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Ikeda H, Ihara E, Takeya K, Mukai K, Onimaru M, Ouchida K, Hata Y, Bai X, Tanaka Y, Sasaki T, Saito F, Eto M, Nakayama J, Oda Y, Nakamura M, Inoue H, Ogawa Y. The interplay between alterations in esophageal microbiota associated with Th17 immune response and impaired LC20 phosphorylation in achalasia. J Gastroenterol 2024:10.1007/s00535-024-02088-w. [PMID: 38472375 DOI: 10.1007/s00535-024-02088-w] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/04/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Achalasia is an esophageal motility disorder with an unknown etiology. We aimed to determine the pathogenesis of achalasia by studying alterations in esophageal smooth muscle contraction and the associated inflammatory response, and evaluate the role of esophageal microbiota in achalasia development. METHODS We analyzed esophageal mucosa and lower esophageal sphincter (LES) samples, obtained from patients with type II achalasia who underwent peroral endoscopic myotomy. Esophageal conditioned media obtained from patients were transferred into the mouse esophagus to determine whether the esophageal intraluminal environment is associated with achalasia. RESULTS Approximately 30% of 20-kDa myosin light chains (LC20) was phosphorylated in LES from the control group under resting and stimulated conditions, whereas less than 10% of LC20 phosphorylation was detected in achalasia under all conditions. The hypophosphorylation of LC20 in achalasia was associated with the downregulation of the myosin phosphatase-inhibitor protein CPI-17. Th17-related cytokines, including IL-17A, IL-17F, IL-22, and IL-23A, were significantly upregulated in achalasia. α-Diversity index of esophageal microbiota and the proportion of several microbes, including Actinomyces and Dialister, increased in achalasia. Actinomyces levels positively correlated with IL-23A levels, whereas Dialister levels were positively associated with IL-17A, IL-17F, and IL-22 levels. Esophageal IL-17F levels increased in mice after oral administration of the conditioned media. CONCLUSIONS In LES of patients with achalasia, hypophosphorylation of LC20, a possible cause of impaired contractility, was associated with CPI-17 downregulation and an increased Th17-related immune response. The esophageal intraluminal environment, represented by the esophageal microbiota, could be associated with the development and exacerbation of achalasia.
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Affiliation(s)
- Hiroko Ikeda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
| | - Eikichi Ihara
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan.
| | - Kosuke Takeya
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Koji Mukai
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kenoki Ouchida
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitaka Hata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
| | - Xiaopeng Bai
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
| | - Yoshimasa Tanaka
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
| | - Taisuke Sasaki
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Fumiyo Saito
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Masumi Eto
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Jiro Nakayama
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka, 812-8582, Japan
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Sumi K, Inoue H, Ando R, Fujiyoshi MRA, Fujiyoshi Y, Tanabe M, Shimamura Y, Onimaru M. Long-term efficacy of antireflux mucosectomy in patients with refractory gastroesophageal reflux disease. Dig Endosc 2024; 36:305-313. [PMID: 37332095 DOI: 10.1111/den.14617] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023]
Abstract
OBJECTIVES Minimally invasive treatments have been applied for gastroesophageal reflux disease (GERD), but the long-term results are controversial. Antireflux mucosectomy (ARMS) is a simple endoscopic procedure that does not require the insertion of a foreign body. We provide the first report on the long-term results of ARMS. METHODS This was a single-center, single-arm trial, prospective study of 88 patients with proton pump inhibitor (PPI)-refractory GERD who underwent ARMS between June 2012 and June 2017. Primary outcomes were the rates of long-term effectiveness and PPI discontinuation. Secondary outcomes were to compare patients' preoperative background characteristics, questionnaire, and multichannel intraluminal impedance and pH monitoring data to examine the predictive factors of ARMS. The clinical course was reviewed, including the need for additional treatment after ARMS. RESULTS Antireflux mucosectomy produced a long-term effect in 68.3% of the patients, and PPI could be discontinued in 42% of patients. There were significant differences in age, intensity of preoperative symptoms, and acid-related indicators. Forty-five percent (27/60) had reflux hypersensitivity and ARMS provided long-term effectiveness in 81% of these patients. There was no significant difference in subjective symptom assessment between those with short-term and long-term efficacy. Additional treatment was administered in 23% (14/60) and scheduled at 1-2 years' follow-up. CONCLUSIONS Antireflux mucosectomy showed long-term efficacy, and many of the cases with short-term effects were able to maintain them. In addition, ARMS is also effective in patients with reflux hypersensitivity, and provides a treatment option that bridges the gap between surgical and medical treatment.
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Affiliation(s)
- Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ryohei Ando
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Mony S, Hu B, Joseph A, Aihara H, Ferri L, Bhatt A, Mehta A, Ting PS, Chen A, Kalra A, Farha J, Onimaru M, He L, Luo Q, Wang AY, Inoue H, Ngamruengphong S. Clinical outcomes of endoscopic submucosal dissection for superficial esophageal neoplasia in close proximity to esophageal varices: a multicenter international experience. Endoscopy 2024; 56:119-124. [PMID: 37611620 DOI: 10.1055/a-2159-2557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
BACKGROUND : There are limited data on the feasibility of endoscopic submucosal dissection (ESD) for superficial esophageal neoplasia (SEN) located at or adjacent to esophageal varices. We aimed to evaluate the outcomes of ESD in these patients. METHODS This multicenter retrospective study included cirrhotic patients with a history of esophageal varices with SEN located at or adjacent to the esophageal varices who underwent ESD. RESULTS 23 patients with SEN (median lesion size 30 mm; 16 squamous cell neoplasia and seven Barrett's esophagus-related neoplasia) were included. The majority were Child-Pugh B (57 %) and had small esophageal varices (87 %). En bloc, R0, and curative resections were achieved in 22 (96 %), 21 (91 %), and 19 (83 %) of patients, respectively. Severe intraprocedural bleeding (n = 1) and delayed bleeding (n = 1) were successfully treated endoscopically. No delayed perforation, hepatic decompensation, or deaths were observed. During a median (interquartile range) follow-up of 36 (22-55) months, one case of local recurrence occurred after noncurative resection. CONCLUSION ESD is feasible and effective for SEN located at or adjacent to esophageal varices in cirrhotic patients. Albeit, the majority of the esophageal varices in our study were small in size, when expertise is available, ESD should be considered as a viable option for such patients.
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Affiliation(s)
- Shruti Mony
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
- Division of Gastroenterology and Hepatology , University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Bing Hu
- Department of Gastroenterology, West China Longquan Hospital, Sichuan University, Sichuan Province, China
| | - Abel Joseph
- Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Hiroyuki Aihara
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lorenzo Ferri
- Department of Surgery, Division of Thoracic Surgery, Montreal General Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Amit Bhatt
- Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Amit Mehta
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Peng-Sheng Ting
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Alex Chen
- Department of Surgery, Division of Thoracic Surgery, Montreal General Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Andrew Kalra
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Jad Farha
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Long He
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi Luo
- Department of Gastroenterology, West China Longquan Hospital, Sichuan University, Sichuan Province, China
| | - Andrew Y Wang
- Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, Virginia, USA
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Saowanee Ngamruengphong
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA
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Shimamura Y, Inoue H, Tanabe M, Ushikubo K, Yamamoto K, Kimoto Y, Nishikawa Y, Ando R, Sumi K, Navarro MJ, Teruel Sanchez-Vegazo C, Peñas B, Parejo S, Martínez Sánchez A, Vazquez-Sequeiros E, Onimaru M, Albillos A, Rodriguez de Santiago E. Clinical outcomes of anti-reflux mucosal ablation for gastroesophageal reflux disease: An international bi-institutional study. J Gastroenterol Hepatol 2024; 39:149-156. [PMID: 37787176 DOI: 10.1111/jgh.16370] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/08/2023] [Accepted: 09/17/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND AND AIM Anti-reflux mucosal ablation (ARMA) is an emerging endoscopic treatment aimed at enhancing the gastroesophageal junction flap valve. This study aimed to evaluate its feasibility, effectiveness, and safety. METHODS Between May 2018 and December 2022, patients with gastroesophageal reflux disease (GERD) symptoms refractory to acid suppression medications or those dependent on such medications were enrolled for ARMA. This retrospective analysis utilized prospectively collected data from an international bi-center study. GERD questionnaire, upper endoscopy, and 24-h pH monitoring were conducted at 2-6 months and 12 months post-ARMA. Clinical success was defined as a > 50% reduction in a validated GERD questionnaire. RESULTS A total of 68 patients underwent ARMA. Definitive GERD was diagnosed in 44 (64.7%) patients, while 24 (35.3%) exhibited reflux hypersensitivity. Clinical success rates at 2-6 months and 1 year post-ARMA were 60% (39/65) and 70% (21/30), respectively. The median GERD-health-related quality of life score significantly improved from 26 to 11 at 2-6 months (P < 0.001). Among the 51 patients (71.8%) who underwent 24-h pH monitoring, the median acid exposure time decreased from 5.3% to 0.7% (P = 0.003), accompanied by a significant reduction in esophagitis rates (P < 0.001). Multivariate analysis did not identify predictors of short-term success. Nine (13.2%) patients experienced transient stenosis requiring balloon dilation. CONCLUSIONS ARMA demonstrates both technical feasibility and reproducibility as a safe procedure that effectively ameliorates GERD symptoms in approximately two-thirds of patients during short-term follow up. Both reflux hypersensitivity and confirmed GERD patients, regardless of their response to acid suppression medication, may be suitable candidates.
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Affiliation(s)
- Yuto Shimamura
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kei Ushikubo
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuki Yamamoto
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshiaki Kimoto
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ryohei Ando
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Marc Julius Navarro
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Carlos Teruel Sanchez-Vegazo
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Beatriz Peñas
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Sofía Parejo
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Alba Martínez Sánchez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Enrique Vazquez-Sequeiros
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Agustín Albillos
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red en el Área temática de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
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Tanaka I, Shimamura Y, Inoue H, Azuma D, Ushikubo K, Yamamoto K, Okada H, Kimoto Y, Nishikawa Y, Owada K, Tanabe M, Onimaru M. Feasibility and safety of per-oral endoscopic septotomy for Killian-Jamieson diverticulum: Case series with video. Dig Endosc 2023. [PMID: 38050351 DOI: 10.1111/den.14738] [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: 08/29/2023] [Accepted: 12/03/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND AND AIMS Killian-Jamieson diverticulum (KJD) is a relatively uncommon variant of pharyngoesophageal diverticula, distinct from the more prevalent Zenker diverticulum. However, literature on endoscopic management of KJD remains limited. This study aimed to elucidate the efficacy and safety of peroral endoscopic septotomy (POES) as a treatment approach for symptomatic KJD. METHODS In this retrospective observational study, we investigated the outcomes of nine consecutive patients who underwent POES for KJD between January 2019 and May 2023. Follow-up data of at least 2 months post-treatment were analyzed. The primary outcome measure was the technical success rate of POES. Secondary outcomes encompassed the clinical success rate, defined as symptomatic improvement 2 months after POES, and the incidence of adverse events. RESULTS All patients presented with dysphagia, with a median symptom duration of 6 months (interquartile range [IQR]: 3-12 months). The median diverticulum size was 32 mm (IQR: 24-42 mm). The median duration of the operation time was 66 min (IQR: 60-109). A 100% technical success rate was achieved, with complete closure of the defect in all cases. There were no adverse events related to this treatment. The median hospitalization duration was 5 days (IQR: 4-6), and the clinical success rate was 88.9%. Follow-up barium esophagograms exhibited significant improvement in the flow of the barium for all patients. CONCLUSIONS Despite the relatively limited case volume, our findings underscore that POES is a safe and efficacious approach for managing symptomatic KJD.
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Affiliation(s)
- Ippei Tanaka
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Daisuke Azuma
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kei Ushikubo
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuki Yamamoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroki Okada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshiaki Kimoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kaori Owada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Inoue H, Yamamoto K, Shimamura Y, Azuma D, Ushikubo K, Okada H, Kimoto Y, Nishikawa Y, Tanaka I, Tanabe M, Onimaru M, Navarro MJ. Pilot study on anti-reflux mucoplasty: Advancing endoscopic anti-reflux therapy for gastroesophageal reflux disease. Dig Endosc 2023. [PMID: 37899073 DOI: 10.1111/den.14711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 08/08/2023] [Accepted: 10/22/2023] [Indexed: 10/31/2023]
Abstract
OBJECTIVES Anti-reflux mucosectomy (ARMS) and anti-reflux mucosal ablation (ARMA) were developed as interventions for proton pump inhibitor (PPI)-refractory/-dependent gastroesophageal reflux disease (GERD). Although ARMS and ARMA are established treatments for PPI-refractory GERD, reliance on natural healing for ulcer scar formation introduces uncertainty and bleeding risk. To address these issues, we introduced a novel approach called anti-reflux mucoplasty (ARM-P), which involves immediate closure of mucosal defects following mucosectomy. This pilot study aims to evaluate the safety, feasibility, and efficacy of ARM-P. METHODS A retrospective single-center study was conducted using prospectively collected data from October 2022 to July 2023. Patients with PPI-refractory/-dependent GERD who underwent ARM-P were included. The study evaluated technical success of ARM-P, before and after ARM-P GERD-Health Related Quality of Life Questionnaire, GerdQ, and Frequency Scale for the Symptoms of GERD scores, along with PPI discontinuation and endoscopic esophagogastric junction morphology. RESULTS A total of 20 patients with a median age of 61.5 years underwent the ARM-P procedure. The procedure achieved 100% technical success without adverse events. After ARM-P, 55.0% discontinued PPI usage and 15.0% reduced PPI dose by half. Median GERD-Health Related Quality of Life Questionnaire score improved from 21 to 6 (P = 0.0026), median GerdQ score improved from 9 to 7 (P = 0.0022), and median Frequency Scale for the Symptoms of GERD score decreased from 16 to 7 (P = 0.0003). Median Hill's Classification significantly improved from grade III to grade I (P = 0.0001). CONCLUSIONS This study presents the first pilot report of ARM-P, demonstrating its procedural safety, technical feasibility, and short-term efficacy.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuki Yamamoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Daisuke Azuma
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kei Ushikubo
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroki Okada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshiaki Kimoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ippei Tanaka
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Marc Julius Navarro
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
- Institute of Digestive and Liver Diseases, St. Luke's Medical Center, Quezon City, Philippines
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Nishikawa Y, Inoue H, Shimamura Y, Navarro MJ, Kawamata N, Azuma D, Ushikubo K, Kimoto Y, Yamamoto K, Fujiyoshi Y, Okada H, Tanaka I, Toshimori A, Tanabe M, Onimaru M. Endoscopic pressure study integrated system for the diagnosis of achalasia. Dig Endosc 2023. [PMID: 37770104 DOI: 10.1111/den.14695] [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: 07/19/2023] [Accepted: 09/27/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVES The endoscopic pressure study integrated system (EPSIS) is a novel diagnostic tool used to evaluate lower esophageal sphincter (LES) function. EPSIS allows the measurement of intragastric pressure (IGP) during gastric insufflation through esophagogastroduodenoscopy (EGD) and records its pressure waveform. This study aimed to assess the usefulness and applicability of EPSIS as an adjunct diagnostic modality for achalasia. METHODS This case-control study was conducted using a database of patients who underwent EGD, barium swallow (BS), high-resolution manometry (HRM), and EPSIS between January 2022 and December 2022. The achalasia (experimental) group (n = 35) consisted of patients with a definitive diagnosis of achalasia. The control group (n = 34) consisted of patients with no abnormalities in EGD, BS, or HRM and no abnormal acid reflux confirmed with 24-h pH-impedance monitoring. EPSIS findings were compared between the two groups and characterized by the waveform pattern (uphill or flat), maximum IGP (IGP-Max), pressure difference, and the gradient of the waveform. RESULTS All patients in the achalasia group showed an uphill pattern, in contrast to 21 patients (61.8%) in the control group. IGP-Max demonstrated the best diagnostic accuracy for achalasia, with a cut-off value of 15.8 mmHg (100% sensitivity, 58.8% specificity, and area under the curve [AUC] 0.78). The pressure gradient also demonstrated good diagnostic accuracy, with a cut-off value of 0.40 mmHg/s (80% sensitivity, 61.8% specificity, and AUC 0.76). CONCLUSION This study demonstrated that EPSIS can be applied as a diagnostic modality in patients with achalasia.
