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Desai M, Ausk K, Brannan D, Chhabra R, Chan W, Chiorean M, Gross SA, Girotra M, Haber G, Hogan RB, Jacob B, Jonnalagadda S, Iles-Shih L, Kumar N, Law J, Lee L, Lin O, Mizrahi M, Pacheco P, Parasa S, Phan J, Reeves V, Sethi A, Snell D, Underwood J, Venu N, Visrodia K, Wong A, Winn J, Wright CH, Sharma P. Use of a Novel Artificial Intelligence System Leads to the Detection of Significantly Higher Number of Adenomas During Screening and Surveillance Colonoscopy: Results From a Large, Prospective, US Multicenter, Randomized Clinical Trial. Am J Gastroenterol 2024:00000434-990000000-00980. [PMID: 38235741 DOI: 10.14309/ajg.0000000000002664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/14/2023] [Indexed: 01/19/2024]
Abstract
INTRODUCTION Adenoma per colonoscopy (APC) has recently been proposed as a quality measure for colonoscopy. We evaluated the impact of a novel artificial intelligence (AI) system, compared with standard high-definition colonoscopy, for APC measurement. METHODS This was a US-based, multicenter, prospective randomized trial examining a novel AI detection system (EW10-EC02) that enables a real-time colorectal polyp detection enabled with the colonoscope (CAD-EYE). Eligible average-risk subjects (45 years or older) undergoing screening or surveillance colonoscopy were randomized to undergo either CAD-EYE-assisted colonoscopy (CAC) or conventional colonoscopy (CC). Modified intention-to-treat analysis was performed for all patients who completed colonoscopy with the primary outcome of APC. Secondary outcomes included positive predictive value (total number of adenomas divided by total polyps removed) and adenoma detection rate. RESULTS In modified intention-to-treat analysis, of 1,031 subjects (age: 59.1 ± 9.8 years; 49.9% male), 510 underwent CAC vs 523 underwent CC with no significant differences in age, gender, ethnicity, or colonoscopy indication between the 2 groups. CAC led to a significantly higher APC compared with CC: 0.99 ± 1.6 vs 0.85 ± 1.5, P = 0.02, incidence rate ratio 1.17 (1.03-1.33, P = 0.02) with no significant difference in the withdrawal time: 11.28 ± 4.59 minutes vs 10.8 ± 4.81 minutes; P = 0.11 between the 2 groups. Difference in positive predictive value of a polyp being an adenoma among CAC and CC was less than 10% threshold established: 48.6% vs 54%, 95% CI -9.56% to -1.48%. There were no significant differences in adenoma detection rate (46.9% vs 42.8%), advanced adenoma (6.5% vs 6.3%), sessile serrated lesion detection rate (12.9% vs 10.1%), and polyp detection rate (63.9% vs 59.3%) between the 2 groups. There was a higher polyp per colonoscopy with CAC compared with CC: 1.68 ± 2.1 vs 1.33 ± 1.8 (incidence rate ratio 1.27; 1.15-1.4; P < 0.01). DISCUSSION Use of a novel AI detection system showed to a significantly higher number of adenomas per colonoscopy compared with conventional high-definition colonoscopy without any increase in colonoscopy withdrawal time, thus supporting the use of AI-assisted colonoscopy to improve colonoscopy quality ( ClinicalTrials.gov NCT04979962).
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Affiliation(s)
- Madhav Desai
- Department of Gastroenterology, Kansas City VA Medical Center, Kansas City, Missouri, USA
| | - Karlee Ausk
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Donald Brannan
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Rajiv Chhabra
- Department of Gastroenterology, Saint Luke's Hospital of Kansas City, Kansas City, Missouri, USA
| | - Walter Chan
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Michael Chiorean
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Seth A Gross
- Gastroenterology, New York University Langone Health, New York, New York, USA
| | - Mohit Girotra
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Gregory Haber
- Gastroenterology, New York University Langone Health, New York, New York, USA
| | - Reed B Hogan
- GI Associates and Endoscopy Center, Jackson, Mississippi, USA
| | - Bobby Jacob
- Gastroenterology, Largo Medical Center, Largo, Florida, USA
| | - Sreeni Jonnalagadda
- Department of Gastroenterology, Saint Luke's Hospital of Kansas City, Kansas City, Missouri, USA
| | - Lulu Iles-Shih
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Navin Kumar
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Joanna Law
- Gastroenterology, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Linda Lee
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Otto Lin
- Gastroenterology, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Meir Mizrahi
- Gastroenterology, Largo Medical Center, Largo, Florida, USA
| | - Paulo Pacheco
- Gastroenterology, New York University Langone Health, New York, New York, USA
| | - Sravanthi Parasa
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Jennifer Phan
- Departement of Gastroenterology, Keck Medicine University of Southern California, Los Angeles, California, USA
| | - Vonda Reeves
- GI Associates and Endoscopy Center, Jackson, Mississippi, USA
| | - Amrita Sethi
- Department of Gastroenterology, Columbia University Irving Medical Center, New York, New York, USA
| | - David Snell
- Gastroenterology, New York University Langone Health, New York, New York, USA
| | - James Underwood
- GI Associates and Endoscopy Center, Jackson, Mississippi, USA
| | - Nanda Venu
- Gastroenterology, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Kavel Visrodia
- Department of Gastroenterology, Columbia University Irving Medical Center, New York, New York, USA
| | - Alina Wong
- Gastroenterology, Swedish Health and Swedish Medical Center, Seattle, Washington, USA
| | - Jessica Winn
- Department of Gastroenterology, Kansas City VA Medical Center, Kansas City, Missouri, USA
| | | | - Prateek Sharma
- Department of Gastroenterology, Kansas City VA Medical Center, Kansas City, Missouri, USA
