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Kasugai K, Ogasawara N. Gastroesophageal Reflux Disease: Pathophysiology and New Treatment Trends. Intern Med 2024; 63:1-10. [PMID: 36927966 PMCID: PMC10824640 DOI: 10.2169/internalmedicine.1551-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 02/02/2023] [Indexed: 03/15/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is caused by the reflux of gastric contents into the esophagus due to a decline in esophageal clearance and anti-reflux barrier mechanisms. Mucosal injury is caused by a combination of gastric juice directly damaging the esophageal mucosa and the immune and inflammatory mechanism in which inflammatory cytokines released from the esophageal mucosal epithelium cause neutrophil migration, triggering inflammation. Gastric secretion inhibitors are the first-line treatment for GERD, but they can be combined with prokinetic agents and Chinese herbal remedies. However, pharmacotherapy cannot improve anatomical problems or prevent physical causes of GERD, such as reflux of non-acidic contents. Therefore, surgery can be warranted, depending on the pathology. Intraluminal endoscopic therapy, which is both less invasive and more effective than surgery, was recently developed and applied in Europe and the United States. In Japan, intraluminal endoscopic therapies, such as anti-reflux mucosectomy, anti-reflux mucosal ablation, and endoscopic submucosal dissection, for GERD have been independently developed.
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Affiliation(s)
- Kunio Kasugai
- Department of Internal Medicine, Division of Gastroenterology, Aichi Medical University, Japan
| | - Naotaka Ogasawara
- Department of Internal Medicine, Division of Gastroenterology, Aichi Medical University, Japan
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Ota K, Takeuchi T, Higuchi K, Sasaki S, Mori Y, Tanaka H, Hakoda A, Sugawara N, Iwatsubo T, Nishikawa H. Frontiers in Endoscopic Treatment for Gastroesophageal Reflux Disease. Digestion 2023; 105:5-10. [PMID: 37591209 DOI: 10.1159/000533200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 07/05/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND The 3rd edition of the evidence-based clinical practice guidelines for gastroesophageal reflux disease (GERD) 2021 from the Japanese Society of Gastroenterology states that the treatment strategy for potassium-competitive acid blocker (PCAB)-refractory GERD remains unclear. Furthermore, even if GERD improves with the administration of an acid secretion inhibitor, it is feared that GERD may flare up after discontinuation of the drug, resulting in some cases in which patients are forced to take vonoprazan semipermanently (the so-called PCAB-dependent cases). From a global perspective, PCAB is not yet used in all countries and regions, and measures that can be taken now for cases in which a conventional proton pump inhibitor (PPI) is inadequately effective need to be devised. SUMMARY Endoscopic treatment for GERD may be effective in cases where conventional proton pump inhibitors are ineffective; however, there are insufficient long-term studies to corroborate this, and its cost effectiveness is unknown. Other treatment options for PCAB or PPI-refractory GERD include surgical procedures (Nissen and Toupet operations), which have a longer history than endoscopic treatment for GERD. However, their long-term results are not as good as those of acid secretion inhibitors, and they are not cost effective. Endoscopic treatment for GERD may fill gaps in inadequate surgical treatment. In April 2022, endoscopic anti-reflux mucosal resections (ARMS [anti-reflux mucosectomy] and ESD-G [endoscopic submucosal dissection for GERD]) were approved for reimbursement, making endoscopic treatment of GERD possible throughout Japan. KEY MESSAGES It is important to identify the background factors in cases in which endoscopic treatments are effective.
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Affiliation(s)
- Kazuhiro Ota
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Toshihisa Takeuchi
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Kazuhide Higuchi
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Shun Sasaki
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Yosuke Mori
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Hironori Tanaka
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Akitoshi Hakoda
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Noriaki Sugawara
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Taro Iwatsubo
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Hiroki Nishikawa
- Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
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Shiotani A, Kasugai K. Pharynx and esophagus: Esophageal benign diseases. Dig Endosc 2022; 34 Suppl 2:31-35. [PMID: 34486771 DOI: 10.1111/den.14109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/09/2021] [Accepted: 08/18/2021] [Indexed: 02/08/2023]
Affiliation(s)
- Akiko Shiotani
- Division of Gastroenterology, Department of Internal Medicine, Kawasaki Medical School, Okayama, Japan
| | - Kunio Kasugai
- Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Aichi, Japan
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Mann R, Gajendran M, Perisetti A, Goyal H, Saligram S, Umapathy C. Advanced Endoscopic Imaging and Interventions in GERD: An Update and Future Directions. Front Med (Lausanne) 2021; 8:728696. [PMID: 34912815 PMCID: PMC8666712 DOI: 10.3389/fmed.2021.728696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/29/2021] [Indexed: 12/12/2022] Open
Abstract
Gastroesophageal reflux disease (GERD) is one of the most common gastrointestinal diseases encountered in primary care and gastroenterology clinics. Most cases of GERD can be diagnosed based on clinical presentation and risk factors; however, some patients present with atypical symptoms, which can make diagnosis difficult. An esophagogastroduodenoscopy can be used to assist in diagnosis of GERD, though only half of these patients have visible endoscopic findings on standard white light endoscopy. This led to the development of new advanced endoscopic techniques that enhanced the diagnosis of GERD and related complications like squamous cell dysplasia, Barrett's esophagus, and early esophageal adenocarcinoma. This is conducted by improved detection of subtle irregularities in the mucosa and vascular structures through optical biopsies in real-time. Management of GERD includes lifestyle modifications, pharmacological therapy, endoscopic and surgical intervention. Minimally invasive endoscopic intervention can be an option in selected patients with small hiatal hernia and without complications of GERD. These endoscopic interventions include endoscopic fundoplication, endoscopic mucosal resection techniques, ablative techniques, creating mechanical barriers, and suturing and stapling devices. As these new advanced endoscopic techniques are emerging, data surrounding the indications, advantages and disadvantages of these techniques need a thorough understanding.