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Affiliation(s)
- Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Marc Julius Navarro
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
- Institute of Digestive and Liver Diseases, St. Luke's Medical Center, Quezon City, Philippines
| | - Natsuki Kawamata
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Daisuke Azuma
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kei Ushikubo
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshiaki Kimoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuki Yamamoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroki Okada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ippei Tanaka
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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8
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Toshimori A, Tanabe M, Shimamura Y, Shiomi D, Ushikubo K, Kishi Y, Kato H, Fukuda M, Shibata Y, Kunita K, Fujiyoshi MRA, Fujiyoshi Y, Nishikawa Y, Sumi K, Ikeda H, Onimaru M, Uragami N, Yokoyama N, Inoue H. Endoscopic carbon dioxide insufflation tolerance test on the anal sphincter for anorectal hypofunction: a pilot and feasibility study. Ann Gastroenterol 2023; 36:437-441. [PMID: 37396011 PMCID: PMC10304521 DOI: 10.20524/aog.2023.0805] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 04/25/2023] [Indexed: 07/04/2023] Open
Abstract
Background Anorectal function deteriorates with age. The diagnostic performance of the endoscopic pressure study integrated system (EPSIS), an endoscopic carbon dioxide (CO2) insufflation stress test of the lower esophageal sphincter has been previously evaluated as a diagnostic tool for gastroesophageal reflux disease. We aimed to evaluate the applicability of EPSIS in improving anorectal function. We hypothesized that EPSIS can be applied to the diagnosis of lower gastrointestinal tract disorders. Methods This was a pilot, single-center, retrospective study using prospectively collected data between December 2021 and March 2022. It was designed to evaluate the differences in EPSIS rectal pressure measurements between older (≥80 years) and younger (<80 years) patients. At the end of the screening colonoscopy, the colonoscope was fixed in a retroflex position. When bowel movement was observed, CO2 was insufflated to the point where gas leakage occurred through the anus. The measured maximum pressure was defined as EPSIS-rectal pressure max (EPSIS-RP max) and compared between the groups. Results Overall, 30 patients were included and examined. The median ages of the <80 and ≥80 years' groups were 53 (range: 27-79) and 82 (range: 80-94) years, respectively, with corresponding median measured EPSIS-RP max of 18.7 (range: 8.5-30.2) and 9.8 (range: 5.4-22.3) mmHg (P<0.001). Conclusions Measurement of maximum rectal pressure illustrates the age-related decline in physiological anorectal function. Future studies should consider a loading test using EPSIS to quantify the decline in anorectal function and use it as a routine tool for screening and adjunctive diagnosis of anorectal hypofunction.
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Affiliation(s)
- Akiko Toshimori
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Daijiro Shiomi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kei Ushikubo
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yumi Kishi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hisaki Kato
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mai Fukuda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuki Shibata
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kosuke Kunita
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yusuke Fujiyoshi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Naoyuki Uragami
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Noboru Yokoyama
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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9
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Ito H, Uragami N, Miyazaki T, Shimamura Y, Ikeda H, Nishikawa Y, Onimaru M, Matsuo K, Isozaki M, Yang W, Issha K, Kimura S, Kawamura M, Yokoyama N, Kushima M, Inoue H. Determination of esophageal squamous cell carcinoma and gastric adenocarcinoma on raw tissue using Raman spectroscopy. World J Gastroenterol 2023; 29:3145-3156. [PMID: 37346148 PMCID: PMC10280800 DOI: 10.3748/wjg.v29.i20.3145] [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] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/10/2023] [Accepted: 04/27/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Cancer detection is a global research focus, and novel, rapid, and label-free techniques are being developed for routine clinical practice. This has led to the development of new tools and techniques from the bench side to routine clinical practice. In this study, we present a method that uses Raman spectroscopy (RS) to detect cancer in unstained formalin-fixed, resected specimens of the esophagus and stomach. Our method can record a clear Raman-scattered light spectrum in these specimens, confirming that the Raman-scattered light spectrum changes because of the histological differences in the mucosal tissue.
AIM To evaluate the use of Raman-scattered light spectrum for detecting endoscop-ically resected specimens of esophageal squamous cell carcinoma (SCC) and gastric adenocarcinoma (AC).
METHODS We created a Raman device that is suitable for observing living tissues, and attempted to acquire Raman-scattered light spectra in endoscopically resected specimens of six esophageal tissues and 12 gastric tissues. We evaluated formalin-fixed tissues using this technique and captured shifts at multiple locations based on feasibility, ranging from six to 19 locations 200 microns apart in the vertical and horizontal directions. Furthermore, a correlation between the obtained Raman scattered light spectra and histopathological diagnosis was performed.
RESULTS We successfully obtained Raman scattered light spectra from all six esophageal and 12 gastric specimens. After data capture, the tissue specimens were sent for histopathological analysis for further processing because RS is a label-free methodology that does not cause tissue destruction or alterations. Based on data analysis of molecular-level substrates, we established cut-off values for the diagnosis of esophageal SCC and gastric AC. By analyzing specific Raman shifts, we developed an algorithm to identify the range of esophageal SCC and gastric AC with an accuracy close to that of histopathological diagnoses.
CONCLUSION Our technique provides qualitative information for real-time morphological diagnosis. However, further in vivo evaluations require an excitation light source with low human toxicity and large amounts of data for validation.
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Affiliation(s)
- Hiroaki Ito
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Naoyuki Uragami
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | | | - Yuto Shimamura
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Yohei Nishikawa
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Kai Matsuo
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Masayuki Isozaki
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - William Yang
- Bay Spec Inc., San Jose, CA 95131, United States
| | - Kenji Issha
- Fuji Technical Research Inc., Yokohama 220-6215, Japan
| | - Satoshi Kimura
- Department of Laboratory Medicine and Central Clinical Laboratory, Showa University Northern Yokohama Hospital, Yokohama 224-8503, Japan
| | - Machiko Kawamura
- Department of Hematology, Saitama Cancer Center, Inamachi 362-0806, Japan
| | - Noboru Yokoyama
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Miki Kushima
- Department of Pathology, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
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10
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Fujiyoshi Y, Inoue H, Fujiyoshi MRA, Rodriguez de Santiago E, Nishikawa Y, Toshimori A, Tanabe M, Shimamura Y, Sumi K, Ono M, Shiwaku H, Ikeda H, Onimaru M. Learning curve for peroral endoscopic myotomy in therapeutic endoscopy experts and nonexperts: Large single-center experience. Dig Endosc 2023; 35:323-331. [PMID: 36097829 DOI: 10.1111/den.14435] [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: 06/19/2022] [Accepted: 09/11/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Reports on learning curve for peroral endoscopic myotomy (POEM) in therapeutic endoscopy nonexperts are limited. We aimed to assess the number of cases required to achieve POEM proficiency for endoscopic submucosal dissection (ESD) experts and nonexperts. METHODS This is a retrospective study at the largest POEM referral center in Japan. POEM between April 2014 and December 2020 were included. Nonexperts and ESD experts were divided by training phases: A, 1-20; B, 21-40; C, 41-60; D, 61-80; and E, 81-100 cases. Primary outcome was operation time, and the phase to reach target time (83 min) was investigated. Secondary outcomes were clinical success rate, adverse events, and post-POEM gastroesophageal reflux disease (GERD). RESULTS Five hundred and sixty-six cases were performed by 14 nonexperts, and 555 cases by 15 ESD experts. As the primary outcome, operation time in nonexperts was: A, 95 (79-115.8); B, 86.5 (71-105); C, 80 (70-100); D, 73 (64.5-100.5); and E, 73.5 (57.8-88.8) min, while in ESD experts: A, 90 (74-128); B, 77 (70-92); and C, 77 (70-93.5) min (median [interquartile range]). Operation time decreased significantly as experience increased in both groups (P < 0.001), and nonexperts required 41-60 cases to achieve proficiency, while experts required 21-40 cases. As secondary outcomes, in nonexperts, clinical success was 96.9-100%, adverse events were 5.0-9.2%, symptomatic GERD was 11.8-26.5%, and proton pump inhibitor (PPI) intake was 11.5-18.7% in each phase. While in experts, clinical success was 96.2-100%, adverse events were 3.0-5.8%, symptomatic GERD was 14.6-22.0%, and PPI intake was 12.6-17.9%. There were no significant differences among training phases. CONCLUSIONS Non-ESD experts require more cases to achieve proficiency in POEM. These results are useful for establishing POEM training programs and institutional implementation of the procedure.
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Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.,Division of Gastroenterology, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mary Raina Angeli Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.,Division of Gastroenterology, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Masashi Ono
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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11
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Nakamura J, Sato H, Onimaru M, Abe H, Shiwaku H, Shiota J, Sato C, Sakae H, Ominami M, Hata Y, Fukuda H, Ogawa R, Tatsuta T, Ikebuchi Y, Yokomichi H, Takuto H, Inoue H. Efficacy of peroral endoscopic myotomy for esophageal motility disorders after gastric surgery: Japan Achalasia Multicenter Study. Dig Endosc 2022; 34:1394-1402. [PMID: 35656635 DOI: 10.1111/den.14369] [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: 04/01/2022] [Accepted: 05/31/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Patients with esophageal motility disorders (EMDs) including achalasia after gastric surgery have not been thoroughly characterized. Furthermore, the efficacy of peroral endoscopic myotomy (POEM) in this population should be clarified. METHODS In this retrospective multicenter study of 3707 patients with EMDs, 31 patients (0.8%) had a history of gastric surgery. Patient characteristics and POEM efficacy were compared between patients with and without previous gastric surgery. RESULTS In patients with EMD after gastric surgery, age at EMD diagnosis was higher (72.0 years), male sex was predominant (90.3%), and the American Society of Anesthesiologists physical status score was higher (≥II, 48.4%). High-resolution manometry (HRM) findings did not reveal significant differences. In patients who underwent gastric surgery, atrophic gastritis was common (80.6%), and gastric cancer was the primary surgical indication (32.3%). Distal gastrectomy was performed in 28 patients (90.3%). POEM was effective (3.3% adverse events; 100% treatment success). The incidence rates of reflux esophagitis (RE) and symptomatic gastroesophageal reflux disease (GERD) were 60.0% and 16.7%, respectively, without significant intergroup differences, and severe RE was not observed in the long-term follow-up. Extended gastric myotomy was a risk factor for RE. CONCLUSION Patients with gastric surgery often present severe disease manifestations; the surgical indication is mainly gastric cancer. HRM findings can be similarly used for diagnosis in patients with and without gastric surgery. POEM maintains safety and efficacy with acceptable RE and symptomatic GERD rates. To prevent RE, extended myotomy should be avoided.
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Affiliation(s)
- Jun Nakamura
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hirofumi Abe
- Department of Gastroenterology, Kobe University Hospital, Hyogo, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Department of Surgery, Tohoku University School of Medicine, Miyagi, Japan
| | - Hiroyuki Sakae
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masaki Ominami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Hata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hisashi Fukuda
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Yuichiro Ikebuchi
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Hikichi Takuto
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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12
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Fujiyoshi Y, Inoue H, Shimamura Y, Fujiyoshi MRA, de Santiago ER, Nishikawa Y, Toshimori A, Tanabe M, Sumi K, Ono M, Iwaya Y, Ikeda H, Onimaru M. Association between endoscopic pressure study integrated system (EPSIS) and high-resolution manometry. Endosc Int Open 2022; 10:E762-E768. [PMID: 35692910 PMCID: PMC9187419 DOI: 10.1055/a-1790-6141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 07/17/2021] [Accepted: 12/21/2021] [Indexed: 11/18/2022] Open
Abstract
Background and study aims The endoscopic pressure study integrated system (EPSIS), a novel diagnostic tool for gastroesophageal reflux disease (GERD), allows evaluation of the anti-reflux barrier using endoscopy by monitoring the intragastric pressure (IGP) during insufflation. In this study, we evaluated the association between EPSIS results and lower esophageal sphincter (LES) function measured by high-resolution manometry (HRM) to elucidate whether EPSIS can evaluate the LES function. Patients and methods A retrospective, single-center study of patients with GERD symptoms who underwent endoscopy, pH-impedance monitoring, EPSIS, and HRM was conducted. The primary outcome was basal LES pressure and the secondary outcomes were end-respiratory LES pressure and integrated relaxation pressure (IRP). As EPSIS parameters, the following were measured: 1) pressure difference (mmHg), the difference between maximum and basal IGP; and 2) pressure gradient (mmHg/s), calculated by dividing pressure difference by the insufflating time. Pressure difference < 4.7 mmHg or pressure gradient < 0.07 mmHg/s was defined as an EPSIS GERD pattern. Results Forty-seven patients (median age: 53 years, 37 female) were analyzed. Pressure difference and pressure gradient significantly correlated with basal LES pressure (ρ = 0.29; P = 0.04 and ρ = 0.29; P = 0.04). Patients with EPSIS GERD pattern showed significantly lower basal LES pressure [13.2 (4.8-26.6) vs 25.3 (10.4-66.7) mmHg, P = 0.002], lower end-respiratory LES pressure [8.5 (1.1-15.9) vs 15.5 (1.9-43.9) mmHg, P = 0.019] and lower IRP [5.9 (1.0-12.0) vs 9.8 (1.3-17.8) mmHg, P = 0.020]. Conclusions This study showed a close association between EPSIS results and LES pressures measured by HRM. This indicates that EPSIS can evaluate the LES function during endoscopy and endorse the role of EPSIS as a diagnostic tool for GERD.
