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Bortolotti M. Problems with repairing gut sphincters malfunctions. World J Gastrointest Surg 2024; 16:2396-2408. [PMID: 39220086 PMCID: PMC11362937 DOI: 10.4240/wjgs.v16.i8.2396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 06/24/2024] [Accepted: 07/15/2024] [Indexed: 08/16/2024] Open
Abstract
Correcting a gut sphincter malfunction is a difficult problem. Because each sphincter has two opposite functions, that of closure and opening, repairing one there is a risk of damaging the other. Indeed, widening a narrow sphincter, such as lower esophageal sphincter (LES) and anal sphincter, may cause gastroesophageal reflux and fecal incontinence, respectively, whereas narrowing a wide sphincter, may cause a difficult transit. All the corrective treatments for difficult or retrograde transit concerning LES and anal sphincter with their unwanted consequences have been analyzed and discussed. To overcome the drawbacks of sphincter surgical repairs, researchers have devised devices capable of closing and opening the gut lumen, named artificial sphincters (ASs). Their function is based on various mechanisms, e.g., hydraulic, magnetic, mechanical etc, operating through many complicated components, such as plastic cuffs, balloons, micropumps, micromotors, connecting tubes and wires, electromechanical clamps, rechargeable batteries, magnetic devices, elastic bands, etc. Unfortunately, these structures may facilitate the onset of infections and induce a local fibrotic reaction, which may cause device malfunctioning, whereas the compression of the gut wall to occlude the lumen may give rise to ischemia with erosions and other lesions. Some ASs are already being used in clinical practice, despite their considerable limits, while others are still at the research stage. In view of the adverse events of the ASs mentioned above, we considered applying bioengineering methods to analyze and resolve biomechanical and biological interaction problems with the aim to conceive and build efficient and safe biomimetic ASs.
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Affiliation(s)
- Mauro Bortolotti
- Department of Internal Medicine and Gastroenterology, S Orsola-Malpighi Polyclinic, University of Bologna, Bologna 40138, Italy
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Hajjar A, Verhoeff K, Jogiat U, Mocanu V, Birch DW, Switzer NJ, Wong C, Karmali S. Endoscopic plication compared to laparoscopic fundoplication in the treatment of gastroesophageal reflux disease: a systematic review and meta-analysis. Surg Endosc 2023:10.1007/s00464-023-10202-x. [PMID: 37407715 DOI: 10.1007/s00464-023-10202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/11/2023] [Indexed: 07/07/2023]
Abstract
INTRODUCTION Endoscopic plication offers an alternative to surgical fundoplication for treatment of gastroesophageal reflux disease (GERD). This systematic review and meta-analysis evaluate outcomes following endoscopic plication compared to laparoscopic fundoplication. METHODS AND PROCEDURES Systematic search of MEDLINE, Embase, Scopus, and Web of Science was conducted in September 2022. Study followed PRISMA guidelines. Studies comparing endoscopic plication to laparoscopic fundoplication with n > 5 were included. Primary outcome was PPI cessation, with secondary outcomes including complications, procedure duration, length of stay, change in lower esophageal sphincter (LES) tone, and DeMeester score. RESULTS We reviewed 1544 studies, with five included comparing 105 (46.1%) patients receiving endoscopic plication (ENDO) to 123 (53.9%) undergoing laparoscopic fundoplication (LAP). Average patient age was 47.6 years, with those undergoing plication being younger (46.4 ENDO vs 48.5 LAP). BMI (26.6 kg/m2 ENDO vs 26.2 kg/m2 LAP), and proportion of females (42.9% ENDO vs 37.4% LAP) were similar. Patients undergoing laparoscopic procedures had worse baseline LES pressure (12.8 mmHg ENDO vs 9.0 mmHg LAP) and lower preoperative DeMeester scores (34.6 ENDO vs. 34.1 LAP). The primary outcome demonstrated that 89.2% of patients undergoing laparoscopic fundoplication discontinued PPI compared to 69.4% for those receiving plication. Meta-analysis revealed that plication had significantly reduced odds of PPI discontinuation (OR 0.27, studies = 3, 95% CI 0.12 to 0.64, P = 0.003, I2 = 0%). Secondary outcomes demonstrated that odds of complications (OR 1.46, studies = 4, 95% CI 0.34 to 6.32, P = 0.62, I2 = 0%), length of stay (MD - 1.37, studies = 3, 95% CI - 3.48 to 0.73, P = 0.20, I2 = 94%), and procedure durations were similar (MD 0.78, studies = 3, 95% CI - 39.70 to 41.26, P = 0.97, I2 = 98%). CONCLUSIONS This is the first meta-analysis comparing endoscopic plication to laparoscopic fundoplication. Results demonstrate greater likelihood of PPI discontinuation with laparoscopic fundoplication with similar post-procedural risk.
