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Nakai T, Abe H, Tanaka S, Kawara F, Toyonaga T, Sakaguchi H, Ueda C, Ikezawa N, Tsuda K, Urakami S, Kodama Y. Risk-scoring system for predicting challenging cases of peroral endoscopic myotomy. Dig Endosc 2023; 35:729-735. [PMID: 36571213 DOI: 10.1111/den.14508] [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: 07/07/2022] [Accepted: 12/22/2022] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Peroral endoscopic myotomy (POEM) is an effective treatment for esophageal motility disorders including achalasia and its variants. However, some surgeons have encountered challenging cases. This study aimed to develop a risk-scoring system to predict challenging cases of POEM. METHODS Consecutive patients who underwent POEM between April 2015 and March 2020 at our hospital were included in this single-center retrospective study. Challenging cases of POEM were defined as patients with any of the following: (i) procedure time ≥90 min; (ii) mucosal perforation; (iii) pneumothorax; and (iv) major bleeding. A risk-scoring system for predicting challenging cases was developed based on multivariate logistic regression and internal validation was performed using the bootstrap method. Clinical usefulness was evaluated using a decision curve analysis. RESULTS Of the 467 patients, 59 (12.6%) had challenging POEM. A risk-scoring system consisted of four variables: duration of symptoms ≥5 years (assigned score, 1 point), antithrombotics use (1 point), manometric diagnosis of achalasia variants (2 points), and dilation grade 3 (2 points). Our scoring system showed satisfactory discrimination (area under the receiver operating characteristic curve, 0.69; 95% confidence interval [CI] 0.61-0.77) and calibration (slope, 0.99; 95% CI 0.65-1.35). The decision curve analysis demonstrated its clinical usefulness. CONCLUSIONS We established a risk-scoring system to predict challenging cases of POEM. This scoring system may aid the selection of patients who require treatment from experienced surgeons.
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Affiliation(s)
- Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Konan Medical Center, Hyogo, Japan
| | | | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Kazunori Tsuda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
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Sato H, Nishikawa Y, Abe H, Shiwaku H, Shiota J, Sato C, Sakae H, Ominami M, Hata Y, Fukuda H, Ogawa R, Nakamura J, Tatsuta T, Ikebuchi Y, Yokomichi H, Terai S, Inoue H. Esophageal carcinoma in achalasia patients managed with endoscopic submucosal dissection and peroral endoscopic myotomy: Japan Achalasia Multicenter Study. Dig Endosc 2022; 34:965-973. [PMID: 34787940 DOI: 10.1111/den.14197] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/15/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Indications for peroral endoscopic myotomy (POEM) and endoscopic submucosal dissection (ESD) in patients with achalasia concomitant with esophageal carcinoma (EC) are unclear. This study aimed to clarify the role of POEM in cases of achalasia concomitant with EC and to elucidate the indications for ESD and efficient surveillance for EC. METHODS We conducted a multicenter cohort study at 14 hospitals in Japan, including 3707 cases of achalasia-related esophageal motility disorders (EMDs). Factors contributing to EC risk, the characteristics of EC, and clinical outcomes of POEM/ESD were analyzed. RESULTS In patients undergoing POEM, screening and surveillance endoscopy throughout a 1-year period resulted in diagnosis of 72.1% new EC cases. Of 62 patients with 123 ECs, 40.3% had multiple or metachronous lesions within 37.5 months. EC was predominantly observed in the middle thoracic esophagus (58.5%) and posteriorly (73.2%). POEM had comparable safety and efficacy in cases of concomitant EC even after ESD. Endoscopic en bloc resection was performed in 95.8% and 89.3% of ECs diagnosed before and after POEM, respectively (P = 0.351); however, ESD on the POEM-line was impaired by fibrosis. Multivariate analysis revealed risk factors for EC, including regular alcohol consumption, a history of smoking, advanced age, and extended disease duration. Alcohol intake and smoking had a synergistic effect on EC development. CONCLUSIONS Screening and surveillance of POEM help in detecting EC. ESD is feasible in achalasia, although on the POEM-line is challenging. Surveillance endoscopy for EC is recommended for cases with specific risks and a history of ECs.