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Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Masashi Ono
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yugo Iwaya
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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13
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Shimamura Y, Fujiyoshi MRA, Fujiyoshi Y, Nishikawa Y, Ono M, Owada K, Ikeda H, Onimaru M, Inoue H. Per-oral endoscopic myotomy as treatment for Killian-Jamieson diverticulum. DEN Open 2022; 2:e27. [PMID: 35310689 PMCID: PMC8828231 DOI: 10.1002/deo2.27] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/06/2021] [Accepted: 05/09/2021] [Indexed: 05/01/2023]
Abstract
Killian-Jamieson diverticulum (KJD) is a rare type of esophageal diverticulum less commonly encountered compared with Zenker's diverticulum (ZD). Endoscopic approach for these diverticula has been rapidly evolving. Currently, a flexible endoscopic septum division is considered the first-line treatment for symptomatic ZD patients, however reported recurrence rates are over 10% according to recent literature. With the advent of submucosal tunneling technique established by per-oral endoscopic myotomy for achalasia, it has been applied to treat ZD named as Zenker's diverticulum per-oral endoscopic myotomy (Z-POEM) as a minimally invasive treatment. Although there are very few reports utilizing submucosal tunneling approach to KJD, we have opted to perform Z-POEM in order to safely perform complete dissection of the muscle septum while maintaining mucosal integration. Due to the difficulty of anatomical location of KJD, we created mucosal incision and subsequent submucosal tunnel directly at the level of the septum as opposed to creating a submucosal tunnel few centimeters proximal to the septum as being previously proposed. We report a case in which this technique was successfully performed with complete resolution of dysphagia without any adverse event. This technique permits to perform complete myotomies without the fear of causing perforation. Although larger cohorts are required to assess its safety and efficacy, Z-POEM to treat KJD seems to be promising.
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Affiliation(s)
- Yuto Shimamura
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | | | - Yusuke Fujiyoshi
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Yohei Nishikawa
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Masashi Ono
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Kaori Owada
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Haruo Ikeda
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Manabu Onimaru
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
| | - Haruhiro Inoue
- Digestive Diseases CenterShowa University Koto Toyosu HospitalTokyoJapan
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14
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Fujiyoshi Y, Inoue H, Shimamura Y, Fujiyoshi MRA, Rodriguez de Santiago E, Nishikawa Y, Toshimori A, Tanabe M, Sumi K, Iwaya Y, Ono M, Izawa S, Ikeda H, Onimaru M. Comparison of scope holding sign on endoscopy and lower esophageal sphincter contraction on high‐resolution manometry: A pilot study. DEN Open 2022; 2:e50. [PMID: 35310738 PMCID: PMC8828180 DOI: 10.1002/deo2.50] [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] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/18/2021] [Accepted: 08/05/2021] [Indexed: 11/30/2022]
Abstract
Objectives Lower esophageal sphincter (LES) plays a key role in gastroesophageal reflux disease (GERD) pathogenesis. In retroflexion and under sufficient insufflation, it can be seen how the lower esophagus grasps the endoscope, which we named scope holding sign (SHS). This study aimed to compare the SHS and LES pressure on high‐resolution manometry (HRM), to elucidate whether the sphincter can be visualized endoscopically. Methods This was a single‐center, prospective pilot study. Patients with symptoms of GERD, who underwent endoscopy and HRM between February 2021 and April 2021, were included. A manometry catheter and an ultra‐slim endoscope were inserted, and the resting LES pressure was measured. The lower esophagus holding (SHS‐positive) and releasing (SHS‐negative) the endoscope and catheter were observed. The LES pressures during SHS‐positive and SHS‐negative were compared. Results Eleven patients (median age: 57 years; eight men) with normal esophageal motility were analyzed. The median LES pressure in SHS‐positive was significantly higher than the resting LES pressure (40.4 [22.9–74.0] vs. 25.9 [2.0–66.7] mm Hg; p = 0.001) and the LES pressure in SHS‐negative (4.6 [1.5–9.3]; p = 0.001). Furthermore, the LES pressure in SHS‐negative was significantly lower than the resting LES pressure (4.6 [1.5–9.3] vs. 25.9 [2.0–66.7] mm Hg; p = 0.005). Conclusions This study demonstrated that the SHS parallels LES pressure, indicating that the sphincter can be observed endoscopically. This may enable us to evaluate LES function during endoscopy in patients with GERD, thus, deserving further evaluation in future studies.
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Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruhiro Inoue
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yuto Shimamura
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | | | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology Hospital Universitario Ramón y Cajal, Universidad de Alcalá Madrid Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS) Madrid Spain
| | - Yohei Nishikawa
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Akiko Toshimori
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Mayo Tanabe
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Kazuya Sumi
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yugo Iwaya
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Masashi Ono
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Shinya Izawa
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruo Ikeda
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Manabu Onimaru
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
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15
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Fujiyoshi MRA, Shimamura Y, Fujiyoshi Y, Ushikubo K, Shibata Y, Nishikawa Y, Ono M, Ikeda H, Onimaru M, Inoue H. Treatment of achalasia with peroral endoscopic myotomy in situs inversus totalis. DEN Open 2022; 2:e49. [PMID: 35310744 PMCID: PMC8828206 DOI: 10.1002/deo2.49] [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] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/13/2021] [Accepted: 08/05/2021] [Indexed: 11/07/2022]
Abstract
Peroral endoscopic myotomy (POEM) has become established as a safe, effective, and versatile minimally invasive endoscopic treatment for achalasia and other esophageal motility disorders. Situs inversus totalis is a rare congenital disorder characterized by a completely reversed position (mirror‐image) of the thoracic and abdominal visceral organs. This case report demonstrated a successful treatment of achalasia in a situs inversus totalis by POEM. Similar to the POEM procedure in a normal patient, it is important to maintain the orientation throughout the submucosal tunneling while keeping in mind the reversed orientation and anatomical landmarks. The submucosal tunnel and myotomy were created by an anterior approach which is in this case located at the reversed axis, at 10 o'clock position. There were no major technical modifications needed to be carried out by the operator. No adverse events were noted. Improvement in the Eckardt Symptom Score as well as the barium esophagogram and high‐resolution manometry findings on 2‐month follow‐up exhibited that although POEM was performed in a reversed orientation, similar effects and outcomes were achieved, indicating a successful procedure in this case. In summary, by keeping in mind the reversed positioning and anatomical landmarks in situs inversus totalis, POEM shows to be a safe, effective, and versatile intervention in treating achalasia in situs inversus totalis without the need for major modifications in the procedural technique.
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Affiliation(s)
| | - Yuto Shimamura
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Kei Ushikubo
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yuki Shibata
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yohei Nishikawa
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Masashi Ono
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruo Ikeda
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Manabu Onimaru
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruhiro Inoue
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
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16
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Fujiyoshi Y, Fujiyoshi MRA, Kimura R, Shinohara H, Nishikawa Y, Shimamura Y, Ikeda H, Onimaru M, Inoue H. Achalasia with esophageal intramural hematoma treated by per‐oral endoscopic myotomy (POEM). DEN Open 2022; 2:e70. [PMID: 35310750 PMCID: PMC8828183 DOI: 10.1002/deo2.70] [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] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/23/2021] [Accepted: 10/03/2021] [Indexed: 11/08/2022]
Abstract
Esophageal intramural hematoma (EIH) is a condition which occurs as a result of hemorrhage within the esophageal wall including the submucosal layer. However, reports of EIH on achalasia patients are quite limited and per‐oral endoscopic myotomy (POEM) for achalasia with EIH has not been reported. This is the first case report that demonstrated a successful treatment of achalasia with EIH by POEM. In achalasia, since there is absence of lower esophageal sphincter relaxation, as barotraumatic pathogenesis, an increase in the intraesophageal pressure may cause EIH. As direct traumatic pathogenesis, the stasis of food may directly injure the esophageal wall resulting in EIH. After confirming the hematoma healed until it became an ulcer, POEM was performed on the posterior axis since the intramural hematoma was located anteriorly. The procedure was completed successfully without any occurrence of adverse events. On 2‐months follow‐up, improvement in dysphagia was noted, and complete epithelialization of the intramural hematoma region was seen on endoscopic examination. On 1‐year follow‐up, patient did not have recurrence of dysphagia and intramural hematoma. In summary, we reported a case of achalasia with EIH, which was treated by POEM. POEM procedure may be effective not only for the improvement of dysphagia but also for a better ulcer healing and prevention of intramural hematoma recurrence.
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Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | | | - Ryusuke Kimura
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Hiroki Shinohara
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yohei Nishikawa
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Yuto Shimamura
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruo Ikeda
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Manabu Onimaru
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
| | - Haruhiro Inoue
- Digestive Diseases Center Showa University Koto Toyosu Hospital Tokyo Japan
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17
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Shimamura Y, Sato H, Onimaru M, Tanaka S, Shiwaku H, Shiota J, Sato C, Ogawa R, Yokomichi H, Inoue H. Per-oral endoscopic myotomy in patients with antithrombotic agents: A large-scale multicenter study in Japan. J Gastroenterol Hepatol 2022; 37:480-488. [PMID: 34655450 DOI: 10.1111/jgh.15708] [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: 07/25/2021] [Revised: 09/29/2021] [Accepted: 10/08/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM The perioperative management and clinical course of per-oral endoscopic myotomy for patients receiving antithrombotic therapy remains unknown. This study aimed to clarify the status of antithrombotic therapy in per-oral endoscopic myotomy and to determine its safety and efficacy. METHODS Patients treated with per-oral endoscopic myotomy from 2010 to 2019 in seven high-volume centers in Japan were retrospectively investigated. The patients' characteristics and antithrombotic agent management were analyzed; clinical outcomes were compared with those without antithrombotic agents. RESULTS Of 2752 patients who underwent per-oral endoscopic myotomy, 120 patients on antithrombotic therapy (mean age 71.0 years, American Society of Anesthesiologists class II-IV [67.5%]) were identified. Antiplatelet, anticoagulant, and a combination of antithrombotic agents were used in 82, 30, and 8 patients, respectively. The perioperative management adhered to the therapeutic endoscopy guidelines published by the Japanese Society of Gastroenterological Endoscopy in most patients (88.3%). A poorer clinical baseline status (American Society of Anesthesiologists class II-IV; 67.0% vs 24.3%) and the sigmoid type (40.7% vs 22.3%) were more frequently observed in patients with achalasia on antithrombotic therapy. However, the clinical success (Eckardt score ≤ 3; 97.6% vs 94.6) and adverse event rates, such as bleeding and thromboembolic events (5.5% vs 4.7%), did not show inferiority. CONCLUSIONS Per-oral endoscopic myotomy on antithrombotic therapy is safe and effective. However, caution is required as patients on antithrombotic therapy tend to have poorer baseline health and achalasia statuses. Our experience should help establish perioperative management with antithrombotic therapy.
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Affiliation(s)
- Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Shinwa Tanaka
- Department of Gastroenterology, Kobe University Hospital, Kobe, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Division of Advanced Surgical Science and Technology, Tohoku University School of Medicine, Sendai, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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18
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Toshimori A, Inoue H, Fujiyoshi MRA, Fujiyoshi Y, Nishikawa Y, Tanabe M, Shimamura Y, Ohwada K, Ono M, Ikeda H, Onimaru M. Novel modified side-by-side balloon dilatation method for esophagogastric junction strictures: Single-/double-barrel techniques. Dig Endosc 2022; 34:641-647. [PMID: 34837409 DOI: 10.1111/den.14205] [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: 06/22/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 02/08/2023]
Abstract
Endoscopic balloon dilatation is an established treatment for benign gastrointestinal strictures. In order to dilatate safely, it is necessary to dilatate gradually and preferably under direct endoscopic visualization. However, it is currently difficult to achieve dilatation widths of 20-30 mm with commercial products and of over 30-mm with endoscopic visualization. Therefore, a safe and innovative application technique is needed for patients who need these 20-mm or greater dilatation widths. We have developed two methods that enable more than 20-mm dilatation under direct visualization. (i) Single-barrel method: an endoscopic balloon dilatation catheter was fixed with grasping forceps at the tip of the endoscope and carried into the stomach. The balloon catheter was released from the endoscope to create a retroflexed view. The endoscope and balloon were positioned adjacent to each other at the gastric cardia. The balloon was inflated gradually and the esophagogastric junction was dilatated under direct visualization. (ii) Double-barrel method: the same procedure was repeated with two balloons. Theoretically, we achieved a dilatation of >30-mm in diameter. These modified methods may be helpful for esophagogastric junction strictures, such as esophageal achalasia (serving as an initial endoscopic balloon dilatation prior to using a 30-mm achalasia balloon), or for functional strictures after Nissen fundoplication. In conclusion, our simple, modified method enables safe and gradual dilatation under direct endoscopic visualization. Additionally, combination of the sizes of one or two balloons can achieve various widths of dilatation.
