angles and distances during white-light endoscopy and selected frames from full recordings of NBI and pCLE. Usual preparation was used for the endoscopic procedures; pCLE required in vivo administration of 10% Sodium Fluorescein as a contrast agent. Pathology was performed in case of solid tumors. Three medical professionals with different levels of training, blinded to the results, interpreted the data. RESULTS The experienced physician correlated very well the NBI findings with pathology (0.93, p=0.05), while the resident physician and the experienced nurse obtain lower, albeit still statistically significant, values (0.73 and 0.62, respectively). For pCLE, the experienced physician obtained near-perfect correlation with pathology (0.96), followed closely by the resident physician (0.93). The nurse obtained a modest correlation (0.42). All examiners obtained approximately equal performances in discerning between malignant and benign lesions. CONCLUSIONS Digestive endoscopy in NBI mode proved its effectiveness. Even less experienced endoscopists can achieve good results, while an experienced nurse can positively influence the diagnosis. In the case of pCLE, when available, it can greatly reduce diagnostic times, while requiring higher expertise and specialty training.
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Affiliation(s)
- Petrică Popa
- Department of Scientific Research Methodology and Department of Pulmonology, University of Medicine and Pharmacy of Craiova, Romania;
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Lovász BD, Szalai M, Oczella L, Finta Á, Dubravcsik Z, Madácsy L. Improved adenoma detection with linked color imaging technology compared to white-light colonoscopy. Scand J Gastroenterol 2020; 55:877-883. [PMID: 32657195 DOI: 10.1080/00365521.2020.1786850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Linked color imaging (LCI) is a new endoscopic technology that may increase colorectal adenoma detection rate (ADR) and polyp detection rate (PDR) by virtual chromoendoscopy. Aim of the present study was to evaluate the effectiveness of LCI in ADR and PDR compared to the HD white-light colonoscopy (WLC) technique. MATERIALS AND METHODS Between October 2016 and June 2018, we enrolled consecutive outpatients prospectively. Eligible patients allocated randomly to undergo HD WLC or LCI colonoscopy technique during instrument withdrawal. Each colonoscopy was performed in a single center by the same three expert endoscopists (with expertise more than 5000 colonoscopies). RESULTS A total of 1278 patients underwent colonoscopy in the study period. ADR and PDR were significantly higher in the LCI group compared to the WLC group (34.4% vs. 26.8%; p = .007; and 53.3% vs 46.4%; p = .023, respectively). Similarly, the mean number of adenomas per patient (MAP) was significantly higher with the LCI than WLC (0.64 vs 0.44, respectively; p = .002). The mean age of patients at the time of colonoscopy was 51.95 years (SD = 13.861) in the LCI group and 51.96 years (SD = 14.028) in the WLC group. No significant differences observed in patient demographic characteristics (there was no difference in gender and age distribution, p = .986), quality of colonoscopy preparation and withdrawal times (WT) between the two groups (WLC and the LCI groups, 493.9 (SD: 143.5) and 514.0 (SD: 139.5) sec, respectively). CONCLUSIONS According to our results, LCI virtual chromoendoscopic technology was superior compared to conventional HD WLC in detecting colorectal polyps and adenomas.
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Affiliation(s)
- Barbara Dorottya Lovász
- Institute of Applied Health Sciences, Semmelweis University, Budapest, Hungary.,Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - Milán Szalai
- Endoscopy Unit, Endo-Kapszula Health Centre, Székesfehérvár, Hungary
| | - László Oczella
- Institute of Applied Health Sciences, Semmelweis University, Budapest, Hungary
| | - Ádám Finta
- Endoscopy Unit, Endo-Kapszula Health Centre, Székesfehérvár, Hungary
| | - Zsolt Dubravcsik
- Department of Gastroenterology, OMCH Endoscopy Unit, Bács-Kiskun County Hospital, Kecskemét, Hungary
| | - László Madácsy
- Endoscopy Unit, Endo-Kapszula Health Centre, Székesfehérvár, Hungary
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Artificial Intelligence-assisted System Improves Endoscopic Identification of Colorectal Neoplasms. Clin Gastroenterol Hepatol 2020; 18:1874-1881.e2. [PMID: 31525512 DOI: 10.1016/j.cgh.2019.09.009] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/30/2019] [Accepted: 09/08/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Precise optical diagnosis of colorectal polyps could improve the cost-effectiveness of colonoscopy and reduce polypectomy-related complications. However, it is difficult for community-based non-experts to obtain sufficient diagnostic performance. Artificial intelligence-based systems have been developed to analyze endoscopic images; they identify neoplasms with high accuracy and low interobserver variation. We performed a multi-center study to determine the diagnostic accuracy of EndoBRAIN, an artificial intelligence-based system that analyzes cell nuclei, crypt structure, and microvessels in endoscopic images, in identification of colon neoplasms. METHODS The EndoBRAIN system was initially trained using 69,142 endocytoscopic images, taken at 520-fold magnification, from patients with colorectal polyps who underwent endoscopy at 5 academic centers in Japan from October 2017 through March 2018. We performed a retrospective comparative analysis of the diagnostic performance of EndoBRAIN vs that of 30 endoscopists (20 trainees and 10 experts); the endoscopists assessed images from 100 cases produced via white-light microscopy, endocytoscopy with methylene blue staining, and endocytoscopy with narrow-band imaging. EndoBRAIN was used to assess endocytoscopic, but not white-light, images. The primary outcome was the accuracy of EndoBrain in distinguishing neoplasms from non-neoplasms, compared with that of endoscopists, using findings from pathology analysis as the reference standard. RESULTS In analysis of stained endocytoscopic images, EndoBRAIN identified colon lesions with 96.9% sensitivity (95% CI, 95.8%-97.8%), 100% specificity (95% CI, 99.6%-100%), 98% accuracy (95% CI, 97.3%-98.6%), a 100% positive-predictive value (95% CI, 99.8%-100%), and a 94.6% negative-predictive (95% CI, 92.7%-96.1%); these values were all significantly greater than those of the endoscopy trainees and experts. In analysis of narrow-band images, EndoBRAIN distinguished neoplastic from non-neoplastic lesions with 96.9% sensitivity (95% CI, 95.8-97.8), 94.3% specificity (95% CI, 92.3-95.9), 96.0% accuracy (95% CI, 95.1-96.8), a 96.9% positive-predictive value, (95% CI, 95.8-97.8), and a 94.3% negative-predictive value (95% CI, 92.3-95.9); these values were all significantly higher than those of the endoscopy trainees, sensitivity and negative-predictive value were significantly higher but the other values are comparable to those of the experts. CONCLUSIONS EndoBRAIN accurately differentiated neoplastic from non-neoplastic lesions in stained endocytoscopic images and endocytoscopic narrow-band images, when pathology findings were used as the standard. This technology has been authorized for clinical use by the Japanese regulatory agency and should be used in endoscopic evaluation of small polyps more widespread clinical settings. UMIN clinical trial no: UMIN000028843.
