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Hardy NP, Moynihan A, Dalli J, Epperlein JP, McEntee PD, Boland PA, Neary PM, Cahill RA. Surgeon assessment of significant rectal polyps using white light endoscopy alone and in comparison to fluorescence-augmented AI lesion classification. Langenbecks Arch Surg 2024; 409:170. [PMID: 38822883 PMCID: PMC11144127 DOI: 10.1007/s00423-024-03364-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/25/2024] [Indexed: 06/03/2024]
Abstract
PURPOSE Perioperative decision making for large (> 2 cm) rectal polyps with ambiguous features is complex. The most common intraprocedural assessment is clinician judgement alone while radiological and endoscopic biopsy can provide periprocedural detail. Fluorescence-augmented machine learning (FA-ML) methods may optimise local treatment strategy. METHODS Surgeons of varying grades, all performing colonoscopies independently, were asked to visually judge endoscopic videos of large benign and early-stage malignant (potentially suitable for local excision) rectal lesions on an interactive video platform (Mindstamp) with results compared with and between final pathology, radiology and a novel FA-ML classifier. Statistical analyses of data used Fleiss Multi-rater Kappa scoring, Spearman Coefficient and Frequency tables. RESULTS Thirty-two surgeons judged 14 ambiguous polyp videos (7 benign, 7 malignant). In all cancers, initial endoscopic biopsy had yielded false-negative results. Five of each lesion type had had a pre-excision MRI with a 60% false-positive malignancy prediction in benign lesions and a 60% over-staging and 40% equivocal rate in cancers. Average clinical visual cancer judgement accuracy was 49% (with only 'fair' inter-rater agreement), many reporting uncertainty and higher reported decision confidence did not correspond to higher accuracy. This compared to 86% ML accuracy. Size was misjudged visually by a mean of 20% with polyp size underestimated in 4/6 and overestimated in 2/6. Subjective narratives regarding decision-making requested for 7/14 lesions revealed wide rationale variation between participants. CONCLUSION Current available clinical means of ambiguous rectal lesion assessment is suboptimal with wide inter-observer variation. Fluorescence based AI augmentation may advance this field via objective, explainable ML methods.
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Affiliation(s)
- Niall P Hardy
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland
| | - Alice Moynihan
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland
| | - Jeffrey Dalli
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland
| | | | - Philip D McEntee
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland
| | - Patrick A Boland
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland
| | - Peter M Neary
- Department of Surgery, University Hospital Waterford, University College Cork, Cork, Ireland
| | - Ronan A Cahill
- UCD Centre for Precision Surgery, University College Dublin, Dublin, Ireland.
- Department of Surgery, Mater Misericordiae University Hospital, 47 Eccles Street, Dublin 7, Ireland.
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Gangi-Burton A, Plumb AA, De Paepe KN, Godfrey EM, Halligan S, Higginson A, Khwaja S, Patel A, Taylor S. Paris classification of colonic polyps using CT colonography: prospective cohort study of interobserver variation. Eur Radiol 2024:10.1007/s00330-024-10631-9. [PMID: 38488970 DOI: 10.1007/s00330-024-10631-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/18/2023] [Accepted: 01/16/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND The Paris classification categorises colorectal polyp morphology. Interobserver agreement for Paris classification has been assessed at optical colonoscopy (OC) but not CT colonography (CTC). We aimed to determine the following: (1) interobserver agreement for the Paris classification using CTC between radiologists; (2) if radiologist experience influenced classification, gross polyp morphology, or polyp size; and (3) the extent to which radiologist classifications agreed with (a) colonoscopy and (b) a combined reference standard. METHODS Following ethical approval for this non-randomised prospective cohort study, seven radiologists from three hospitals classified 52 colonic polyps using the Paris system. We calculated interobserver agreement using Fleiss kappa and mean pairwise agreement (MPA). Absolute agreement was calculated between radiologists; between CTC and OC; and between CTC and a combined reference standard using all available imaging, colonoscopic, and histopathological data. RESULTS Overall interobserver agreement between the seven readers was fair (Fleiss kappa 0.33; 95% CI 0.30-0.37; MPA 49.7%). Readers with < 1500 CTC experience had higher interobserver agreement (0.42 (95% CI 0.35-0.48) vs. 0.33 (95% CI 0.25-0.42)) and MPA (69.2% vs 50.6%) than readers with ≥ 1500 experience. There was substantial overall agreement for flat vs protuberant polyps (0.62 (95% CI 0.56-0.68)) with a MPA of 87.9%. Agreement between CTC and OC classifications was only 44%, and CTC agreement with the combined reference standard was 56%. CONCLUSION Radiologist agreement when using the Paris classification at CT colonography is low, and radiologist classification agrees poorly with colonoscopy. Using the full Paris classification in routine CTC reporting is of questionable value. CLINICAL RELEVANCE STATEMENT Interobserver agreement for radiologists using the Paris classification to categorise colorectal polyp morphology is only fair; routine use of the full Paris classification at CT colonography is questionable. KEY POINTS • Overall interobserver agreement for the Paris classification at CT colonography (CTC) was only fair, and lower than for colonoscopy. • Agreement was higher for radiologists with < 1500 CTC experience and for larger polyps. There was substantial agreement when classifying polyps as protuberant vs flat. • Agreement between CTC and colonoscopic polyp classification was low (44%).
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Affiliation(s)
| | - Andrew A Plumb
- University College London Hospitals NHS Foundation Trust, London, UK.
| | - Katja N De Paepe
- Addenbrooke's Hospital, Cambridge, UK
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | | | - Steve Halligan
- Centre for Medical Imaging, University College London, London, UK
| | | | | | - Anisha Patel
- University College London Hospitals NHS Foundation Trust, London, UK
| | - Stuart Taylor
- Centre for Medical Imaging, University College London, London, UK
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Barsuk JH, Cohen ER, Patel RV, Keswani RN, Aadam AA, Wayne DB, Cameron KA, Komanduri S. Effect of Polypectomy Simulation-Based Mastery Learning on Skill Retention Among Practicing Endoscopists. ACADEMIC MEDICINE : JOURNAL OF THE ASSOCIATION OF AMERICAN MEDICAL COLLEGES 2024; 99:317-324. [PMID: 37934830 PMCID: PMC10922268 DOI: 10.1097/acm.0000000000005538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
PURPOSE Practicing endoscopists frequently perform and teach screening colonoscopies and polypectomies, but there is no standardized method to train and assess physicians who perform polypectomy procedures. The authors created a polypectomy simulation-based mastery learning (SBML) curriculum and hypothesized that completion of the curriculum would lead to immediate improvement in polypectomy skills and skill retention at 6 and 12 months after training. METHOD The authors performed a pretest-posttest cohort study with endoscopists who completed SBML and were randomized to follow-up at 6 or 12 months from May 2021 to August 2022. Participants underwent SBML training, including a pretest, a video lecture, deliberate practice, and a posttest. All learners were required to meet or exceed a minimum passing standard on a 17-item skills checklist before completing training and were randomized to follow-up at 6 or 12 months. The authors compared simulated polypectomy skills performance on the checklist from pretest to posttest and posttest to 6- or 12-month follow-up test. RESULTS Twenty-four of 30 eligible participants (80.0%) completed the SBML intervention, and 20 of 24 (83.3%) completed follow-up testing. The minimum passing standard was set at 93% of checklist items correct. The pretest passing rate was 4 of 24 participants (16.7%) compared with 24 of 24 participants (100%) at posttest ( P < .001). There were no significant differences in passing rates from posttest to combined 6- and 12-month posttest in which 18 of 20 participants (90.0%) passed. CONCLUSIONS Before training and despite years of clinical experience, practicing endoscopists demonstrated poor performance of polypectomy skills. SBML was an effective method for practicing endoscopists to acquire and maintain polypectomy skills during a 6- to 12-month period.
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Sakowitz S, Bakhtiyar SS, Mallick S, Khoraminejad B, Olmedo M, Croman M, Benharash P, Lee H. Decreasing rates of colectomy for benign neoplasms: A nationwide analysis. PLoS One 2023; 18:e0293389. [PMID: 37878628 PMCID: PMC10599571 DOI: 10.1371/journal.pone.0293389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Despite advances in endoscopic techniques for management of benign colonic neoplasms, a rise in rates of surgical treatment has been reported. We used a nationally representative cohort to characterize temporal trends, patient characteristics, and outcomes associated with colectomy for colonic neoplasms. METHODS All patients undergoing elective partial colectomy for benign or malignant colonic neoplasms were identified using the 2012-2019 National Inpatient Sample. Those presenting with inflammatory bowel disease, or experiencing intestinal perforation were excluded. Patients with benign neoplasms were classified as the Benign cohort (others: Malignant). Trends, characteristics, and outcomes were assessed between groups. RESULTS Of 569,280 colectomy procedures included for analysis, 153,435 (27.0%) were performed for benign lesions. The proportion of Benign operations decreased from 28.6% in 2012 to 23.7% in 2019 (P for trend<0.001). While overall national incidence of colectomy for benign neoplasms decreased from 2012 to 2019 (IRD -1.19, 95%CI -1.20- -1.19), Black patients demonstrated an incremental increase (IRD +0.04, 95%CI +0.02-0.06). On average, Benign was younger (66 [57-72] vs 68 years [58-77], P<0.001), and demonstrated a lower Elixhauser comorbidity index (2 [1-3] vs 3 [2-4], P<0.001), relative to Malignancy. Following adjustment, Benign demonstrated lower odds of in-hospital mortality (AOR 0.61, 95%CI 0.50-0.74; P<0.001), stoma creation (AOR 0.46, 95%CI 0.43-0.50; P<0.001), and infectious complications (AOR 0.68, 95%CI 0.63-0.73; P<0.001). CONCLUSIONS The present national study identifies a decrease in colectomy for benign polyps from 2012-2019. Future investigations should identify patients who would most benefit from surgical resection and address persistent inequities in access to screening and treatment for colonic neoplasms.