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Affiliation(s)
- Akiko Toshimori
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yusuke Fujiyoshi
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kaori Ohwada
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Masashi Ono
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Inoue H, Tanabe M, Shimamura Y, Rodriguez de Santiago E, Fujiyoshi Y, Toshimori A, Abad MRA, Nishikawa Y, Nashida K, Sumi K, Ikeda H, Onimaru M, Uragami N. A novel endoscopic purse-string suture technique, "loop 9", for gastrointestinal defect closure: a pilot study. Endoscopy 2022; 54:158-162. [PMID: 33472242 DOI: 10.1055/a-1364-4160] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 12/13/2022]
Abstract
BACKGROUND : This study aimed to assess the feasibility and efficacy of the novel loop 9 method of gastrointestinal (GI) defect closure. METHODS : 20 patients underwent a GI procedure that required defect closure. Loop 9 can be delivered through a single instrument channel (3.2 mm) and released at the defect site. After it has been anchored by two clips positioned on opposite sides of the defect edge, the loop 9 is tightened by pulling the end of the suture intraluminally using biopsy forceps. Additional clips are placed to achieve complete closure. The primary outcome was complete closure rate. The secondary outcomes were closure time, sustained closure rate, and adverse events. RESULTS : Complete closure was achieved in 100 % of cases. The mean size of the mucosal defects was 17.5 mm (range 10-55 mm). The median closure time was 14 minutes. The sustained closure rate was 90 %. No adverse events were noted. CONCLUSIONS : The loop 9 technique is feasible and effective in achieving complete and sustained closure of therapeutic endoscopy-related GI defects.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kosuke Nashida
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Naoyuki Uragami
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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20
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Shimamura Y, Inoue H, Rodriguez de Santiago E, Abad MRA, Fujiyoshi Y, Toshimori A, Tanabe M, Sumi K, Iwaya Y, Ikeda H, Onimaru M, Kushima M, Goda K. Diagnostic yield of fourth-generation endocytoscopy for esophageal squamous lesions using a modified endocytoscopic classification. Dig Endosc 2021; 33:1093-1100. [PMID: 33320375 DOI: 10.1111/den.13914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/25/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Endocytoscopy (EC) is an ultra-high magnification endoscopy designed to provide in vivo histologic assessment. This study aimed to evaluate the diagnostic yield of the newly developed fourth-generation EC for esophageal squamous lesions by using a modified EC classification. METHODS A total of 2548 EC images of 57 esophageal targeted areas between June 2015 and October 2017 were retrospectively collected. Two lesions with low-quality images were excluded. Only EC images were independently reviewed by two expert and two non-expert endoscopists. The lesions were classified according to a three-tier modified EC classification. We used a multilevel logistic regression to analyze the data. RESULTS The sensitivity and specificity of diagnosing non-squamous cell cancer (SCC) vs SCC were 82.5% and 83.0% by the experts; 90.1% and 75.0% by non-experts. The interobserver agreement among the four raters was good (kappa statistic 0.59). The diagnostic accuracy of experts and non-experts was similar (P = 0.16 for specificity and P = 0.20 for sensitivity). The sensitivity and specificity of EC for non-neoplasia vs neoplasia were 88.7% and 74.6% by experts; 90.3 and 52.1% by non-experts. The interobserver agreement among the four raters was moderate (kappa statistic 0.44). The specificity of experts was higher compared to non-experts, although the difference did not reach statistical significance (P = 0.08 for specificity and P = 0.93 for sensitivity). CONCLUSIONS Fourth-generation EC offers acceptable diagnostic accuracy and reliability in both experts and non-experts, especially when diagnosing SCC lesions.
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Affiliation(s)
- Yuto Shimamura
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Enrique Rodriguez de Santiago
- Digestive Disease Center, Showa University Koto, Tokyo, Japan.,Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcala, IRYCIS, Madrid, Spain
| | | | | | - Akiko Toshimori
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Yugo Iwaya
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
| | - Miki Kushima
- Department of Pathology, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kenichi Goda
- Digestive Disease Center, Showa University Koto, Tokyo, Japan
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21
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Inoue H, Fujiyoshi MRA, Toshimori A, Fujiyoshi Y, Shimamura Y, Tanabe M, Nishikawa Y, Mochizuki Y, Sakaguchi T, Kimura R, Izawa S, Ikeda H, Onimaru M, Uragami N. Unified magnifying endoscopic classification for esophageal, gastric and colonic lesions: a feasibility pilot study. Endosc Int Open 2021; 9:E1306-E1314. [PMID: 34466352 PMCID: PMC8367430 DOI: 10.1055/a-1499-6638] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/05/2020] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
Background and study aims Image-enhanced magnifying endoscopy allows optimization of the detection and diagnosis of lesions found in the gastrointestinal tract. Current organ-specific classifications are well-accepted by specialized endoscopists but may pose confusion for general gastroenterologists. To address this, our group proposed the Unified Magnifying Endoscopic Classification (UMEC) which can be applied either in esophagus, stomach, or colon. The aim of this study was to evaluate the diagnostic performance and clinical applicability of UMEC. Patients and methods A single-center, feasibility pilot study was conducted. Two endoscopists with experience in magnifying narrow band imaging (NBI), blinded to white-light and non-magnifying NBI findings as well as histopathological diagnosis, independently reviewed and diagnosed all images based on UMEC. In brief, UMEC is divided into three categories: non-neoplasia, intramucosal neoplasia, and deep submucosal invasive cancer. The diagnostic performance of UMEC was assessed while using the gold standard histopathology as a reference. Results A total of 303 gastrointestinal lesions (88 esophageal squamous lesions, 90 gastric lesions, 125 colonic lesions) were assessed. The overall accuracy for both endoscopists in the diagnosis of esophageal squamous cell cancer, gastric cancer, and colorectal cancer were 84.7 %, 89.5 %, and 83.2 %, respectively. The interobserver agreement for each organ, Kappa statistics of 0.51, 0.73, and 0.63, was good. Conclusions UMEC appears to be a simple and practically acceptable classification, particularly to general gastroenterologists, due to its good diagnostic accuracy, and deserves further evaluation in future studies.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuichiro Mochizuki
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Takuki Sakaguchi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ryusuke Kimura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Shinya Izawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Naoyuki Uragami
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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22
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Kuribayashi S, Akiyama J, Ikeda H, Nagai K, Hosaka H, Hamada M, Onimaru M, Kawami N, Hayashi K, Iwakiri K, Inoue H, Kusano M, Uraoka T. Utility of a new automated diagnostic program in high-resolution esophageal manometry. J Gastroenterol 2021; 56:633-639. [PMID: 33987747 DOI: 10.1007/s00535-021-01794-z] [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: 09/30/2020] [Accepted: 05/04/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND A new automated diagnostic program for high-resolution esophageal manometry (HREM) has been developed. This diagnostic program could detect locations of landmarks and could make final diagnoses automatically. However, the accuracy of the program is not known. The aim of this study was to evaluate the accuracy of the automated diagnostic program for HREM. METHODS A total of 445 studies were enrolled. An HREM system (Starlet®) was used, and esophageal motility was diagnosed using the Chicago classification v3.0. First, the locations of the upper esophageal sphincter, transition zone, lower esophageal sphincter, esophago-gastric junction, crural diaphragm and stomach were determined, and each swallow was checked manually. Then, the parameters of the Chicago classification were calculated using an analytic program of the Starlet, and diagnoses were made by three experts. Second, all study raw data were analyzed again by the automated diagnostic program. Diagnoses made by the program were compared to those made by experts to evaluate the accuracy of the diagnoses. RESULTS The new diagnostic program could identify the landmarks of each swallow, calculate the parameters and make a final diagnosis within 10 s. The diagnoses made by the automated diagnostic program were not matched to those made by experts in only 10 studies, and the overall accuracy of the new automated diagnostic program thus reached 97.8% (435/445). CONCLUSIONS The new automated diagnostic program for HREM is clinically useful in terms of high diagnostic accuracy and time-saving.
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Affiliation(s)
- Shiko Kuribayashi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
| | - Junichi Akiyama
- Division of Gastroenterology and Hepatology, Center Hospital of the National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Kazue Nagai
- Research and Education Center of Health Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Hiroko Hosaka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Mariko Hamada
- Division of Gastroenterology and Hepatology, Center Hospital of the National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Kunihiko Hayashi
- Research and Education Center of Health Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Motoyasu Kusano
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
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23
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Shimamura Y, Inoue H, Rodriguez de Santiago E, Abad MRA, Fujiyoshi Y, Toshimori A, Tanabe M, Sumi K, Iwaya Y, Ikeda H, Onimaru M. Characterization of intragastric pressure waveform in endoscopic pressure study integrated system: Novel diagnostic device for gastroesophageal reflux disease. Dig Endosc 2021; 33:780-787. [PMID: 33037693 DOI: 10.1111/den.13867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/02/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 01/14/2023]
Abstract
OBJECTIVES Endoscopic pressure study integrated system (EPSIS) is a novel diagnostic tool for gastroesophageal reflux disease (GERD). EPSIS has been developed to evaluate lower esophageal sphincter function by monitoring the intragastric pressure (IGP) while insufflating the stomach during gastroscopy. Based on previous data, EPSIS could diagnose GERD with good accuracy by assessing IGP waveform pattern. This study aimed to further characterize the waveform to improve the diagnostic yield of EPSIS. METHODS We conducted a retrospective analysis of patients with typical GERD symptoms who underwent both EPSIS and 24-h impedance-pH monitoring (MII-pH) at a single tertiary referral center from October 2018 to May 2020. EPSIS was performed by using a through-the-scope catheter connected to the pressure measuring system (TR-W550, TR-TeH08, AP-C35; Keyence, Osaka, Japan) to monitor IGP. Abnormal acid reflux was defined as acid exposure time (AET) over 6.0%. Pressure waveform was characterized as follows: (i) Basal IGP, (ii) Maximum IGP, (iii) Pressure difference, (iv) Gradient of the waveform. RESULTS A total of 57 patients with GERD symptoms were analyzed. Twenty-one patients presented abnormal AET on MII-pH. Among EPSIS parameters, pressure difference during insufflation correlated with AET (ρ = -0.66, P < 0.01) and showed the best diagnostic accuracy for AET with the cutoff value of 4.7 mmHg (area under the curve [AUC], 0.87). The gradient of EPSIS waveform also revealed good diagnostic accuracy for abnormal AET with the cutoff value of 0.07 mmHg/s (AUC, 0.81). CONCLUSIONS Endoscopic pressure study integrated system waveform parameters, especially pressure difference, presented high diagnostic accuracy for the presence of abnormal acid reflux.
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Affiliation(s)
- Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Enrique Rodriguez de Santiago
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.,Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | | | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yugo Iwaya
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Nishikawa Y, Inoue H, Shimamura Y, Abad MRA, Fujiyoshi Y, Owada K, Toshimori A, Tanabe M, Ikeda H, Onimaru M. Simplified endoscopic pressure study integrated system for the diagnosis of gastroesophageal reflux disease. Dig Endosc 2021; 33:663-667. [PMID: 33559229 DOI: 10.1111/den.13947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/20/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/07/2022]
Abstract
Endoscopic pressure study integrated system (EPSIS) is a novel tool for the diagnosis of gastroesophageal reflux disease. It enables the evaluation of the function of the lower esophageal sphincter by monitoring intragastric pressure (IGP) while insufflating the stomach during esophagogastroduodenoscopy. EPSIS can predict abnormal acid reflux with high accuracy based on previous studies. IGP was measured by inserting through the working channel of the scope an intragastric catheter connected to a pressure measuring device. Herein, we assess the feasibility of an updated EPSIS system, which can be performed just by connecting a flush tube to the working channel. This method does not require inserting foreign objects in the stomach and spares catheter insertion in order to simplify the procedure and reduce costs. A single-center pilot study was conducted to evaluate the association between catheter-based EPSIS and the updated EPSIS. The results of EPSIS in 20 patients who underwent both methods were assessed. In all cases, the waveform pattern of IGP measured by catheter-based EPSIS and updated EPSIS was consistent with 15 uphill pattern and five flat pattern. Intraobserver agreement of waveform pattern was perfect between two examiners with kappa value = 1. Intraclass correlation coefficient (ICC) for intraobserver reliability for maximum IGP was excellent with 0.91 (95% confidence interval [CI] of 0.77 < ICC < 0.96) and for pressure gradient was also good with 0.89 (95% CI of 0.71 < ICC < 0.95). In conclusion, our study suggests that the updated EPSIS can be performed without the use of a catheter.
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Affiliation(s)
- Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kaori Owada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Rodríguez de Santiago E, Shimamura Y, Pioche M, Eleftheriadis N, Albéniz E, Bechara R, Yan Chiu PW, Guarner-Argente C, Herreros de Tejada A, Uchima H, Fujiyoshi Y, Ponchon T, González-Gete G, Hew S, Murzi-Pulgar M, Matallana V, Parejo-Carbonell S, Estremera-Arévalo F, Moll F, Onimaru M, Inoue H. Safety and effectiveness of peroral endoscopic myotomy in patients on antiplatelet or anticoagulant therapy: an international multicenter case-control study. Gastrointest Endosc 2021; 93:839-849. [PMID: 32717366 DOI: 10.1016/j.gie.2020.07.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Received: 05/30/2020] [Accepted: 07/14/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS The risk of bleeding and thromboembolic events in patients undergoing peroral endoscopic myotomy (POEM) who are receiving antithrombotic therapy is unknown. Our primary aim was to assess the safety of POEM in this patient subset. Secondary outcomes were rates of clinical success, GERD, and procedure-related outcomes. METHODS This was an international, 1:1, case-control study performed at 10 centers using prospectively maintained databases. All consecutive patients who underwent POEM before November 2019 were considered for inclusion. Cases were patients on antiplatelet and/or anticoagulant therapy. Controls not receiving antithrombotics were matched for age and esophageal motility disorder. Primary outcomes were major bleeding and thromboembolic events on postprocedural day 30. RESULTS Of 2895 patients who underwent POEM, 126 cases (103 on antiplatelets, 35 anticoagulants, 12 both) and 126 controls were enrolled. The rate of major bleeding was higher for the antithrombotics users (5.6% vs 0.8%, P = .03). Anticoagulants and clopidogrel were temporarily interrupted in all cases. Aspirin was continued in 40.5% of users without increasing the bleeding risk. One thromboembolic event occurred in each group (0.79%; P = 1.00). No POEM-related deaths were noted. Rates of clinical success (91.7% vs 96% in controls, P = .20), postprocedural GERD, and technical-related outcomes were similar in both groups. Antithrombotic management was heterogeneous, and guidelines were not adhered to in 23.8% of cases. CONCLUSIONS POEM is safe and effective in patients receiving antithrombotic therapy although it is associated with a greater risk of major bleeding.