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Affiliation(s)
- Rupinder Mann
- Department of Internal Medicine, Saint Agnes Medical Center, Fresno, CA, United States
| | - Mahesh Gajendran
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, United States
| | - Abhilash Perisetti
- Department of Gastroenterology and Hepatology, The University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Department of Gastroenterology and Advanced Endoscopy, Parkview Health, Fort Wayne, IN, United States
| | - Hemant Goyal
- The Wright Center for Graduate Medical Education, Scranton, PA, United States
| | - Shreyas Saligram
- Division of Gastroenterology, Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX, United States
| | - Chandraprakash Umapathy
- Division of Gastroenterology, Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX, United States
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Niikura R, Yamada A, Hirata Y, Hayakawa Y, Takahashi A, Shinozaki T, Takeuchi Y, Fujishiro M, Koike K. Efficacy of Vonoprazan for Gastroesophageal Reflux Symptoms in Patients with Proton Pump Inhibitor-resistant Non-erosive Reflux Disease. Intern Med 2018; 57:2443-2450. [PMID: 29607951 PMCID: PMC6172555 DOI: 10.2169/internalmedicine.0492-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 01/24/2018] [Indexed: 12/20/2022] Open
Abstract
Objective Clinically, patients with proton pomp inhibitor (PPI)-resistant gastroesophageal reflux disease (GERD) are very challenging to treat. The aim of this study was to determine the rates of symptom relief and adverse events among PPI-resistant GERD patients that changed their therapy from a PPI to vonoprazan. Methods Patients with severe gastroesophageal reflux symptoms (total GERD-Q score ≥8) without endoscopic findings of mucosal breaks who changed their medication from a PPI to vonoprazan during a 12-week period from 2015 to 2016 at 2 hospitals were selected. The primary outcome was the self-reported relief of gastroesophageal reflux symptoms. The odds ratio (OR) for the improvement of symptoms was calculated based on an exact binomial distribution using a matched-pair analysis. The secondary outcome was the GERD-Q score and adverse events. Results Twenty-six patients (6 men) with a mean age of 67.5 years were analyzed. After the therapy was changed from a PPI to vonoprazan, 18 patients (69.2%) reported an improvement, 6 (23.1%) reported no change, and 2 (7.7%) reported an exacerbation of symptoms. A change in therapy was significantly associated with improved self-reported symptoms (OR 9.0, p<0.001). The mean total GERD-Q score during vonoprazan treatment was significantly lower than that during PPI therapy (11.96 vs. 8.92). There were no significant differences in the incidence of adverse events between the therapies. Conclusion Changing the medication from a PPI to vonoprazan was significantly associated with an improvement in gastroesophageal reflux symptoms. Vonoprazan is one of the most promising treatment options for patients with PPI-resistant GERD.
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Affiliation(s)
- Ryota Niikura
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Atsuo Yamada
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yoshihiro Hirata
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yoku Hayakawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
| | - Akihiro Takahashi
- Department of Gastroenterology, The Japan Association for Development of Community Medicine Nerimahikarigaoka Hospital, Japan
| | - Tomohiro Shinozaki
- Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yoshinori Takeuchi
- Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
- Department of Endoscopy and Endoscopic Surgery, The University of Tokyo Hospital, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Japan
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Lou Z. It is vital to identify the underlying cause of chronic laryngopharyngeal neuropathy. Am J Otolaryngol 2018; 39:74-75. [PMID: 29132730 DOI: 10.1016/j.amjoto.2017.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
Affiliation(s)
- Zhengcai Lou
- Department of Otorhinolaryngology, the affiliated Yiwu Hospital, Yiwu City, 322000, Zhejiang Province, China.
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