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Affiliation(s)
- Sara Sakowitz
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
| | - Syed Shahyan Bakhtiyar
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
- Department of Surgery, University of Colorado, Aurora, CO, United States of America
| | - Saad Mallick
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
| | - Baran Khoraminejad
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
| | - Manuel Olmedo
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
| | - Millicent Croman
- Department of Surgery, University of California, Los Angeles, CA, United States of America
| | - Peyman Benharash
- Cardiovascular Outcomes Research Laboratories (CORELAB), University of California, Los Angeles, CA, United States of America
- Department of Surgery, University of California, Los Angeles, CA, United States of America
| | - Hanjoo Lee
- Department of Surgery, University of California, Los Angeles, CA, United States of America
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Kawaguti FS, Kimura CMS, Moura RN, Safatle-Ribeiro AV, Nahas CSR, Marques CFS, de Rezende DT, Segatelli V, Cotti GCDC, Ribeiro Junior U, Maluf-Filho F, Nahas SC. Impact of a Routine Colorectal Endoscopic Submucosal Dissection in the Surgical Management of Nonmalignant Colorectal Lesions Treated in a Referral Cancer Center. Dis Colon Rectum 2023; 66:e834-e840. [PMID: 36574289 DOI: 10.1097/dcr.0000000000002554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Recent data show an increasing number of abdominal surgeries being performed for the treatment of nonmalignant colorectal polyps in the West but in settings in which colorectal endoscopic submucosal dissection is not routinely performed. This study evaluated the number of nonmalignant colorectal lesions referred to surgical treatment in a tertiary cancer center that incorporated magnification chromoendoscopy and endoscopic submucosal dissection as part of the standard management of complex colorectal polyps. OBJECTIVE The study aimed to estimate the number of patients with nonmalignant colorectal lesions referred to surgical resection at our institution after the standardization of routine endoscopic submucosal dissection and to describe outcomes for patients undergoing colorectal endoscopic submucosal dissection. DESIGN Single-center retrospective study from a prospectively collected database of endoscopic submucosal dissections and colorectal surgeries performed between January 2016 and December 2019. SETTING Reference cancer center. PATIENTS Consecutive adult patients with complex nonmalignant colorectal polyps were included. INTERVENTIONS Patients with nonmalignant colorectal polyps were treated by endoscopic submucosal dissection or surgery (elective colectomy, rectosigmoidectomy, low anterior resection, or proctocolectomy). MAIN OUTCOMES MEASURES The primary outcome measure was the percentage of patients referred to colorectal surgery for nonmalignant lesions. RESULTS In the study period, 1.1% of 825 colorectal surgeries were performed for nonmalignant lesions, and 97 complex polyps were endoscopically removed by endoscopic submucosal dissection. The en bloc, R0, and curative resection rates of endoscopic submucosal dissection were 91.7%, 83.5%, and 81.4%, respectively. The mean tumor size was 59 (SD 37.8) mm. Perforations during endoscopic submucosal dissection occurred in 3 cases, all treated with clipping. One patient presented with a delayed perforation 2 days after the endoscopic resection and underwent surgery. The mean follow-up period was 3 years, with no tumor recurrence in this cohort. LIMITATIONS Single-center retrospective study. CONCLUSIONS A workflow that includes assessment of the lesions with magnification chromoendoscopy and resection through endoscopic submucosal dissection can lead to a very low rate of abdominal surgery for nonmalignant colorectal lesions. See Video Abstract at http://links.lww.com/DCR/C123 . IMPACTO DE LA DISECCIN SUBMUCOSA ENDOSCPICA COLORRECTAL DE RUTINA EN EL MANEJO QUIRRGICO DE LESIONES COLORRECTALES NO MALIGNAS TRATADAS EN UN CENTRO ONCOLGICO DE REFERENCIA ANTECEDENTES:Datos recientes muestran un número cada vez mayor de cirugías abdominales realizadas para el tratamiento de pólipos colorrectales no malignos en Occidente, pero no en los entornos donde la disección submucosa endoscópica colorrectal se realiza de forma rutinaria. El estudio evaluó el número de lesiones colorrectales no malignas referidas a tratamiento quirúrgico en un centro oncológico terciario, que incorporó cromoendoscopia de aumento y disección submucosa endoscópica como parte del manejo estándar de pólipos colorrectales complejos.OBJETIVO:Estimar el número de pacientes con lesiones colorrectales no malignas referidos para resección quirúrgica en nuestra institución, después de la estandarización de la disección submucosa endoscópica de rutina y describir los resultados para los pacientes sometidos a disección submucosa endoscópica colorrectal.DISEÑO:Estudio retrospectivo de un solo centro, a partir de una base de datos recolectada prospectivamente de disecciones submucosas endoscópicas y cirugías colorrectales realizadas entre enero de 2016 y diciembre de 2019.AJUSTE:Centro oncológico de referencia.PACIENTES:Pacientes adultos consecutivos con pólipos colorrectales no malignos complejos.INTERVENCIONES:Pacientes con pólipos colorrectales no malignos tratados mediante disección submucosa endoscópica o cirugía (colectomía electiva, rectosigmoidectomía, resección anterior baja o proctocolectomía).PRINCIPALES MEDIDAS DE RESULTADO:La medida de resultado primario fue el porcentaje de pacientes remitidos a cirugía colorrectal por lesiones no malignas.RESULTADOS:En el período, 1,1% de 825 cirugías colorrectales fueron realizadas por lesiones no malignas y 97 pólipos complejos fueron extirpados por. disección submucosa endoscópica. Las tasas de resección en bloque, R0 y curativa de disección submucosa endoscópica fueron 91,7%, 83,5% y 81,4%, respectivamente. El tamaño tumoral medio fue de 59 (DE 37,8) mm. Se produjeron perforaciones durante la disección submucosa endoscópica en 3 casos, todos tratados con clipaje. Un paciente presentó una perforación diferida 2 días después de la resección endoscópica y fue intervenido quirúrgicamente. El seguimiento medio fue de 3 años, sin recurrencia tumoral en esta cohorte.LIMITACIONES:Estudio retrospectivo de un solo centro.CONCLUSIONES:Un flujo de trabajo que incluye la evaluación de las lesiones con cromoendoscopia de aumento y resección a través de disección submucosa endoscópica, puede conducir a una tasa muy baja de cirugía abdominal para lesiones colorrectales no malignas. Consulte Video Resumen en http://links.lww.com/DCR/C123 . (Traducción-Dr. Fidel Ruiz Healy ).
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Affiliation(s)
- Fábio S Kawaguti
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | - Cintia Mayumi Sakurai Kimura
- Division of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | - Renata Nobre Moura
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | | | - Caio Sergio Rizkallah Nahas
- Division of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | | | - Daniel Tavares de Rezende
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | - Vanderlei Segatelli
- Division of Pathology, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | | | - Ulysses Ribeiro Junior
- Division of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | - Fauze Maluf-Filho
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
| | - Sergio Carlos Nahas
- Division of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, Universidade de São Paulo, Brazil
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Parker J, Semedo L, Shenbagaraj L, Torkington J, Dolwani S. Planning management for complex colorectal polyps: a qualitative assessment of factors influencing decision-making among colonoscopists. BMJ Open Gastroenterol 2023; 10:bmjgast-2022-001097. [PMID: 37217234 DOI: 10.1136/bmjgast-2022-001097] [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: 01/06/2023] [Accepted: 04/01/2023] [Indexed: 05/24/2023] Open
Abstract
OBJECTIVE Endoscopic therapy is the recommended primary treatment for most complex colorectal polyps, but high colonic resection rates are reported. The aim of this qualitative study was to understand and compare between specialities, the clinical and non-clinical factors influencing decision making when planning management. DESIGN Semi-structured interviews were performed among colonoscopists across the UK. Interviews were conducted virtually and transcribed verbatim. Complex polyps were defined as lesions requiring further management planning rather than those treatable at the time of endoscopy. A thematic analysis was performed. Findings were coded to identify themes and reported narratively. RESULTS Twenty colonoscopists were interviewed. Four major themes were identified including gathering information regarding the patient and their polyp, aids to decision making, barriers in achieving optimal management and improving services. Participants advocated endoscopic management where possible. Factors such as younger age, suspicion of malignancy, right colon or difficult polyp location lead towards surgical intervention and were similar between surgical and medical specialties. Availability of expertise, timely endoscopy and challenges in referral pathways were reported barriers to optimal management. Experiences of team decision-making strategies were positive and advocated in improving complex polyp management. Recommendations based on these findings to improve complex polyp management are provided. CONCLUSION The increasing recognition of complex colorectal polyps requires consistency in decision making and access to a full range of treatment options. Colonoscopists advocated the availability of clinical expertise, timely treatment and education in avoiding surgical intervention and providing good patient outcomes. Team decision-making strategies for complex polyps may provide an opportunity to coordinate and improve these issues.
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Affiliation(s)
- Jody Parker
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
- Department of Colorectal Surgery, Cardiff and Vale University Health Board, Cardiff, UK
| | - Lenira Semedo
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Lavanya Shenbagaraj
- Department of Gastroenterology, United Lincolnshire Hospitals NHS Trust, Lincoln, UK
| | - Jared Torkington
- Department of Colorectal Surgery, Cardiff and Vale University Health Board, Cardiff, UK
| | - Sunil Dolwani
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
- Department of Colorectal Surgery, Cardiff and Vale University Health Board, Cardiff, UK
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Young EJ, Rajandran A, Philpott HL, Sathananthan D, Hoile SF, Singh R. Mucosal imaging in colon polyps: New advances and what the future may hold. World J Gastroenterol 2022; 28:6632-6661. [PMID: 36620337 PMCID: PMC9813932 DOI: 10.3748/wjg.v28.i47.6632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/23/2022] [Accepted: 11/23/2022] [Indexed: 12/19/2022] Open
Abstract
An expanding range of advanced mucosal imaging technologies have been developed with the goal of improving the detection and characterization of lesions in the gastrointestinal tract. Many technologies have targeted colorectal neoplasia given the potential for intervention prior to the development of invasive cancer in the setting of widespread surveillance programs. Improvement in adenoma detection reduces miss rates and prevents interval cancer development. Advanced imaging technologies aim to enhance detection without significantly increasing procedural time. Accurate polyp characterisation guides resection techniques for larger polyps, as well as providing the platform for the “resect and discard” and “do not resect” strategies for small and diminutive polyps. This review aims to collate and summarise the evidence regarding these technologies to guide colonoscopic practice in both interventional and non-interventional endoscopists.
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Affiliation(s)
- Edward John Young
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia
| | - Arvinf Rajandran
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
| | - Hamish Lachlan Philpott
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia
| | - Dharshan Sathananthan
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia
| | - Sophie Fenella Hoile
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia
| | - Rajvinder Singh
- Department of Gastroenterology, Lyell McEwin Hospital, Northern Adelaide Local Health Network, Elizabeth Vale 5031, South Australia, Australia
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia
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8
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Bustamante-Balén M. How to avoid overtreatment of benign colorectal lesions: Rationale for an evidence-based management. World J Gastroenterol 2022; 28:6619-6631. [PMID: 36620344 PMCID: PMC9813935 DOI: 10.3748/wjg.v28.i47.6619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/10/2022] [Accepted: 11/27/2022] [Indexed: 12/19/2022] Open
Abstract
Implementing population-based screening programs for colorectal cancer has led to an increase in the detection of large but benign histological lesions. Currently, endoscopic mucosal resection can be considered the standard technique for the removal of benign lesions of the colon due to its excellent safety profile and good clinical results. However, several studies from different geographic areas agree that many benign colon lesions are still referred for surgery. Moreover, the referral rate to surgery is not decreasing over the years, despite the theoretical improvement of endoscopic resection techniques. This article will review the leading causes for benign colorectal lesions to be referred for surgery and the influence of the endoscopist experience on the referral rate. It will also describe how to categorize a polyp as complex for resection and consider an endoscopist as an expert in endoscopic resection. And finally, we will propose a framework for the accurate and evidence-based treatment of complex benign colorectal lesions.