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Bisschops R, Dinis-Ribeiro M. Resect and discard: Is it ready or time to shift gear? Endosc Int Open 2020; 8:E924-E926. [PMID: 32617396 PMCID: PMC7297617 DOI: 10.1055/a-1178-9711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Raf Bisschops
- University Hospital Gasthuisberg, Gastroenterology, Belgium
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Tziatzios G, Gkolfakis P, Lazaridis LD, Facciorusso A, Antonelli G, Hassan C, Repici A, Sharma P, Rex DK, Triantafyllou K. High-definition colonoscopy for improving adenoma detection: a systematic review and meta-analysis of randomized controlled studies. Gastrointest Endosc 2020; 91:1027-1036.e9. [PMID: 31954133 DOI: 10.1016/j.gie.2019.12.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Previous meta-analysis showed marginal benefit of high-definition white-light endoscopy (HD-WLE) over standard-definition colonoscopy (SDC) for adenoma detection, but with residual uncertainty due to inclusion of nonrandomized studies. We aimed to further assess the effect of HD-WLE on adenoma detection by including only randomized controlled trials (RCTs). METHODS A literature search was performed for RCTs evaluating HD-WLE versus SDC in terms of adenoma, advanced adenoma, and serrated sessile adenoma detection rates as well as the mean number of adenomas per colonoscopy (MAC), the mean number of advanced adenomas per colonoscopy (MAAC), and the mean number of sessile serrated adenomas per colonoscopy (MSSAC). The effect size on study outcomes is presented as the risk ratio (RR; 95% confidence interval [CI]) or mean difference (MD; 95% CI). We assessed the strength of evidence using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. RESULTS Six RCTs involving 4594 individuals (HD-WLE, 2323; SDC, 2271) were included. Clinical indications were screening (1 study), positive result for fecal occult blood test, personal/family history of colorectal cancer (1 study), and mixed indications (4 studies). Withdrawal time was similar between the 2 arms (MD, -0.06; 95% CI, -0.25 to 0.12; P = .50). The adenoma detection rate was significantly higher in the HD-WLE arm compared with the SDC arm (40% vs 35%; RR, 1.13; 95% CI, 1.05-1.22; P = .001; I2 = 0%; GRADE, low). This effect was consistent for advanced and sessile serrated adenoma detection rates (RR, 1.33; 95% CI, 1.03-1.72; P = .03; I2 = 0%; GRADE, low; and RR, 1.55; 95% CI, 1.05-2.28; P = .03; I2 = 0%; GRADE, low, respectively). In contrast, the difference was not significant for MAC, MAAC, and MSSAC. CONCLUSIONS Meta-analyses of RCT data support the use of HD-WLE in clinical practice, although the additional benefit is limited.
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Affiliation(s)
- Georgios Tziatzios
- Hepatogastroenterology Unit, Second Department of Internal Medicine - Propaedeutic, Research Institute and Diabetes Center, Medical School, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
| | - Paraskevas Gkolfakis
- Hepatogastroenterology Unit, Second Department of Internal Medicine - Propaedeutic, Research Institute and Diabetes Center, Medical School, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
| | - Lazaros Dimitrios Lazaridis
- Hepatogastroenterology Unit, Second Department of Internal Medicine - Propaedeutic, Research Institute and Diabetes Center, Medical School, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
| | - Antonio Facciorusso
- Gastroenterology Unit, Department of Medical Sciences, University of Foggia AOU, Ospedali Riunity Viale Pinto, Foggia, Italy
| | - Giulio Antonelli
- Endoscopy Unit, Sant'Andrea University Hospital, "Sapienza" University of Rome, Rome, Italy
| | - Cesare Hassan
- Endoscopy Unit, Nuovo Regina Margherita Hospital, Rome, Italy
| | - Alessandro Repici
- Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Clinical and Research Center and Humanitas University, Rozzano, Italy
| | - Prateek Sharma
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, University of Kansas Medical Center, Kansas, Missouri; Department of Gastroenterology, Veteran Affairs Medical Center, Kansas, Missouri
| | - Douglas K Rex
- Division of Gastroenterology/Hepatology, Indiana University Hospital, Indianapolis, Indiana, USA
| | - Konstantinos Triantafyllou
- Hepatogastroenterology Unit, Second Department of Internal Medicine - Propaedeutic, Research Institute and Diabetes Center, Medical School, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
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Resende RH, Ribeiro IB, de Moura DTH, Galetti F, Rocha RSDP, Bernardo WM, Sakai P, de Moura EGH. Surveillance in inflammatory bowel disease: is chromoendoscopy the only way to go? A systematic review and meta-analysis of randomized clinical trials. Endosc Int Open 2020; 8:E578-E590. [PMID: 32355874 PMCID: PMC7174005 DOI: 10.1055/a-1120-8376] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 02/04/2020] [Indexed: 12/13/2022] Open