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Affiliation(s)
- Enrique Rodríguez de Santiago
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan; Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Mathieu Pioche
- Service d'Hépato-Gastro-Entérologie et d'Endoscopie Digestive, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | | | - Eduardo Albéniz
- Endoscopy Unit, Gastroenterology Department, Complejo Hospitalario de Navarra, Navarrabiomed Biomedical Research Center, UPNA, IdiSNA, Pamplona, Spain
| | - Robert Bechara
- Queen's University, Division of Gastroenterology, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Philip Way Yan Chiu
- Department of Surgery, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong
| | - Carlos Guarner-Argente
- Department of Gastroenterology, Hospital of Santa Creu and Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | - Alberto Herreros de Tejada
- Department of Gastroenterology IDIPHISA-Research Institute Segovia Arana Puerta de Hierro University Hospital, Madrid, Spain
| | - Hugo Uchima
- Endoscopy Unit, Gastroenterology Department, Hospital Germans Trias I Pujol, Badalona, Barcelona, Spain
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Thierry Ponchon
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Gonzalo González-Gete
- Endoscopy Unit, Gastroenterology Department, Complejo Hospitalario de Navarra, Navarrabiomed Biomedical Research Center, UPNA, IdiSNA, Pamplona, Spain
| | - Simon Hew
- Queen's University, Division of Gastroenterology, Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Marianette Murzi-Pulgar
- Department of Gastroenterology, Hospital of Santa Creu and Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | - Virginia Matallana
- Department of Gastroenterology IDIPHISA-Research Institute Segovia Arana Puerta de Hierro University Hospital, Madrid, Spain
| | - Sofía Parejo-Carbonell
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Fermín Estremera-Arévalo
- Endoscopy Unit, Gastroenterology Department, Complejo Hospitalario de Navarra, Navarrabiomed Biomedical Research Center, UPNA, IdiSNA, Pamplona, Spain
| | - Frederic Moll
- Service d'Hépato-Gastro-Entérologie et d'Endoscopie Digestive, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
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Ikeda H, Inoue H, Abad MRA, Fujiyoshi Y, Nishikawa Y, Toshimori A, Tanabe M, Shimamura Y, Sumi K, Iwaya Y, Manolakis A, Onimaru M. Diagnosis of congenital esophageal stenosis in adults and treatment with peroral endoscopic myotomy. Ann Gastroenterol 2021; 34:493-500. [PMID: 34276187 PMCID: PMC8276369 DOI: 10.20524/aog.2021.0618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/28/2020] [Indexed: 12/18/2022] Open
Abstract
Background Congenital esophageal stenosis (CES) in adults is a rare disorder that can present as achalasia, particularly in the distal esophagus. We describe the salient features of CES in adults and identify the feasibility and short-term outcomes of peroral endoscopic myotomy (POEM) for CES. Methods In this retrospective, single-center case series, we included 6 patients with a “misdiagnosis” of achalasia established elsewhere, ultimately diagnosed with CES and referred to our institution for POEM. Symptom improvement (clinical success rate), defined as an Eckardt Symptom Score (ESS) of <3 at 2-month follow up was assessed. Results Six patients (median age: 40 [range: 18-58] years; 4 males) were included. A long-standing history of dysphagia, ring-shaped stenosis on endoscopic examination, “lopsided hourglass” sign on barium esophagogram, and high-resolution manometry findings indicated by a compartmentalized intrabolus pressure pattern with distinction between the stenotic area and the lower esophageal sphincter were the salient features identified. POEM could not be completed in the first 2 cases due to technical challenges. All subsequent 4 patients who underwent successful POEM, exhibited improved ESS of ≤3 (clinical success rate 100%) at 2 months post-POEM. Conclusions Along with identification of salient features on several diagnostic modalities, a differential diagnosis of CES in adults must be considered in patients presenting with long-standing history of dysphagia arising from childhood and persisting into adulthood. Although favorable short-term outcomes of POEM were achieved, further evaluation is still warranted, and an inexperienced operator should not attempt POEM on CES patients due to its technical difficulties.
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Affiliation(s)
- Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Mary Raina Angeli Abad
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Yugo Iwaya
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
| | - Anastassios Manolakis
- Department of Gastroenterology, General Hospital of Athens Evangelismos, Athens, Greece (Anastassios Manolakis)
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan (Haruo Ikeda, Haruhiro Inoue, Mary Raina Angeli Abad, Yusuke Fujiyoshi, Yohei Nishikawa, Akiko Toshimori, Mayo Tanabe, Yuto Shimamura, Kazuya Sumi, Yugo Iwaya, Manabu Onimaru)
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Fujiyoshi Y, Inoue H, Abad MRA, Rodriguez de Santiago E, Nishikawa Y, Sakaguchi T, Toshimori A, Shimamura Y, Tanabe M, Sumi K, Kimura R, Izawa S, Ikeda H, Onimaru M. Importance of second-look endoscopy after per-oral endoscopic myotomy for safe postoperative management. Dig Endosc 2021; 33:364-372. [PMID: 32544261 DOI: 10.1111/den.13770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 04/09/2020] [Revised: 06/07/2020] [Accepted: 06/10/2020] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Per-oral endoscopic myotomy (POEM) is a safe and effective treatment for achalasia and esophageal motility disorders. The role of second-look endoscopy (SE) on postoperative day 1 has not been examined. This study aimed to evaluate the findings and need of SE after POEM. METHODS This is a single-center, retrospective study. All consecutive patients who underwent POEM and SE on postoperative day 1 between December 2017 and September 2019 were included. The primary endpoint was the rate of newly-detected adverse events (nAE) during SE that required endoscopic intervention or deviation from the normal postoperative course. Multivariate logistic regression was used to identify predictors of nAE. RESULTS Four-hundred-ninety-seven patients (mean age, 50.3 years; female, 49.9%) were included. SE identified abnormal findings in a total of 71 patients (14.3%). nAE which required endoscopic intervention or deviation from the normal postoperative course were identified in 12 patients (2.4%): eight (1.6%) entry site dehiscence; two (0.4%) submucosal hemorrhage or hematoma; and two (0.4%) dehiscence of an intraoperative perforation site after endoclip closure. Other findings such as mucosal thermal damage without perforation and small submucosal hematoma were found in 54 patients (10.9%) and five patients (1.0%), respectively. Multivariate analysis showed that longer operation time and intraoperative adverse events (AE) were associated with clinically significant nAE during SE. CONCLUSIONS Second-look endoscopy can detect and treat nAE that may lead to severe AE. Thus, SE should be highly considered before starting oral ingestion in all cases, and especially in those who present an intraoperative AE and longer operation time.
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Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Enrique Rodriguez de Santiago
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.,Department of Gastroenterology and Hepatology Hospital Universitario Ramon y Cajal, University of Alcala IRYCIS, Madrid, Spain
| | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Takuki Sakaguchi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Ryusuke Kimura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Shinya Izawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Fujiyoshi Y, Onimaru M, Inoue H. What are the factors for detecting adverse events in second-look endoscopy after per-oral endoscopic myotomy (POEM)? A reply to "Second-look endoscopy after POEM for all, some or none… More you see, the more you find!". Dig Endosc 2021; 33:466. [PMID: 33006795 DOI: 10.1111/den.13858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Sumi K, Inoue H, Kobayashi Y, Iwaya Y, Abad MRA, Fujiyoshi Y, Shimamura Y, Ikeda H, Onimaru M. Endoscopic treatment of proton pump inhibitor-refractory gastroesophageal reflux disease with anti-reflux mucosectomy: Experience of 109 cases. Dig Endosc 2021; 33:347-354. [PMID: 32415898 DOI: 10.1111/den.13727] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [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: 02/18/2020] [Revised: 05/11/2020] [Accepted: 05/11/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Some patients with gastroesophageal reflux disease (GERD) are refractory to proton pump inhibitor (PPI) therapy. Anti-reflux mucosectomy (ARMS) is a minimally invasive endoscopic procedure for treatment of GERD. In this study, we retrospectively evaluated the outcomes of ARMS performed in patients with PPI-refractory GERD at our institution. METHODS A total of 109 patients with PPI-refractory GERD who underwent ARMS were retrospectively reviewed. Pre- and post-ARMS questionnaire scores, acid exposure time (AET), DeMeester score, proximal extent, and PPI discontinuation rate were compared. RESULTS There was a significant improvement in the symptom score (P < 0.01) and 40-50% of patients were able to discontinue PPI after ARMS. In patients who were followed up for 3 years, sustained improvement in subjective symptoms was observed. AET and DeMeester score significantly improved after ARMS (P < 0.01); however, there was no significant improvement in proximal extent (P = 0.0846). CONCLUSIONS Anti-reflux mucosectomy is an effective minimally invasive therapy for patients with PPI-refractory GERD. The therapeutic efficacy is attributable to suppression of acid backflow due to contraction of the scar tissue in cardia.
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Affiliation(s)
- Kazuya Sumi
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Yasutoshi Kobayashi
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Yugo Iwaya
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | | | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
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Onimaru M, Inoue H, Fujiyoshi Y, Abad MRA, Nishikawa Y, Toshimori A, Shimamura Y, Tanabe M, Sumi K, Ikeda H. Long-term clinical results of per-oral endoscopic myotomy (POEM) for achalasia: First report of more than 10-year patient experience as assessed with a questionnaire-based survey. Endosc Int Open 2021; 9:E409-E416. [PMID: 33655041 PMCID: PMC7895648 DOI: 10.1055/a-1333-1883] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 09/24/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Background and study aims Since per-oral endoscopic myotomy (POEM) was introduced in 2010, it has become accepted as one of the standard treatments for esophageal achalasia worldwide. This study aimed to present long-term clinical results of POEM over 10 years and evaluate the technique and outcomes at the institution where it was first used in clinical settings. Patients and methods Questionnaire-based surveys were sent to patients who received POEM in our institution from September 2008 to May 2010. Patient demographics and procedural outcomes and open-ended questions were posed about the postoperative courses, including symptom improvement and recurrence, additional treatments, and post-POEM gastroesophageal reflux disease (GERD) symptoms. Achalasia symptoms and post-POEM GERD symptoms were evaluated with Eckhardt scores and GerdQ systems, respectively. Results Thirty-six consecutive POEMs were performed in that period and 10-year follow-up data were obtained from 15 patients (41.7 %). Although four cases (26.7 %) required additional pneumatic balloon dilatation (PBD), reduction in post-Eckardt scores were observed in 14 cases (93.3 %). GerdQ score was positive in one patient (6.7 %). Proton pump inhibitors (PPI) were taken by four patients (26.7 %) and their symptoms were well-controlled. Conclusions Clinical results of POEM over 10 years were favorable regardless of various factors. Symptoms improved even in patients who required additional treatments, suggesting that POEM plays a significant role in treatment of achalasia.
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Affiliation(s)
- Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Yohei Nishikawa
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Iwaya Y, Inoue H, Rodríguez de Santiago E, Abad MRA, Fujiyoshi Y, Ueno A, Tanabe M, Sumi K, Tomida H, Ominami M, Ikeda H, Onimaru M, Shimamura Y. Endoscopic pressure study integrated system reflects gastroesophageal junction competence in patients with erosive esophagitis and Barrett´s esophagus. Dig Endosc 2020; 32:1050-1056. [PMID: 32012362 DOI: 10.1111/den.13644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 11/08/2019] [Accepted: 01/30/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES The endoscopic pressure study integrated system (EPSIS) is a novel diagnostic tool for gastroesophageal reflux disease (GERD) by monitoring intragastric pressure (IGP). Evaluation of the lower esophageal sphincter (LES) function may be achieved endoscopically by utilizing this newly developed diagnostic tool. This study aimed to evaluate the association between EPSIS results and gastroesophageal reflux-related diseases, e.g., erosive esophagitis (EE) and Barrett's esophagus (BE). METHODS This was a retrospective, single-center study. All patients who underwent EPSIS between November 2016 and July 2018 were included. EPSIS was performed during esophagogastroduodenoscopy with a dedicated electronic device and a through-the-scope catheter. The maximum IGP (IGP-max) and IGP waveform pattern (flat or uphill) were recorded with this system. Evaluation of an EE and BE was based on the Los Angeles classification and Prague classification, respectively. RESULTS A total of 104 patients were enrolled; 29 (28%) had EE and 42 (40%) had BE. Patients with EE had lower IGP-max values (16.0 vs 18.8 mmHg, P = 0.01) and an EPSIS flat pattern was seen more frequently (82.8% vs 37.3%, P < 0.001). Similarly, patients with BE displayed a lower IGP-max (15.7 vs 19.6 mmHg, P < 0.001) and presented with an EPSIS flat pattern in a higher proportion (69% vs 37.1%, P < 0.001). These differences remained significant on multivariate analysis. CONCLUSIONS The EPSIS, as a novel diagnostic tool, was shown to exhibit a relation with EE and BE, implying that EPSIS is a promising modality to evaluate gastroesophageal reflux-related diseases and LES function endoscopically.
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Affiliation(s)
- Yugo Iwaya
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | | | - Mary Raina Angeli Abad
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Akiko Ueno
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Hideomi Tomida
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Masaki Ominami
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
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32
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Affiliation(s)
- Akiko Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University Tokyo, Japan
| | - Mary Raina Angeli Abad
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University Tokyo, Japan
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Shiwaku H, Inoue H, Sato H, Onimaru M, Minami H, Tanaka S, Sato C, Ogawa R, Okushima N, Yokomichi H. Peroral endoscopic myotomy for achalasia: a prospective multicenter study in Japan. Gastrointest Endosc 2020; 91:1037-1044.e2. [PMID: 31759035 DOI: 10.1016/j.gie.2019.11.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/04/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Peroral endoscopic myotomy (POEM) is an available treatment modalities for achalasia. The reported efficacy of POEM in the only prospective multicenter study was 82%; however, a retrospective multicenter study in Japan reported a higher efficacy rate of 95%. The aim of this study was to prospectively verify treatment outcomes after POEM at multiple facilities in Japan. METHODS This was a prospective single-arm trial of POEM for achalasia at 8 facilities in Japan between April 2016 and March 2018 to evaluate its safety and efficacy. Patients were re-evaluated at 3 months and up to 1 year after POEM. RESULTS Among the 233 patients with achalasia who underwent POEM, procedure-related adverse events occurred in 24 patients (10.3%), none of whom required surgical intervention. In the 207 patients satisfying the inclusion criteria, the efficacy rate of POEM, defined by an Eckardt score ≤3 at 1 year, was 97.4% (95% CI, 95.3%-99.7%). The Eckardt score decreased significantly from 6.6 ± 2.0 preoperatively to 1.1 ± 1.1, 1 year after POEM. Postoperative reflux esophagitis, severe reflux esophagitis, and symptomatic GERD were reported in 54.2%, 5.6%, and 14.7%, respectively, and proton pump inhibitors were administered in 21.1%. CONCLUSIONS Our prospective multicenter study in Japan showed greater efficacy of POEM for achalasia compared with the results of a previous prospective multicenter study. POEM is safe and highly effective for at least 1 year. (Clinical trial registration number: UMIN 000021550.).
