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Gomes ILC, de Moura DTH, Ribeiro IB, Marques SB, de Sousa Carlos A, Nunes BCM, Hirsch BS, de Oliveira GHP, Trasolini RP, Bernardo WM, de Moura EGH. Cryotherapy versus radiofrequency ablation in the treatment of dysplastic Barrett's esophagus with or without early esophageal neoplasia: a systematic review and meta-analysis. Clin Endosc 2024; 57:181-190. [PMID: 38229440 PMCID: PMC10984752 DOI: 10.5946/ce.2023.065] [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: 02/27/2023] [Revised: 08/03/2023] [Accepted: 08/26/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND/AIMS Radiofrequency ablation (RFA) is the first-line therapy for dysplastic Barrett's esophagus (BE). Therefore, cryotherapy has emerged as an alternative treatment option. This study aimed to compare the efficacies of these two techniques based on the rates of complete eradication of intestinal metaplasia (CE-IM) and dysplasia (CE-D). Adverse events and recurrence have also been reported. METHODS An electronic search was conducted using the Medline (PubMed), Embase, LILACS, and Google Scholar databases until December 2022. Studies were included comparing cryotherapy and RFA for treating dysplastic BE with or without early esophageal neoplasia. This study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. RESULTS Three retrospective cohort studies involving 627 patients were included. Of these, 399 patients underwent RFA, and 228 were treated with cryotherapy. There was no difference in CE-IM (risk difference [RD], -0.03; 95% confidence interval [CI], -0.25 to 0.19; p=0.78; I2=86%) as well as in CE-D (RD, -0.03; 95% CI, -0.15 to 0.09; p=0.64; I2=70%) between the groups. The absolute number of adverse events was low, and there was no difference in the recurrence rate. CONCLUSION Cryotherapy and RFA were equally effective in treating dysplastic BE, with or without early esophageal neoplasia.
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Affiliation(s)
- Igor Logetto Caetité Gomes
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
| | | | - Igor Braga Ribeiro
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Sérgio Barbosa Marques
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Alexandre de Sousa Carlos
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
| | | | - Bruno Salomão Hirsch
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
| | | | - Roberto Paolo Trasolini
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Wanderley Marques Bernardo
- Gastrointestinal Endoscopy Unit, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
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Spadaccini M, Alfarone L, Chandrasekar VT, Maselli R, Capogreco A, Franchellucci G, Massimi D, Fugazza A, Colombo M, Carrara S, Facciorusso A, Bhandari P, Sharma P, Hassan C, Repici A. What Is "Cold" and What Is "Hot" in Mucosal Ablation for Barrett's Oesophagus-Related Dysplasia: A Practical Guide. Life (Basel) 2023; 13:life13041023. [PMID: 37109552 PMCID: PMC10142767 DOI: 10.3390/life13041023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Over the last two decades, endoscopic eradication therapy has been established as the therapeutic strategy of choice for patients with Barrett's oesophagus-related dysplasia and early oesophageal adenocarcinoma. With a multimodal approach, ablative therapies have been highly effective in achieving remarkable eradication rates of metaplastic epithelium with an acceptable adverse event rate. Among ablative techniques, radiofrequency ablation is currently considered as the first-line option as its efficacy and safety are strongly supported by relevant data. Nevertheless, radiofrequency ablation is costly, and not universally available, or applicable to every situation. Moreover, primary failure and recurrence rates are not negligible. In the last few years, cryotherapy techniques and hybrid argon plasma coagulation have been increasingly assessed as potential novel ablative therapies. Preliminary data have been promising and suggest that they may even have a role as first-line options, alternatively to radiofrequency ablation. The aim of this review is to provide a practical guide for the ablation of Barrett's oesophagus, with emphasis on the different ablative options.