Abstract
Background and study aims Ulcerative colitis (UC) and Crohn's disease (CD) have higher risk of colorectal cancer (CRC). Guidelines recommend dysplasia surveillance with dye-spraying chromoendoscopy (DCE). The aim of this systematic review and meta-analysis was to review all randomized clinical trials (RCTs) available and compare the efficacy of different endoscopic methods of surveillance for dysplasia in patients with UC and CD. Methods Databases searched were Medline, EMBASE, Cochrane and SCIELO/LILACS. It was estimated the risk difference (RD) for dichotomous outcomes (number of patients diagnosed with one or more dysplastic lesions, total number of dysplastic lesions diagnosed and number of dysplastic lesions detected by targeted biopsies) and mean difference for continuous outcomes (procedure time). Results This study included 17 RCTs totaling 2,457 patients. There was superiority of DCE when compared to standard-definiton white light endoscopy (SD-WLE). When compared with high-definition (HD) WLE, no difference was observed in all outcomes (number of patients with dysplasia (RD 0.06; 95 % CI [-0.01, 0.13])). Comparing other techniques, no difference was observed between DCE and virtual chromoendoscopy (VCE - including narrow-band imaging [NBI], i-SCAN and flexible spectral imaging color enhancement), in all outcomes except procedure time (mean difference, 6.33 min; 95 % CI, 1.29, 11.33). DCE required a significantly longer procedure time compared with WLE (mean difference, 7.81 min; 95 % CI, 2.76, 12.86). Conclusions We found that dye-spraying chromoendoscopy detected more patients and dysplastic lesions than SD-WLE. Although no difference was observed between DCE and HD-WLE or narrow-band imaging, the main outcomes favored numerically dye-spraying chromoendoscopy, except procedure time. Regarding i-SCAN, FICE and auto-fluorescence imaging, there is still not enough evidence to support or not their recommendation.
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Affiliation(s)
| | - Igor Braga Ribeiro
- Department of Endoscopy of Clinics Hospital of São Paulo University, São Paulo, Brazil
| | - Diogo Turiani Hourneaux de Moura
- Department of Endoscopy of Clinics Hospital of São Paulo University, São Paulo, Brazil
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Facundo Galetti
- Department of Endoscopy of Clinics Hospital of São Paulo University, São Paulo, Brazil
| | | | | | - Paulo Sakai
- Department of Endoscopy of Clinics Hospital of São Paulo University, São Paulo, Brazil
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Willems P, Djinbachian R, Ditisheim S, Orkut S, Pohl H, Barkun A, Bouin M, Faulques B, von Renteln D. Uptake and barriers for implementation of the resect and discard strategy: an international survey. Endosc Int Open 2020; 8:E684-E692. [PMID: 32355888 PMCID: PMC7165012 DOI: 10.1055/a-1132-5371] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023] Open
Abstract
Background and study aims Optical real-time diagnosis (= resect-and-discard strategy) is an alternative to histopathology for diminutive colorectal polyps. However, clinical adoption of this approach seems sparse. We were interested in evaluating potential clinical uptake and barriers for implementation of this approach. Methods We conducted an international survey using the "Google forms" platform. Nine endoscopy societies distributed the survey. Survey questions measured current clinical uptake and barriers for implementing the resect-and-discard strategy , perceived cancer risk associated with diminutive polyps and potential concerns with using CT-colonography as follow-up, as well as non-resection of diminutive polyps. Results Eight hundred and eight endoscopists participated in the survey. 84.2 % (95 % CI 81.6 %-86.7 %) of endoscopists are currently not using the resect-and-discard strategy and 59.9 % (95 % CI 56.5 %-63.2 %) do not believe that the resect-and-discard strategy is feasible for implementation in its current form. European (38.5 %) and Asian (45 %) endoscopists had the highest rates of resect-and-discard practice, while Canadian (13.8 %) and American (5.1 %) endoscopists had some of the lowest implementation rates. 80.3 % (95 % CI 77.5 %-83.0 %) of endoscopists believe that using the resect-and-discard strategy for diminutive polyps will not increase cancer risk. 48.4 % (95 % CI 45.0 %-51.9 %) of endoscopists believe that leaving diminutive polyps in place is associated with increased cancer risk. This proportion was slightly higher (54.7 %; 95 % CI 53.6 %-60.4 %) when asked if current CT-colonography screening practice might increase cancer risks. Conclusion Clinical uptake of resect-and-discard is very low. Most endoscopists believe that resect-and-discard is not feasible for clinical implementation in its current form. The most important barriers for implementation are fear of making an incorrect diagnosis, assigning incorrect surveillance intervals and medico-legal consequences.