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Affiliation(s)
- Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Hitomi Minami
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Shinwa Tanaka
- Department of Gastroenterology, Kobe University Hospital, Hyogo, Japan
| | - Chiaki Sato
- Department of Surgery, Tohoku University School of Medicine, Miyagi, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Oita University Faculty of Medicine, Oita, Japan
| | | | - Hiroshi Yokomichi
- Division of Medicine, Graduate School Department of Interdisciplinary Research, University of Yamanashi, Yamanashi, Japan
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Onimaru M, Inoue H, Bechara R, Tanabe M, Abad MRA, Ueno A, Shimamura Y, Sumi K, Ikeda H, Ito H. Clinical outcomes of per-oral endoscopic tumor resection for submucosal tumors in the esophagus and gastric cardia. Dig Endosc 2020; 32:328-336. [PMID: 31234231 DOI: 10.1111/den.13471] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 04/18/2019] [Accepted: 06/19/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The clinical success of per-oral endoscopic myotomy (POEM) has led to the development of a new field of 'submucosal endoscopy'. This study aimed to evaluate the safety, efficacy, and limitations of per-oral endoscopic tumor resection (POET) in the management of submucosal tumors (SMTs) in the esophagus and the gastric cardia. METHODS POET was performed in 47 patients from January 2011 to December 2017. The indication for POET was SMTs ≤ 30 mm in minor axis diameter. Patient and tumor characteristics (age, gender, tumor location, size, and histology), operative and clinical results of POET (procedure time and completion rate, en bloc resection rate, length of hospitalization, adverse events and tumor recurrence) were analyzed retrospectively. RESULTS POET was successfully completed in 43 patients (91.5%) without any major adverse events (Clavien-Dindo IIIb-IV). Four patients required conversion to an open surgical procedure due to suboptimal visualization during POET. Four patients underwent piecemeal resection of their SMTs including GISTs. Median follow-up was 44 months (10-96 months), during that time, there were no incidences of tumor recurrence. Tumors that had a minor axis diameter > 30 mm or a tumor mass index (TMI) [major axis diameter (mm) × minor axis diameter (mm)] >1000 had a high likelihood of being converted to surgical resection. CONCLUSIONS POET is a safe and effective treatment for SMTs. However, in patients where the minor axis diameter is > 30 mm or the TMI > 1000, surgical excision should be considered. Furthermore, application of POET for SMTs with malignant potential should be carefully considered to ensure optimal oncologic outcomes.
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Affiliation(s)
- Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Robert Bechara
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.,Gastroenterology and Advanced Therapeutic Endoscopy, Queen's University Division of Gastroenterology Kingston General and Hotel Dieu Hospitals, Kingston, Ontario, Canada
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - Akiko Ueno
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroaki Ito
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Inoue H, Tanabe M, de Santiago ER, Abad MRA, Shimamura Y, Fujiyoshi Y, Ueno A, Sumi K, Tomida H, Iwaya Y, Ikeda H, Onimaru M. Anti-reflux mucosal ablation (ARMA) as a new treatment for gastroesophageal reflux refractory to proton pump inhibitors: a pilot study. Endosc Int Open 2020; 8:E133-E138. [PMID: 32010745 PMCID: PMC6976329 DOI: 10.1055/a-1031-9436] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [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: 07/17/2019] [Accepted: 09/12/2019] [Indexed: 02/07/2023] Open
Abstract
Background The incidence of proton pump inhibitor (PPI)-refractory gastroesophageal reflux disease (GERD) has been increasing. While surgical intervention with Laparoscopic Nissen Fundoplication remains the gold standard, less invasive anti-reflux interventions are desired. We have developed a minimally invasive anti-reflux mucosal ablation (ARMA) treatment. Herein, we report its technical details and describe its feasibility, safety, and efficacy in PPI-refractory GERD. Methods We conducted a prospective single-center single-arm interventional trial evaluating the outcome of ARMA in 12 patients with PPI-refractory GERD. GERD-Health Related Quality of Life Questionnaire (GERD-HRQL) evaluation, Frequency Scale for the Symptoms of GERD (FSSG) assessment, and impedance-pH monitoring were performed at baseline and at 2 months post-ARMA. Results A total of 12 patients underwent ARMA with a median follow-up duration of 9 months (range: 6 - 14 months). Median GERD-HRQL score significantly improved from 30.5 to 12 ( P = 0.002); median FSSG score significantly improved from 25 to 10.5 ( P = 0.002), and median DeMeester score decreased from 33.5 to 2.8 ( P = 0.049) at 2 months follow-up. No immediate complications were observed. Conclusion Our pilot study has shown that ARMA, a new endoscopic treatment for PPI-refractory GERD, is simple, safe, and improves GERD-related symptoms and objective acid reflux parameters.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Mayo Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Enrique Rodríguez de Santiago
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan,Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | | | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Akiko Ueno
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hideomi Tomida
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yugo Iwaya
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Inoue H, Shiwaku H, Kobayashi Y, Chiu PWY, Hawes RH, Neuhaus H, Costamagna G, Stavropoulos SN, Fukami N, Seewald S, Onimaru M, Minami H, Tanaka S, Shimamura Y, Santi EG, Grimes K, Tajiri H. Statement for gastroesophageal reflux disease after peroral endoscopic myotomy from an international multicenter experience. Esophagus 2020; 17:3-10. [PMID: 31559513 PMCID: PMC6976544 DOI: 10.1007/s10388-019-00689-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 08/28/2019] [Indexed: 02/07/2023]
Abstract
It has been 10 years since peroral endoscopic myotomy (POEM) was reported for the first time, and POEM has currently become the standard treatment for achalasia and related disorders globally because it is less invasive and has a higher curative effect than conventional therapeutic methods. However, there are limited studies comparing the long-term outcomes of POEM with those of conventional therapeutic methods, particularly in the occurrence of gastroesophageal reflux disease (GERD) after therapy. With this background, we held a consensus meeting to discuss the pathophysiology and management of GERD after POEM based on published papers and experiences of each expert and to discuss the prevention of GERD and dealing with anti-acid drug refractory GERD. This meeting was held on April 27, 2018 in Tokyo to establish statements and finalize the recommendations using the modified Delphi method. This manuscript presents eight statements regarding GERD after POEM.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Toyosu 5-1-38, Koto-Ku, Tokyo, 135-8577 Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, 7-45-1, Nanakuma, Jyonan-ku, Fukuoka, 814-0180 Japan
| | - Yasutoshi Kobayashi
- Department of Gastroenterology and Hepatology, Jichi Medical University, Shimotsuke, Tochigi Japan
| | - Philip W. Y. Chiu
- The Institute of Digestive Disease, Faculty of Medicine of the Chinese University of Hong Kong, Hong Kong, China
| | - Robert H. Hawes
- Center for Interventional Endoscopy, Florida Hospital Orlando, Orlando, Florida USA
| | - Horst Neuhaus
- Department of Internal Medicine, Evangelisches Krankenhaus Düsseldorf, Düsseldorf, Germany
| | - Guido Costamagna
- Digestive Endoscopy Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Stavros N. Stavropoulos
- Division of Gastroenterology, Hepatology, and Nutrition, NYU-Winthrop Hospital, New York, USA
| | - Norio Fukami
- Division of Gastroenterology and Hepatology, Mayo Clinic Arizona, Scottsdale, AZ USA
| | - Stefan Seewald
- Centre of Gastroenterology, Klinik Hirslanden, Zurich, Switzerland
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Toyosu 5-1-38, Koto-Ku, Tokyo, 135-8577 Japan
| | - Hitomi Minami
- Department of Gastroenterology and Hepatology, Nagasaki University, Nagasaki, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Toyosu 5-1-38, Koto-Ku, Tokyo, 135-8577 Japan
| | - Esperanza Grace Santi
- Section of Gastroenterology and Digestive Endoscopy, De La Salle University Medical Center, Dasmarinas City, Philippines
| | - Kevin Grimes
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Hisao Tajiri
- Department of Innovative Interventional Endoscopy Research, The Jikei University School of Medicine, Tokyo, Japan
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Inoue H, Fujiyoshi Y, Abad MRA, Rodriguez de Santiago E, Sumi K, Iwaya Y, Ikeda H, Onimaru M, Shimamura Y. A novel endoscopic assessment of the gastroesophageal junction for the prediction of gastroesophageal reflux disease: a pilot study. Endosc Int Open 2019; 7:E1468-E1473. [PMID: 31673619 PMCID: PMC6811351 DOI: 10.1055/a-0990-9737] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 05/12/2019] [Accepted: 07/09/2019] [Indexed: 01/10/2023] Open
Abstract
Background and aim Hiatal hernia and lower esophageal sphincter (LES) dysfunction play major roles in gastroesophageal reflux disease (GERD) pathogenesis. We developed a novel endoscopic assessment to evaluate the gastroesophageal junction (GEJ). This study aims to evaluate the feasibility of this method for the diagnostic prediction of GERD. Methods A retrospective analysis of patients with GERD symptoms who underwent gastroscopy and esophageal pH-impedance monitoring was conducted. The novel assessment evaluated the following in retroflex view: 1) Cardiac Opening (CO): diameter of the opening of the cardia, 2) Sliding Hernia (SH): length from the diaphragmatic crus to the squamocolumnar junction, 3) Scope Holding Time% (SHT%): the percentage of time that the Scope Holding Sign (SHS) was observed out of 30 seconds. The SHS is defined as the lower esophagus holding the endoscope under excessive insufflation. The results of this assessment and that of pH-impedance monitoring were compared. Results In total, 61 patients (mean age ± SD, 54.1 ± 16.4 years, 32 males) were enrolled. CO and SH were significantly correlated with acid exposure time (AET) (ρ = 0.36, P = 0.005, and ρ = 0.36, P = 0.004). The optimal cutoff of CO for AET > 6 % was 3 cm (Sensitivity = 72.4 %, Specificity = 46.9 %, AUC = 0.64) and that of SH was 2 cm (Sensitivity = 55.2 %, Specificity = 75.0 %, AUC = 0.70). When the population was stratified according to this cutoff, patients with CO > 3 cm and those with SH > 2 cm presented higher AET (15.1 vs 4.1 %, P = 0.037, and 23.0 vs 3.6 %, P = 0.026). Optimal cutoff of SHT% for the number of all reflux episodes > 80 was 75 % (Sensitivity = 81.8 %, Specificity = 54.6%, AUC = 0.67). Patients with SHT% < 75 % presented a higher number of all reflux episodes (88 vs 65, P = 0.014). Sensitivity, specificity, and accuracy of SHT% < 75 % for all reflux episodes > 80 were 81.8 % (95 %CI: 67.7 - 91.8), 54.5% (95 %CI: 40.4 - 64.5), and 68.2 % (95 %CI: 54.0 - 78.1). Conclusion This novel endoscopic assessment of GEJ significantly predicted the presence of GERD and merits further testing in future studies.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan,Corresponding author Yusuke Fujiyoshi, MD Digestive Diseases CenterShowa University Koto Toyosu Hospital5-1-38 ToyosuKoto-kuTokyo 135-8577Japan+81-3-62046396
| | | | | | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | | | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo 135-8577, Japan
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Onimaru M, Inoue H, Ikeda H, Abad MRA, Quarta Colosso BM, Shimamura Y, Sumi K, Deguchi Y, Ito H, Yokoyama N. Combination of laparoscopic and endoscopic approaches for neoplasia with non-exposure technique (CLEAN-NET) for gastric submucosal tumors: updated advantages and limitations. Ann Transl Med 2019; 7:582. [PMID: 31807563 DOI: 10.21037/atm.2019.09.19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Laparoscopic and endoscopic cooperative surgery (LECS) for gastric submucosal tumors (SMTs) has been developed under the concept of resecting gastric tumors with both complete curability and preserving organ functions. Precise resection is obtained by classical LECS, however, concerns regarding intraoperative bacterial infection and dissemination of the tumor cells into the abdominal cavity by LECS with exposure technique still remain. To prevent these concerns, several LECS-related procedures with non-exposure techniques, such as combination of laparoscopic and endoscopic approaches for neoplasia with non-exposure technique (CLEAN-NET) and non-exposed endoscopic wall-inversion surgery (NEWS), have been reported to be safe and feasible. Classical LECS, CLEAN-NET, and NEWS have the same concept, however, each has its own different characteristic procedures; exposure or non-exposure technique, inversion of the tumor into or outer the lumen, retrieval of tumor per oral or through the abdominal cavity, and dominance in the role of the endoscopist or the laparoscopic surgeon. Familiarization with these procedure details is important to understand their indications, advantages and limitations, resulting in providing a tailored minimally invasive surgery for patients. The main scope of this review article is to introduce readers to the clinical application, procedure, and results of CLEAN-NET, both from previous literatures and from our experience, as well as to offer a closer look at its advantages and limitations while comparing with other LECS procedures from the viewpoint of introducing CLEAN-NET first.