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Visrodia K, Jones D, Jennings M, Conway C, Burgos H, Malani J, Ogutu E, Pausawasdi N, Sabbagh L, Leddin D, Kassmeyer B, Lennon RJ, Topazian MD. Assessment of endoscope reprocessing at World Gastroenterology Organisation training centers using adenosine triphosphate testing. Endosc Int Open 2024; 12:E68-E77. [PMID: 38193007 PMCID: PMC10774016 DOI: 10.1055/a-2185-6035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/21/2023] [Indexed: 01/10/2024] Open
Abstract
Background and study aims Adequacy of endoscope disinfection in resource-limited settings is unknown. Adenosine triphosphate (ATP) testing is useful for evaluation of endoscope reprocessing, and ATP <200 relative light units (RLUs) after manual endoscope cleaning has been associated with adequacy of endoscope disinfection. Methods Consecutive endoscopes undergoing reprocessing at five World Gastroenterology Organisation (WGO) training centers underwent ATP testing before and after an on-site educational intervention designed to optimize reprocessing practices. Results A total of 343 reprocessing cycles of 65 endoscopes were studied. Mean endoscope age was 5.3 years (range 1-13 years). Educational interventions, based on direct observation of endoscope reprocessing practices at each site, included refinements in pre-cleaning, manual cleaning, high-level disinfection, and endoscope drying and storage. The percentage of reprocessing cycles with post-manual cleaning ATP ≧200 decreased from 21.4% prior to educational intervention to 14.8% post-intervention ( P =0.11). In multivariable logistic modelling, gastroscopes were significantly less likely (odds ratio [OR] 0.04, 95% confidence interval [CI] 0.01-0.19; P <0.001) than colonoscopes to achieve post-manual cleaning ATP < 200. No other factor (educational intervention, study site, endoscope age) was significantly associated with improved outcomes. Endoscope ID was not significantly associated with ATP values, and sites that performed manual versus automated HLD did not have significantly different likelihood of post-manual cleaning ATP <200 (OR 1.18, 95% CI 0.56-2.50; P =0.67). Conclusions In resource-limited settings, approximately 20% of endoscope reprocessing cycles may result in inadequate disinfection. This was not significantly improved by a comprehensive educational intervention. Alternative approaches to endoscope reprocessing are needed.
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Affiliation(s)
- Kavel Visrodia
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center – New York Presbyterian Hospital, New York, USA
| | - Dianne Jones
- Department of Gastroenterology & Hepatology, Logan Hospital, Queensland, Australia
| | - Melissa Jennings
- Department of Gastroenterology and Hepatology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Catherine Conway
- Gastroenterological Nurses College of Australia, New South Wales, Australia
| | | | - Jioji Malani
- School of Public Health and Primary Care, Fiji National University, Suva, Fiji
| | - Elly Ogutu
- Department of Internal Medicine, University of Nairobi, Nairobi, Kenya, Africa
| | - Nonthalee Pausawasdi
- Siriraj GI Endoscopy Center and Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Luis Sabbagh
- Department of Gastroenterology, Reina Sofia Clinic and Colombia University Clinic, Bogota, Colombia
| | - Desmond Leddin
- Department of Medicine, Dalhousie University, Halifax, Canada
| | - Blake Kassmeyer
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, United States
| | - Ryan J. Lennon
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, United States
| | - Mark D. Topazian
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, United States
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Visrodia K, Dobashi A, Bazerbachi F, Poneros J, Sethi A. Endoscopic Submucosal Dissection Facilitating Techniques Among Non-experts: A Systematic Literature Review. Dig Dis Sci 2023; 68:2561-2584. [PMID: 37024739 DOI: 10.1007/s10620-022-07784-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/30/2022] [Indexed: 04/08/2023]
Abstract
BACKGROUND AND AIMS The dissemination of endoscopic submucosal dissection (ESD) has been limited by its technical complexity and safety profile, particularly among non-experts. Various techniques and devices have facilitated the performance of ESD, but their yield and role in the path to learning ESD remain unclear. METHODS We performed a systematic review by querying MEDLINE, EMBASE, Web of Science, and Japan Medical Abstracts Society specifically for comparative studies investigating the impact of assigned ESD techniques vs. conventional techniques among non-experts in ESD (< 50 ESD procedures). Procedural outcomes of efficacy, efficiency, and safety were assessed. RESULTS We identified 46 studies evaluating 54 cohorts in which a total 237 non-experts performed 2461 ESDs conventionally, and 1953 ESDs using an assigned ESD technique (knives, countertraction, miscellaneous techniques). The majority of studies were from East Asia (67%), single-center (96%), observational in design (61%), in an animal model (57%), and gastric location (63%). The most studied techniques were countertraction techniques (48% cohorts) and scissor knives (15% cohorts), both of which commonly enhanced efficiency of ESD, and less so efficacy or safety. Techniques found to be beneficial in experts were more likely to be beneficial in non-experts (70% concordance) than vice versa (47% concordance). CONCLUSION Based on the currently available literature, countertraction techniques and scissor knives should be considered for early incorporation into ESD training by non-experts. Several aspects of ESD training remain understudied, including techniques in Western non-experts, educational resources, and several commonly cited techniques. These areas should guide future investigation to enhance the pathway to learning ESD.