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Affiliation(s)
- Alexander Hajjar
- Department of Surgery, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada
| | - Kevin Verhoeff
- Department of Surgery, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada.
| | - Uzair Jogiat
- Department of Surgery, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada
| | - Valentin Mocanu
- Department of Surgery, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada
| | - Daniel W Birch
- Department of Surgery, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada
| | - Noah J Switzer
- Centre for Advancement of Surgical Education and Simulation (CASES), Royal Alexandra Hospital, Edmonton, AB, Canada
| | - Clarence Wong
- Division of Gastroenterology, University of Alberta, Edmonton, AB, Canada
| | - Shahzeer Karmali
- Centre for Advancement of Surgical Education and Simulation (CASES), Royal Alexandra Hospital, Edmonton, AB, Canada
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Garg R, Mohammed A, Singh A, Schleicher M, Thota PN, Rustagi T, Sanaka MR. Anti-reflux mucosectomy for refractory gastroesophageal reflux disease: a systematic review and meta-analysis. Endosc Int Open 2022; 10:E854-E864. [PMID: 35692929 PMCID: PMC9187426 DOI: 10.1055/a-1802-0220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/15/2021] [Indexed: 11/01/2022] Open
Abstract
Background and study aims Anti-reflux mucosectomy (ARMS) is an emerging endoscopic treatment for refractory gastroesophageal reflux disease (GERD). We conducted a systematic review and meta-analysis to evaluate the safety and efficacy ARMS in refractory GERD. Methods A comprehensive search of multiple databases (through March 2020) was performed to identify studies that reported outcomes of ARMS for refractory GERD. Outcomes assessed included technical success, clinical response, and adverse events (AEs). Clinical response was defined as discontinuation (complete) or reduction (partial) of proton pump inhibitors post-ARMS at follow up. Results A total of 307 patients (mean age 46.9 [8.1] years, 41.5 % females) were included from 10 studies. The technical success and clinical response rates were 97.7 % (95 % confidence interval [CI], 94.6-99.0) and 80.1 % (95 % CI, 61.6-91.0), respectively. The pooled rate of complete and partial clinical response was 65.3 % (95 % CI, 51.4-77.0) and 21.5 % (95 % CI, 14.2-31.2), respectively. The rate of AEs was 17.2 % (95 % CI, 13.1-22.2) with most common AE being dysphagia/esophageal stricture followed by bleeding with rates of 11.4 % and 5.0 %, respectively. GERD health-related quality of life (GERD-HRQL) (mean difference [MD] = 14.9, P < 0.001), GERD questionnaire (GERD-Q) (MD = 4.85, P < 0.001) and mean acid exposure time (MD = 2.39, P = 0.01) decreased significantly post-ARMS as compared to pre-procedure. There was no difference in terms of clinical response and AEs between ARMS and ARMS with banding on subgroup analysis. Conclusions ARMS is a safe and effective procedure for treatment of refractory GERD with high rates of clinical response, acceptable safety profile and significant improvement in GERD-related quality of life. Prospective studies are needed to validate our findings.
