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Savarino EV, Salvador R, Ghisa M, Mari A, Forattini F, Costantini A, De Giorgio R, Zaninotto G. Research gap in esophageal achalasia: a narrative review. Dis Esophagus 2024; 37:doae024. [PMID: 38525929 DOI: 10.1093/dote/doae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
In recent years, new translational evidence, diagnostic techniques, and innovative therapies have shed new light on esophageal achalasia and revamped the attention on this relatively rare motility disorder. This narrative review aims to highlight the most recent progress and the areas where further research is needed. The four senior authors identified five topics commonly discussed in achalasia management: i.e. pathogenesis, role of functional lumen imaging probe in the diagnostic flow chart of achalasia, how to define the outcome of achalasia treatments, how to manage persistent chest pain after the treatment, and if achalasia patients' may benefit from a regular follow-up. We searched the bibliographic databases to identify systematic reviews, meta-analyses, randomized control trials, and original research articles in English up to December 2023. We provide a summary with the most recent findings in each of the five topics and the critical points where to address future research, such as the immune-genetic patterns of achalasia that might explain the transition among the different phenotypes, the need for a validated clinical definition of treatment success, the use of neuromodulators to manage chest pain, and the need for identifying achalasia patients at risk for cancer and who may benefit of long-term follow-up. Although undoubtedly, progress has been made on the definition and management of achalasia, unmet needs remain. Debated aspects range from mechanistic insights, symptoms, objective measure relationships, and accurate clinical responses to therapeutic interventions. Translational research is eagerly awaited to answer these unresolved questions.
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Affiliation(s)
- Edoardo Vincenzo Savarino
- Gastroenterology Unit, Azienda Ospedale Università of Padua, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Renato Salvador
- Chirurgia Generale 1, Azienda Ospedale Università of Padua, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Matteo Ghisa
- Gastroenterology Unit, Azienda Ospedale Università of Padua, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Amir Mari
- Gastroenterology Unit, Nazareth Hospital EMMS, The Azrieli Faculty of Medicine, Bar-Ilan University, Tel Aviv, Israel
| | - Francesca Forattini
- Chirurgia Generale 1, Azienda Ospedale Università of Padua, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Andrea Costantini
- Chirurgia Generale 1, Azienda Ospedale Università of Padua, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Roberto De Giorgio
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
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Boeckxstaens G, Elsen S, Belmans A, Annese V, Bredenoord AJ, Busch OR, Costantini M, Fumagalli U, Smout AJPM, Tack J, Vanuytsel T, Zaninotto G, Salvador R. 10-year follow-up results of the European Achalasia Trial: a multicentre randomised controlled trial comparing pneumatic dilation with laparoscopic Heller myotomy. Gut 2024; 73:582-589. [PMID: 38050085 DOI: 10.1136/gutjnl-2023-331374] [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: 10/20/2023] [Accepted: 11/19/2023] [Indexed: 12/06/2023]
Abstract
OBJECTIVE As achalasia is a chronic disorder, long-term follow-up data comparing different treatments are essential to select optimal clinical management. Here, we report on the 10-year follow-up of the European Achalasia Trial comparing endoscopic pneumodilation (PD) with laparoscopic Heller myotomy (LHM). DESIGN A total of 201 newly diagnosed patients with achalasia were randomised to either a series of PDs (n=96) or LHM (n=105). Patients completed symptom (Eckardt score) and quality-of-life questionnaires, underwent functional tests and upper endoscopy. Primary outcome was therapeutic success defined as Eckardt score <3 at yearly follow-up. Secondary outcomes were the need for retreatment, lower oesophageal sphincter pressure, oesophageal emptying, gastro-oesophageal reflux and the rate of complications. RESULTS After 10 years of follow-up, LHM (n=40) and PD (n=36) were equally effective in both the full analysis set (74% vs 74%, p=0.84) and the per protocol set (74% vs 86%, respectively, p=0.07). Subgroup analysis revealed that PD was superior to LHM for type 2 achalasia (p=0.03) while there was a trend, although not significant (p=0.05), that LHM performed better for type 3 achalasia. Barium column height after 5 min at timed barium oesophagram was significantly higher for patients treated with PD compared with LHM, while other parameters, including gastro-oesophageal reflux, were not different. CONCLUSIONS PD and LHM are equally effective even after 10 years of follow-up with limited risk to develop gastro-oesophageal reflux. Based on these data, we conclude that PD and LHM can both be proposed as initial treatment of achalasia.