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Affiliation(s)
- Kavel Visrodia
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, 161 Fort Washington Ave, 8th Fl, Ste 852A, New York, NY, 10032, USA.
| | - Akira Dobashi
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan
| | - Fateh Bazerbachi
- CentraCare, Interventional Endoscopy Program, St Cloud Hospital, St Cloud, MN, USA
| | - John Poneros
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, 161 Fort Washington Ave, 8th Fl, Ste 852A, New York, NY, 10032, USA
| | - Amrita Sethi
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, 161 Fort Washington Ave, 8th Fl, Ste 852A, New York, NY, 10032, USA
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4
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Venkat M, Visrodia K. Management of Adverse Events of Submucosal Endoscopy. Gastrointest Endosc Clin N Am 2023; 33:183-196. [PMID: 36375882 DOI: 10.1016/j.giec.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The risk-benefit profile of submucosal endoscopic procedures is generally favorable but there exist unique considerations regarding the recognition, treatment, and prevention of submucosal endoscopic complications. Bleeding during the procedure can be managed with knife electrocautery, tamponade by injection of additional submucosal agent, or hemostatic forceps, depending on the location and degree of bleeding. Delayed bleeding should be managed with repeat endoscopy. Potential means to reduce the risk of delayed bleeding include anticipatory coagulation of visible vessels in the dissection ulcer base, applied hemostatic chemicals, snares, clips, and sheets of cultured cells.
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Affiliation(s)
- Manu Venkat
- Department of Medicine, Columbia University Irving Medical Center, New York Presbyterian Hospital, 5141 Broadway, New York, NY 10034, USA
| | - Kavel Visrodia
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Center, New York Presbyterian Hospital, Herbert Irving Pavilion, 161 Fort Washington Avenue, 8th Floor, Street 852A, New York, NY 10032, USA.
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Genere JR, Visrodia K, Zakko L, Hoefnagel SJM, Wang KK. Spray cryotherapy versus continued radiofrequency ablation in persistent Barrett's esophagus. Dis Esophagus 2022; 35:6512102. [PMID: 35059707 DOI: 10.1093/dote/doab084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/09/2021] [Indexed: 12/11/2022]
Abstract
Radiofrequency ablation (RFA) is the first-line treatment for flat Barrett's esophagus (BE) with dysplasia, however its role for persistent Barrett's esophagus (PBE) is unclear. PBE requires additional RFA sessions or application of cryotherapy to improve therapeutic response. We performed a retrospective cohort study evaluating cases of PBE treated by endoscopic eradication programs, with and without spray cryotherapy, and evaluated their safety and efficacy. We retrospectively identified patients with PBE, defined as ≤50% BE reduction or unchanged dysplasia after at least two RFA sessions. PBE was treated either by continued RFA (RFA Group) or converting to spray cryotherapy (CRYO Group), both followed by surveillance period. The rate of adverse events (AE), complete response of intestinal metaplasia (CRIM) and complete response of dysplasia (CRD) were recorded. A total of 46 patients, 23 per group, underwent 622 endoscopic therapies. Circumferential BE length was longer in the CRYO Group, but other baseline characteristics were similar, including maximal BE length. Esophageal strictures accounted for 14/16 total AE, 71% of which were RFA related, compared with 14% related to spray cryotherapy (P = 0.02). Overall CRIM/CRD rates in CRYO (83%) and RFA (96%) groups were not statistically different (P = 0.16), however cases in the CRYO Group required more treatment encounters (Median 19 vs. 12, P ≤ 0.01). Multimodal endotherapy is effective for eradicating PBE. Treatment programs incorporating spray cryotherapy are associated with less esophageal strictures but may require more treatment sessions to achieve eradication.
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Affiliation(s)
- Juan Reyes Genere
- Department of Medicine, Division of Gastroenterology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Kavel Visrodia
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY, USA
| | - Liam Zakko
- Connecticut Gastroenterology, Bristol, CT, USA
| | - Sanne J M Hoefnagel
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Kenneth K Wang
- Department of Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic Rochester, Rochester, MN, USA
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Visrodia K, Sawas T, Zakko L, Genere JR, Leggett C, Lutzke L, Wang KK. Scissor-type knife improves the safety of endoscopic submucosal dissection (ESD) among endoscopists without experience in ESD: a randomized ex vivo study. Endosc Int Open 2021; 9:E1207-E1213. [PMID: 34447866 PMCID: PMC8383092 DOI: 10.1055/a-1487-5469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/19/2020] [Indexed: 10/28/2022] Open
Abstract
Background and study aims Endoscopic submucosal dissection (ESD) is technically challenging, difficult to learn, and carries a substantial risk of perforation, all of which remain significant barriers to its adoptability. We aimed to determine whether use of a novel scissor-type knife improved efficacy and safety among novice performers of ESD. Materials and methods Following a brief didactic session on ESD, participants performed ESD of two lesions (2 cm diameter) in an ex vivo porcine gastric model. One resection was performed with a conventional knife and the other with the scissor knife (order of knife randomized). We recorded procedure time, successful en bloc resection, and adverse events (including full-thickness perforation and muscle injury) for each dissection. Participants completed a post-study survey. Results 10 endoscopists (8 trainees, 2 staff) considered novices in ESD participated. Compared with the conventional knife, use of the scissor knife was associated with a significantly shorter time to completion of submucosal dissection (mean 6.2 [SD 5.6] vs. 15.6 [SD 15.6] minutes; P = 0.04) and total procedure time was not significantly different (22.1 [SD 13.3] vs. 24.9 [SD 26.5] minutes; P = 0.65). Scissor knife use was also associated with a significantly lower proportion of perforation and/or muscle injury (10.0 % vs. 70.0 %; P < 0.01) and proportion of muscle injury alone (10.0 % vs. 60.0 %; P = 0.02). Conclusions Among novices performing ESD on an ex vivo animal model, use of a scissor knife was associated with a significantly lower proportion of adverse events without prolonging procedure time. Scissor-type knives may improve ESD safety, at least among novices.