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Affiliation(s)
- Philippe Willems
- Division of Internal Medicine, Montreal University Hospital Center (CHUM), Montreal, Canada
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
| | - Roupen Djinbachian
- Division of Internal Medicine, Montreal University Hospital Center (CHUM), Montreal, Canada
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
| | - Saskia Ditisheim
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Sinan Orkut
- Faculty of Medicine, University of Strasbourg, Strasbourg, France
| | - Heiko Pohl
- Department of Veterans Affairs Medical Center, White River Junction, Vermont, and Dartmouth Geisel School of Medicine, Hanover, New Hampshire, United States
| | - Alan Barkun
- Division of Gastroenterology, McGill University Health Center, McGill University, Montreal, Canada
| | - Mickael Bouin
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Bernard Faulques
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Daniel von Renteln
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
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Riu Pons F, Andreu M, Naranjo D, Álvarez-González MA, Seoane A, Dedeu JM, Barranco L, Bessa X. Narrow-band imaging and high-definition white-light endoscopy in patients with serrated lesions not fulfilling criteria for serrated polyposis syndrome: a randomized controlled trial with tandem colonoscopy. BMC Gastroenterol 2020; 20:111. [PMID: 32299380 PMCID: PMC7164214 DOI: 10.1186/s12876-020-01257-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 03/31/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND It is unknown whether narrow-band imaging (NBI) could be more effective than high-definition white-light endoscopy (HD-WLE) in detecting serrated lesions in patients with prior serrated lesions > 5 mm not completely fulfilling serrated polyposis syndrome (SPS) criteria. METHODS We conducted a randomized, cross-over trial in consecutive patients with prior detection of at least one serrated polyp ≥10 mm or ≥ 3 serrated polyps larger than 5 mm, both proximal to the sigmoid colon. Five experienced endoscopists performed same-day tandem colonoscopies, with the order being randomized 1:1 to NBI-HD-WLE or HD-WLE-NBI. All tandem colonoscopies were performed by the same endoscopist. RESULTS We included 41 patients. Baseline characteristics were similar in the two cohorts: NBI-HD-WLE (n = 21) and HD-WLE-NBI (n = 20). No differences were observed in the serrated lesion detection rate of NBI versus HD-WLE: 47.4% versus 51.9% (OR 0.84, 95% CI: 0.37-1.91) for the first and second withdrawal, respectively. Equally, no differences were found in the polyp miss rate of NBI versus HD-WLE: 21.3% versus 26.1% (OR 0.77, 95% CI: 0.43-1.38). Follow-up colonoscopy in nine patients (22%) allowed them to be reclassified as having SPS. CONCLUSIONS In patients with previous serrated lesions, the serrated lesion detection rate was similar with NBI and HD-WLE. A shorter surveillance colonoscopy interval increases the detection of missed serrated polyps and could change the diagnosis of SPS in approximately one in every five patients. TRIAL REGISTRATION ClinicalTrials.gov NCT02406547, registered on April 2, 2015.
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Affiliation(s)
- Fausto Riu Pons
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain.
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain.
| | - Montserrat Andreu
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
- Pompeu Fabra University, Barcelona, Spain
| | - Dolores Naranjo
- Pathology Department, Hospital del Mar-IMIM, Barcelona, Spain
| | - Marco Antonio Álvarez-González
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Agustín Seoane
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Josep Maria Dedeu
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Luis Barranco
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Xavier Bessa
- Gastroenterology Department, Hospital del Mar, Passeig Marítim 25-29, 08003, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
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Shibagaki K, Ishimura N, Yuki T, Taniguchi H, Aimi M, Kobayashi K, Kotani S, Yazaki T, Yamashita N, Tamagawa Y, Mishiro T, Ishihara S, Yasuda A, Kinshita Y. Magnification endoscopy in combination with acetic acid enhancement and narrow-band imaging for the accurate diagnosis of colonic neoplasms. Endosc Int Open 2020; 8:E488-E497. [PMID: 32258370 PMCID: PMC7089791 DOI: 10.1055/a-1068-2056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/25/2019] [Indexed: 12/15/2022] Open
Abstract
Background and study aims Magnification endoscopy with narrow-band imaging (NBIME) and NBIME with acetic acid enhancement (A-NBIME) enable visualization of the vascular and microstructural patterns of colorectal polyp. We compared the diagnostic accuracy and reproducibility of white light endoscopy (WLE), NBIME, and A-NBIME for predictive histologic diagnosis. Patients and methods Consecutive colorectal polyps (N = 628; 38 hyperplasias, 488 adenomas, 72 M-SM1 cancers, and 30 SM2 cancers) were photographed with WLE, NBIME, and A-NBIME. Endoscopic images were independently reviewed by three experts, according to the traditional criteria for WLE, the Japan NBI Expert Team classification for NBIME, and pit pattern classification for A-NBIME to compare diagnostic accuracy and interobserver diagnostic agreement among modalities. Results The specificity (95 % confidence interval) of hyperplasia and SM2 cancer with WLE were 98.2 % (96.8 %-99.1%) and 99.4 % (98.5 %-99.9 %), respectively, showing high accuracy for endoscopic resection without magnifying observation. Diagnostic accuracy of WLE, NBIME, and A-NBIME was 80.8 % (77.4 %-83.8 %), 79.3 % (75.9 %-82.4 %), and 86.1 % (83.2 %-88.7 %), respectively, showing the highest accuracy for A-NBIME among modalities ( P < .05). NBIME showed a lower PPV for M-SM1 cancer ( P < .05), as with WLE ( P = .08) compared to A-NBIME. Fleiss's kappa values for WLE, NBIME, and A-NBIME diagnosis were 0.43 (0.39 - 0.46), 0.52 (0.49 - 0.56) and 0.65 (0.62 - 0.69), respectively, showing insufficient reproducibility of WLE and superiority of A-NBIME among modalities. Conclusion WLE showed high accuracy for endoscopic resection of colorectal polyps in expert diagnosis. NBIME demonstrated a higher diagnostic reproducibility than WLE. A-NBIME showed possible superiority among modalities in both diagnostic accuracy and reproducibility.