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Affiliation(s)
- Marco Spadaccini
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Ludovico Alfarone
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | | | - Roberta Maselli
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Antonio Capogreco
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Gianluca Franchellucci
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Davide Massimi
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Alessandro Fugazza
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Matteo Colombo
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Silvia Carrara
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Antonio Facciorusso
- Gastroenterology Unit, Department of Surgical and Medical Sciences, University of Foggia, 71122 Foggia, Italy
| | - Pradeep Bhandari
- Department of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth PO6 3LY, UK
| | - Prateek Sharma
- Department of Gastroenterology and Hepatology, Kansas City VA Medical Center, Kansas City, MO 66045, USA
| | - Cesare Hassan
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
| | - Alessandro Repici
- Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
- Digestive Endoscopy Unit, Department of Endoscopy, Humanitas Research Hospital, IRCCS, Via Manzoni 56, 20089 Rozzano, Italy
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Estevinho MM, Pinho R, Silva JC, Correia J, Mesquita P, Freitas T. Hybrid Argon Plasma Coagulation for Barrett's Esophagus and for Colonic Mucosal Resection-A Systematic Review and Meta-Analysis. Biomedicines 2023; 11:biomedicines11041139. [PMID: 37189757 DOI: 10.3390/biomedicines11041139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/24/2023] [Accepted: 04/03/2023] [Indexed: 05/17/2023] Open
Abstract
Hybrid argon plasma coagulation (hAPC) is a novel technique that combines conventional argon plasma coagulation and waterjet submucosal expansion. The aims of this metanalysis were to evaluate the efficacy and safety of hAPC in the setting of Barret's esophagus (BE) ablation and as an adjunct to colonic endoscopic mucosal resection (EMR). Four electronic databases were searched, and the results were analyzed by two independent authors. Random-effects meta-analyses of the proportions of endoscopic and histologic remission (for BE), recurrence, and post-procedure adverse events were performed using R. Studies' reporting quality was also assessed. From the 979 identified records, 13 studies were included (10 regarding BE and three colonic EMR). The pooled percentages of endoscopic and histologic remission after hAPC for BE were 95% (95% confidence interval [CI] 91-99, I2 = 34) and 90% (95%CI 84-95, I2 = 46), respectively, while major adverse events and recurrence were registered in 2% (95%CI 0-5, I2 = 41) and 11% (95%CI 2-27, I2 = 11), respectively. Concerning hAPC-assisted EMR, the pooled percentages of major adverse events and recurrence were 5% (95%CI 2-10, I2 = 0) and 1% (95%CI 0-3, I2 = 40). Evidence suggests that the main advantages of hAPC are the increase in safety in the setting of BE ablation and the reduction of local recurrence after colonic EMR. Trials comparing hAPC with standard strategies are required to support its use for these indications.
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Affiliation(s)
- Maria Manuela Estevinho
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
- Unit of Pharmacology and Therapeutics, Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-450 Porto, Portugal
| | - Rolando Pinho
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
| | - João Carlos Silva
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
| | - João Correia
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
| | - Pedro Mesquita
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
| | - Teresa Freitas
- Department of Gastroenterology, Vila Nova de Gaia Espinho Hospital Center, 4400-129 Vila Nova de Gaia, Portugal
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Chandan S, Bapaye J, Khan SR, Deliwala S, Mohan BP, Ramai D, Dhindsa BS, Goyal H, Kassab LL, Aziz M, Kamal F, Facciorusso A, Adler DG. Safety and efficacy of liquid nitrogen spray cryotherapy in Barrett's neoplasia - a comprehensive review and meta-analysis. Endosc Int Open 2022; 10:E1462-E1473. [PMID: 36397870 PMCID: PMC9666080 DOI: 10.1055/a-1906-4967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/20/2022] [Indexed: 10/17/2022] Open
Abstract
Background and study aims Barrett's esophagus (BE) is a precursor condition to esophageal adenocarcinoma (EAC), resulting in transformation of the squamous epithelium of distal esophagus to columnar-lined epithelium with intestinal metaplasia (IM). Liquid nitrogen spray cryotherapy (LNSC) is a non-contact method of BE eradication and has been used both as primary and salvage therapy. We conducted a systematic review and meta-analysis to assess the safety and efficacy of LNSC. Methods We searched multiple databases from inception through December 2021 to identify studies on use of LNSC for Barrett's neoplasia. Pooled estimates were calculated using random-effects model and results were expressed in terms of pooled proportions with relevant 95 % confidence intervals (CIs) of complete eradication (CE) of dysplasia(D), high grade dysplasia (HGD) and IM. Results Fourteen studies with 707 patients were included in our final analysis. Overall pooled rates of CE-D, CE-HGD and CE-IM were 80.8 % (CI 77.4-83.8; I 2 62), 90.3 % (CI 85.2-93.7; I 2 33) and 55.8 % (CI 51.7-59.8; I 2 73) with follow up ranging from 4.25 months to 69.7 months. In patients with follow up beyond 24 months, the rates of CE-D and CE-IM were 83.6 % (CI 77.6-88.2; I 2 60) and 54.7 % (CI 47.6-61.6; I 2 81). Among LNSC naïve patients with prior history of endoscopic resection, the rates were 79.9 % (CI 73.3-85.2; I 2 50) and 67.1 % (CI 59.5-73.8; I 2 0). Pooled rate of therapeutic failures, defined as lack of response to LNSC therapy, was 23.6 % (CI 19.4-28.3; I 2 73). Post LNSC strictures and perforation pooled rates were 4 % and 0.8 %, respectively, which are similar to those previously reported for RFA. Conclusions Our analysis suggests that liquid nitrogen spray cryotherapy is an acceptable treatment for BE in both ablation naïve and experienced patients.