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Affiliation(s)
- Kavel Visrodia
- Digestive and Liver Diseases, Columbia University Medical Center-New York Presbyterian Hospital, New York, New York, United States
| | - Tarek Sawas
- Division of Digestive and Liver Diseases, University of Texas Southwestern, Dallas, Texas, United States
| | - Liam Zakko
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States
| | - Juan Reyes Genere
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Cadman Leggett
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States
| | - Lori Lutzke
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States
| | - Kenneth K. Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States
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Affiliation(s)
- Jorge Perales
- Columbia University Medical Center, New York Presbyterian Hospital, New York, New York
| | - Kavel Visrodia
- Columbia University Medical Center, New York Presbyterian Hospital, New York, New York
| | - Amrita Sethi
- Columbia University Medical Center, New York Presbyterian Hospital, New York, New York
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Visrodia K, Sethi A. A knife plus a snare, but how will it fare? Gastrointest Endosc 2021; 93:679-681. [PMID: 33583523 DOI: 10.1016/j.gie.2020.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Amrita Sethi
- Division of Digestive and Liver Disease, Columbia University Medical Center-NYPH, New York, New York, USA
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Day LW, Kwok K, Visrodia K, Petersen BT. American Society for Gastrointestinal Endoscopy Infection Control Summit: updates, challenges, and the future of infection control in GI endoscopy. Gastrointest Endosc 2021; 93:1-10. [PMID: 32819676 DOI: 10.1016/j.gie.2020.06.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Lukejohn W Day
- Division of Gastroenterology and Hepatology, University of California San Francisco, San Francisco, California, USA
| | - Karl Kwok
- Department of Gastroenterology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, USA
| | - Kavel Visrodia
- Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bret T Petersen
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Abstract
The initial evidence supporting the prone position in non-ventilated awake patients with COVID-19 infection was anecdotal and theoretical. However, several early studies support the potential role of this practice to improve oxygenation, improve clinical outcomes, and reduce the need for intensive care admission. Although there is not a set amount of time that has been proven to be optimal for awake proning, we recommend sessions of 2 to 3 hours for at least a total 4 to 5 hours a day as tolerated based on the existing data and our anecdotal experience. Despite the low-risk and low-cost nature of proning awake patients, there are still logistical concerns that may prevent adequate proning, the most significant of which is patient comfort and compliance.
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Affiliation(s)
- Megha Prasad
- Columbia University Medical Center, Department of Medicine, New York City, NY
| | - Kavel Visrodia
- Massachusetts General Hospital, Department of Medicine, Boston, MA
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Visrodia K, Sethi A. How to Learn and Perform Endoscopic Submucosal Dissection and Full-Thickness Resection in the Colorectum in the United States. Gastrointest Endosc Clin N Am 2019; 29:647-657. [PMID: 31445688 DOI: 10.1016/j.giec.2019.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pioneered in Japan to address the limitations of endoscopic mucosal resection in the stomach, endoscopic submucosal dissection (ESD) has been applied throughout the gastrointestinal tract, including the colorectum. ESD is technically challenging and has been slowly gaining traction in the West. However, for the committed and resourceful endoscopist, proficiency in ESD can still be achieved. Moreover, improvement in techniques and devices are likely to ease the learning curve while improving procedural duration, safety, and efficacy of colorectal ESD. This article reviews challenges and methods in learning ESD in the United States and provides a primer on performing ESD and full-thickness resection in the colorectum.
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Affiliation(s)
- Kavel Visrodia
- Division of Digestive and Liver Disease, Columbia University Medical Center - New York Presbyterian Hospital, 630 West 168th Street, Box 83, P&S3-401, New York, NY 10032, USA
| | - Amrita Sethi
- Division of Digestive and Liver Disease, Columbia University Medical Center - New York Presbyterian Hospital, 630 West 168th Street, Box 83, P&S3-401, New York, NY 10032, USA.
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Hasan A, Visrodia K, Farrell JJ, Gonda TA. Overview and comparison of guidelines for management of pancreatic cystic neoplasms. World J Gastroenterol 2019; 25:4405-4413. [PMID: 31496620 PMCID: PMC6710181 DOI: 10.3748/wjg.v25.i31.4405] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/15/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cysts are identified at an increasing frequency. Although mucinous cystic neoplasms represent a pre-malignant condition, the majority of these lesions do not progress to cancer. Over the last 10 years several societies have established guidelines for the diagnosis, initial evaluation and surveillance of these lesions. Here we provide an overview of five commonly used guidelines: 2015 American Gastroenterological Association, 2017 International Association of Pancreatology, American College of Gastroenterology 2018, European Study Group and American College of Radiology. We describe the similarities and differences between the methods used to formulate these guidelines, the population they target and their approaches towards initial evaluation and surveillance of cystic lesions.