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Affiliation(s)
- Kotaro Shibagaki
- Department of Endoscopy, Faculty of Medicine, Shimane University, Izumo, Japan,Corresponding author Kotaro Shibagaki, MD, PhD Department of Gastroenterology, Faculty of MedicineShimane University89-1 EnyaIzumoJapan 693-8501+81-85320-2187
| | - Norihisa Ishimura
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Takafumi Yuki
- Division of Gastroenterology, Matsue Red Cross Hospital, Matsue, Japan
| | - Hideaki Taniguchi
- Department of Gastroenterology, Tottori Municipal Hospital, Tottori, Japan
| | - Masahito Aimi
- Department of Gastroenterology, Tottori Municipal Hospital, Tottori, Japan
| | - Keita Kobayashi
- Department of Pathology, Tottori Municipal Hospital, Tottori, Japan
| | - Satoshi Kotani
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Tomotaka Yazaki
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Noritsugu Yamashita
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Yuji Tamagawa
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Tsuyoshi Mishiro
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Shunji Ishihara
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Akira Yasuda
- Department of Medical informatics, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Yoshikazu Kinshita
- Department of Gastroenterology, Faculty of Medicine, Shimane University, Izumo, Japan
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Cap-Assisted Chromoendoscopy Using a Mounted Cap Versus Standard Colonoscopy for Adenoma Detection. Am J Gastroenterol 2020; 115:465-472. [PMID: 31972618 DOI: 10.14309/ajg.0000000000000510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Some neoplastic lesions remain undetected on colonoscopy. To date, no studies have investigated whether combining cap-assisted colonoscopy with chromoendoscopy increases the adenoma detection rate (ADR). This study aimed to compare cap-assisted chromoendoscopy (CAP/CHROMO) with standard colonoscopy (SC) with respect to their efficacy in detecting adenomas. METHODS This prospective, multicenter, randomized controlled trial included asymptomatic subjects aged 45-75 years who underwent colonoscopy for the first time at 14 university hospitals. Subjects were randomized to either the CAP/CHROMO group (with 0.09% indigo carmine spraying using a cap-mounted catheter at the tip of the colonoscope) or the SC group. All polyps were resected, but only histologically confirmed neoplastic lesions were considered for analysis. The primary outcome was ADR, defined as the proportion of subjects with at least 1 adenoma. RESULTS A total of 1,905 subjects were randomized to the CAP/CHROMO (n = 948) or SC (n = 957) group at 14 centers. Subjects' demographic characteristics were similar between both groups. The CAP/CHROMO group had significantly higher ADR than the SC group (54.4% vs 44.9%, P < 0.001). Significantly, more subjects with at least 1 proximal colon adenoma were identified by CAP/CHROMO (38.6%) than by SC (31.2%) (P = 0.001). The proximal serrated polyp detection rate by CAP/CHROMO was significantly higher in the female subgroup vs SC. However, advanced ADR was not different between the CAP/CHROMO and SC groups (9.3% vs 7.6%, P = 0.180). DISCUSSION CAP/CHROMO markedly improved the ADR and enhanced the detection of proximal adenoma. CAP/CHROMO is feasible for routine application and will allow for a more effective surveillance program.
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van de Wetering AJ, Meulen LW, Bogie RM, van der Zander QE, Reumkens A, Winkens B, Cheng HR, Straathof JWA, Dekker E, Keulen E, Bakker CM, Hoge C, de Ridder R, Masclee AA, Sanduleanu-Dascalescu S. Optical diagnosis of diminutive polyps in the Dutch Bowel Cancer Screening Program: Are we ready to start? Endosc Int Open 2020; 8:E257-E265. [PMID: 32118099 PMCID: PMC7043968 DOI: 10.1055/a-1072-4853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
Background and study aims Implementation of optical diagnosis of diminutive polyps may potentially increase the efficacy and cost-effectiveness of colonoscopies. To adopt such strategy in clinical practice, the Preservation and Incorporation of Valuable endoscopic Innovations (PIVI) thresholds provide the basis to be met: ≥ 90 % negative predictive value (NPV) for diagnosis of adenomatous histology and ≥ 90 % agreement on surveillance intervals. We evaluated this within the Dutch Bowel Cancer Screening Program (BCSP). Patients and methods Endoscopic and histological data were collected from participants of the national bowel cancer screening program with an unfavorable fecal immunochemical test referred for colonoscopy between February 2014 and August 2015 at four endoscopy centers. The "resect and discard" scenario was studied, resecting diminutive polyps without histological evaluation. Agreement between optical diagnosis and histological diagnosis was measured for surveillance intervals according to Dutch, European and American post-polypectomy surveillance guideline. Results Fifteen certified endoscopists participated in this study and included 3028 diminutive polyps. In 2,330 patients both optical and histological diagnosis were available. Optical diagnosis of diminutive polyps showed NPV of 84 % (95 % CI 80-87) for adenomatous histology in the rectosigmoid. Applying the 'resect and discard' strategy resulted in 90.6 %, 91.2 %, 90.9 % agreement on surveillance intervals for the Dutch, European and American guideline respectively. Conclusion Our data representing current clinical practice in the Dutch BCSP practice on optical diagnosis of diminutive polyps showed that accuracy of predicting histology remains challenging, and risk of incorrect optical diagnosis is still significant. Therefore, it is too early to safely implement these strategies.