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Affiliation(s)
- Rajat Garg
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute; Cleveland Clinic, Cleveland, Ohio, United States
| | - Abdul Mohammed
- Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, United States
| | - Amandeep Singh
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute; Cleveland Clinic, Cleveland, Ohio, United States
| | - Mary Schleicher
- Cleveland Clinic Alumni library, Cleveland Clinic, Cleveland, Ohio, United States
| | - Prashanthi N. Thota
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute; Cleveland Clinic, Cleveland, Ohio, United States
| | - Tarun Rustagi
- Department of Gastroenterology and Hepatology, University of New Mexico, Albuquerque, New Mexico, United States
| | - Madhusudhan R Sanaka
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute; Cleveland Clinic, Cleveland, Ohio, United States
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Kalapala R, Singla N, Reddy DN. Endoscopic management of gastroesophageal reflux disease: Panacea for proton pump inhibitors dependent/refractory patients. Dig Endosc 2022; 34:687-699. [PMID: 34651353 DOI: 10.1111/den.14169] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 02/08/2023]
Abstract
Endoscopic therapies in proton pump inhibitors (PPI) dependent/refractory gastroesophageal reflux disease (GERD) are increasingly indicated in patients who are not suitable or willing for chronic medical therapy and surgical fundoplication. Currently available endoluminal anti-reflux procedures include radiofrequency therapy (Stretta), suturing/plication and mucosal ablation/resection techniques at the gastroesophageal junction. Meticulous work up and patient selection results in a favorable outcome with these endoscopic therapies, especially the quality of life and partially the PPI independence. Stretta can be considered in patients with PPI refractory GERD and might have a role in patients with reflux hypersensitivity and functional heartburn. Endoscopic fundoplication using the Esophyx device and the GERD-X device have strong evidence (multiple randomized controlled trials) in patients with small hiatus hernia and high volume reflux episodes. Mucosal resection/ablation techniques like anti-reflux mucosectomy and anti-reflux mucosal ablation have shown promising results but need long term follow-up studies to prove their efficacy. The subset of PPI dependent GERD population will benefit from endoscopic therapies and the future of endoscopic management of GERD looks promising.
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Affiliation(s)
| | - Neeraj Singla
- Asian Institute of Gastroenterology, Hyderabad, India
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Rodríguez de Santiago E, Albéniz E, Estremera-Arevalo F, Teruel Sanchez-Vegazo C, Lorenzo-Zúñiga V. Endoscopic anti-reflux therapy for gastroesophageal reflux disease. World J Gastroenterol 2021; 27:6601-6614. [PMID: 34754155 PMCID: PMC8554403 DOI: 10.3748/wjg.v27.i39.6601] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/01/2021] [Accepted: 08/31/2021] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal reflux disease has an increasing incidence and prevalence worldwide. A significant proportion of patients have a suboptimal response to proton pump inhibitors or are unwilling to take lifelong medication due to concerns about long-term adverse effects. Endoscopic anti-reflux therapies offer a minimally invasive option for patients unwilling to undergo surgical treatment or take lifelong medication. The best candidates are those with a good response to proton pump inhibitors and without a significant sliding hiatal hernia. Transoral incisionless fundoplication and nonablative radiofrequency are the techniques with the largest body of evidence and that have been tested in several randomized clinical trials. Band-assisted ligation techniques, anti-reflux mucosectomy, anti-reflux mucosal ablation, and new plication devices have yielded promising results in recent noncontrolled studies. Nonetheless, the role of endoscopic procedures remains controversial due to limited long-term and comparative data, and no consensus exists in current clinical guidelines. This review provides an updated summary focused on the patient selection, technical details, clinical success, and safety of current and future endoscopic anti-reflux techniques.