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Affiliation(s)
- 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
| | - Yohei Nishikawa
- 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, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Department of Surgery, Tohoku University Graduate 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
| | - Jun Nakamura
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, 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
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
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Combination of Symptom Profile, Endoscopic Findings, and Esophageal Mucosal Histopathology Helps to Differentiate Achalasia from Refractory Gastroesophageal Reflux Disease. Diagnostics (Basel) 2021; 11:diagnostics11122347. [PMID: 34943584 PMCID: PMC8700273 DOI: 10.3390/diagnostics11122347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 11/17/2022] Open
Abstract
Achalasia, a rare primary esophageal motility disorder, is often misdiagnosed as refractory gastroesophageal reflux disease (GERD). This study is aimed to identify the clinical and histopathologic features that may help to differentiate these two entities. Patients with untreated achalasia and those with refractory reflux symptoms despite ≥8 weeks of proton-pump inhibitor treatment were enrolled prospectively. All patients underwent validated symptom questionnaires, esophagogastroduodenoscopy with biopsy, and high-resolution impedance manometry (HRIM). Histopathology of esophageal mucosa was compared based on four pre-determined histological criteria: basal cell hyperplasia or papillae elongation, eosinophilic infiltration, petechiae formation, and hypertrophy of the muscularis mucosae (MM). Compared with the GERD patients, patients with achalasia had similar reflux symptoms, but higher Eckardt scores, fewer erosive esophagitis and hiatal hernia, more esophageal food retention on endoscopy, and higher prevalence of hypertrophy of the MM and petechiae formation on histopathology. Multivariate logistic regression based on Eckardt score ≥4, normal esophagogastric junction morphology or esophageal food retention, and coexistence of petechiae formation and hypertrophy of the MM, established the best prediction model for achalasia. Therefore, combination of routinely accessible variables, including Eckardt score, endoscopic features, and histopathology obtained via esophageal mucosal biopsy, may provide an earlier identification of achalasia.
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Ueda C, Abe H, Tanaka S, Kawara F, Toyonaga T, Ariyoshi R, Sako T, Sakaguchi H, Ikezawa N, Urakami S, Nakai T, Kodama Y. Peroral endoscopic myotomy for advanced achalasia with megaesophagus. Esophagus 2021; 18:922-931. [PMID: 33837865 DOI: 10.1007/s10388-021-00833-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/23/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND The outcomes of peroral endoscopic myotomy for advanced achalasia are not well known. This study aimed to evaluate the outcomes of peroral endoscopic myotomy for achalasia with megaesophagus, which is one of the characteristics of advanced achalasia. METHODS In total, 234 patients with achalasia who underwent peroral endoscopic myotomy in our hospital from April 2015 to March 2019 were included in this retrospective observational study. Megaesophagus was defined as a maximum esophageal diameter of 6 cm or more. Outcomes, including clinical success (Eckardt score ≤ 3 without retreatment) at the 1-year follow-up, technical success, and perioperative complications, were investigated and compared between patients with and without megaesophagus. RESULTS Eleven patients (4.7%) were diagnosed with megaesophagus. The clinical success rate achieved was 63.6% in patients with megaesophagus, with a significant decrease in the Eckardt score (6 vs. 2, p = 0.003) and integrated relaxation pressure (28 mmHg vs. 9 mmHg, p = 0.028). The technical success rate was 100%. However, patients with megaesophagus had a significantly lower clinical success rate than those without megaesophagus (63.6% vs. 96.0%, p = 0.002). Furthermore, patients with megaesophagus had significantly higher rates of major adverse events than those without megaesophagus (18.2% vs. 2.7%, p = 0.048). CONCLUSIONS Peroral endoscopic myotomy improved achalasia-related symptoms, and this was technically feasible in patients with megaesophagus. However, the clinical success rate was somewhat low, and the rate of major adverse events was high. Therefore, peroral endoscopic myotomy should be carefully performed for advanced achalasia with megaesophagus.