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Affiliation(s)
- Alouisa J.P. van de Wetering
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands,Corresponding author Alouisa J.P. van de Wetering, MD Maastricht University Medical Center+Division of Gastroenterology and HepatologyPO Box 5800, 6202 AZ MaastrichtThe Netherlands+31-43-387 5006
| | - Lonne W.T. Meulen
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Roel M.M. Bogie
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Quirine E.W. van der Zander
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ankie Reumkens
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands,Department of Internal Medicine and Gastroenterology, Zuyderland Medical Center, Heerlen, The Netherlands
| | - Bjorn Winkens
- Department of Methodology and Statistics, Maastricht University,CAPHRI, Care and Public Health Research Institute, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Hao Ran Cheng
- Department of Gastroenterology, Máxima Medical Center, Veldhoven, The Netherlands
| | - Jan-Willem A. Straathof
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,Department of Gastroenterology, Máxima Medical Center, Veldhoven, The Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Eric Keulen
- Department of Internal Medicine and Gastroenterology, Zuyderland Medical Center, Heerlen, The Netherlands
| | - C. M. Bakker
- Department of Internal Medicine and Gastroenterology, Zuyderland Medical Center, Heerlen, The Netherlands
| | - Chantal Hoge
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rogier de Ridder
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ad A.M. Masclee
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,NUTRIM, School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Silvia Sanduleanu-Dascalescu
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands,GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
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Rivero-Sánchez L, Arnau-Collell C, Herrero J, Remedios D, Cubiella J, García-Cougil M, Alvarez V, Albéniz E, Calvo P, Gordillo J, Puig I, López-Vicente J, Huerta A, López-Cerón M, Salces I, Peñas B, Parejo S, Rodriguez de Santiago E, Herraiz M, Carretero C, Gimeno-Garcia AZ, Saperas E, Alvarez-Urturi C, Moreira R, Rodriguez de Miguel C, Ocaña T, Moreira L, Carballal S, Sánchez A, Jung G, Castells A, Llach J, Balaguer F, Pellisé M. White-Light Endoscopy Is Adequate for Lynch Syndrome Surveillance in a Randomized and Noninferiority Study. Gastroenterology 2020; 158:895-904.e1. [PMID: 31520613 DOI: 10.1053/j.gastro.2019.09.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND & AIMS Dye-based pancolonic chromoendoscopy is recommended for colorectal cancer surveillance in patients with Lynch syndrome. However, there is scarce evidence to support its superiority to high-definition white-light endoscopy. We performed a prospective study assess whether in the hands of high detecting colonoscopists, high-definition, white-light endoscopy is noninferior to pancolonic chromoendoscopy for detection of adenomas in patients with Lynch syndrome. METHODS We conducted a parallel controlled study, from July 2016 through January 2018 at 14 centers in Spain of adults with pathogenic germline variants in mismatch repair genes (60% women; mean age, 47 ± 14 years) under surveillance. Patients were randomly assigned to groups that underwent high-definition white-light endoscopy (n = 128) or pancolonic chromoendoscopy (n = 128) evaluations by 24 colonoscopists who specialized in detection of colorectal lesions in high-risk patients for colorectal cancer. Adenoma detection rates (defined as the proportion of patients with at least 1 adenoma) were compared between groups, with a noninferiority margin (relative difference) of 15%. RESULTS We found an important overlap of confidence intervals (CIs) and no significant difference in adenoma detection rates by pancolonic chromoendoscopy (34.4%; 95% CI 26.4%-43.3%) vs white-light endoscopy (28.1%; 95% CI 21.1%-36.4%; P = .28). However, pancolonic chromoendoscopy detected serrated lesions in a significantly higher proportion of patients (37.5%; 95% CI 29.5-46.1) than white-light endoscopy (23.4%; 95% CI 16.9-31.4; P = .01). However, there were no significant differences between groups in proportions of patients found to have serrated lesions of 5 mm or larger (9.4% vs 7.0%; P = .49), of proximal location (11.7% vs 10.2%; P = .68), or sessile serrated lesions (3.9% vs 5.5%; P = .55), respectively. Total procedure and withdrawal times with pancolonic chromoendoscopy (30.7 ± 12.8 minutes and 18.3 ± 7.6 minutes, respectively) were significantly longer than with white-light endoscopy (22.4 ± 8.7 minutes and 13.5 ± 5.6 minutes; P < .001). CONCLUSIONS In a randomized parallel trial, we found that for Lynch syndrome surveillance, high-definition white-light endoscopy is not inferior to pancolonic chromoendoscopy if performed by experienced and dedicated endoscopists. ClinicalTrials.gov no: NCT02951390.
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Affiliation(s)
- Liseth Rivero-Sánchez
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Coral Arnau-Collell
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Jesús Herrero
- Department of Gastroenterology, Complexo Hospitalario Universitario de Ourense, Instituto de Investigación Biomédica Galicia Sur, CIBERehd, Ourense, Spain
| | - David Remedios
- Department of Gastroenterology, Complexo Hospitalario Universitario de Ourense, Instituto de Investigación Biomédica Galicia Sur, CIBERehd, Ourense, Spain
| | - Joaquín Cubiella
- Department of Gastroenterology, Complexo Hospitalario Universitario de Ourense, Instituto de Investigación Biomédica Galicia Sur, CIBERehd, Ourense, Spain
| | - Marta García-Cougil
- Department of Gastroenterology, Complexo Hospitalario Universitario de Ourense, Instituto de Investigación Biomédica Galicia Sur, CIBERehd, Ourense, Spain
| | - Victoria Alvarez
- Complejo Hospitalario de Pontevedra, Department of Gastroenterology, Pontevedra, Spain
| | - Eduardo Albéniz
- Complejo Hospitalario de Navarra, Digestive System Service, Endoscopy Unit, Navarrabiomed, Universidad Pública de Navarra, IdiSNa, Pamplona, Spain
| | - Patricia Calvo
- Complejo Hospitalario de Navarra, Nurse High-Risk Clinic, Pamplona, Spain
| | - Jordi Gordillo
- Hospital de la Santa Creu i Sant Pau, Gastroenterology Unit, Barcelona, Spain
| | - Ignasi Puig
- Althaia, Xarxa Assistencial Universitària de Manresa, Digestive System Service, Manresa, Spain
| | - Jorge López-Vicente
- Hospital Universitario de Móstoles, Digestive System Service, Móstoles, Spain
| | - Alain Huerta
- Hospital Galdakao-Usansolo, Department of Gastroenterology, Galdakao, Spain
| | - María López-Cerón
- Hospital Universitario 12 de Octubre, Digestive System Service, Madrid, Spain
| | - Inmaculada Salces
- Hospital Universitario 12 de Octubre, Digestive System Service, Madrid, Spain
| | - Beatriz Peñas
- Hospital Universitario Ramón y Cajal, Department of Gastroenterology, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Sofía Parejo
- Hospital Universitario Ramón y Cajal, Department of Gastroenterology, Madrid, Spain
| | | | - Maite Herraiz
- University of Navarra Clinic-IdiSNA, Gastroenterology Department, Pamplona, Spain
| | - Cristina Carretero
- University of Navarra Clinic-IdiSNA, Gastroenterology Department, Pamplona, Spain
| | | | - Esteban Saperas
- Hospital General de Catalunya, Digestive System Service, Sant Cugat del Vallès, Spain
| | | | - Rebeca Moreira
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain
| | | | - Teresa Ocaña
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain
| | - Leticia Moreira
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Sabela Carballal
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Ariadna Sánchez
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Gerhard Jung
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Antoni Castells
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Josep Llach
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain
| | - Francesc Balaguer
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - María Pellisé
- Hospital Clinic of Barcelona, Department of Gastroenterology, Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain.