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Affiliation(s)
- Aws Hasan
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY 10032, United States
| | - Kavel Visrodia
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY 10032, United States
| | - James J Farrell
- Division of Digestive Diseases, Department of Medicine, Yale University, New Haven, CT 06520, United States
| | - Tamas A Gonda
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY 10032, United States
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Ramay FH, Vareedayah AA, Visrodia K, Iyer PG, Wang KK, Eluri S, Shaheen NJ, Reddy R, Martin LW, Greenwald BD, Edwards MA. What Constitutes Optimal Management of T1N0 Esophageal Adenocarcinoma? Ann Surg Oncol 2019; 26:714-731. [DOI: 10.1245/s10434-018-07118-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Indexed: 12/27/2022]
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Visrodia K, Petersen BT. Borescope examination: Is there value in visual assessment of endoscope channels? Gastrointest Endosc 2018; 88:620-623. [PMID: 30217239 DOI: 10.1016/j.gie.2018.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 07/11/2018] [Indexed: 02/08/2023]
Affiliation(s)
- Kavel Visrodia
- Division of Digestive and Liver Diseases, Columbia University, New York, New York, USA
| | - Bret T Petersen
- Department of Medicine, Division of Endoscopy, Mayo Clinic, Rochester, Minnesota, USA
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Kamboj AK, Kahn A, Wolfsen HC, Trindade AJ, Ganguly EK, Otaki F, Chan D, Zakko L, Visrodia K, Lutzke L, Wang KK, Leggett CL. Volumetric laser endomicroscopy interpretation and feature analysis in dysplastic Barrett's esophagus. J Gastroenterol Hepatol 2018; 33:1761-1765. [PMID: 29633412 DOI: 10.1111/jgh.14153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 01/28/2018] [Accepted: 03/23/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIM Volumetric laser endomicroscopy (VLE) is used to identify Barrett's esophagus (BE) dysplasia. Selection of a dysplastic region of interest (ROI) can be challenging due to feature variability across a large amount of data. The degree of agreement among VLE users in selecting a ROI has not been studied. METHODS High-definition videos that divided a VLE scan from 18 patients with biopsy-proven BE dysplasia into 1-cm segments were reviewed using a four-quadrant grid superimposed for systematic interpretation. VLE scans were selected based on image quality and appropriate visualization of BE epithelium. Four experienced VLE users rated each quadrant as dysplastic or non-dysplastic. For quadrants rated as dysplastic, reviewers selected a single timeframe with representative features. A high-degree of agreement among reviewers was defined as ≥75% agreement on the quadrant diagnosis and ≥50% agreement on selected timeframe (±2 s). RESULTS Thirty-one videos, each 32 s in length, comprising 124 quadrants were reviewed. There was high-agreement among reviewers in 99 (80%) quadrants, of which 68 (69%) were rated as dysplastic. Compared with quadrants rated as non-dysplastic, ROIs of quadrants rated as dysplastic contained a higher number of epithelial glands (12.7 vs 1.2, P < 0.001) with atypical architecture (54 vs 1, P < 0.001). A statistically significant difference was observed between the signal intensity profiles of quadrants rated as dysplastic and quadrants rated as non-dysplastic (P = 0.004). CONCLUSION This study highlights that experienced VLE users can identify ROIs with high-degree of agreement. Selected ROIs contained VLE features associated with BE dysplasia.
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Affiliation(s)
- Amrit K Kamboj
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Allon Kahn
- Division of Gastroenterology and Hepatology, Mayo Clinic, Scottsdale, Arizona, USA
| | - Herbert C Wolfsen
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Arvind J Trindade
- Division of Gastroenterology, Long Island Jewish Medical Center, Hofstra Northwell School of Medicine, Northwell Health System, New Hyde Park, New York, USA
| | - Eric K Ganguly
- Division of Gastroenterology and Hepatology, University of Vermont, Burlington, Vermont, USA
| | - Fouad Otaki
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel Chan
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Liam Zakko
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kavel Visrodia
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lori Lutzke
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kenneth K Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Cadman L Leggett
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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16
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Krishnamoorthi R, Singh S, Ragunathan K, Visrodia K, Wang KK, Katzka DA, Iyer PG. Factors Associated With Progression of Barrett's Esophagus: A Systematic Review and Meta-analysis. Clin Gastroenterol Hepatol 2018; 16:1046-1055.e8. [PMID: 29199147 DOI: 10.1016/j.cgh.2017.11.044] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 09/21/2017] [Accepted: 11/15/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Endoscopic surveillance of patients with Barrett's esophagus (BE) is inefficient. Risk stratification of patients might improve the effectiveness of surveillance. We performed a systematic review and meta-analysis to identify factors associated with progression of BE without dysplasia or BE with low-grade dysplasia (LGD) to high-grade dysplasia or esophageal adenocarcinoma. METHODS We performed a systematic search of databases through May 2016 to identify cohort studies of patients with baseline BE without dysplasia or BE with LGD that reported predictors of progression. Pooled estimates (odds ratios) of associations of age, sex, smoking, alcohol use, obesity, baseline LGD, segment length, and medication use with progression were calculated. RESULTS We identified 20 studies, reporting 1231 events in 74943 patients. The studies associated BE progression with increasing age (12 studies; odds ratio [OR], 1.03; 95% CI, 1.01-1.05), male sex (11 studies; OR, 2.16; 95% CI, 1.84-2.53), ever smoking (current or past, 8 studies; OR, 1.47; 95% CI, 1.09-1.98), and increasing BE segment length (10 studies; OR, 1.25; 95% CI, 1.16-1.36), with a low degree of heterogeneity. LGD was associated with a 4-fold increase in risk of BE progression (11 studies; OR, 4.25; 95% CI, 2.58-7.0). Use of proton pump inhibitors (4 studies; OR, 0.55; 95% CI, 0.32-0.96) or statins (3 studies; OR, 0.48; 95% CI, 0.31-0.73) were associated with lower risk of BE progression. Alcohol use and obesity did not associate with risk of progression. CONCLUSIONS In a systematic review and meta-analysis, we associated older age, male sex, smoking, longer BE segment, and LGD with risk of progression of BE. Individuals with these features should undergo more intensive surveillance or endoscopic therapy. Smoking is a modifiable risk factor for cancer prevention in patients with BE.
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Affiliation(s)
- Rajesh Krishnamoorthi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Siddharth Singh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Karthik Ragunathan
- Department of Internal Medicine, University of Illinois College of Medicine, Peoria, Illinois
| | - Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Kenneth K Wang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - David A Katzka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Prasad G Iyer
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota.