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Affiliation(s)
- Guy Boeckxstaens
- Department of Gastroenterology, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Stefanie Elsen
- Department of Gastroenterology, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Ann Belmans
- Interuniversity Centre for Biostatistics and Statistical Bioinformatics, KU Leuven, Leuven, Belgium
| | - Vito Annese
- Department of Gastroenterology, IRCCS San Donato Policlinic, San Donato Milanese, Vita-Salute San Raffaele University, Milano, Italy
| | - Albert J Bredenoord
- Department of Gastroenterology and Hepatology, Amsterdam UMC Locatie Meibergdreef, Amsterdam, The Netherlands
| | - Olivier R Busch
- Department of Surgery, Amsterdam UMC Locatie Meibergdreef, Amsterdam, The Netherlands
| | - Mario Costantini
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padova, Italy
| | - Uberto Fumagalli
- Department of Digestive Surgery, European Institute of Oncology - IRCCS, Milano, Italy
| | - André J P M Smout
- Department of Gastroenterology and Hepatology, Amsterdam UMC Locatie Meibergdreef, Amsterdam, The Netherlands
| | - Jan Tack
- Department of Gastroenterology, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Tim Vanuytsel
- Department of Gastroenterology, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
| | - Giovanni Zaninotto
- Department of Academic Surgery, St Mary's Hospital, Imperial College London, London, UK
| | - Renato Salvador
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padova, Italy
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Rolland S, Paterson W, Bechara R. Achalasia: Current therapeutic options. Neurogastroenterol Motil 2023; 35:e14459. [PMID: 36153803 DOI: 10.1111/nmo.14459] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 07/13/2022] [Accepted: 08/01/2022] [Indexed: 12/31/2022]
Abstract
Achalasia is an esophageal motor disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent peristalsis in the smooth muscle esophageal body. As a result, patients typically experience dysphagia, regurgitation, chest pain, and weight loss. Over the past 10-15 years, there has been a resurgence of interest in the evaluation of therapies for achalasia. Unfortunately, little progress in the development of effective pharmacological treatments has been made. Botulinum toxin injection provides some relief of symptoms in many patients but requires periodic reinjection that may provide progressively less benefit over time. There are now three well-established, safe, and effective therapies for the treatment of achalasia: pneumatic dilation (PD), laparoscopic Heller myotomy (LHM), and peroral endoscopic myotomy (POEM) which can lead to marked symptom improvement in most patients. Each treatment has a specific constellation of risks, benefits, and recurrence rate. The first-line treatment used will depend on patient preference, achalasia subtype, and local expertise. The recent impressive advances in both the art and science of achalasia therapy are explored with a comprehensive review of the various treatment modalities and comparative controlled clinical trials. In addition, key technical pearls of the procedural treatments are demonstrated.