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Affiliation(s)
- Marco Bustamante-Balén
- Gastrointestinal Endoscopy Unit, Gastrointestinal Endoscopy Research Group, Hospital Universitari I Politècnic La Fe, Health Research Institute Hospital La Fe (IISLaFe), Valencia 46026, Spain
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9
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Luca M, Ciobanu A. Polyp detection in video colonoscopy using deep learning. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2022. [DOI: 10.3233/jifs-219276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Video colonoscopy automatic processing is a challenge and further development of computer assisted diagnosis is very helpful in correctness assessment of the exam, in e-learning and training, for statistics on polyps’ malignity or in polyps’ survey. New devices and programming languages are emerging and deep learning begun already to furnish astonishing results, in the quest for high speed and optimal polyp detection software. This paper presents a successful attempt in detecting the intestinal polyps in real time video colonoscopy with deep learning, using Mobile Net.
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Affiliation(s)
- Mihaela Luca
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
| | - Adrian Ciobanu
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
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10
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Ichkhanian Y, Zuchelli T, Watson A, Piraka C. Evolving management of colorectal polyps. Ther Adv Gastrointest Endosc 2021; 14:26317745211047010. [PMID: 34604745 PMCID: PMC8485258 DOI: 10.1177/26317745211047010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Advances in endoscopic technology have led to increased success in colorectal cancer (CRC) screening and polyp management, with reduction of CRC incidence and mortality. Despite these advances, CRC is still one of the leading causes of cancer deaths, and half of all CRC develops from lesions that were missed during colonoscopy while one-fifth of CRC arise from prior incomplete resection. Techniques to improve polyp detection are needed, along with optimization of complete resection of any abnormal lesions that are found. This article will review the currently available endoscopic resection techniques and will discuss where they fit in the management of polyps of different sizes and types, such as pedunculated versus nonpedunculated, and those with or without suspected invasion.
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Affiliation(s)
| | - Tobias Zuchelli
- Division of Gastroenterology and Hepatology, Henry Ford Hospital, Detroit, MI, USA
| | - Andrew Watson
- Division of Gastroenterology and Hepatology, Henry Ford Hospital, Detroit, MI, USA
| | - Cyrus Piraka
- Section Chief-Advanced Therapeutic Endoscopy, Division of Gastroenterology and Hepatology, Henry Ford Hospital, 2799 W Grand Blvd, Detroit, MI 48202, USA
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Spychalski M, Włodarczyk M, Winter K, Włodarczyk J, Dąbrowski I, Dziki A. Volume of surgical interventions for benign colorectal
tumors – an analysis of 3510 surgical and endoscopic
resections in the single colorectal center in Poland. POLISH JOURNAL OF SURGERY 2021; 93:11-19. [DOI: 10.5604/01.3001.0015.2617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Introduction:
Colorectal cancer is the most frequent neoplasm of the whole gastrointestinal track. Due to screening colonoscopy program, colorectal lesions are often diagnosed at early stage. The vast majority of them are possible to remove endoscopically. However, a substantial percentage of benign lesion in Western centers are still operated.
The aim of this article was to determine the percentage of surgical resections due to benign adenomas in the reference center of endoscopic submucosal dissection (ESD) and colorectal surgery in Poland.
Materials and Methods:
Retrospective analysis of 3 510 patients operated from 2015 to 2019 in Center of Bowel Treatment in Brzeziny.
Results:
We have analyzed 3 510 endoscopic and surgical procedures performed in the colon: 601 ESDs; 1 002 endoscopic mucosal resections (EMRs); and 1,907 surgical resections. Out of 601 ESDs, 57 invaded the submucosa, of which 29 (4.8%) were non-therapeutic ESDs. In 5 patients, due to occurrence of post-ESD perforation, an additional surgical intervention was necessary. Out of the 1,002 EMRs, 22 cases (2.2%) were diagnosed with deeply infiltrating cancers, which required a surgery. The overall percentage of the need for surgery in the endoscopically treated patients (ESD + mucosectomy) was 3.5% (56/1 603). Among resection surgeries, 15 of them (0.8%) ended with the diagnosis of a benign lesion in the postoperative histopathological examination.
Conclusions:
Inclusion advanced endoscopic techniques such as ESD to routine clinical practice in colorectal centers gives clear benefits for the patients. Well defined and standardized process of qualifying for appropriate treatment allows to significantly reduce the percentage of abdominal approach surgery due to benign colorectal lesions.
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Affiliation(s)
| | - Marcin Włodarczyk
- Department of General and Colorectal Surgery, Medical University of Lodz, Poland
| | | | - Jakub Włodarczyk
- Department of General and Colorectal Surgery, Medical University of Lodz, Poland
| | | | - Adam Dziki
- Department of General and Colorectal Surgery, Medical University of Lodz, Poland
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12
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Keswani RN, Crockett SD, Calderwood AH. AGA Clinical Practice Update on Strategies to Improve Quality of Screening and Surveillance Colonoscopy: Expert Review. Gastroenterology 2021; 161:701-711. [PMID: 34334168 DOI: 10.1053/j.gastro.2021.05.041] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/27/2021] [Accepted: 05/06/2021] [Indexed: 12/23/2022]
Abstract
The purpose of this American Gastroenterological Association Institute Clinical Practice Update was to review the available evidence and provide best practice advice regarding strategies to improve the quality of screening and surveillance colonoscopy. This review is framed around 15 best practice advice statements regarding colonoscopy quality that were agreed upon by the authors, based on a review of the available evidence and published guidelines. This is not a formal systematic review and thus no formal rating of the quality of evidence or strength of recommendation has been carried out.
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Affiliation(s)
- Rajesh N Keswani
- Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Seth D Crockett
- Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Audrey H Calderwood
- Section of Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
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13
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Lo MH, Lin CH, Wu CH, Tsou YK, Lee MH, Sung KF, Liu NJ. Management of biliary diseases after the failure of initial needle knife precut sphincterotomy for biliary cannulation. Sci Rep 2021; 11:14968. [PMID: 34294788 PMCID: PMC8298459 DOI: 10.1038/s41598-021-94361-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 07/05/2021] [Indexed: 02/08/2023] Open
Abstract
Endoscopic retrograde cholangiopancreatography is not always successful even with needle knife precut sphincterotomy (NKPS). How to manage these patients with initial NKPS failure has not been well studied. We report the outcomes of patients who received endoscopic and non-endoscopic rescue treatment after the initial NKPS failure. During the 15 years from 2004 to 2018, 87 patients with initial NKPS failure received interval endoscopic treatment (IET group, n = 43), percutaneous transhepatic biliary drainage (PTBD group, n = 25), or bile duct surgery (BDS group, n = 19) were retrospectively studied. Compared with the PTBD group, the prevalence of choledocholithiasis was higher (69.8% vs. 16.0%, p < 0.001), and malignant bile duct stricture were lower (20.9% vs. 76.0%, p < 0.001) in the IET group. Furthermore, the IET group had a significantly longer time interval between the first and second treatment procedures (4 days vs. 2 days, p = 0.001), a lower technique success rate (79.1% vs. 100%, p = 0.021), and a shorter length of hospital stay (7 days vs. 18 days, p < 0.001). Compared to the BDS group, the only significant finding was that the patients in the IET group were older. Although not statistically significant, the complication rate was lowest in the IET group (7.0%) while highest in the BDS group (15.8%). Complications in the IET group were also mild, as compared with the other two groups. In conclusion, IET should be considered after initial failed NKPS for deep biliary cannulation before contemplating more invasive treatment such as BDS. PTBD may be the alternative therapy for patients with malignant biliary obstruction.
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Affiliation(s)
- Min-Hao Lo
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
| | - Cheng-Hui Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
| | - Chi-Huan Wu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
| | - Yung-Kuan Tsou
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan.
| | - Mu-Hsien Lee
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
| | - Kai-Feng Sung
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
| | - Nai-Jen Liu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 5 Fu-Shin Street, Kweishan, Taoyuan, 333, Taiwan
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14
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Cocomazzi F, Gentile M, Perri F, Merla A, Bossa F, Piazzolla M, Ippolito A, Terracciano F, Giuliani AP, Cubisino R, Marra A, Carparelli S, Mileti A, Paolillo R, Fontana A, Copetti M, Di Leo A, Andriulli A. Interobserver agreement of the Paris and simplified classifications of superficial colonic lesions: a Western study. Endosc Int Open 2021; 9:E388-E394. [PMID: 33655038 PMCID: PMC7895665 DOI: 10.1055/a-1352-3437] [Citation(s) in RCA: 3] [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: 08/17/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023] Open
Abstract
Background and study aims The Paris classification of superficial colonic lesions has been widely adopted, but a simplified description that subgroups the shape into pedunculated, sessile/flat and depressed lesions has been proposed recently. The aim of this study was to evaluate the accuracy and inter-rater agreement among 13 Western endoscopists for the two classification systems. Methods Seventy video clips of superficial colonic lesions were classified according to the two classifications, and their size estimated. The interobserver agreement for each classification was assessed using both Cohen k and AC1 statistics. Accuracy was taken as the concordance between the standard morphology definition and that made by participants. Sensitivity analyses investigated agreement between trainees (T) and staff members (SM), simple or mixed lesions, distinct lesion phenotypes, and for laterally spreading tumors (LSTs). Results Overall, the interobserver agreement for the Paris classification was substantial (κ = 0.61; AC1 = 0.66), with 79.3 % accuracy. Between SM and T, the values were superimposable. For size estimation, the agreement was 0.48 by the κ-value, and 0.50 by AC1. For single or mixed lesions, κ-values were 0.60 and 0.43, respectively; corresponding AC1 values were 0.68 and 0.57. Evaluating the several different polyp subtypes separately, agreement differed significantly when analyzed by the k-statistics (0.08-0.12) or the AC1 statistics (0.59-0.71). Analyses of LSTs provided a κ-value of 0.50 and an AC1 score of 0.62, with 77.6 % accuracy. The simplified classification outperformed the Paris classification: κ = 0.68, AC1 = 0.82, accuracy = 91.6 %. Conclusions Agreement is often measured with Cohen's κ, but we documented higher levels of agreement when analyzed with the AC1 statistic. The level of agreement was substantial for the Paris classification, and almost perfect for the simplified system.