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Affiliation(s)
- Enrique Rodríguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
| | - Eduardo Albéniz
- Endoscopy Unit, Gastroenterology Department, Hospital Universitario de Navarra. Gastrointestinal Endoscopy Research Unit, Navarrabiomed Biomedical Research Center. Pamplona, Spain
| | - Fermin Estremera-Arevalo
- Endoscopy Unit, Gastroenterology Department, Hospital Universitario de Navarra. Gastrointestinal Endoscopy Research Unit, Navarrabiomed Biomedical Research Center. Pamplona, Spain
| | - Carlos Teruel Sanchez-Vegazo
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain
| | - Vicente Lorenzo-Zúñiga
- Endoscopy Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
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Kushner BS, Awad MM, Mikami DJ, Chand BB, Wai CJ, Murayama KM. Endoscopic treatments for GERD. Ann N Y Acad Sci 2020; 1482:121-129. [PMID: 33063344 DOI: 10.1111/nyas.14511] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 12/11/2022]
Abstract
Gastroesophageal reflux disease (GERD) is a condition with increasing prevalence and morbidity in the United States and worldwide. Despite advances in medical and surgical therapy over the last 30 years, gaps remain in the therapeutic profile of options. Flexible upper endoscopy offers the promise of filling in these gaps in a potentially minimally invasive approach. In this concise review, we focus on the plethora of endoluminal therapies available for the treatment of GERD. Therapies discussed include injectable agents, electrical stimulation of the lower esophageal sphincter, antireflux mucosectomy, radiofrequency ablation, and endoscopic suturing devices designed to create a fundoplication. As new endoscopic treatments become available, we come closer to the promise of the incisionless treatment of GERD. The known data surrounding the indications, benefits, and risks of these historical, current, and emerging approaches are reviewed in detail.
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Affiliation(s)
- Bradley S Kushner
- Department of Surgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Michael M Awad
- Department of Surgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Dean J Mikami
- Department of Surgery, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Bipan B Chand
- Department of Surgery, Stritch School of Medicine, Loyola University Chicago, Chicago, Illinois
| | - Christina J Wai
- Department of Surgery, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Kenric M Murayama
- Department of Surgery, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
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Abstract
PURPOSE OF REVIEW Nearly, a third of patients with medically refractory gastroesophageal reflux disease (GERD) will desire an additional nonsurgical treatment option. Recently, endoscopic therapy has been reintroduced as a minimally invasive antireflux barrier treatment, after addressing prior efficacy and safety concerns. Over the last two decades, additional experience and new technologies have resulted in devices and protocols with favorable short-term outcomes and safety profiles. The current literature in endoscopic antireflux therapies covers new devices, long-term follow-up data and further safety experience. This review discusses the endoscopic antireflux devices on the market and most recent studies in this area. RECENT FINDINGS Quality of life and reflux symptom score improvement is observed in 73-90% of patients through a 36-48 month follow-up period, with 41-77% remaining off all reflux medicines. Composite data from several thousand cases indicate a low rate (0.93-2.4%) of serious complications and no late adverse effects, including gas-bloat syndrome. SUMMARY In this review, we describe the four endoscopic antireflux devices on market and summarize the current data in the literature. The short and long-term data demonstrate durable symptom improvement and favorable safety profile. Endoscopic antireflux treatment should be considered in the management of GERD.
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Rouphael C, Padival R, Sanaka MR, Thota PN. Endoscopic Treatments of GERD. ACTA ACUST UNITED AC 2018; 16:58-71. [DOI: 10.1007/s11938-018-0170-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Triadafilopoulos G. Endoscopic Options for Gastroesophageal Reflux: Where Are We Now and What Does the Future Hold? Curr Gastroenterol Rep 2017; 18:47. [PMID: 27424219 DOI: 10.1007/s11894-016-0521-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Early in the twenty-first century, novel endoscopic techniques were introduced for the management of gastroesophageal reflux disease, providing minimally invasive ways to eliminate pharmacologic acid inhibition and avoid the need for anti-reflux surgery. These techniques do not significantly alter the anatomy of the gastroesophageal junction, minimizing short- and long-term adverse effects, such as dysphagia and bloating. After extensive clinical testing, many endoscopic therapies were abandoned due to either lack of durable efficacy or unfavorable safety profile. Today, only four such therapies remain clinically available, each with variable levels of clinical validation and market penetration. This review will provide an assessment of these endoscopic therapies, highlighting their respective strengths and weaknesses and their present and future applicability to patients with gastroesophageal reflux disease.