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Monahan KJ, Bradshaw N, Dolwani S, Desouza B, Dunlop MG, East JE, Ilyas M, Kaur A, Lalloo F, Latchford A, Rutter MD, Tomlinson I, Thomas HJW, Hill J. Guidelines for the management of hereditary colorectal cancer from the British Society of Gastroenterology (BSG)/Association of Coloproctology of Great Britain and Ireland (ACPGBI)/United Kingdom Cancer Genetics Group (UKCGG). Gut 2020; 69:411-444. [PMID: 31780574 PMCID: PMC7034349 DOI: 10.1136/gutjnl-2019-319915] [Citation(s) in RCA: 240] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/25/2019] [Accepted: 11/05/2019] [Indexed: 12/12/2022]
Abstract
Heritable factors account for approximately 35% of colorectal cancer (CRC) risk, and almost 30% of the population in the UK have a family history of CRC. The quantification of an individual's lifetime risk of gastrointestinal cancer may incorporate clinical and molecular data, and depends on accurate phenotypic assessment and genetic diagnosis. In turn this may facilitate targeted risk-reducing interventions, including endoscopic surveillance, preventative surgery and chemoprophylaxis, which provide opportunities for cancer prevention. This guideline is an update from the 2010 British Society of Gastroenterology/Association of Coloproctology of Great Britain and Ireland (BSG/ACPGBI) guidelines for colorectal screening and surveillance in moderate and high-risk groups; however, this guideline is concerned specifically with people who have increased lifetime risk of CRC due to hereditary factors, including those with Lynch syndrome, polyposis or a family history of CRC. On this occasion we invited the UK Cancer Genetics Group (UKCGG), a subgroup within the British Society of Genetic Medicine (BSGM), as a partner to BSG and ACPGBI in the multidisciplinary guideline development process. We also invited external review through the Delphi process by members of the public as well as the steering committees of the European Hereditary Tumour Group (EHTG) and the European Society of Gastrointestinal Endoscopy (ESGE). A systematic review of 10 189 publications was undertaken to develop 67 evidence and expert opinion-based recommendations for the management of hereditary CRC risk. Ten research recommendations are also prioritised to inform clinical management of people at hereditary CRC risk.
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Affiliation(s)
- Kevin J Monahan
- Family Cancer Clinic, St Mark's Hospital, London, UK
- Faculty of Medicine, Imperial College, London, UK
| | - Nicola Bradshaw
- Clinical Genetics, West of Scotland Genetics Services, Glasgow, Glasgow, UK
| | - Sunil Dolwani
- Gastroenterology, Cardiff and Vale NHS Trust, Cardiff, UK
| | - Bianca Desouza
- Clinical Genetics, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - James E East
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
- Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Mohammad Ilyas
- Faculty of Medicine & Health Sciences, Nottingham University, Nottingham, UK
| | - Asha Kaur
- Head of Policy and Campaigns, Bowel Cancer UK, London, UK
| | - Fiona Lalloo
- Genetic Medicine, Central Manchester University Hospitals Foundation Trust, Manchester, UK
| | | | - Matthew D Rutter
- Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Ian Tomlinson
- Nuffield Department of Clinical Medicine, Wellcome Trust Centre for Human Genetics, Birmingham, UK
- Cancer Research Centre, University of Edinburgh, Edinburgh, UK
| | - Huw J W Thomas
- Family Cancer Clinic, St Mark's Hospital, London, UK
- Faculty of Medicine, Imperial College, London, UK
| | - James Hill
- Genetic Medicine, Central Manchester University Hospitals Foundation Trust, Manchester, UK
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49
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Rutter MD, East J, Rees CJ, Cripps N, Docherty J, Dolwani S, Kaye PV, Monahan KJ, Novelli MR, Plumb A, Saunders BP, Thomas-Gibson S, Tolan DJM, Whyte S, Bonnington S, Scope A, Wong R, Hibbert B, Marsh J, Moores B, Cross A, Sharp L. British Society of Gastroenterology/Association of Coloproctology of Great Britain and Ireland/Public Health England post-polypectomy and post-colorectal cancer resection surveillance guidelines. Gut 2020; 69:201-223. [PMID: 31776230 PMCID: PMC6984062 DOI: 10.1136/gutjnl-2019-319858] [Citation(s) in RCA: 194] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022]
Abstract
These consensus guidelines were jointly commissioned by the British Society of Gastroenterology (BSG), the Association of Coloproctology of Great Britain and Ireland (ACPGBI) and Public Health England (PHE). They provide an evidence-based framework for the use of surveillance colonoscopy and non-colonoscopic colorectal imaging in people aged 18 years and over. They are the first guidelines that take into account the introduction of national bowel cancer screening. For the first time, they also incorporate surveillance of patients following resection of either adenomatous or serrated polyps and also post-colorectal cancer resection. They are primarily aimed at healthcare professionals, and aim to address:Which patients should commence surveillance post-polypectomy and post-cancer resection?What is the appropriate surveillance interval?When can surveillance be stopped? two or more premalignant polyps including at least one advanced colorectal polyp (defined as a serrated polyp of at least 10 mm in size or containing any grade of dysplasia, or an adenoma of at least 10 mm in size or containing high-grade dysplasia); or five or more premalignant polyps The Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument provided a methodological framework for the guidelines. The BSG's guideline development process