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Affiliation(s)
- Francesco Cocomazzi
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy,University of Bari, Section of Gastroenterology, Department of Emergency and Organ Transplantation, Bari, Italy
| | - Marco Gentile
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Francesco Perri
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Antonio Merla
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Fabrizio Bossa
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Mariano Piazzolla
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy,University of Bari, Section of Gastroenterology, Department of Emergency and Organ Transplantation, Bari, Italy
| | - Antonio Ippolito
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Fulvia Terracciano
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Arcangela Patrizia Giuliani
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Rossella Cubisino
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Antonella Marra
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Sonia Carparelli
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
| | - Alessia Mileti
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy,University of Bari, Section of Gastroenterology, Department of Emergency and Organ Transplantation, Bari, Italy
| | - Rosa Paolillo
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy,University of Bari, Section of Gastroenterology, Department of Emergency and Organ Transplantation, Bari, Italy
| | - Andrea Fontana
- Unit of Biostatistics, Fondazione “Casa Sollievo della Sofferenza”, IRCCS, San Giovanni Rotondo, Foggia, Italy
| | - Massimiliano Copetti
- Unit of Biostatistics, Fondazione “Casa Sollievo della Sofferenza”, IRCCS, San Giovanni Rotondo, Foggia, Italy
| | - Alfredo Di Leo
- University of Bari, Section of Gastroenterology, Department of Emergency and Organ Transplantation, Bari, Italy
| | - Angelo Andriulli
- Fondazione “Casa Sollievo della Sofferenza”, IRCCS, Gastroenterology and Endoscopy Units, San Giovanni Rotondo, Foggia, Italy
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15
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Kuo E, Wang K, Liu X. A Focused Review on Advances in Risk Stratification of Malignant Polyps. Gastroenterology Res 2020; 13:163-183. [PMID: 33224364 PMCID: PMC7665855 DOI: 10.14740/gr1329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer is the third most common cancer in both men and women in the United States, with most cases arising from precursor adenomatous polyps. Colorectal malignant polyps are defined as cancerous polyps that consist of tumor cells invading through the muscularis mucosae into the underlying submucosa (pT1 tumor). It has been reported that approximately 0.5-8.3% of colorectal polyps are malignant polyps, and the potential for lymph node metastasis in these polyps ranges from 8.5% to 16.1%. Due to their clinical significance, recognition of malignant polyps is critical for clinical teams to make treatment decisions and establish appropriate surveillance schedules after local excision of the polyps. There is a rapidly developing interest in malignant polyps within the literature as a result of an increasing number of identifiable adverse histologic features and recent advancements in endoscopic treatment techniques. The purpose of this paper is to have a focused review of the recent histopathologic literature of malignant polyps.
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Affiliation(s)
- Enoch Kuo
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA.,Both authors contributed equally to this manuscript
| | - Kai Wang
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA.,Both authors contributed equally to this manuscript
| | - Xiuli Liu
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA
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16
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Kaltenbach T, Anderson JC, Burke CA, Dominitz JA, Gupta S, Lieberman D, Robertson DJ, Shaukat A, Syngal S, Rex DK. Endoscopic Removal of Colorectal Lesions-Recommendations by the US Multi-Society Task Force on Colorectal Cancer. Gastrointest Endosc 2020; 91:486-519. [PMID: 32067745 DOI: 10.1016/j.gie.2020.01.029] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tonya Kaltenbach
- Veterans Affairs San Francisco, University California-San Francisco, San Francisco, California.
| | - Joseph C Anderson
- Veterans Affairs Medical Center, White River Junction, Vermont; Geisel School of Medicine at Dartmouth, Hanover, New Hampshire; University of Connecticut Health Center, Farmington, Connecticut
| | - Carol A Burke
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio
| | - Jason A Dominitz
- Veterans Affairs Puget Sound Health Care System, Seattle, Washington; University of Washington School of Medicine, Seattle, Washington
| | - Samir Gupta
- Veterans Affairs San Diego Healthcare System, San Diego, California; University of California-San Diego, San Diego, California
| | | | - Douglas J Robertson
- Veterans Affairs Medical Center, White River Junction, Vermont; Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Aasma Shaukat
- Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota; University of Minnesota, Minneapolis, Minnesota
| | - Sapna Syngal
- Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Douglas K Rex
- Indiana University School of Medicine, Indianapolis, Indiana
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17
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Endoscopic Removal of Colorectal Lesions: Recommendations by the US Multi-Society Task Force on Colorectal Cancer. Am J Gastroenterol 2020; 115:435-464. [PMID: 32058340 DOI: 10.14309/ajg.0000000000000555] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Kaltenbach T, Anderson JC, Burke CA, Dominitz JA, Gupta S, Lieberman D, Robertson DJ, Shaukat A, Syngal S, Rex DK. Endoscopic Removal of Colorectal Lesions-Recommendations by the US Multi-Society Task Force on Colorectal Cancer. Gastroenterology 2020; 158:1095-1129. [PMID: 32122632 DOI: 10.1053/j.gastro.2019.12.018] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tonya Kaltenbach
- Veterans Affairs San Francisco, University California-San Francisco, San Francisco, California.
| | - Joseph C Anderson
- Veterans Affairs Medical Center, White River Junction, Vermont; Geisel School of Medicine at Dartmouth, Hanover, New Hampshire; University of Connecticut Health Center, Farmington, Connecticut
| | - Carol A Burke
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio
| | - Jason A Dominitz
- Veterans Affairs Puget Sound Health Care System, Seattle, Washington; University of Washington School of Medicine, Seattle, Washington
| | - Samir Gupta
- Veterans Affairs San Diego Healthcare System, San Diego, California; University of California-San Diego, San Diego, California
| | | | - Douglas J Robertson
- Veterans Affairs Medical Center, White River Junction, Vermont; Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Aasma Shaukat
- Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota; University of Minnesota, Minneapolis, Minnesota
| | - Sapna Syngal
- Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Douglas K Rex
- Indiana University School of Medicine, Indianapolis, Indiana
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19
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Ponugoti PL, Broadley HM, Garcia J, Rex DK. Endoscopic management of large ileocecal valve lesions over an 18-year interval. Endosc Int Open 2019; 7:E1646-E1651. [PMID: 31788547 PMCID: PMC6877426 DOI: 10.1055/a-0990-9035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 04/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background and study aims Ileocecal valve (ICV) lesions are challenging to remove endoscopically. Patients and methods This was a retrospective cohort study, performed at an academic tertiary US hospital. Sessile polyps or flat ICV lesions ≥ 20 mm in size referred for endoscopic mucosal resection (EMR) were included. Successful resection rates, complication rates and recurrence were compared to lesions ≥ 20 mm in size not located on the ICV. Results During an 18-year interval, there were 118 ICV lesions ≥ 20 mm with mean size 28.6 mm (44.9 % females; mean age 71.6 years), comprising 9.03 % of all referred polyps. Ninety ICV lesions (76.3 %) were resected endoscopically, compared to 91.3 % of non-ICV lesions ( P < 0.001). However, in the most recent 8 years, successful EMR of ICV lesions increased to 93 %. Conventional adenomas comprised 92.2 % of ICV lesions and 7.8 % were serrated. Delayed hemorrhage and perforation occurred in 3.3 % and 0 % of ICV lesions, respectively, compared to 4.8 % and 0.5 % in the non-ICV group. At first follow-up, rates of residual polyp in the ICV and non-ICV groups were 16.5 % and 13.6 %, respectively ( P = 0.485). At second follow-up residual rates in the ICV and non-ICV lesion groups were 18.6 % and 6.7 %, respectively ( P = .005). Conclusions Large ICV polyps are a common source of tertiary referrals. Over an 18-year experience, risk of EMR for ICV polyps was numerically lower, and risk of recurrence was numerically higher at first follow and significantly higher at second follow-up compared to non-ICV polyps.
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Affiliation(s)
- Prasanna L. Ponugoti
- Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine
| | - Heather M. Broadley
- Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine
| | - Jonathan Garcia
- Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine
| | - Douglas K. Rex
- Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine,Corresponding author Douglas K. Rex, MD 4100Indiana University Hospital550 North University BoulevardIndianapolis, IN 46202+1-317-948-7057
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20
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Duloy AM, Keswani RN. Assessing the Quality of Polypectomy and Teaching Polypectomy. Gastrointest Endosc Clin N Am 2019; 29:587-601. [PMID: 31445684 DOI: 10.1016/j.giec.2019.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ineffective polypectomy technique may lead to incomplete polyp resection, high complication rates, interval colorectal cancer, and costly referral to surgery. Despite its central importance to endoscopy, training in polypectomy is not standardized nor has the most effective training approach been defined. Polypectomy competence is rarely reported and quality metrics for this skill are lacking. Use of tools and measurements to assess polypectomy outcomes is low. There is a need for standardization of training and remediation in polypectomy; defining standards of competent polypectomy and how it is feasibly measured; and integration of polypectomy quality metrics into training programs and the accreditation process.
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Affiliation(s)
- Anna M Duloy
- Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Center, 1635, Aurora CT, Aurora, CO 80045, USA
| | - Rajesh N Keswani
- Department of Gastroenterology and Hepatology, Northwestern University, 676 North Street Clair, Suite 1400, Chicago, IL 60611, USA.
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21
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Patel SG, Duloy A, Kaltenbach T, Hall M, Kahi C, Pohl H, Rastogi A, Hammad H, Soetikno R, Shergill A, Simon V, Nguyen T, Ezekwe E, Ahi T, Keswani RN, Wani S. Development and validation of a video-based cold snare polypectomy assessment tool (with videos). Gastrointest Endosc 2019; 89:1222-1230.e2. [PMID: 30844372 DOI: 10.1016/j.gie.2019.02.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/02/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Polyps <1 cm are the most commonly found polyps during colonoscopy. Cold snare removal is preferred given the significantly higher rate of incomplete resection associated with piecemeal biopsy forceps resection. There are currently no standardized tools to assess competence in cold snare polypectomy. This study aimed to develop and validate a cold snare polypectomy assessment tool (CSPAT). METHODS Experts in cold snare polypectomy used a Delphi method to develop the CSPAT. Metrics with a greater than 85% agreement as being "important" or "very important" were included in the CSPAT. The tool included evaluation of polyp inspection, positioning, appropriate ensnarement of tissue to ensure a rim of normal tissue, tissue retrieval, and postpolypectomy site inspection. Experts in cold snare polypectomy used the CSPAT to evaluate preselected videos that were previously evaluated using the Direct Observation of Polypectomy Skills (DOPyS) tool. Interobserver agreement was evaluated. CSPAT scores were compared with DOPyS scores to assess content validity. RESULTS Sixteen experts developed the 12-item CSPAT, and 13 experts reviewed 55 videos. There was a moderate degree of agreement in 10 metrics (κ = .52-.59) and a substantial degree of agreement (κ = .61-.63) in the other 2. There was a strong correlation between the mean of individual metrics 1 to 12 compared with the global competence assessment (ρ = .88, P < .001). There was a moderate correlation between the average overall DOPyS score and the overall CSPAT competence score (ρ = .56, P < .001). CONCLUSIONS We have developed and validated a customized CSPAT that can be easily applied to video-based assessments to assess competence in training and among practicing endoscopists.