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Affiliation(s)
- Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | | | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yoshio Deguchi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hiroaki Ito
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Noboru Yokoyama
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Inoue H, Shimamura Y, Rodriguez de Santiago E, Kobayashi Y, Ominami M, Fujiyoshi Y, Sumi K, Ikeda H, Onimaru M, Manolakis AC. Diagnostic performance of the endoscopic pressure study integrated system (EPSIS): a novel diagnostic tool for gastroesophageal reflux disease. Endoscopy 2019; 51:759-762. [PMID: 31216578 DOI: 10.1055/a-0938-2777] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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] [Indexed: 12/10/2022]
Abstract
BACKGROUND The endoscopic pressure study integrated system (EPSIS) is a prototypic system for monitoring intragastric pressure (IGP) fluctuations that result from opening of the cardia during gastric distension. The performance of EPSIS for the diagnosis of gastroesophageal reflux disease (GERD) was evaluated. METHODS A retrospective analysis was conducted of data prospectively collected over a 2-year period from 59 patients who underwent gastroscopy, EPSIS, and 24-hour pH monitoring. Using a dedicated electronic device and a through-the-scope catheter, maximum IGP (IGPmax) and IGP waveform pattern (uphill/flat) were recorded. RESULTS The optimal IGPmax cutoff was 18.7 mmHg. IGPmax < 18.7 mmHg (sensitivity 74.2 %, 95 % confidence interval [CI] 56.8 - 86.3; specificity 57.1 %, 95 %CI 39.1 - 73.5) and flat pattern (sensitivity 71.0 %, 95 %CI 53.4 - 83.9; specificity 82.1 %, 95 %CI 64.4 - 92.1) were associated with GERD. "Double" EPSIS positivity (IGPmax < 18.7 mmHg and flat pattern) provided maximum specificity (85.7 %, 95 %CI 68.5 - 94.3), whereas "any" EPSIS positivity (IGPmax < 18.7 mmHg or flat pattern) provided maximum sensitivity (80.6 %, 95 %CI 63.7 - 90.8). Maximum specificity and sensitivity for nonerosive reflux disease (NERD) was > 70 %. In multivariate analysis, "double" EPSIS positivity was the strongest predictor of GERD (odds ratio [OR] 16.05, 95 %CI 3.23 - 79.7) and NERD (OR 14.7, 95 %CI 2.37 - 90.8). CONCLUSION EPSIS emerges as a reliable adjunct to routine gastroscopy for GERD diagnosis, and might prove helpful for the stratification and management of patients with reflux disorders.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | | | | | - Masaki Ominami
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Anastassios C Manolakis
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
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Abad MRA, Inoue H, Ikeda H, Manolakis A, Rodriguez de Santiago E, Sharma A, Fujiyoshi Y, Fukuda H, Sumi K, Onimaru M, Shimamura Y. Utilizing fourth-generation endocytoscopy and the 'enlarged nuclear sign' for in vivo diagnosis of early gastric cancer. Endosc Int Open 2019; 7:E1002-E1007. [PMID: 31404432 PMCID: PMC6687508 DOI: 10.1055/a-0957-2866] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 01/28/2019] [Accepted: 05/02/2019] [Indexed: 12/28/2022] Open
Abstract
Background and study aims Fourth-generation endocytoscopy is an ultra-high magnification endoscopic technique designed to provide excellent quality in vivo histologic assessment of gastrointestinal lesions. This study aims to evaluate the diagnostic accuracy of endocytoscopy in early gastric cancer diagnosis. Patients and methods A single-center, retrospective analysis of prospectively collected data from all gastric endocytoscopic examinations was conducted. Two expert endoscopists, blinded to white-light and narrow-band imaging findings as well as histopathologic diagnosis, independently reviewed and diagnosed all endocytoscopic images. A newly recognized "enlarged nuclear sign" was detected, and its implication in early gastric cancer diagnosis was evaluated. The diagnostic performance of fourth-generation endocytoscopy was assessed while using the gold standard histopathology as a reference. Results Forty-three patients (mean age±SD, 72.6 ± 12.1 years; 31 males) were enrolled. Based on histopathology, 23 had well-differentiated adenocarcinomas, four adenomas, and 16 non-neoplastic lesions. The sensitivity, specificity, and accuracy of fourth-generation endocytoscopy for gastric cancer diagnosis were 87.0 % (95 % CI: 67.9 - 95.5), 80.0 % (95 % CI: 58.4 - 91.9), and 83.7 % (95 % CI: 70.0 - 91.9) by endoscopist A; and 91.3 % (95 % CI: 73.2 - 97.6), 75.0 % (95 % CI: 53.1 - 88.8), and 83.7 % (95 % CI: 70.0 - 91.9) by endoscopist B. The inter-observer agreement, Kappa statistic = 0.71 (95 % CI: 0.50 - 0.93), was good. The sensitivity, specificity, and accuracy of the enlarged nuclear sign for early gastric cancer diagnosis were 87.0 % (95 % CI: 67.9 - 95.5), 95.0 % (95 % CI: 76.4 - 99.1), and 90.7 % (95 % CI: 78.4 - 96.3) by endoscopist A; and 82.6 % (95 % CI: 62.9 - 93.0), 85.0 % (95 % CI: 64.0 - 94.8), and 83.7 % (95 % CI: 70.0 - 91.9) by endoscopist B. The inter-observer agreement, Kappa statistic = 0.68 (95 % CI: 0.51 - 0.89) was good. Conclusion: Fourth-generation endocytoscopy appears to aid in the diagnosis of early gastric cancer, particularly well-differentiated adenocarcinomas, due to its good diagnostic accuracy and identification of the "enlarged nuclear sign," and deserves further evaluation in future studies.
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Affiliation(s)
- Mary Raina Angeli Abad
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan,Corresponding author Mary Raina Angeli Abad, MD Digestive Diseases CenterShowa University Koto Toyosu Hospital5-1-38 Toyosu, Koto-kuTokyo 135-8577Japan+81-3-6204-6396
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | | | - Ashish Sharma
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hisashi Fukuda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Shiwaku H, Inoue H, Onimaru M, Minami H, Sato H, Sato C, Tanaka S, Ogawa R, Okushima N. Multicenter collaborative retrospective evaluation of peroral endoscopic myotomy for esophageal achalasia: analysis of data from more than 1300 patients at eight facilities in Japan. Surg Endosc 2019; 34:464-468. [PMID: 31183791 DOI: 10.1007/s00464-019-06833-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 05/15/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Peroral endoscopic myotomy (POEM) is a novel, minimally invasive treatment for esophageal achalasia. We retrospectively examined and evaluated the results following POEM to verify the technique's efficacy and safety. METHODS We retrospectively analyzed data for patients who underwent POEM at eight Japanese facilities between September 2008 and October 2015. Pre- and postoperative assessments 3 months and 1 year after POEM included patient interviews, endoscopy, and manometry. RESULTS A total of 1346 patients underwent POEM during the study period. Achalasia was the straight type in 1105 patients (82%) and the sigmoid type in 241 patients (18%). The average patient age was 47.2 years (range 3-95 years); 617 patients (46%) were men and 729 (54%) were women. Previous treatment included balloon dilatation in 381 patients (28%) and Heller-Dor operation in 43 patients (3%). The average operation time was 99.6 min. The mean length of the myotomy in the esophageal body was 10.8 cm, and the myotomy extended into the stomach a mean of 2.8 cm. The response rate (Eckardt score ≤ 3) was 95.1% 3 months postoperatively and 94.7% 1 year postoperatively. We noted 50 adverse events (3.7%) of Clavien-Dindo classification grade ≤ IIIa, and all resolved with conservative treatment. There were no Clavien-Dindo classification grade ≥ IIIb adverse events. After POEM, erosive esophagitis according to the Los Angeles classification was absent in 37% of the patients, grade A in 33%, B in 24%, C in 6%, and D in 0.2%. Symptomatic gastroesophageal reflux disease after POEM was confirmed in 14.8% of the patients; both erosive esophagitis and symptomatic gastroesophageal reflux disease responded to treatment with a proton-pump inhibitor. CONCLUSION Our results confirmed the safety and efficacy of POEM in a large patient series and support POEM as the first-line and standard treatment for esophageal achalasia.
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Affiliation(s)
- Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan.
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Hitomi Minami
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Chiaki Sato
- Department of surgery, Tohoku University School of Medicine, Miyagi, Japan
| | - Shinwa Tanaka
- Department of Gastroenterology, Kobe University Hospital, Hyogo, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Oita University Faculty of Medicine, Oita, Japan
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Rodríguez de Santiago E, Mohammed N, Manolakis A, Shimamura Y, Onimaru M, Inoue H. Anterior versus posterior myotomy during poem for the treatment of achalasia: systematic review and meta-analysis of randomized clinical trials. J Gastrointestin Liver Dis 2019; 28:107-115. [PMID: 30851179 DOI: 10.15403/jgld.2014.1121.281.pom] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS The optimal orientation of the myotomy during peroral endoscopic myotomy (POEM) is unknown. This meta-analysis aims to compare anterior and posterior myotomy regarding clinical success and safety. METHODS PubMed, Embase, Cochrane Library, WOK, and clinicaltrials.gov were searched to identify randomized clinical trials (RCTs) comparing anterior and posterior myotomy during POEM for the treatment of achalasia. The primary outcome was clinical success. Secondary outcomes included postprocedural gastroesophageal reflux disease (GERD), adverse events (AEs), manometric findings, and procedure-related parameters. Random-effects models were used for the primary analysis. RESULTS Four RCTs enrolling 488 patients were included. Overall clinical success 3-12 months after POEM was 97% (95% confidence interval [CI] 93-100%) and did not differ between anterior and posterior myotomy (Relative risk [RR] 0.98, 95%CI: 0.96-1.01; I2: 0%). Incidence of GERD after POEM based on 24-hour pH monitoring (RR 0.98, 95%CI: 0.75-1.28), endoscopy (RR 1.04, 95%CI: 0.78-1.38), and symptoms (RR 0.89, 95%CI: 0.55-1.42) was similar. Posterior myotomy was associated with fewer AEs (RR 0.63, 95%CI: 0.42-0.94), lower risk of mucosotomy (RR 0.42, 95%CI: 0.27-0.66) and shorter incision closure time (mean difference: -2.28 minutes, 95%CI: -3.46 to -1.10). Anterior myotomy was associated with a shorter length of hospitalization (mean difference: 0.31 days, 95%CI: 0.05-0.57), although the clinical relevance of this finding is negligible. No significant differences were found regarding manometric outcomes, total operation and myotomy time. CONCLUSIONS Anterior and posterior myotomy are equally effective for the treatment of achalasia, without significant differences in postprocedural GERD. Posterior POEM was associated with fewer AEs and a shorter incision closure time.
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Affiliation(s)
- Enrique Rodríguez de Santiago
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan;Gastroenterology and Hepatology Department, Hospital Universitario Ramón y Cajal. University of Alcala. Instituto Ramón y Cajal de Investigación Sanitaria, Madrid,
| | - Noor Mohammed
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan;Department of Gastroenterology, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Anastassios Manolakis
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan;Department of Gastroenterology, Larissa University Hospital, Larissa, Greece
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
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Bechara R, Woo M, Hookey L, Chung W, Grimes K, Ikeda H, Onimaru M, Sumi K, Nakamura J, Hata Y, Maruyama S, Gomi K, Shimamura Y, Inoue H. Peroral endoscopic myotomy (POEM) for complex achalasia and the POEM difficulty score. Dig Endosc 2019; 31:148-155. [PMID: 30417948 DOI: 10.1111/den.13294] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 07/30/2018] [Accepted: 10/31/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Peroral endoscopic myotomy (POEM) for achalasia is technically challenging to carry out in patients with type III, multiple prior treatments, prior myotomy, and sigmoid type. Herein, we present a series of consecutive patients with complex achalasia and introduce the POEM difficulty score (PDS). AIM To demonstrate the application and discuss the utility of PDS and present the feasibility, safety, and efficacy of POEM in complex achalasia patients. METHODS Forty consecutive POEM were carried out with 28 meeting the criteria for complex achalasia. Primary outcome was clinical success (Eckardt score ≤3) at a minimum of 3 months follow-up. Secondary outcomes included adverse events, procedural velocity and PDS. RESULTS Twenty-eight complex and 12 non-complex POEM procedures were carried out with 100% and 92% clinical success, respectively, without any major adverse events with a median follow up of 15 months (complex) and 8 months (non-complex). Mean velocities for non-complex, type III, prior myotomy, ≥4 procedures and sigmoid type were as follows: 4.4 ± 1.6, 4.8 ± 1.5, 5.9 ± 2.2, 6.9 ± 2.2 and 8.2 ± 3.2 min/cm, respectively. Median PDS for non-complex, type III, prior myotomy, ≥4 treatments and sigmoid type were 1 (0-3), 2 (0-4), 2.5 (1-6), 3 (2-6) and 3.5 (1-6), respectively. PDS was shown to correlate well with procedural velocity with a correlation coefficient of 0.772 (Spearman's P < 0.001). CONCLUSIONS PDS identifies the factors that contribute to challenging POEM procedures and correlates well with procedural velocity. The order of increasing difficulty of POEM in complex achalasia appears to be type III, prior myotomy, ≥4 treatments and sigmoid type.
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Affiliation(s)
- Robert Bechara
- Division of Gastroenterology, Kingston Health Sciences Center, Queens University, Kingston General Hospital, Ontario, Canada
| | - Matthew Woo
- Division of Gastroenterology, Kingston Health Sciences Center, Queens University, Kingston General Hospital, Ontario, Canada
| | - Lawrence Hookey
- Division of Gastroenterology, Kingston Health Sciences Center, Queens University, Kingston General Hospital, Ontario, Canada
| | - Wiley Chung
- Division of Thoracic Surgery, Kingston Health Sciences Center, Queens University, Kingston General Hospital, Ontario, Canada
| | - Kevin Grimes
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, USA
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Jun Nakamura
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Yoshitaka Hata
- Department of Medicine and Bioregulatory Science, Kyushu University, Fukuoka, Japan
| | - Shota Maruyama
- Department of Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kuniyo Gomi
- Division of Gastroenterology, Showa University, Fujigaoka Hospital, Kanagawa, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
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Inoue H, Ueno A, Shimamura Y, Manolakis A, Sharma A, Kono S, Nishimoto M, Sumi K, Ikeda H, Goda K, Onimaru M, Yamaguchi N, Itoh H. Peroral endoscopic myotomy and fundoplication: a novel NOTES procedure. Endoscopy 2019; 51:161-164. [PMID: 30654395 DOI: 10.1055/a-0820-2731] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [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] [Indexed: 12/13/2022]
Abstract
BACKGROUND Peroral endoscopic myotomy (POEM) has become the minimally invasive endoscopic treatment for achalasia; however, gastroesophageal reflux (GER) post-POEM has been reported. A pilot study was conducted in which an endoscopic fundoplication was added to the standard POEM (POEM + F) procedure to overcome this issue. We report the technical details of POEM + F and short-term safety results. METHODS POEM + F was performed in 21 patients. After completing myotomy, the endoscope was advanced from the submucosal tunnel into the peritoneal cavity. A partial mechanical barrier was created by retracting the anterior gastric wall at the esophagogastric junction with the use of endoclips and an endoloop. RESULTS POEM + F was technically feasible in all cases and created a visually recognizable fundoplication. The clinical course after POEM + F was uneventful. No immediate or delayed complications occurred. CONCLUSION POEM + F may help mitigate the post-POEM incidence of GER and serve as a minimally invasive endoscopic alternative to a laparoscopic Heller-Dor procedure. This is the largest case series of peroral natural orifice transluminal endoscopic surgery without laparoscopic assistance in the human foregut.
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Affiliation(s)
- Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Akiko Ueno
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Anastassios Manolakis
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Ashish Sharma
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Shin Kono
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Masayuki Nishimoto
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Kazuya Sumi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Haruo Ikeda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Kenichi Goda
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Noriko Yamaguchi
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
| | - Hiroaki Itoh
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Showa University, Tokyo, Japan
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Inoue H, Shiwaku H, Iwakiri K, Onimaru M, Kobayashi Y, Minami H, Sato H, Kitano S, Iwakiri R, Omura N, Murakami K, Fukami N, Fujimoto K, Tajiri H. Clinical practice guidelines for peroral endoscopic myotomy. Dig Endosc 2018; 30:563-579. [PMID: 30022514 DOI: 10.1111/den.13239] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [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: 05/28/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022]
Abstract
Peroral endoscopic myotomy (POEM) is a novel clinical technique developed in Japan used to treat esophageal achalasia and esophageal motility disorders. This technique has been rapidly accepted and widely disseminated throughout our clinical practice because of its low invasiveness, technical novelty, and high efficacy. Since the advent of POEM, there have been no clinical guidelines that clearly indicated its standard of care, and these guidelines have been anticipated both nationally and internationally by clinicians who engage in POEM practice. In 2017, to meet these needs, the Japan Gastroenterological Endoscopy Society (JGES) launched the guideline committee for POEM. Based on the guideline development process proposed by the Medical Information Network Distribution Service (MINDS), the guideline committee initially created research questions on POEM and conducted a systematic review and meta-analysis on each topic. The clinical research extracted from databases for these clinical questions and the systematic review mainly comprised a few retrospective studies with a small number of participants and short trial periods; hence, the strength of the evidence and recommendations derived from these results was low. Throughout this process, the guideline committee met thrice: once on May 13, 2017, and again on September 17, 2017, to formulate the draft. A consensus meeting was then held on January 14, 2018, in Tokyo to establish the guideline statements and finalize the recommendations using the modified Delphi method. This manuscript presents clinical guidelines regarding current standards of practice and recommendations in terms of the nine chief topics in POEM.