was used, which is National Institute for Health and Care Excellence (NICE) compliant.two or more premalignant polyps including at least one advanced colorectal polyp (defined as a serrated polyp of at least 10 mm in size or containing any grade of dysplasia, or an adenoma of at least 10 mm in size or containing high-grade dysplasia); or five or more premalignant polyps The key recommendations are that the high-risk criteria for future colorectal cancer (CRC) following polypectomy comprise either:two or more premalignant polyps including at least one advanced colorectal polyp (defined as a serrated polyp of at least 10 mm in size or containing any grade of dysplasia, or an adenoma of at least 10 mm in size or containing high-grade dysplasia); or five or more premalignant polyps This cohort should undergo a one-off surveillance colonoscopy at 3 years. Post-CRC resection patients should undergo a 1 year clearance colonoscopy, then a surveillance colonoscopy after 3 more years.
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Affiliation(s)
- Matthew D Rutter
- Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - James East
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Colin J Rees
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
- Gastroenterology, South Tyneside NHS Foundation Trust, South Shields, UK
| | - Neil Cripps
- Western Sussex Hospitals NHS Foundation Trust, Chichester, UK
| | | | - Sunil Dolwani
- Gastroenterology, Cardiff and Vale NHS Trust, Cardiff, UK
| | - Philip V Kaye
- Histopathology, Nottingham University Hospitals, Nottingham, UK
| | - Kevin J Monahan
- Family History of Bowel Cancer Clinic, West Middlesex University Hospital, London, UK
- Imperial College, London, UK
| | | | | | | | | | - Damian J M Tolan
- Clinical Radiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Sophie Whyte
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | | | - Alison Scope
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Ruth Wong
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | | | | | | | - Amanda Cross
- Department of Epidemiology and Biostatistics, School of Public Health, Faculty of Medicine of Imperial College, Imperial College London, London, UK
| | - Linda Sharp
- Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
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50
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Zhang QW, Zhang JJ, Yang AM, Sheng JQ, Liu YL, Li ZS, Chen HY, Feng N, Jiang QW, Jin P, Zhang LM, Fu HY, Gao YJ, Ge ZZ, Li XB. Feasibility of using narrow band imaging international colorectal endoscopic classification for diagnosing colorectal neoplasia in China: A multicenter pilot observational study. J Dig Dis 2020; 21:88-97. [PMID: 31895484 DOI: 10.1111/1751-2980.12841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/31/2019] [Accepted: 12/30/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We aimed to investigate whether Chinese endoscopists without narrow-band imaging (NBI) experiences could achieve high accuracy in the real-time diagnosis of colorectal polyps using NBI International Colorectal Endoscopic (NICE) classification after web-based training. METHODS Altogether 15 endoscopists from five centers with no NBI experiences followed a short, web-based training program on the NICE classification and took web-based test. Their performances were compared with 15 matched experienced endoscopists with no NBI experience who received no NBI training. These 15 trained endoscopists then made real-time diagnoses of colorectal neoplasia. A logistic regression was used to assess potential predictors of diagnostic performance. RESULTS Compared with those who received no training, trained endoscopists achieved comparable overall accuracy (85.3% vs 83.1%, P = 0.408) and accuracy at a high-confidence level (87.0% vs 86.0%, P = 0.670), but had a higher confidence rate (86.1% vs 83.7%, P = 0.004) for the diagnosis of neoplasia. Real-time diagnostic accuracy, sensitivity and specificity were 94.3% (95% confidence interval [CI] 91.5%-96.2%), 96.2% (95% CI 93.4%-97.9%) and 85.3% (95% CI 74.8%-92.1%) at high-confidence level. The high-confidence level was the strongest predictor of real-time diagnostic accuracy (odds ratio 12.66, P < 0.001). CONCLUSIONS Web-based training can improve the confidence level of endoscopists in accurately diagnosing colorectal polyps using the NICE classification. Chinese endoscopists can achieve high accuracy in diagnosing colorectal neoplasia at a high confidence level (ClinicalTrials ID: NCT02033980).
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Affiliation(s)
- Qing Wei Zhang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Jing Zhang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ai Ming Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Jian Qiu Sheng
- Department of Gastroenterology and Gastrointestinal Endoscopy Center, PLA General Hospital, Beijing, China
| | - Yu Lan Liu
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - Zhao Shen Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Hai Ying Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Feng
- Department of Emergency, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Wei Jiang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Peng Jin
- Department of Gastroenterology and Gastrointestinal Endoscopy Center, PLA General Hospital, Beijing, China
| | - Li Ming Zhang
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - Hong Yu Fu
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Yun Jie Gao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi Zheng Ge
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Bo Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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