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Affiliation(s)
- Swati G Patel
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA; Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colorado, USA
| | - Anna Duloy
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA; Northwestern University, Chicago, Illinois, USA
| | | | - Matt Hall
- Children's Hospital Association, Lenexa, Kansas, USA
| | - Charles Kahi
- Indiana University, Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana, USA
| | - Heiko Pohl
- Veterans Affairs Medical Center, White River Junction, Vermont, USA
| | | | - Hazem Hammad
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA; Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colorado, USA
| | - Roy Soetikno
- Singapore General Hospital, Singapore, Singapore
| | | | - Violette Simon
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
| | - Tiffany Nguyen
- Veterans Affairs Medical Center, San Francisco, California, USA
| | - Eze Ezekwe
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
| | - Tara Ahi
- Veterans Affairs Medical Center, San Francisco, California, USA
| | | | - Sachin Wani
- University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
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22
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Duloy AM, Kaltenbach TR, Wood M, Gregory DL, Keswani RN. Colon polypectomy report card improves polypectomy competency: results of a prospective quality improvement study (with video). Gastrointest Endosc 2019; 89:1212-1221. [PMID: 30825535 DOI: 10.1016/j.gie.2019.02.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 02/06/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Polypectomy competency varies significantly among providers. Poor polypectomy technique may lead to interval cancer and/or adverse events. Our aim was to determine the effect of a polypectomy skills report card on subsequent polypectomy performance. METHODS We conducted a 3-phase, prospective, single-blinded study. In phase 1 ("baseline"), we graded 10 polypectomies per endoscopist using the Direct Observation of Polypectomy Skills (DOPyS) tool (scores 1-4); mean overall scores ≥3 are competent. In phase 2 ("pre-report card"), we selected 10 additional polypectomies per endoscopist. We subsequently gave endoscopists a report card with baseline scores and instructional videos demonstrating optimal polypectomy technique. In phase 3 ("post-report card"), 10 additional polypectomies per endoscopist were selected. Raters, blinded to study phase, graded 10 pre- and 10 post-report card polypectomies per endoscopist. We compared mean DOPyS scores and rate of competent polypectomy in the pre- and post-report card phases. RESULTS We graded 110 pre- and 110 post-report card polypectomies performed by 11 endoscopists. The mean DOPyS score increased between the pre- and post-report card phases (2.7 ± .9 vs 3.0 ± .8, P = .01); this improvement was seen for diminutive (P < .0001) but not for small-to-large polyps. Rate of competent polypectomy significantly improved from the pre- to post-report card phase (56% vs 69%, P = .04); this improvement was seen for diminutive (57% vs 81%, P = .001) but not for small-to-large polyps (55% vs 36%, P = .2). CONCLUSIONS Report cards with educational videos effectively improved polypectomy technique, primarily because of improvements in resecting diminutive polyps. The improved competency and decreased piecemeal resection may reduce the risk of polyp recurrence. Further education is needed to improve larger polyp resection.
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Affiliation(s)
- Anna M Duloy
- Department of Gastroenterology and Hepatology, University of Colorado, Aurora, Colorado, USA
| | - Tonya R Kaltenbach
- Department of Gastroenterology, University of California, San Francisco, San Francisco, California, USA
| | - Mariah Wood
- Department of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
| | - Dyanna L Gregory
- Department of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
| | - Rajesh N Keswani
- Department of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
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Role of Magnification Chromoendoscopy in the Management of Colorectal Neoplastic Lesions Suspicious for Submucosal Invasion. Dis Colon Rectum 2019; 62:422-428. [PMID: 30730457 DOI: 10.1097/dcr.0000000000001343] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Correctly predicting the depth of tumor invasion in the colorectal wall is crucial for successful endoscopic resection of superficial colorectal neoplasms. OBJECTIVE The aim of this study was to assess the accuracy of magnifying chromoendoscopy in a Western medical center to predict the depth of invasion by the pit pattern classification in patients with colorectal neoplasms with a high risk of submucosal invasion. DESIGN This single-center retrospective study, from a prospectively collected database, was conducted between April 2009 and June 2015. SETTINGS The study was conducted at a single academic center. PATIENTS Consecutive patients with colorectal neoplasms with high risk of submucosal invasion were included. These tumors were defined by large (≥20 mm) sessile polyps (nonpedunculated), laterally spreading tumors, or depressed lesions of any size. INTERVENTIONS Patients underwent magnifying chromoendoscopy and were classified according to the Kudo pit pattern. The therapeutic decision, endoscopic or surgery, was defined by the magnification assessment. MAIN OUTCOME MEASURES Sensitivity, specificity, and positive and negative predictive values of magnifying chromoendoscopy for assessment of these lesions were determined. RESULTS A total of 123 lesions were included, with a mean size of 54.0 ± 37.1 mm. Preoperative magnifying chromoendoscopy with pit pattern classification had 73.3% sensitivity, 100% specificity, 100% positive predictive value, 96.4% negative predictive value, and 96.7% accuracy to predict depth of invasion and consequently to guide the appropriate treatment. Thirty-three rectal lesions were also examined by MRI, and 31 were diagnosed as T2 lesions. Twenty two (70.1%) of these lesions were diagnosed as noninvasive by magnifying colonoscopy, were treated by endoscopic resection, and met the curative criteria. LIMITATIONS This was a single-center retrospective study with a single expert endoscopist experience. CONCLUSIONS Magnifying chromoendoscopy is highly accurate for assessing colorectal neoplasms suspicious for submucosal invasion and can help to select the most appropriate treatment. See Video Abstract at http://links.lww.com/DCR/A920.
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Buijs MM, Steele RJC, Buch N, Kolbro T, Zimmermann-Nielsen E, Kobaek-Larsen M, Baatrup G. Reproducibility and accuracy of visual estimation of polyp size in large colorectal polyps. Acta Oncol 2019; 58:S37-S41. [PMID: 30897992 DOI: 10.1080/0284186x.2019.1588990] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Previous studies indicate that visual size estimation (in situ) of polyp size tends to differ from postfixation measurements, which effects allocation to surveillance intervals. Little is known about interobserver variation of in-situ measurements of large polyps. The primary objective was to assess interobserver variation of in situ measurements of large colorectal polyps. Secondary objectives were the agreement of in situ measurements with postfixation measurements, and the agreement on detection of ≥20 mm polyps between these measurements. MATERIAL AND METHODS Interobserver variability of in situ polyp size measurements was assessed between a diagnostic colonoscopy and the secondary therapeutic colonoscopy by dedicated endoscopists, in patients that were referred for an advanced polypectomy. After excision pre- and postfixation polyp sizes were measured with a ruler in three dimensions. RESULTS A total of 40 patients, with 45 polyps, were included in the study. The average difference between the two in situ measurements was 2.4 mm (95% confidence interval (CI): -0.4-5.2). The differences between the first in situ, second in situ and pre-fixation measurement in comparison to postfixation measurements were 1.8 mm (95% CI: -1.2-4.9), 0.1 mm (95% CI: -1.5-1.8) and 1.0 mm (95% CI: -0.2-2.2). Cohen's Kappa on detection of ≥20 mm polyps in agreement with postfixation measurements was 0.65 in the primary and 0.88 in the secondary in situ measurements. CONCLUSION This study shows a variation between in situ size measurements of large polyps. Improvements in daily clinical routines can be made by using an instrument to compare polyp size with and refraining from rounding sizes up or down. A randomized controlled trial assessing which instruments should be used for in-situ measurements of large polyps is warranted, in order to optimize size measurements of large colorectal polyps.
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Affiliation(s)
- Maria Magdalena Buijs
- Department of Surgery, Odense University Hospital, Svendborg, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Odense Patient Data Explorative Network OPEN, University of Southern Denmark, Odense, Denmark
| | | | - Niels Buch
- Department of Surgery, Odense University Hospital, Svendborg, Denmark
| | - Thomas Kolbro
- Department of Surgery, Odense University Hospital, Svendborg, Denmark
| | | | - Morten Kobaek-Larsen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Gunnar Baatrup
- Department of Surgery, Odense University Hospital, Svendborg, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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Dattani M, Moran BJ. Understanding variations in the treatment of significant polyps and early colorectal cancer. Colorectal Dis 2019; 21 Suppl 1:57-59. [PMID: 30809918 DOI: 10.1111/codi.14508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 10/08/2018] [Indexed: 02/08/2023]
Affiliation(s)
- M Dattani
- Pelican Cancer Foundation, Basingstoke, UK
| | - B J Moran
- Basingstoke and North Hampshire Hospital, Basingstoke, UK
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Dattani M, Crane S, Battersby NJ, Di Fabio F, Saunders BP, Dolwani S, Rutter MD, Moran BJ. Variations in the management of significant polyps and early colorectal cancer: results from a multicentre observational study of 383 patients. Colorectal Dis 2018; 20:1088-1096. [PMID: 29999580 DOI: 10.1111/codi.14342] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/11/2018] [Indexed: 02/08/2023]
Abstract
AIM The concept of significant polyps and early colorectal cancer (SPECC) encompasses complex polyps not amenable to routine snare polypectomy or where malignancy cannot be excluded. Surgical resection (SR) offers definitive treatment, but is overtreatment for the majority which are benign and amenable to less invasive endoscopic resection (ER). The aim of this study was to investigate variations in the management and outcomes of significant colorectal polyps. METHOD This was a retrospective observational study of significant colorectal polyps, defined as nonpedunculated lesions of ≥ 20 mm size, diagnosed across nine UK hospitals in 2014. Inclusion criteria were endoscopically or histologically benign polyps at biopsy. RESULTS A total of 383 patients were treated by primary ER (87.2%) or SR (12.8%). Overall, 108/383 (28%) polyps were detected in the Bowel Cancer Screening Programme (BCSP). Primary SR was associated with a significantly longer length of stay and major complications (P < 0.01). Of the ER polyps, 290/334 (86.8%) patients were treated without undergoing surgery. The commonest indication for secondary surgery was unexpected polyp cancer, and of these cases 60% had no residual cancer in the specimen. Incidence of unexpected cancer was 10.7% (n = 41) and was similar between ER and SR groups (P = 0.11). On multivariate analysis, a polyp size of > 30 mm and non-BCSP status were independent risk factors for primary SR [OR 2.51 (95% CI 1.08-5.82), P = 0.03]. CONCLUSION ER is safe and feasible for treating significant colorectal polyps. Robust accreditation within the BCSP has led to improvements in management, with lower rates of SR compared with non-BCSP patients. Standardization, training in polyp assessment and treatment within a multidisciplinary team may help to select appropriate treatment strategies and improve outcomes.