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Affiliation(s)
- Haruhiro Inoue
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | | | - Manabu Onimaru
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Hitomi Minami
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Hiroki Sato
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Seigo Kitano
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Nobuo Omura
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Norio Fukami
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Hisao Tajiri
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
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Chen YI, Inoue H, Ujiki M, Draganov PV, Colavita P, Mion F, Romanelli J, Chiu P, Balassone V, Patel L, Abbas A, Yang D, Dunst C, Pioche M, Roman S, Rivory J, Ponchon T, Desilets D, Maselli R, Onimaru M, Nakamura J, Hata Y, Hajiyeva G, Ismail A, Ngamruengphong S, Bukhari M, Chavez YH, Kumbhari V, Repici A, Khashab MA. An international multicenter study evaluating the clinical efficacy and safety of per-oral endoscopic myotomy in octogenarians. Gastrointest Endosc 2018; 87:956-961. [PMID: 28235595 DOI: 10.1016/j.gie.2017.02.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 11/13/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Per-oral endoscopic myotomy (POEM) for achalasia is particularly appealing in the elderly because it is minimally invasive. However, data in patients aged ≥80 years are scarce. The aim of this study was to assess the clinical outcome of POEM in octogenarians. METHODS This was a multicenter retrospective study at 8 centers. Consecutive octogenarians with achalasia who underwent POEM between 2010 and 2016 were included. Rates of technical success (completion of myotomy), clinical response (Eckardt score ≤3), and adverse events (severity graded as per American Society for Gastrointestinal Endoscopy lexicon) were assessed. RESULTS A total of 76 patients (47.4% female, mean age 84 years) underwent POEM for treatment of achalasia: type I, 17.1%; type II, 35.5%; type III, 17.1%; and unspecified, 30.3%. Overall, 41.1% were treatment naïve, whereas others had previous botulinum toxin injection and/or pneumatic dilation. The mean (± standard deviation [SD]) age-adjusted Charlson comorbidity index score was 6.2 ± 2.4, with the majority of patients having American Society of Anesthesiologists Physical Status Classification System (ASA) scores of II/III. Technical success was 93.4%, with a median follow-up of 256 days. Fourteen adverse events occurred in 11 patients (14.5%). There were 3 inadvertent mucosotomies, 6 cases of symptomatic capnoperitoneum and/or capnomediastinum, 2 esophageal leaks, 1 cardiac arrhythmia, and 2 other). The severities of these adverse events were mild (78.6%), moderate (14.3%), and severe (7.1%). Clinical success was achieved in 90.8% of patients, with a mean (± SD) Eckardt score reduction from 7.0 ± 2.3 to 0.8 ± 0.1 (P < .001), a median follow-up of 256 days, and interquartile range of 66 to 547. CONCLUSION Although the rate of technical success may be somewhat lower and the rate of adverse events slightly higher than previously reported, our data suggest that POEM in octogenarians is safe and effective, supporting its role as a primary modality for achalasia in this patient population.
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Affiliation(s)
- Yen-I Chen
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Michael Ujiki
- Department of Surgery, Section of Minimally Invasive Surgery, NorthShore University Health System, Evanston, Illinois, USA
| | - Peter V Draganov
- Division of Gastroenterology, Hepatology and Nutrition, University of Florida, Gainesville, Florida, USA
| | - Paul Colavita
- Division of Gastrointestinal and Minimally Invasive Surgery, The Oregon Clinic, Portland, Oregon, USA
| | - Francois Mion
- Digestive Physiology, Hospices Civils de Lyon and Lyon University, Lyon, France
| | - John Romanelli
- Baystate Medical Center, University of Massachusetts School of Medicine, Springfield, Massachusetts, USA
| | - Philip Chiu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Valerio Balassone
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Lava Patel
- Department of Surgery, Section of Minimally Invasive Surgery, NorthShore University Health System, Evanston, Illinois, USA
| | - Ali Abbas
- Division of Gastroenterology, Hepatology and Nutrition, University of Florida, Gainesville, Florida, USA
| | - Dennis Yang
- Division of Gastroenterology, Hepatology and Nutrition, University of Florida, Gainesville, Florida, USA
| | - Christy Dunst
- Division of Gastrointestinal and Minimally Invasive Surgery, The Oregon Clinic, Portland, Oregon, USA
| | - Mathieu Pioche
- Digestive Physiology, Hospices Civils de Lyon and Lyon University, Lyon, France
| | - Sabine Roman
- Digestive Physiology, Hospices Civils de Lyon and Lyon University, Lyon, France
| | - Jérôme Rivory
- Digestive Physiology, Hospices Civils de Lyon and Lyon University, Lyon, France
| | - Thierry Ponchon
- Digestive Physiology, Hospices Civils de Lyon and Lyon University, Lyon, France
| | - David Desilets
- Baystate Medical Center, University of Massachusetts School of Medicine, Springfield, Massachusetts, USA
| | - Roberta Maselli
- Digestive Endoscopy Unit, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Jun Nakamura
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Yoshitaka Hata
- Digestive Diseases Center, Showa University, Koto-Toyosu Hospital, Koto-Ku, Tokyo, Japan
| | - Gulara Hajiyeva
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Amr Ismail
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Saowanee Ngamruengphong
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Majidah Bukhari
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Yamile Haito Chavez
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Vivek Kumbhari
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Alessandro Repici
- Digestive Endoscopy Unit, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Mouen A Khashab
- Department of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
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Ngamruengphong S, Inoue H, Chiu PWY, Yip HC, Bapaye A, Ujiki M, Patel L, Desai PN, Hayee B, Haji A, Wong VWY, Perretta S, Dorwat S, Pioche M, Roman S, Rivory J, Mion F, Ponchon T, Garros A, Nakamura J, Hata Y, Balassone V, Onimaru M, Hajiyeva G, Ismail A, Chen YI, Bukhari M, Haito-Chavez Y, Kumbhari V, Maselli R, Repici A, Khashab MA. Retraction notice to "Long-term outcomes of per-oral endoscopic myotomy in patients with achalasia with a minimum follow-up of 2 years: an international multicenter study": [YMGE 85 (2017) 927-933]. Gastrointest Endosc 2018; 87:1164. [PMID: 29571778 DOI: 10.1016/j.gie.2018.02.005] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted due to overlapping/duplicate material. Data from some patients from this study have previously been published in other journals without cross-referencing. Twenty patients overlap with a paper by Kumbhari et al.1 Thirty-five patients overlap with the study by Ngamruengphong et al.2.
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Affiliation(s)
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | | | - Hon Chi Yip
- Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Amol Bapaye
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
| | - Michael Ujiki
- Department of Surgery, NorthShore University HealthSystem, Chicago, Illinois, USA
| | - Lava Patel
- Department of Surgery, NorthShore University HealthSystem, Chicago, Illinois, USA
| | | | - Bu Hayee
- Department of Gastroenterology, Kings College Hospital NHS Foundation Trust, London, United Kingdom
| | - Amyn Haji
- Department of Gastroenterology, Kings College Hospital NHS Foundation Trust, London, United Kingdom
| | | | - Silvana Perretta
- Department of Gastrointestinal and Endocrine Surgery, University of Strasbourg, Strasbourg, France
| | - Shivangi Dorwat
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
| | - Mathieu Pioche
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - Sabine Roman
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Jérôme Rivory
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - François Mion
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Thierry Ponchon
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - Aurélien Garros
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Jun Nakamura
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Yoshitaka Hata
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Valerio Balassone
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Gulara Hajiyeva
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Amr Ismail
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Yen-I Chen
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Majidah Bukhari
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Yamile Haito-Chavez
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Vivek Kumbhari
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Roberta Maselli
- Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Research Hospital, Milan, Italy
| | - Alessandro Repici
- Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Research Hospital, Milan, Italy
| | - Mouen A Khashab
- Division of Gastroenterology, Johns Hopkins Hospital, Baltimore, Maryland, USA
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Jowhari F, Inoue H, Ikeda H, Onimaru M, Bechara R. A216 PREDICTING DIFFICULT CASES IN POEM (PER-ORAL ENDOSCOPIC MYOTOMY) PROCEDURES. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.216] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- F Jowhari
- Queen’s University, Kingston, ON, Canada
| | - H Inoue
- Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - H Ikeda
- Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - M Onimaru
- Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - R Bechara
- Queen’s University, Kingston, ON, Canada
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Inoue H, Sumi K, Onimaru M. History of surgical therapy and recent advancement of endoscopic therapy for GERD. Nihon Shokakibyo Gakkai Zasshi 2017; 114:1797-1803. [PMID: 28978880 DOI: 10.11405/nisshoshi.114.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital
| | - Kazuya Sumi
- Digestive Disease Center, Showa University Koto Toyosu Hospital
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital
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Ngamruengphong S, Inoue H, Ujiki MB, Patel LY, Bapaye A, Desai PN, Dorwat S, Nakamura J, Hata Y, Balassone V, Onimaru M, Ponchon T, Pioche M, Roman S, Rivory J, Mion F, Garros A, Draganov PV, Perbtani Y, Abbas A, Pannu D, Yang D, Perretta S, Romanelli J, Desilets D, Hayee B, Haji A, Hajiyeva G, Ismail A, Chen YI, Bukhari M, Haito-Chavez Y, Kumbhari V, Saxena P, Talbot M, Chiu PWY, Yip HC, Wong VWY, Hernaez R, Maselli R, Repici A, Khashab MA. Efficacy and Safety of Peroral Endoscopic Myotomy for Treatment of Achalasia After Failed Heller Myotomy. Clin Gastroenterol Hepatol 2017; 15:1531-1537.e3. [PMID: 28189695 DOI: 10.1016/j.cgh.2017.01.031] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [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: 06/21/2016] [Revised: 01/21/2017] [Accepted: 01/23/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS In patients with persistent symptoms after Heller myotomy (HM), treatment options include repeat HM, pneumatic dilation, or peroral endoscopic myotomy (POEM). We evaluated the efficacy and safety of POEM in patients with achalasia with prior HM vs without prior HM. METHODS We conducted a retrospective cohort study of 180 patients with achalasia who underwent POEM at 13 tertiary centers worldwide, from December 2009 through September 2015. Patients were divided into 2 groups: those with prior HM (HM group, exposure; n = 90) and those without prior HM (non-HM group; n = 90). Clinical response was defined by a decrease in Eckardt scores to 3 or less. Adverse events were graded according to criteria set by the American Society for Gastrointestinal Endoscopy. Technical success, clinical success, and rates of adverse events were compared between groups. Patients were followed up for a median of 8.5 months. RESULTS POEM was technically successful in 98% of patients in the HM group and in 100% of patients in the non-HM group (P = .49). A significantly lower proportion of patients in the HM group had a clinical response to POEM (81%) than in the non-HM group (94%; P = .01). There were no significant differences in rates of adverse events between the groups (8% in the HM group vs 13% in the non-HM group; P = .23). Symptomatic reflux and reflux esophagitis after POEM were comparable between groups. CONCLUSIONS POEM is safe and effective for patients with achalasia who were not treated successfully by prior HM. Although the rate of clinical success in patients with prior HM is lower than in those without prior HM, the safety profile of POEM is comparable between groups.
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Affiliation(s)
- Saowanee Ngamruengphong
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Michael B Ujiki
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Lava Y Patel
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Amol Bapaye
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
| | | | - Shivangi Dorwat
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
| | - Jun Nakamura
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Yoshitaka Hata
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Valerio Balassone
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Thierry Ponchon
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - Mathieu Pioche
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - Sabine Roman
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Jérôme Rivory
- Gastroenterology and Endoscopy Unit, Digestive Disease Department, L Pavillon-Edouard Herriot Hospital, Lyon, France
| | - François Mion
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Aurélien Garros
- Université de Lyon and Hospices Civils de Lyon, Digestive Physiology, E Herriot Hospital, Lyon, France; INSERM U1032, Lyon, France
| | - Peter V Draganov
- Division of Gastroenterology and Hepatology and Nutrition, University of Florida College of Medicine, Gainesville, Florida
| | - Yaseen Perbtani
- Division of Gastroenterology and Hepatology and Nutrition, University of Florida College of Medicine, Gainesville, Florida
| | - Ali Abbas
- Division of Gastroenterology and Hepatology and Nutrition, University of Florida College of Medicine, Gainesville, Florida
| | - Davinderbir Pannu
- Division of Gastroenterology and Hepatology and Nutrition, University of Florida College of Medicine, Gainesville, Florida
| | - Dennis Yang
- Division of Gastroenterology and Hepatology and Nutrition, University of Florida College of Medicine, Gainesville, Florida
| | - Silvana Perretta
- Department of Gastrointestinal and Endocrine Surgery, University of Strasbourg, Strasbourg, France
| | - John Romanelli
- Department of Surgery, Baystate Medical Center, Tufts University School of Medicine, Springfield, Massachusetts
| | - David Desilets
- Division of Gastroenterology, Department of Medicine, Baystate Medical Center, Tufts University School of Medicine, Springfield, Massachusetts
| | - Bu Hayee
- Department of Gastroenterology, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Amyn Haji
- Department of Gastroenterology, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Gulara Hajiyeva
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Amr Ismail
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Yen-I Chen
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Majidah Bukhari
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Yamile Haito-Chavez
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Vivek Kumbhari
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Payal Saxena
- Department of Gastroenterology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Michael Talbot
- University of New South Wales, Sydney, New South Wales, Australia
| | | | - Hon-Chi Yip
- Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | | | - Ruben Hernaez
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Roberta Maselli
- Digestive Endoscopy Unit, Humanitas Research Hospital, Milan, Italy Digestive Endoscopy Unit, Humanitas Unversity, Milan, Italy
| | - Alessandro Repici
- Digestive Endoscopy Unit, Humanitas Research Hospital, Milan, Italy Digestive Endoscopy Unit, Humanitas Unversity, Milan, Italy
| | - Mouen A Khashab
- Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, Baltimore, Maryland.
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