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Affiliation(s)
- Sebastien Rolland
- Division of Gastroenterology, Hôpital Maisonneuve-Rosemont and Université de Montreal, Montreal, Quebec, Canada
| | - William Paterson
- Division of Gastroenterology and GI Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Robert Bechara
- Division of Gastroenterology and GI Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
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Elyasinia F, Sadeghian E, Gapeleh R, Eslamian R, Najjari K, Soroush A. The Role of Fundoplication after Laparoscopic Heller Myotomy in Reducing Postoperative Symptoms in Patients with Achalasia: A Controlled Clinical Trial. Middle East J Dig Dis 2022; 14:437-442. [PMID: 37547508 PMCID: PMC10404100 DOI: 10.34172/mejdd.2022.305] [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: 02/02/2022] [Accepted: 08/18/2022] [Indexed: 08/08/2023] Open
Abstract
Background: Laparoscopic Heller myotomy (LHM) is considered the standard surgical approach in patients newly diagnosed with achalasia worldwide. However, proceeding to fundoplication after LHM remains controversial due to the observed postoperative symptoms, including dysphagia and regurgitation. This study was conducted to compare the postoperatively experienced regurgitation and dysphagia between those undergoing LHM with fundoplication and those with mere LHM. Methods: This four-year controlled clinical trial was performed on adult patients with esophageal type two achalasia, referring to the Shariati Hospital, who gave their written informed consent to enroll. The diagnosis of achalasia was confirmed using manometric assessments. The control group underwent LHM with fundoplication, while the cases received LHM without fundoplication. The validated Achalasia Patients Questionnaire was used for assessing the experienced symptoms pre- and postoperatively. Also, esophagography was used to investigate the alterations of the symptoms pre- and postoperatively. Results: A total of 48 patients were evaluated. 23 were assigned to the case group, while 25 were considered the controls (male to female ratio: 25 to 23). The mean age of the patients was 36.94 years, and the average disease duration was 6.22 years. Cases and controls were matched demographically. There was no statistically significant difference between the cases and controls regarding postoperative active or passive regurgitation or dysphagia to either solids or fluids. Also, the mean score of total clinical symptoms after the surgery was not significantly different between cases and controls. Lastly, esophagography revealed significant improvement regarding all the symptoms postoperatively (P=0.001); however, no statistically significant difference existed in this regard between cases and controls. Conclusion: Our results indicate no significant difference regarding the postoperative achalasia-related symptoms, namely regurgitation and dysphagia, between those patients undergoing LHM with and without fundoplication. However, further studies are required to thoroughly investigate the effects of various fundoplication techniques in relation to all achalasia-related symptoms to confirm these results.
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Affiliation(s)
- Fezzeh Elyasinia
- Department of Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Sadeghian
- Department of Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Gapeleh
- Department of Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Eslamian
- Department of Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Khosrow Najjari
- Department of Surgery, School of Medicine, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Soroush
- Department of Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Shiu SI, Chang CH, Tu YK, Ko CW. The comparisons of different therapeutic modalities for idiopathic achalasia: A systematic review and network meta-analysis. Medicine (Baltimore) 2022; 101:e29441. [PMID: 35713453 PMCID: PMC9276088 DOI: 10.1097/md.0000000000029441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 04/20/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND : Current guidelines recommend per-oral endoscopic myotomy (POEM) and laparoscopic Heller's myotomy (LHM) as first-line treatment of idiopathic achalasia, but the optimum choice between different endoscopic and surgical modalities remains inconclusive. We conducted a network meta-analysis to compare the efficacy of 8 treatments for idiopathic achalasia. MATERIALS AND METHODS : Three major bibliographic databases were reviewed for enrollment of randomized controlled trials between January 2000 and June 2021. We included adults with idiopathic achalasia and compared two or more of eight interventions including botulinum toxin injection (BTI), pneumatic dilation (PD), BTI + PD, LHM without fundoplication, LHM followed with Dor or Toupet fundoplication, and POEM using either the anterior or posterior approach. Our focus was on clinical success rate, postsurgical acid reflux, and moderate-to-severe adverse events. RESULTS : Twenty-four studies involved a total of 1987 participants for analysis. When compared with PD, POEM with anterior approach, POEM with posterior approach, LHM + Toupet, and LHM + Dor were all significantly superior to the other regimens in short-term efficacy, with POEM with anterior approach and LHM + Dor showing better improvement in mid-term efficacy. BTI showed a significantly lower efficacy than PD in both periods. Regarding safety, only LHM without fundoplication was significantly associated with higher acid reflux than PD, while LHM + Toupet, LHM without fundoplication, and LHM + Dor showed a non-significant increase in moderate-to-severe adverse events. CONCLUSIONS : For idiopathic achalasia, we suggest that POEM with an anterior or posterior approach and LHM with Dor or Toupet fundoplication be initially recommended. On the contrary, both LHM without fundoplication and BTI are not recommended as definitive therapy.