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17
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Hoversten P, Kamboj AK, Visrodia K, Wu TT, Alexander JA. Lichen planus: a rare cause of a narrowed esophagus. J Gastrointestin Liver Dis 2018; 27:117. [PMID: 29922754 DOI: 10.15403/jgld.2014.1121.272.lch] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
| | - Amrit K Kamboj
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Kavel Visrodia
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Tsung-Teh Wu
- Division of Anatomic Pathology, Mayo Clinic, Rochester, MN, USA
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18
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Visrodia K, Zakko L, Nolte T, Wang KK. Response. Gastrointest Endosc 2018; 87:1595. [PMID: 29759166 DOI: 10.1016/j.gie.2018.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 02/13/2018] [Indexed: 02/08/2023]
Affiliation(s)
- Kavel Visrodia
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Liam Zakko
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Theresa Nolte
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kenneth K Wang
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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19
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Visrodia K, Zakko L, Singh S, Leggett CL, Iyer PG, Wang KK. Cryotherapy for persistent Barrett's esophagus after radiofrequency ablation: a systematic review and meta-analysis. Gastrointest Endosc 2018; 87:1396-1404.e1. [PMID: 29476849 PMCID: PMC6557401 DOI: 10.1016/j.gie.2018.02.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 02/11/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS A small but significant proportion of patients with Barrett's esophagus (BE) have persistent dysplasia or intestinal metaplasia (IM) after treatment with radiofrequency ablation (RFA). Cryotherapy is a cold-based ablative modality that is increasingly being used in this setting. We aimed to better understand the efficacy of second-line cryotherapy in patients with BE who have persistent dysplasia or IM after RFA by conducting a systematic review and meta-analysis. METHODS We performed a systematic literature search of Pubmed, EMBASE, and Web of Science through September 1, 2017. Articles were included for meta-analysis based on the following inclusion criteria: ≥5 patients with BE treated with RFA had persistent dysplasia or IM; they subsequently underwent ≥1 session of cryotherapy with follow-up endoscopy; the proportions of patients achieving complete eradication of dysplasia (CE-D) and/or IM (CE-IM) were reported. The main outcomes were pooled proportions of CE-D and CE-IM by using a random effects model. RESULTS Eleven studies making up 148 patients with BE treated with cryotherapy for persistent dysplasia or IM after RFA were included. The pooled proportion of CE-D was 76.0% (95% confidence interval [CI] 57.7-88.0), with substantial heterogeneity (I2 = 62%). The pooled proportion of CE-IM was 45.9% (95% CI, 32.0-60.5) with moderate heterogeneity (I2 = 57%). Multiple preplanned subgroup analyses did not sufficiently explain the heterogeneity. Adverse effects were reported in 6.7% of patients. CONCLUSION Cryotherapy successfully achieved CE-D in three fourths and CE-IM in half of patients with BE who did not respond to initial RFA. Considering its favorable safety profile, cryotherapy may be a viable second-line option for this therapeutically challenging cohort of patients with BE, but higher-quality studies validating this remain warranted.
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Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department
of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Liam Zakko
- Division of Gastroenterology and Hepatology, Department
of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Siddharth Singh
- Division of Gastroenterology, University of California
San Diego, La Jolla, California
| | - Cadman L. Leggett
- Division of Gastroenterology and Hepatology, Department
of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Prasad G. Iyer
- Division of Gastroenterology and Hepatology, Department
of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Kenneth K. Wang
- Division of Gastroenterology and Hepatology, Department
of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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20
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Visrodia K, Haseeb A, Hanada Y, Pennington KM, Clemens M, Pearce PJ, Tosh PK, Petersen BT, Topazian MD. Reprocessing of single-use endoscopic variceal band ligation devices: a pilot study. Endoscopy 2017; 49:1202-1208. [PMID: 28753701 DOI: 10.1055/s-0043-115004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Background and study aims The preferred management of bleeding esophageal varices includes endoscopic band ligation. Endoscopic ligation devices (ELDs) are expensive and designed for single use, limiting their uptake in developing countries. We aimed to assess the efficacy of reprocessing ELDs using terminal microbial cultures and adenosine triphosphate (ATP) testing. Materials and methods ELDs were recovered after clinical use and their components (cap, handle, and cord) were subjected to reprocessing. This included manual cleaning, automated high-level disinfection (HLD), and drying with forced air. Using sterile technique, ELD components were sampled for ATP at three stages: before manual cleaning, after manual cleaning, and after HLD. Components were sent to an external laboratory for culturing. Cultures were interpreted as positive upon identification of Gram-negative bacilli. Results A total of 14 clinically used ELDs were studied, and 189 ATP tests and 41 cultures were evaluated. Overall, 95 % (39/41) of components and 86 % (12/14) of ELDs were culture-negative or did not yield Gram-negative bacilli. Two components (5 %; one handle and one cord) harbored Gram-negative bacilli in quantities of 1 CFU per component. There was no apparent correlation between ATP at any juncture of reprocessing and terminal cultures. Conclusions Reprocessing of ELDs is effective, resulting in infrequent and minimal microbial contamination. Microbial culturing can be used to ensure adequacy of ELD reprocessing if pursued. Until reusable ELDs are commercially available, continued efforts to better define the adequacy and long-term effects of reprocessing ELDs are needed.
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Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Abdul Haseeb
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Yuri Hanada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Kelly M Pennington
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Magdalen Clemens
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Paul J Pearce
- Nova Biologicals, Inc., Conroe, Texas, United States
| | - Pritish K Tosh
- Division of Infectious Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Bret T Petersen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Mark D Topazian
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
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21
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Zakko L, Visrodia K, Wang KK, Iyer PG. Editorial: The Effect of Bias on Estimation of Improved Survival After Diagnosis of Barrett's Esophagus. Am J Gastroenterol 2017; 112:1265-1266. [PMID: 28766563 PMCID: PMC5574169 DOI: 10.1038/ajg.2017.185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 05/11/2017] [Indexed: 12/11/2022]
Abstract
Adjustments for lead and length time bias has been used when examining apparent survival advantages from screening procedures. However, these estimates depend on several assumptions and are modeled from malignancies that are fairly common and large cohorts are available. In smaller retrospective cohorts, adjustments themselves may be based on estimates that may not be biological nor statistically accurate, which can lead to divergent results as has been found in several recent studies of screening in Barrett's esophagus. Only a prospective randomized controlled trial can really determine the benefit though this may not feasible.