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Affiliation(s)
- M Dattani
- Pelican Cancer Foundation, Basingstoke, UK
| | - S Crane
- Pelican Cancer Foundation, Basingstoke, UK
| | - N J Battersby
- Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - F Di Fabio
- Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - B P Saunders
- St Mark's Hospital and Academic Institute, London, UK
| | - S Dolwani
- School of Medicine, Cardiff University, Cardiff, UK
| | - M D Rutter
- Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK
| | - B J Moran
- Basingstoke and North Hampshire Hospital, Basingstoke, UK
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Radiologic Evaluation of Clinically Benign Rectal Neoplasms May Not Be Necessary Before Local Excision. Dis Colon Rectum 2018; 61:1163-1169. [PMID: 30113341 DOI: 10.1097/dcr.0000000000001168] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Local excision may be curative for benign and malignant rectal neoplasms. Because many early rectal cancers are discovered incidentally after local excision of clinically benign lesions, it is unclear whether preoperative imaging with transrectal ultrasound or MRI affects management. OBJECTIVE The purpose of this study was to determine the diagnostic characteristics and effect of preoperative imaging on the incidence of malignancy in benign rectal lesions undergoing local excision. DESIGN Prospective data from 2 institutions were included. Coarsened exact matching created a balanced cohort comparing imaging and no-imaging groups. SETTING The study was conducted at high-volume specialist referral hospitals. PATIENTS Adult patients undergoing local excision via transanal endoscopic surgery between 1997 and 2016 for clinically benign rectal neoplasms were included. INTERVENTION The study intervention included preoperative imaging with transrectal ultrasound and/or MRI. MAIN OUTCOME MEASURES We measured the incidence of malignancy and diagnostic accuracy of preoperative imaging. RESULTS A total of 620 patients were included (272 with preoperative imaging and 348 without). There were 250 patients undergoing transrectal ultrasound, and 24 patients undergoing MRI (2 patients underwent both). Transrectal ultrasound and MRI correctly identified malignant polyps in 50% (11/22) and 44% (8/18). Overall agreement for benign versus malignant polyps between preoperative imaging and final pathology was κ = 0.30 (95% CI, 0.18-0.41) for transrectal ultrasound and 0.29 (95% CI, 0.01-0.57) for MRI. In both the overall and unmatched cohorts, the incidence of malignancy, margin involvement, and proportion of patients requiring salvage surgery was similar. LIMITATIONS Data were obtained from 2 institutions with different equipment over a long time period. CONCLUSIONS Preoperative imaging did not accurately identify malignancy in clinically benign rectal lesions and did not affect the incidence of malignancy, margin involvement, or proportion of patients requiring salvage surgery. Therefore, preoperative imaging may not be necessary for clinically benign lesions undergoing local excision. See Video Abstract at http://links.lww.com/DCR/A695.
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Quality Matters: Improving the Quality of Care for Patients With Complex Colorectal Polyps. Am J Gastroenterol 2018; 113:317-321. [PMID: 29112201 PMCID: PMC6245575 DOI: 10.1038/ajg.2017.409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Duloy AM, Kaltenbach TR, Keswani RN. Assessing colon polypectomy competency and its association with established quality metrics. Gastrointest Endosc 2018; 87:635-644. [PMID: 28882577 DOI: 10.1016/j.gie.2017.08.032] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 08/20/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Inadequate polypectomy leads to incomplete resection, interval colorectal cancer, and adverse events. However, polypectomy competency is rarely reported, and quality metrics are lacking. The primary aims of this study were to assess polypectomy competency among a cohort of gastroenterologists and to measure the correlation between polypectomy competency and established colonoscopy quality metrics (adenoma detection rate and withdrawal time). METHODS We conducted a prospective observational study to assess polypectomy competency among 13 high-volume screening colonoscopists at an academic medical center. Over 6 weeks, we made video recordings of ≥28 colonoscopies per colonoscopist and randomly selected 10 polypectomies per colonoscopist for evaluation. Two raters graded the polypectomies by using the Direct Observation of Polypectomy Skills, a polypectomy competency assessment tool, which assesses individual polypectomy skills and overall competency. RESULTS We evaluated 130 polypectomies. A total of 83 polypectomies (64%) were rated as competent, which was more likely for diminutive (70%) than small and/or large polyps (50%, P = .03). Overall Direct Observation of Polypectomy Skills competency scores varied significantly among colonoscopists (P = .001), with overall polypectomy competency rates ranging between 30% and 90%. Individual skills scores, such as accurately directing the snare over the lesion (P = .02) and trapping an appropriate amount of tissue within the snare (P = .001) varied significantly between colonoscopists. Polypectomy competency rates did not significantly correlate with the adenoma detection rate (r = 0.4; P = .2) or withdrawal time (r = 0.2; P = .5). CONCLUSIONS Polypectomy competency varies significantly among colonoscopists and does not sufficiently correlate with established quality metrics. Given the clinical implications of suboptimal polypectomy, efforts to educate colonoscopists in polypectomy techniques and develop a metric of polypectomy quality are needed.
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Affiliation(s)
- Anna M Duloy
- Department of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
| | - Tonya R Kaltenbach
- Department of Gastroenterology, University of California, San Francisco and Department of Veterans Affairs, San Francisco Veterans Affairs Medical Center, San Francisco, California, USA
| | - Rajesh N Keswani
- Department of Gastroenterology and Hepatology, Northwestern University, Chicago, Illinois, USA
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Abstract
PUPRPOSE Benign polyps that are technically challenging and unsafe to remove via polypectomy are known as complex polyps. Concerns regarding safety and completeness of resection dictate they undergo advanced endoscopic techniques, such as endoscopic mucosal resection or surgery. We provide a comprehensive overview of complex polyps and current treatment options. METHODS A review of the English literature was conducted to identifyarticles describing the management of complex polyps of the colon and rectum. RESULTS Endoscopic mucosal resection is the standard of care for the majority of complex polyps. Only polyps that fail endoscopic mucosal resection or are highly suspicious of invasive cancer but which cannot be removed endoscopically warrant surgery. CONCLUSION Several factors influence the treatment of a complex polyp; therefore, there cannot be a "one-size-fitsall" approach. Treatment should be tailored to the lesion's characteristics, the risk of adverse events, and the resources available to the treating physician.
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Peery AF, Shaheen NJ, Cools KS, Baron TH, Koruda M, Galanko JA, Grimm IS. Morbidity and mortality after surgery for nonmalignant colorectal polyps. Gastrointest Endosc 2018; 87:243-250.e2. [PMID: 28408327 PMCID: PMC5634910 DOI: 10.1016/j.gie.2017.03.1550] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 03/28/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Despite evidence that most nonmalignant colorectal polyps can be managed endoscopically, a substantial proportion of patients with a nonmalignant colorectal polyp are still sent to surgery. Risks associated with this surgery are not well characterized. We describe 30-day postoperative morbidity and mortality and explore risk factors for adverse events in patients undergoing surgical resection for nonmalignant colorectal polyps. METHODS We analyzed data collected prospectively as part of the National Surgical Quality Improvement Program. Our analysis included 12,732 patients who underwent elective surgery for a nonmalignant colorectal polyp from 2011 through 2014. We report adverse events within 30 days of the index surgery. Modified Poisson regression was used to estimate risk ratios and 95% confidence intervals. RESULTS Thirty-day mortality was .7%. The risk of a major postoperative adverse event was 14%. Within 30 days of resection, 7.8% of patients were readmitted and 3.6% of patients had a second major surgery. The index surgery resulted in a colostomy in 1.8% and ileostomy in .4% of patients. Patients who had surgical resection of a nonmalignant polyp in the rectum or anal canal compared with the colon had a risk ratio of 1.58 (95% confidence interval, 1.09-2.28) for surgical site infection and 6.51 (95% confidence interval, 4.97-8.52) for ostomy. CONCLUSIONS Surgery for a nonmalignant colorectal polyp is associated with significant morbidity and mortality. A better understanding of the risks and benefits associated with surgical management of nonmalignant colorectal polyps will better inform discussions regarding the relative merits of management strategies.
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Affiliation(s)
- Anne F. Peery
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Nicholas J. Shaheen
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Katherine S. Cools
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Todd H. Baron
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Mark Koruda
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Joseph A. Galanko
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Ian S. Grimm
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
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Abstract
Difficult colorectal polyps represent lesions that pose a challenge to traditional endoscopic snare polypectomy. These polyps have historically been managed by surgical resection. Currently, several less invasive options are available to avoid colectomy. Repeat colonoscopy and snare polypectomy by an expert endoscopist, endoscopic mucosal resection, endoscopic submucosal dissection, and combined endoscopic and laparoscopic surgery have been developed to remove difficult polyps without the need for formal surgical resection. Patients with rectal polyps have the advantage of additional transanal minimally invasive techniques to enhance their resectability. Today, most colorectal polyps can be managed without the need for formal surgical resection.
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Affiliation(s)
- Mark J Pidala
- Colon & Rectal Surgery, University of Texas/McGovern Medical School, 800 Peakwood Drive, Suite 2C, Houston, TX 77090, USA.
| | - Marianne V Cusick
- Colon & Rectal Surgery, University of Texas/McGovern Medical School, Smith Tower, Suite 2307, 6550 Fannin Street, Houston, TX 77030, USA
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Training and competency in endoscopic mucosal resection. TECHNIQUES IN GASTROINTESTINAL ENDOSCOPY 2017. [DOI: 10.1016/j.tgie.2017.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Kaminski MF, Thomas-Gibson S, Bugajski M, Bretthauer M, Rees CJ, Dekker E, Hoff G, Jover R, Suchanek S, Ferlitsch M, Anderson J, Roesch T, Hultcranz R, Racz I, Kuipers EJ, Garborg K, East JE, Rupinski M, Seip B, Bennett C, Senore C, Minozzi S, Bisschops R, Domagk D, Valori R, Spada C, Hassan C, Dinis-Ribeiro M, Rutter MD. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterol J 2017; 5:309-334. [PMID: 28507745 PMCID: PMC5415221 DOI: 10.1177/2050640617700014] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 02/27/2017] [Indexed: 12/13/2022] Open
Abstract
The European Society of Gastrointestinal Endoscopy and United European Gastroenterology present a short list of key performance measures for lower gastrointestinal endoscopy. We recommend that endoscopy services across Europe adopt the following seven key performance measures for lower gastrointestinal endoscopy for measurement and evaluation in daily practice at a center and endoscopist level: 1 rate of adequate bowel preparation (minimum standard 90%); 2 cecal intubation rate (minimum standard 90%); 3 adenoma detection rate (minimum standard 25%); 4 appropriate polypectomy technique (minimum standard 80%); 5 complication rate (minimum standard not set); 6 patient experience (minimum standard not set); 7 appropriate post-polypectomy surveillance recommendations (minimum standard not set). Other identified performance measures have been listed as less relevant based on an assessment of their importance, scientific acceptability, feasibility, usability, and comparison to competing measures.