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Affiliation(s)
- Sz-Iuan Shiu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Critical Care Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Evidence-based Practice and Policymaking Committee, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chung-Hsin Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yu-Kang Tu
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital and School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chung-Wang Ko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
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Torresan F, Cortellini F, Azzaroli F, Ioannou A, Mularoni C, Shoshan D, Mandolesi D, De Giorgio R, Karamanolis G, Bazzoli F. Graded pneumatic dilation in subtype I and II achalasia: long-term experience in a single center. Ann Gastroenterol 2022; 35:28-33. [PMID: 34987285 PMCID: PMC8713348 DOI: 10.20524/aog.2021.0683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 10/25/2021] [Indexed: 11/11/2022] Open
Abstract
Background The efficacy of pneumatic dilation (PD) in the management of achalasia has yielded variable results. The availability of high-resolution manometry led to the identification of 3 clinically relevant subtypes of achalasia, revealing the poor efficacy of PD in subtype III. Furthermore, PD showed a lower response rate in patients with subtype III compared to laparoscopic Heller myotomy and peroral endoscopic myotomy. This study aimed to investigate the short- and long-term efficacy, safety profile and side effects of PD with a "graded approach" in subtypes I and II achalasia. Methods We enrolled 141 patients (male 67, mean age=66±16.26 years) with achalasia (n=27 subtype I, n=74 subtype II and n=40 subtype III) between January 2010 and July 2020 at St. Orsola University Hospital, Bologna, Italy. We analyzed the data of patients with subtypes I and II, who underwent a graded-protocol PD. Short- and long-term clinical efficacy, complications and gastroesophageal reflux disease (GERD) were recorded. Results One month after graded protocol PD, 100% subtype I and 96.2% subtype II achalasia patients showed clinical remission. The PD procedure was completed without major complications in all patients. In the long-term follow up (median time: 56 months), 95.5% subtype I and 90% subtype II achalasia patients had an Eckardt score ≤3. GERD occurred in 27.7% of all patients. Conclusion A graded-protocol PD applied in the appropriate achalasia subtypes was shown to be a safe and highly effective approach, in both the short- and long-term.
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Affiliation(s)
- Francesco Torresan
- Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy (Francesco Torresan, Fabio Cortellini, Francesco Azzaroli, Daniele Mandolesi, Franco Bazzoli)
| | - Fabio Cortellini
- Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy (Francesco Torresan, Fabio Cortellini, Francesco Azzaroli, Daniele Mandolesi, Franco Bazzoli).,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy (Fabio Cortellini, Francesco Azzaroli, Cecilia Mularoni, Dikla Shoshan, Franco Bazzoli)
| | - Francesco Azzaroli
- Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy (Francesco Torresan, Fabio Cortellini, Francesco Azzaroli, Daniele Mandolesi, Franco Bazzoli).,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy (Fabio Cortellini, Francesco Azzaroli, Cecilia Mularoni, Dikla Shoshan, Franco Bazzoli)
| | - Alexandros Ioannou
- 2 Department of Surgery, Gastroenterology Unit, "Aretaieio" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece (Alexandros Ioannou, George Karamanolis)
| | - Cecilia Mularoni
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy (Fabio Cortellini, Francesco Azzaroli, Cecilia Mularoni, Dikla Shoshan, Franco Bazzoli)
| | - Dikla Shoshan
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy (Fabio Cortellini, Francesco Azzaroli, Cecilia Mularoni, Dikla Shoshan, Franco Bazzoli)
| | - Daniele Mandolesi
- Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy (Francesco Torresan, Fabio Cortellini, Francesco Azzaroli, Daniele Mandolesi, Franco Bazzoli)
| | - Roberto De Giorgio
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy (Roberto De Giorgio)