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Affiliation(s)
- Liam Zakko
- Department of Gastroenterology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kavel Visrodia
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Kenneth K. Wang
- Department of Gastroenterology, Mayo Clinic, Rochester, Minnesota, USA
| | - Prasad G. Iyer
- Department of Gastroenterology, Mayo Clinic, Rochester, Minnesota, USA
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22
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Abstract
In the last decade, radiofrequency ablation in combination with endoscopic mucosal resection has simplified and improved the treatment of Barrett's esophagus. These treatments not only reduced the progression of dysplastic Barrett's esophagus to esophageal adenocarcinoma but also decreased treatment-related complications. More recent data from larger series with extended follow-up periods are emerging to refine expectations in patients treated with radiofrequency ablation. Although most patients achieve eradication of neoplasia and intestinal metaplasia, in the long-term a substantial portion of patients develop recurrent disease. This article provides an updated review of radiofrequency ablation efficacy, complications, and durability.
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Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, 200 First Avenue, Southwest, Rochester, MN 55905, USA
| | - Liam Zakko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, 200 First Avenue, Southwest, Rochester, MN 55905, USA
| | - Kenneth K Wang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, 200 First Avenue, Southwest, Rochester, MN 55905, USA.
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23
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Visrodia K, Abu Dayyeh B, Kane S. Crohn's and a Cough: Connecting the Dots. Gastroenterology 2017; 153:21-22. [PMID: 28579273 DOI: 10.1053/j.gastro.2016.12.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 12/26/2016] [Indexed: 12/02/2022]
Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Barham Abu Dayyeh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Sunanda Kane
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
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Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Bret T Petersen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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25
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Zakko L, Iyer P, Visrodia K, Wang KK. Cytosponge use in risk stratification of Barrett's oesophagus. Lancet Gastroenterol Hepatol 2017; 2:3-4. [DOI: 10.1016/s2468-1253(16)30176-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 11/02/2016] [Indexed: 12/13/2022]
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26
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Visrodia K, Singh S, Krishnamoorthi R, Ahlquist DA, Wang KK, Iyer PG, Katzka DA. Systematic review with meta-analysis: prevalent vs. incident oesophageal adenocarcinoma and high-grade dysplasia in Barrett's oesophagus. Aliment Pharmacol Ther 2016; 44:775-84. [PMID: 27562355 DOI: 10.1111/apt.13783] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 07/20/2016] [Accepted: 08/05/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND The proportion of oesophageal adenocarcinoma that is detected concurrently with initial Barrett's oesophagus diagnosis is not well studied. AIM To compare the proportion of prevalent adenocarcinoma vs. incident adenocarcinoma found during surveillance of Barrett's. METHODS We performed a systematic search of MEDLINE, EMBASE and Web of Science (from their inception to 31 May 2015) for cohort studies in adults with Barrett's (nondysplastic Barrett's ± Barrett's with low-grade dysplasia) with minimum average follow-up of 3 years, and providing numbers of prevalent adenocarcinoma detected (concurrently with Barrett's diagnosis and up to 1 year afterwards) vs. incident adenocarcinoma detected (greater than 1 year after Barrett's diagnosis). Pooled weighted proportions of prevalent and incident adenocarcinoma were calculated, using a random effects model. RESULTS On meta-analysis of 13 studies reporting on 603 adenocarcinomas in 9657 Barrett's patients, 85.1% of adenocarcinomas were classified as prevalent [95% confidence interval (CI), 78.1-90.2%) and 14.9% as incident (95% CI, 9.8-21.9%), with substantial heterogeneity (I(2) = 66%). Among nine studies reporting on 787 high-grade dysplasia and oesophageal adenocarcinomas in 8098 Barrett's patients, the proportion of prevalent high-grade dysplasia-oesophageal adenocarcinoma was similar at 80.5% (95% CI, 68.1-88.8%, I(2) = 87%). These results remained stable across multiple subgroup analyses including study quality, setting, duration of follow-up and presence of baseline dysplasia. CONCLUSIONS In our meta-analysis, four of five patients diagnosed with adenocarcinoma or high-grade dysplasia at index endoscopy or within 1 year of Barrett's follow-up were considered to be prevalent cases. Continued efforts are needed to identify patients with Barrett's before the development of adenocarcinoma.
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Affiliation(s)
- K Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S Singh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA.,Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA.,Division of Biomedical Informatics, University of California San Diego, La Jolla, CA, USA
| | - R Krishnamoorthi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - D A Ahlquist
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - K K Wang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - P G Iyer
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - D A Katzka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA.
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27
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Visrodia K, Singh S, Krishnamoorthi R, Ahlquist DA, Wang KK, Iyer PG, Katzka DA. Magnitude of Missed Esophageal Adenocarcinoma After Barrett's Esophagus Diagnosis: A Systematic Review and Meta-analysis. Gastroenterology 2016; 150:599-607.e7; quiz e14-5. [PMID: 26619962 PMCID: PMC4919075 DOI: 10.1053/j.gastro.2015.11.040] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/08/2015] [Accepted: 11/18/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS A proportion of patients with Barrett's esophagus (BE) are diagnosed with esophageal adenocarcinoma (EAC) within 1 year of an endoscopic examination that produced negative findings. These cases of missed cancers have not been well studied, despite current surveillance strategies for BE. We performed a systematic review and meta-analysis to determine the magnitude of missed EAC in cohorts of patients with BE. METHODS We searched MEDLINE, EMBASE, and Web of Science from their inception to May 31, 2015 to identify cohort studies of adults with BE (baseline nondysplastic BE ± BE with low-grade dysplasia) and at least a 3-year follow-up period, providing data on missed and incident EACs (diagnosed within 1 year and diagnosed more than 1 year after the initial endoscopy in which BE was diagnosed, respectively). The main outcome measure was pooled proportion of missed and incident EACs (of all EACs detected after initial endoscopy) among BE cohorts, using a random effects model. RESULTS In a meta-analysis of 24 studies reporting on 820 missed and incident EACs, 25.3% were classified as missed (95% confidence interval: 16.4%-36.8%) and 74.7% as incident EACs (95% CI: 63.2%-83.6%), although there was substantial heterogeneity among studies (I2 = 74%). When the analysis was restricted to nondysplastic BE cohorts (15 studies), 23.9% of EACs were classified as missed (95% confidence interval: 15.3%-35.4%; I2 = 0%). In a meta-analysis of 10 studies with follow-up periods of ≥5 years (a total of 239 EACs), 22.0% were classified as missed (95% confidence interval: 8.7%-45.5%), with substantial heterogeneity (I2 = 68%). CONCLUSIONS Among adults with nondysplastic BE (or BE with low-grade dysplasia) at their index endoscopy and at least a 3-year follow-up period, 25% of EACs are diagnosed within 1 year after the index endoscopy. Additional resources should be allocated to detect missed EAC.