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Affiliation(s)
- Michal F Kaminski
- Department of Gastroenterology, Hepatology and Oncology, Medical Center for Postgraduate Education, Warsaw, Poland
- Departments of Gastroenterological Oncology and Cancer Prevention, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
- Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Siwan Thomas-Gibson
- Wolfson Unit for Endoscopy, St. Mark’s Hospital, Harrow, and Imperial College, London, UK
| | - Marek Bugajski
- Department of Gastroenterology, Hepatology and Oncology, Medical Center for Postgraduate Education, Warsaw, Poland
- Departments of Gastroenterological Oncology and Cancer Prevention, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Michael Bretthauer
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
- Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Colin J Rees
- South Tyneside NHS Foundation Trust, South Tyneside, UK
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, University of Amsterdam, Amsterdam, The Netherlands
| | - Geir Hoff
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
- Department of Research and Development, Telemark Hospital, Skien, Norway
- Cancer Registry of Norway, Oslo, Norway
| | - Rodrigo Jover
- Unidad de Gastroenterologia, Hospital General Universitario de Alicante, Alicante, Spain
| | - Stepan Suchanek
- Department of Internal Medicine, Military University Hospital, Prague, Czech Republic
| | - Monika Ferlitsch
- Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - John Anderson
- Gloucestershire Hospitals NHS Foundation Trust, Cheltenham General Hospital, Cheltenham, UK
| | - Thomas Roesch
- Department of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Rolf Hultcranz
- Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
| | - Istvan Racz
- Department of Internal Medicine and Gastroenterology, Petz Aladar County and Teaching Hospital, Györ, Hungary
| | - Ernst J Kuipers
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Kjetil Garborg
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
| | - James E East
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Maciej Rupinski
- Department of Gastroenterology, Hepatology and Oncology, Medical Center for Postgraduate Education, Warsaw, Poland
- Departments of Gastroenterological Oncology and Cancer Prevention, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Birgitte Seip
- Department of Gastroenterology, Vestfold Hospital Trust, Tønsberg, Norway
| | - Cathy Bennett
- Centre for Technology Enabled Research, Coventry University, Coventry, UK
| | - Carlo Senore
- CPO Piemonte, AOU Città della Salute e della Scienza, Turin, Italy
| | - Silvia Minozzi
- CPO Piemonte, AOU Città della Salute e della Scienza, Turin, Italy
| | - Raf Bisschops
- Department of Gastroenterology and Hepatology, University Hospital Leuven and KU Leuven, Leuven, Belgium
| | - Dirk Domagk
- Department of Internal Medicine, Joseph’s Hospital, Warendorf, Germany
| | - Roland Valori
- Department of Gastroenterology, Gloucestershire Hospitals NHS Foundation Trust, Gloucestershire, UK
| | - Cristiano Spada
- Digestive Endoscopy Unit, Agostino Gemelli University Hospital, Rome, Italy
| | | | - Mario Dinis-Ribeiro
- Center for Health Technology and Services Research (CINTESIS), University of Porto, Porto, Portugal
- Servicio de Gastroenterologia, Instituto Portugues de Oncologia Francisco Gentil, Porto, Portugal
| | - Matthew D Rutter
- Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK
- School of Medicine, Durham University, Durham, UK
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Rees CJ, Bevan R, Zimmermann-Fraedrich K, Rutter MD, Rex D, Dekker E, Ponchon T, Bretthauer M, Regula J, Saunders B, Hassan C, Bourke MJ, Rösch T. Expert opinions and scientific evidence for colonoscopy key performance indicators. Gut 2016; 65:2045-2060. [PMID: 27802153 PMCID: PMC5136701 DOI: 10.1136/gutjnl-2016-312043] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 09/08/2016] [Accepted: 09/11/2016] [Indexed: 12/12/2022]
Abstract
Colonoscopy is a widely performed procedure with procedural volumes increasing annually throughout the world. Many procedures are now performed as part of colorectal cancer screening programmes. Colonoscopy should be of high quality and measures of this quality should be evidence based. New UK key performance indicators and quality assurance standards have been developed by a working group with consensus agreement on each standard reached. This paper reviews the scientific basis for each of the quality measures published in the UK standards.
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Affiliation(s)
- Colin J Rees
- Department of Gastroenterology, South Tyneside District Hospital, South Shields, UK
| | - Roisin Bevan
- Department of Gastroenterology, North Tees University Hospital, Stockton-on-Tees, UK
| | | | - Matthew D Rutter
- Department of Gastroenterology, North Tees University Hospital, Stockton-on-Tees, UK
| | - Douglas Rex
- Department of Gastroenterology, Indiana University, Indianapolis, USA
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Thierry Ponchon
- Department of Gastroenterology and Hepatology, Edouard Herriot Hospital, Lyon University, Lyon, France
| | - Michael Bretthauer
- Department of Health Management and Health Economics and KG Jebsen Center for Colorectal Cancer Research, University of Oslo, Oslo, Norway
| | - Jaroslaw Regula
- Department of Gastroenterology, Medical Center for Postgraduate Education and the Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Brian Saunders
- Department of Gastroenterology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - Cesare Hassan
- Digestive Endoscopy Unit, Catholic University, Rome, Italy
| | - Michael J Bourke
- Department of Gastroenterology, Westmead Hospital, Sydney, Australia
| | - Thomas Rösch
- Department of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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Abstract
Colorectal cancer is one of the most common causes of cancer and cancer morbidity in the United States. In comparison to colon polyps, rectal polyps pose a unique challenge. Advances in endoscopic techniques have allowed for more thorough rectal adenoma detection and removal; however, there remains a concern over piecemeal resection and negative resection margins. Advances in transanal excision techniques, such as transanal endoscopic microsurgery, have been proposed for the removal of benign polyps as well as some early stage rectal cancers, with emphasis on proper patient selection. This review will discuss the current endoscopic and surgical considerations of both benign and malignant rectal polyps.
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Affiliation(s)
- Michelle L Cowan
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Matthew L Silviera
- Section of Colon and Rectal Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
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Ngamruengphong S, Pohl H, Haito-Chavez Y, Khashab MA. Update on Difficult Polypectomy Techniques. Curr Gastroenterol Rep 2016; 18:3. [PMID: 26714965 DOI: 10.1007/s11894-015-0476-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Endoscopists often encounter colon polyps that are technically difficult to resect. These lesions traditionally were managed surgically, with significant potential morbidity and mortality. Recent advances in endoscopic techniques and instruments have allowed endoscopists to safely and effectively remove colorectal lesions with high technical and clinical success and potentially avoid invasive surgery. Endoscopic mucosal resection (EMR) has gained acceptance as the first-line therapy for large colorectal lesions. Endoscopic submucosal dissection (ESD) has been reported to be associated with higher rate of en bloc resection and less risk of short-time recurrence, but with an increased risk of adverse events. Therefore, the role of colorectal ESD should be restricted to lesions with high-risk morphologic features of submucosal invasion. In this article, we review the recent literature on the endoscopic management of difficult colorectal neoplasms.
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Affiliation(s)
- Saowanee Ngamruengphong
- Division of Gastroenterology and Hepatology, Department of Medicine, The Johns Hopkins Medical Institutions, 1800 Orleans Street, Zayed Bldg, Suite 7125B, Baltimore, MD, 21287, USA
| | - Heiko Pohl
- Department of Gastroenterology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA.,Department of Gastroenterology, VA Medical Center White River Junction, White River Junction, VT, USA
| | - Yamile Haito-Chavez
- Division of Gastroenterology and Hepatology, Department of Medicine, The Johns Hopkins Medical Institutions, 1800 Orleans Street, Zayed Bldg, Suite 7125B, Baltimore, MD, 21287, USA
| | - Mouen A Khashab
- Division of Gastroenterology and Hepatology, Department of Medicine, The Johns Hopkins Medical Institutions, 1800 Orleans Street, Zayed Bldg, Suite 7125B, Baltimore, MD, 21287, USA.
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Keswani RN, Law R, Ciolino JD, Lo AA, Gluskin AB, Bentrem DJ, Komanduri S, Pacheco JA, Grande D, Thompson WK. Adverse events after surgery for nonmalignant colon polyps are common and associated with increased length of stay and costs. Gastrointest Endosc 2016; 84:296-303.e1. [PMID: 26828760 DOI: 10.1016/j.gie.2016.01.048] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 01/19/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Endoscopic resection (ER) is a safe and effective treatment for nonmalignant complex colorectal polyps (complex polyps). Surgical resection (SR) remains prevalent despite limited outcomes data. We aimed to evaluate SR outcomes for complex polyps and compare SR outcomes to those of ER. METHODS We performed a single-center, retrospective, cohort study of all patients undergoing SR (2003-2013) and ER (2011-2013) for complex polyps. We excluded patients with invasive carcinoma from the SR cohort. Primary outcomes were 12-month adverse event (AE) rate, length of stay (LOS), and costs. SR outcomes over a 3-year period (2011-2013) were compared with the overlapping ER cohort. RESULTS Over the 11-year period, 359 patients (mean [± SD] age 64 ± 11 years) underwent SR (58% laparoscopic) for complex polyps. In total, 17% experienced an AE, and 3% required additional surgery; 12-month mortality was 1%. Including readmissions, median LOS was 5 days (IQR 4-7 days), and costs were $14,528. When an AE occurred, costs ($25,557 vs $14,029; P < .0001) and LOS (11 vs 5 days; P < .0001) significantly increased. From 2011 to 2013, 198 patients were referred for ER, and 73 underwent primary SR (70% laparoscopic). There was a lower AE rate for ER versus primary SR (10% vs 18%; P = .09). ER costs (including rescue SR, when required) were lower than those of primary SR ($2152 vs $15,264; P < .0001). CONCLUSIONS AEs occur in approximately one-sixth of patients after SR for complex polyps. ER-accounting for rescue SR caused by malignancy, AEs, or incomplete resection-is associated with markedly lower costs than SR. These data should be used when counseling patients about treatment options for complex polyps.