| | - George Karamanolis
- 2 Department of Surgery, Gastroenterology Unit, "Aretaieio" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece (Alexandros Ioannou, George Karamanolis)
| | - Franco Bazzoli
- Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy (Francesco Torresan, Fabio Cortellini, Francesco Azzaroli, Daniele Mandolesi, Franco Bazzoli).,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy (Fabio Cortellini, Francesco Azzaroli, Cecilia Mularoni, Dikla Shoshan, Franco Bazzoli)
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Dirks RC, Kohn GP, Slater B, Whiteside J, Rodriguez NA, Docimo S, Pryor A, Stefanidis D. Is peroral endoscopic myotomy (POEM) more effective than pneumatic dilation and Heller myotomy? A systematic review and meta-analysis. Surg Endosc 2021; 35:1949-1962. [PMID: 33655443 DOI: 10.1007/s00464-021-08353-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/02/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Achalasia is a rare, chronic, and morbid condition with evolving treatment. Peroral endoscopic myotomy (POEM) has gained considerable popularity, but its comparative effectiveness is uncertain. We aim to evaluate the literature comparing POEM to Heller myotomy (HM) and pneumatic dilation (PD) for the treatment of achalasia. METHODS We conducted a systematic review of comparative studies between POEM and HM or PD. A priori outcomes pertained to efficacy, perioperative metrics, and safety. Internal validity of observational studies and randomized trials (RCTs) was judged using the Newcastle Ottawa Scale and the Cochrane Risk of Bias 2.0 tool, respectively. RESULTS From 1379 unique literature citations, we included 28 studies comparing POEM and HM (n = 21) or PD (n = 8), with only 1 RCT addressing each. Aside from two 4-year observational studies, POEM follow-up averaged ≤ 2 years. While POEM had similar efficacy to HM, POEM treated dysphagia better than PD both in an RCT (treatment "success" RR 1.71, 95% CI 1.34-2.17; 126 patients) and in observational studies (Eckardt score MD - 0.43, 95% CI - 0.71 to - 0.16; 5 studies; I2 21%; 405 patients). POEM needed reintervention less than PD in an RCT (RR 0.19, 95% CI 0.08-0.47; 126 patients) and HM in an observational study (RR 0.33, 95% CI 0.16, 0.68; 98 patients). Though 6-12 months patient-reported reflux was worse than PD in 3 observational studies (RR 2.67, 95% CI 1.02-7.00; I2 0%; 164 patients), post-intervention reflux was inconsistently measured and not statistically different in measures ≥ 1 year. POEM had similar safety outcomes to both HM and PD, including treatment-related serious adverse events. CONCLUSIONS POEM has similar outcomes to HM and greater efficacy than PD. Reflux remains a critical outcome with unknown long-term clinical significance due to insufficient data and inconsistent reporting.
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Affiliation(s)
- Rebecca C Dirks
- Department of Surgery, Indiana University School of Medicine, 545 Barnhill Drive, Emerson Hall 125, Indianapolis, IN, 46202, USA.
| | - Geoffrey P Kohn
- Department of Surgery, Monash University Eastern Health Clinical School, Melbourne, VIC, Australia
| | - Bethany Slater
- Division of Pediatric Surgery, University of Chicago, Chicago, IL, USA
| | - Jake Whiteside
- Department of Surgery, Indiana University School of Medicine, 545 Barnhill Drive, Emerson Hall 125, Indianapolis, IN, 46202, USA
| | - Noe A Rodriguez
- Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Salvatore Docimo
- Department of Surgery, Stony Brook Medicine, Stony Brook, NY, USA
| | - Aurora Pryor
- Department of Surgery, Stony Brook Medicine, Stony Brook, NY, USA
| | - Dimitrios Stefanidis
- Department of Surgery, Indiana University School of Medicine, 545 Barnhill Drive, Emerson Hall 125, Indianapolis, IN, 46202, USA
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Mundre P, Black CJ, Mohammed N, Ford AC. Efficacy of surgical or endoscopic treatment of idiopathic achalasia: a systematic review and network meta-analysis. Lancet Gastroenterol Hepatol 2021; 6:30-38. [DOI: 10.1016/s2468-1253(20)30296-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023]
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