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Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Siddharth Singh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota,Division of Gastroenterology, University of California-San Diego, La Jolla, California,Division of Biomedical Informatics, University of California-San Diego, La Jolla, California
| | - Rajesh Krishnamoorthi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - David A. Ahlquist
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Kenneth K. Wang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Prasad G. Iyer
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - David A. Katzka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
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28
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Visrodia K, Iyer PG, Schleck CD, Zinsmeister AR, Katzka DA. Yield of Repeat Endoscopy in Barrett's Esophagus with No Dysplasia and Low-Grade Dysplasia: A Population-Based Study. Dig Dis Sci 2016; 61:158-67. [PMID: 25956705 PMCID: PMC4639465 DOI: 10.1007/s10620-015-3697-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 04/29/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND The yield of early repeat endoscopy in patients with Barrett's esophagus (BE) is not well established. AIMS To determine how often early repeat endoscopy detected missed dysplasia or esophageal adenocarcinoma (EAC) in a population-based cohort of patients with BE. Secondary aims were to identify risk factors for missed dysplasia/EAC and compare detection of prevalent versus incident HGD/EAC. METHODS A population-based cohort of BE subjects in Olmsted County, MN, was studied. Patients with initial non-dysplastic BE or low-grade dysplasia (LGD) who underwent repeat endoscopy within 24 months were included. Those with a worse histologic diagnosis on repeat endoscopy were considered to have missed dysplasia/EAC. Baseline characteristics among patients with and without missed dysplasia/EAC were compared. The absolute numbers of asymptomatic prevalent or missed, and incident HGD/EAC in the entire cohort were ascertained. RESULTS Of 488 BE cases, 210 were included for the primary aim of this study. Repeat endoscopy revealed four HGD/EAC (1.9 %) and 16 LGD (8.8 %) for a combined miss rate of 9.5 %. Long-segment BE (LSBE) and lack of PPI use were predictors of missed dysplasia/EAC (P = 0.008), but adherence to biopsy protocol was not. Increased prevalent HGD/EAC (n = 30) rather than incident HGD/EAC (n = 22) was identified during a median 4.8 years of follow-up in this cohort. CONCLUSIONS Dysplasia/EAC is commonly missed at initial BE diagnosis, particularly in patients with LSBE and no PPI use. Efforts should be made to enhance the sensitivity of detecting dysplasia/neoplasia around the time of initial BE diagnosis.
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Affiliation(s)
- Kavel Visrodia
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Prasad G. Iyer
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Cathy D. Schleck
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Alan R. Zinsmeister
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - David A. Katzka
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
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Visrodia K, Shivashankar R, Wang AT. 58-year-old woman with progressive nausea and fatigue. Mayo Clin Proc 2014; 89:1004-8. [PMID: 24996236 DOI: 10.1016/j.mayocp.2013.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/16/2013] [Accepted: 09/23/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Kavel Visrodia
- Resident in Internal Medicine, Mayo School of Graduate Medical Education, Mayo Clinic, Rochester, MN
| | - Raina Shivashankar
- Gastroenterology, Mayo School of Graduate Medical Education, Mayo Clinic, Rochester, MN
| | - Amy T Wang
- Advisor to residents and Consultant in General Internal Medicine, Mayo Clinic, Rochester, MN.
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Ofstead CL, Tosh P, Yellin H, Doyle E, Rocco C, Baron T, Visrodia K, Wetzler H. Persistence of Organic Residue and Viable Microbes on Gastrointestinal Endoscopes Despite Reprocessing in Accordance with Guidelines. Am J Infect Control 2014. [DOI: 10.1016/j.ajic.2014.03.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Visrodia K, Shivashankar R, Oxentenko AS. A young woman with odynophagia, diarrhea, and perineal ulcerations. Crohn's disease, pyoderma gangrenosum, and E coli bacteremia. Gastroenterology 2013; 145:517, 696. [PMID: 23900101 DOI: 10.1053/j.gastro.2013.05.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 04/22/2013] [Accepted: 05/28/2013] [Indexed: 12/02/2022]
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Visrodia K, Buxbaum J. A treacherous impediment to duodenoscopy in a woman with pancreatic cancer. Gastroenterology 2012; 143:543-874. [PMID: 22824038 DOI: 10.1053/j.gastro.2012.03.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Revised: 03/06/2012] [Accepted: 03/13/2012] [Indexed: 12/02/2022]
Affiliation(s)
- Kavel Visrodia
- Division of Gastroenterology and Liver Diseases, the University of Southern California, Keck School of Medicine, Los Angeles, California
| | - James Buxbaum
- Division of Gastroenterology and Liver Diseases, the University of Southern California, Keck School of Medicine, Los Angeles, California
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