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Affiliation(s)
- Rajesh N Keswani
- Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ryan Law
- Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jody D Ciolino
- Departments of Medicine and Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amy A Lo
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Adam B Gluskin
- Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - David J Bentrem
- Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sri Komanduri
- Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jennifer A Pacheco
- Departments of Medicine and Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - David Grande
- Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - William K Thompson
- Departments of Medicine and Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Raju GS, Lum PJ, Ross WA, Thirumurthi S, Miller E, Lynch PM, Lee JH, Bhutani MS, Shafi MA, Weston BR, Pande M, Bresalier RS, Rashid A, Mishra L, Davila ML, Stroehlein JR. Outcome of EMR as an alternative to surgery in patients with complex colon polyps. Gastrointest Endosc 2016; 84:315-25. [PMID: 26859866 PMCID: PMC4949087 DOI: 10.1016/j.gie.2016.01.067] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 01/27/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Patients with complex colon polyps were traditionally referred for surgery to avoid adverse events associated with endoscopic resection. Recent advances in endoscopic imaging as well as endoscopic hemostasis and clip closure allow for the use of EMR as an alternative to surgery for such lesions. To determine the outcome of treatment of complex colon polyps with EMR as an alternative to surgery, we conducted a retrospective observational study. METHODS Two hundred three patients with complex colon polyps were referred to an EMR center as an alternative to surgery. Patients underwent a protocol-driven EMR. The primary endpoint was the complete resection rate. Secondary endpoints were safety, residual adenoma rate, and incidence of missed synchronous polyps. RESULTS EMR was performed in 155 patients and was deferred in 48 patients who were referred to surgery. EMR specimens revealed benign polyps in 149 and cancer in 6 patients. EMR adverse events occurred in 7 patients, requiring hospitalization in 5 of them. None of the patients died as a result of their adverse events. Surveillance colonoscopy at 4 to 6 months after resection of a benign lesion in 137 patients revealed residual adenoma at the scar site in 6 patients and additional synchronous precancerous lesions in 117 patients that were not removed by the referring endoscopist. None underwent surgery for failure of EMR. The overall precancerous lesion burden was 2.83 per patient, the adenoma burden was 2.13 per patient, and the serrated polyp burden was .69 per patient. CONCLUSIONS EMR can be used instead of surgery for complex colon polyps in 75% of patients with few adverse events and few residual adenomas at resection sites. In addition, careful repeat examination of the entire colon for synchronous lesions overlooked by the referring endoscopist is required for most patients. ( CLINICAL TRIAL REGISTRATION NUMBER NCT01827241.).
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Affiliation(s)
- Gottumukkala S Raju
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Phillip J Lum
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - William A Ross
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Selvi Thirumurthi
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ethan Miller
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Patrick M Lynch
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jeffrey H Lee
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Manoop S Bhutani
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mehnaz A Shafi
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Brian R Weston
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mala Pande
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert S Bresalier
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Asif Rashid
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Lopa Mishra
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Marta L Davila
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - John R Stroehlein
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Kaz AM, Anwar A, O'Neill DR, Dominitz JA. Use of a novel polyp "ruler snare" improves estimation of colon polyp size. Gastrointest Endosc 2016; 83:812-6. [PMID: 26382052 DOI: 10.1016/j.gie.2015.08.082] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 08/26/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Prior studies have demonstrated that endoscopists' estimates of polyp size are imprecise. The aim of this study was to determine whether a modified polypectomy "ruler snare" improves the accuracy of assessment of polyp size in real time without the use of additional devices. METHODS Ten artificial polyps of predetermined sizes (4 to 25 mm) were affixed to the inside of a colon model. A standard polypectomy snare was modified by adding 5-mm graduated markings to the distal end of the plastic sheath. Study participants estimated the sizes of the artificial polyps during simulated colonoscopies, first using a standard snare and then with the modified ruler snare. RESULTS Thirty-four private practice and academic gastroenterologists participated in the study. Endoscopists' ability to accurately classify polyps by size (diminutive, small, or large) improved from 48.5% to 60.3% with the ruler snare (P = .002). The greatest improvement in precision was seen among the large polyps, where accuracy increased from 35.9% to 58.2% with use of the ruler snare (P < .0001). Participants underestimated polyp size by a mean of 3.6 mm (interquartile range, -5 to -2 mm) with the standard snare and 1.8 mm (interquartile range, -3 to 0 mm) with the ruler snare, which corresponded to a 44.2% improvement in accuracy with the ruler snare (P < .05). CONCLUSIONS The modified ruler snare improved polyp size assessment compared with a standard snare, particularly with large polyps. Overall, although size estimation continues to be imprecise, the addition of calibrated markings to a polypectomy snare is a simple and likely low-cost means to improve neoplasia surveillance recommendations.
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Affiliation(s)
- Andrew M Kaz
- Gastroenterology Section, VA Puget Sound Health Care System, Seattle, Washington, USA; Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Asma Anwar
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | | | - Jason A Dominitz
- Gastroenterology Section, VA Puget Sound Health Care System, Seattle, Washington, USA; Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
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Huang ZH, Song Z, Zhang P, Wu J, Huang Y. Clinical features, endoscopic polypectomy and STK11 gene mutation in a nine-month-old Peutz-Jeghers syndrome Chinese infant. World J Gastroenterol 2016; 22:3261-3267. [PMID: 27004004 PMCID: PMC4790002 DOI: 10.3748/wjg.v22.i11.3261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 11/01/2015] [Accepted: 12/08/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate multiple polyps in a Chinese Peutz-Jeghers syndrome (PJS) infant.
METHODS: A nine-month-old PJS infant was admitted to our hospital for recurrent prolapsed rectal polyps for one month. The clinical characteristics, a colonoscopic image, the pathological characteristics of the polyps and X-ray images of the intestinal perforation were obtained. Serine threonine-protein kinase 11 (STK11) gene analysis was also performed using a DNA sample from this infant.
RESULTS: Here we describe the youngest known Chinese infant with PJS. Five polyps, including a giant polyp of approximately 4 cm × 2 cm in size, were removed from the infant’s intestine. Laparotomy was performed to repair a perforation caused by pneumoperitoneum. The pathological results showed that this child had PJS. Molecular analysis of the STK11 gene further revealed a novel frameshift mutation (c.64_65het_delAT) in exon 1 in this PJS infant.
CONCLUSION: The appropriate treatment method for multiple polyps in an infant must be carefully considered. Our results also show that the STK11 gene mutation is the primary cause of PJS.
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Abstract
Colonoscopy is an important and frequently performed procedure. It is effective in the prevention of colorectal cancer and is an important test in the investigation of many gastrointestinal symptoms. This review focuses on developments over the last 5 years that have led to changes in aspects of colonoscopy, including patient preparation, technical factors, therapeutic procedures, safety, and quality.
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Affiliation(s)
- Thomas J.W. Lee
- North Tyneside General Hospital, North Shields, UK
- Northern Region Endoscopy Group, North Shields, UK
| | - Shelley Nair
- North Tyneside General Hospital, North Shields, UK
| | | | - Matthew D. Rutter
- Northern Region Endoscopy Group, North Shields, UK
- University Hospital of North Tees, Stockton on Tees, UK
- School of Medicine, Pharmacy and Health, Durham University, Stockton-on-Tees, UK
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How to deal with large colorectal polyps: snare, endoscopic mucosal resection, and endoscopic submucosal dissection; resect or refer? Curr Opin Gastroenterol 2016; 32:26-31. [PMID: 26627920 DOI: 10.1097/mog.0000000000000228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW The importance of accurate polyp detection and removal is paramount to preventing colon cancer. Resection of large polyps can be challenging to the endoscopist based on their size, shape, or location. Large polyps have the potential of harboring malignancy and a higher risk of complications with resection. Careful assessment of each lesion and meticulous resection using the appropriate tools and techniques is essential. RECENT FINDINGS Over the last 15 years, the development of endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) techniques has presented the endoscopist with the opportunity to manage patients with large and flat lesions thereby avoiding the need for surgery. However, these techniques are complex and require extensive knowledge and skill in the use of various devices to resect a lesion completely and manage bleeding and perforation associated with these procedures. SUMMARY Large colon polyps manifest as either polypoid or nonpolypoid (flat) lesions. Polypoid lesions, especially those with pedicles, are removed with snare resection, whereas flat lesions may require the use of EMR or ESD. Resection of large polyps (>1 cm) requires additional tools and techniques to ensure safe and complete resection. We will discuss our approach to dealing with large colorectal polyps: snare, EMR, and ESD; resect or refer?
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Huang Z, Miao S, Wang L, Zhang P, Wu B, Wu J, Huang Y. Clinical characteristics and STK11 gene mutations in Chinese children with Peutz-Jeghers syndrome. BMC Gastroenterol 2015; 15:166. [PMID: 26607058 PMCID: PMC4659168 DOI: 10.1186/s12876-015-0397-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 11/20/2015] [Indexed: 12/15/2022] Open
Abstract
Background Peutz-Jeghers syndrome (PJS) is a rare autosomal dominant inherited disease characterized by gastrointestinal hamartomatous polyps and mucocutaneous melanin spots. Germline mutation of the serine/threonine kinase 11 (STK11) gene are responsible for PJS. In this study, we investigated the clinical characteristics and molecular basis of the disease in Chinese children with PJS. Methods Thirteen children diagnosed with PJS in our hospital were enrolled in this study from 2011 to 2015, and their clinical data on polyp characteristics, intussusceptions events, family histories, etc. were described. Genomic DNA was extracted from whole-blood samples from each subject, and the entire coding sequence of the STK11 gene was amplified by polymerase chain reaction and analyzed by direct sequencing. Results The median age at the onset of symptoms was 2 years and 4 months. To date, these children have undergone 40 endoscopy screenings, 17 laparotomies and 9 intussusceptions. Polyps were found in the stomach, duodenum, small bowel, colon and rectum, with large polyps found in 7 children. Mutations were found in eleven children, including seven novel mutations (c.481het_dupA, c.943_944het_delCCinsG, c.397het_delG, c.862 + 1G > G/A, c.348_349het_delGT, and c.803_804het_delGGinsC and c.121_139de l19insTT) and four previously reported mutations (c.658C > C/T, c.890G > G/A, c.1062 C > C/G, and c.290 + 1G > G/A). One PJS patient did not have any STK11 mutations. Conclusions The polyps caused significant clinical consequences in children with PJS, and mutations of the STK11 gene are generally the cause of PJS in Chinese children. This study expands the spectrum of known STK11 gene mutations.
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Affiliation(s)
- Zhiheng Huang
- Department of Gastroenterology, Children's Hospital of Fudan University, No. 399 WanYuan Road, Shanghai, 201102, China.
| | - Shijian Miao
- Department of Gastroenterology, Children's Hospital of Fudan University, No. 399 WanYuan Road, Shanghai, 201102, China.
| | - Lin Wang
- Department of Gastroenterology, Children's Hospital of Fudan University, No. 399 WanYuan Road, Shanghai, 201102, China.
| | - Ping Zhang
- The Molecular Genetic Diagnosis Center, Shanghai Key Lab of Birth Defects, Translational Medicine Research Center of Children's Development and Disease, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, 201102, China.
| | - Bingbing Wu
- The Molecular Genetic Diagnosis Center, Shanghai Key Lab of Birth Defects, Translational Medicine Research Center of Children's Development and Disease, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, 201102, China.
| | - Jie Wu
- Department of Gastroenterology, Children's Hospital of Fudan University, No. 399 WanYuan Road, Shanghai, 201102, China.
| | - Ying Huang
- Department of Gastroenterology, Children's Hospital of Fudan University, No. 399 WanYuan Road, Shanghai, 201102, China.
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