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Affiliation(s)
- George Triadafilopoulos
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, M-211, Stanford, CA, 94306, USA.
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Subramanian CR, Triadafilopoulos G. Refractory gastroesophageal reflux disease. Gastroenterol Rep (Oxf) 2015; 3:41-53. [PMID: 25274499 PMCID: PMC4324866 DOI: 10.1093/gastro/gou061] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 07/26/2014] [Accepted: 07/31/2014] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is a condition that develops when the reflux of stomach contents into the esophagus causes troublesome symptoms, esophageal injury, and/or complications. Use of proton pump inhibitors (PPI) remains the standard therapy for GERD and is effective in most patients. Those whose symptoms are refractory to PPIs should be evaluated further and other treatment options should be considered, according to individual patient characteristics. Response to PPIs could be total (no symptoms), partial (residual breakthrough symptoms), or absent (no change in symptoms). Patients experiencing complete response do not usually need further management. Patients with partial response can be treated surgically or by using emerging endoscopic therapies. Patients who exhibit no response to PPI need further evaluation to rule out other causes.
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Affiliation(s)
- Charumathi Raghu Subramanian
- Internal Medicine, Guthrie Clinic, Sayre, PA, USA and Division of Gastroenterology, Stanford University School of Medicine, Stanford, CA, USA
| | - George Triadafilopoulos
- Internal Medicine, Guthrie Clinic, Sayre, PA, USA and Division of Gastroenterology, Stanford University School of Medicine, Stanford, CA, USA
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Reavis KM, Perry KA. Transoral incisionless fundoplication for the treatment of gastroesophageal reflux disease. Expert Rev Med Devices 2015; 11:341-50. [PMID: 24918903 DOI: 10.1586/17434440.2014.925394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gastroesophageal reflux disease (GERD) is a common and costly chronic medical condition affecting millions of patients. It is associated with substantial morbidity and negatively impacts quality of life. Reflux of gastric contents into the esophagus damages the esophageal mucosa and is associated with conditions including esophagitis and esophageal stricture. While GERD is most commonly seen in Western populations, changes in dietary patterns and the global increase in obesity have led to a pronounced increase in its prevalence worldwide. Medical and surgical GERD therapies are costly and pose considerable side effects, leading many to pursue effective endoscopic treatment options. Transoral incisionless fundoplication is an endoluminal procedure that offers patients a minimally invasive treatment option with the potential to eliminate the need for medical acid suppression with a low risk of side effects.
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Affiliation(s)
- Kevin M Reavis
- Esophageal and Foregut Surgery, Division of Gastrointestinal and Minimally Invasive Surgery, The Oregon Clinic, 4805 NE Glisan Street, Ste 6N60, Portland, OR 97213, USA
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Abstract
There has been a marked decline over the last several years in drug development for gastroesophageal reflux disease and specifically for nonerosive reflux disease (NERD), despite there being many areas of unmet need. In contrast, we have seen a proliferation, during the same period of time, in development of novel, nonmedical therapeutic strategies for NERD using cutting-edge technology. Presently, compliance and lifestyle modifications are readily available noninvasive therapeutic interventions for NERD. Other nonmedical therapies include, the Stretta procedure, transoral incisionless fundoplication, and the magnetic sphincter augmentation device (LINX). Antireflux surgery, in experienced hands, has been repeatedly shown to be efficacious in resolving NERD-related symptoms. Psychological therapeutic interventions and alternative medicine techniques, such as acupuncture, continue to show promise, especially in NERD patients who failed antireflux treatment.
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