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Affiliation(s)
- Saurabh Chandan
- Division of Gastroenterology & Hepatology, CHI Creighton University Medical Center, Omaha, Nebraska, United States
| | - Jay Bapaye
- Department of Internal Medicine, Rochester General Hospital, Rochester, New York, New York, United States
| | - Shahab R. Khan
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Smit Deliwala
- Internal Medicine, Hurley Medical Center, Flint, Michigan, United States
| | - Babu P. Mohan
- Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, United States
| | - Daryl Ramai
- Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, United States
| | - Banreet S. Dhindsa
- Division of Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Hemant Goyal
- Department of Gastroenterology, The Wright Center for Graduate Medical Education, Scranton, Pennsylvania, Unites States
| | - Lena L. Kassab
- Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States
| | - Muhammad Aziz
- Division of Gastroenterology and Hepatology, University of Toledo, Toledo, Ohio, United States
| | - Faisal Kamal
- Division of Gastroenterology, University of California-San Francisco, California, United States
| | - Antonio Facciorusso
- Gastroenterology Unit, Department of Surgical and Medical Sciences, University of Foggia, Foggia, Italy
| | - Douglas G. Adler
- Center for Advanced Therapeutic Endoscopy (CATE), Centura Health, Porter Adventist Hospital, Denver, Colorado, United States
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Paiji C, Sedarat A. Endoscopic Management of Esophageal Cancer. Cancers (Basel) 2022; 14:cancers14153583. [PMID: 35892840 PMCID: PMC9329770 DOI: 10.3390/cancers14153583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023] Open
Abstract
Advances in technology and improved understanding of the pathobiology of esophageal cancer have allowed endoscopy to serve a growing role in the management of this disease. Precursor lesions can be detected using enhanced diagnostic modalities and eradicated with ablation therapy. Furthermore, evolution in endoscopic resection has provided larger specimens for improved diagnostic accuracy and offer potential for cure of early esophageal cancer. In patients with advanced esophageal cancer, endoluminal therapy can improve symptom burden and provide therapeutic options for complications such as leaks, perforations, and fistulas. The purpose of this review article is to highlight the role of endoscopy in the diagnosis, treatment, and palliation of esophageal cancer.
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Maione F, Chini A, Maione R, Manigrasso M, Marello A, Cassese G, Gennarelli N, Milone M, De Palma GD. Endoscopic Diagnosis and Management of Barrett's Esophagus with Low-Grade Dysplasia. Diagnostics (Basel) 2022; 12:diagnostics12051295. [PMID: 35626450 PMCID: PMC9141542 DOI: 10.3390/diagnostics12051295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 02/05/2023] Open
Abstract
Barrett’s Esophagus is a common condition associated with chronic gastroesophageal reflux disease. It is well known that it has an association with a higher incidence of esophageal adenocarcinoma, but this neoplastic transformation is first preceded by the onset of low and high-grade dysplasia. The evaluation of low grade dysplastic esophageal mucosa is still controversial; although endoscopic surveillance is preferred, several minimally invasive endoscopic therapeutic approaches are available. Endoscopic mucosal resection and radiofrequency ablation are the most used endoscopic treatments for the eradication of low-grade dysplasia, respectively, for nodular and flat dysplasia. Novel endoscopic treatments are cryotherapy ablation and argon plasma coagulation, that have good rates of eradication with less complications and post-procedural pain.
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Affiliation(s)
- Francesco Maione
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
- Correspondence: (F.M.); (R.M.)
| | - Alessia Chini
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
| | - Rosa Maione
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
- Correspondence: (F.M.); (R.M.)
| | - Michele Manigrasso
- Department of Advanced Biomedical Sciences, University of Naples “Federico II”, 80131 Naples, Italy;
| | - Alessandra Marello
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
| | - Gianluca Cassese
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
| | - Nicola Gennarelli
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
| | - Marco Milone
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
| | - Giovanni Domenico De Palma
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80131 Naples, Italy; (A.C.); (A.M.); (G.C.); (N.G.); (M.M.); (G.D.D.P.)
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Martínez-Domínguez SJ, Lanas Á, Domper-Arnal MJ. Esófago de Barrett, hacia la mejora de la práctica clínica. Med Clin (Barc) 2022; 159:92-100. [DOI: 10.1016/j.medcli.2022.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 02/07/2023]
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Dhaliwal A, Saghir SM, Mashiana HS, Braseth A, Dhindsa BS, Ramai D, Taunk P, Gomez-Esquivel R, Dam A, Klapman J, Adler DG. Endoscopic cryotherapy: Indications, techniques, and outcomes involving the gastrointestinal tract. World J Gastrointest Endosc 2022; 14:17-28. [PMID: 35116096 PMCID: PMC8788170 DOI: 10.4253/wjge.v14.i1.17] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 10/31/2021] [Accepted: 12/25/2021] [Indexed: 02/06/2023] Open
Abstract
Endoscopic cryotherapy is a technique utilized for the ablation of target tissue within the gastrointestinal tract. A cryotherapy system utilizes the endoscopic application of cryogen such as liquid nitrogen, carbon dioxide or liquid nitrous oxide. This leads to disruption of cell membranes, apoptosis, and thrombosis of local blood vessels within the target tissue. Several trials utilizing cryotherapy for Barrett's esophagus (BE) with variable dysplasia, gastric antral vascular ectasia (GAVE), esophageal carcinoma, radiation proctitis, and metastatic esophageal carcinomas have shown safety and efficacy. More recently, liquid nitrogen cryotherapy (cryodilation) was shown to be safe and effective for the treatment of a benign esophageal stricture which was refractory to dilations, steroid injections, and stenting. Moreover, liquid nitrogen cryotherapy is associated with less post procedure pain as compared to radiofrequency ablation in BE with comparable ablation rates. In patients with GAVE, cryotherapy was found to be less tedious as compared to argon plasma coagulation. Adverse events from cryotherapy most commonly include chest pain, esophageal strictures, and bleeding. Gastric perforations did occur as well, but less often. In summary, endoscopic cryotherapy is a promising and growing field, which was first demonstrated in BE, but the use now spans for several other disease processes. Larger randomized controlled trials are needed before its role can be established for these different diseases.
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Affiliation(s)
- Amaninder Dhaliwal
- Division of Gastroenterology and Advanced Endoscopy, McLeod Regional Medical Center, Florence, SC 29501, United States
| | - Syed M Saghir
- Division of Gastroenterology, Creighton University School of Medicine, Omaha, NE 68124, United States
| | - Harmeet S Mashiana
- Division of Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE 68198-2000, United States
| | - Annie Braseth
- Division of Gastroenterology, University of Iowa, Iowa City, IA 52242-1009, United States
| | - Banreet S Dhindsa
- Division of Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE 68198-2000, United States
| | - Daryl Ramai
- Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, UT 84132, United States
| | - Pushpak Taunk
- Division of Gastroenterology, USF Health, Tampa, FL 33612, United States
| | | | - Aamir Dam
- Division of Gastroenterology and Hepatology, Moffitt Cancer Center, Tampa, FL 33612, United States
| | - Jason Klapman
- Gastrointestinal Tumor Program, Moffitt Cancer Center, Tampa, FL 33612, United States
| | - Douglas G Adler
- Center for Advanced Therapeutic Endoscopy, Porter Adventist Hospital, Center Health, Denver, CO 80210, United States
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