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Affiliation(s)
- Chise Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hirofumi Abe
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Shinwa Tanaka
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Fumiaki Kawara
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takashi Toyonaga
- Division of Endoscopic Medicine, Kobe University Hospital, Kobe, Japan
| | - Ryusuke Ariyoshi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Tomoya Sako
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hiroya Sakaguchi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Nobuaki Ikezawa
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Satoshi Urakami
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Tatsuya Nakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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Dale Z, Nazer B. Pulmonary vein isolation in a patient with achalasia and megaesophagus. HeartRhythm Case Rep 2019; 5:520-523. [PMID: 31700797 PMCID: PMC6831765 DOI: 10.1016/j.hrcr.2019.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Sato H, Yokomichi H, Takahashi K, Tominaga K, Mizusawa T, Kimura N, Kawata Y, Terai S. Epidemiological analysis of achalasia in Japan using a large-scale claims database. J Gastroenterol 2019; 54:621-627. [PMID: 30607612 DOI: 10.1007/s00535-018-01544-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 12/26/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Achalasia is a well-known esophageal motility disorder, but epidemiological studies in Japan are lacking. We investigated the incidence and period prevalence of achalasia in Japan, including the rate of coexistence of esophageal carcinoma, and evaluated treatment trends. METHODS To estimate the nationwide number of patients with achalasia, a large-scale insurance claims database from 2005 to 2017 were used for our analyses. Patients with achalasia and coexistence of esophageal carcinoma were identified based on the diagnosis code registered. Interventional treatment was also evaluated. RESULTS Of the total 5,493,650 populations, 385 were diagnosed with primary achalasia. The incidence was calculated as 0.81-1.37 per 100,000 person-years (male-to-female ratio was almost 1; mean age at diagnosis was 43.3 ± 14.4 years). The period prevalence was 7.0 per 100,000 persons. There were statistically significant trends of increase in the incidence and period prevalence over age groups (all p values < 0.0001). Four men with achalasia developed esophageal carcinoma, and the incidence of esophageal carcinoma with achalasia was estimated as 0.25 per 100 person-years. With regard to intervention, esophageal dilation was performed as a first treatment in 64.7% of patients, with repeat intervention required in 56.9% of these. The proportion of patients treated using peroral endoscopic myotomy (POEM) increased annually to 41.1% in 2017. CONCLUSIONS In Japan, the incidence and period prevalence of achalasia is comparable to that in other countries. The absolute risk of esophageal carcinoma is rather low. Esophageal dilation has been the mainstay of achalasia treatment, and the role of POEM has increased annually.
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Affiliation(s)
- Hiroki Sato
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan.
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Chuo City, Yamanashi, Japan
| | - Kazuya Takahashi
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
| | - Kentaro Tominaga
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
| | - Takeshi Mizusawa
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
| | - Naruhiro Kimura
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
| | - Yuzo Kawata
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, 757-1, Asahimachidori, Chuo-ku, Niigata, Niigata, 951-8510, Japan
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Nesteruk K, Spaander MCW, Leeuwenburgh I, Peppelenbosch MP, Fuhler GM. Achalasia and associated esophageal cancer risk: What lessons can we learn from the molecular analysis of Barrett's-associated adenocarcinoma? Biochim Biophys Acta Rev Cancer 2019; 1872:188291. [PMID: 31059738 DOI: 10.1016/j.bbcan.2019.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/02/2019] [Accepted: 04/29/2019] [Indexed: 02/08/2023]
Abstract
Idiopathic achalasia and Barrett's esophagus (BE) are preneoplastic conditions of the esophagus. BE increases the risk of esophageal adenocarcinoma (EAC), while achalasia is associated with both EAC and esophageal squamous cell carcinoma (ESCC). However, while the molecular mechanisms underlying the transformation of esophageal epithelial cells in BE are relatively well characterized, less is known regarding these processes in achalasia. Nevertheless, both conditions are associated with chronic inflammation and BE can occur in achalasia patients, and it is likely that similar processes underlie cancer risk in both diseases. The present review will discuss possible lessons that we can learn from the molecular analysis of BE for the study of achalasia-associated cancer and contrast findings in BE with those in achalasia. First, we will describe cellular fate during development of BE, EAC, and ESCC, and consider the inflammatory status of the epithelial barrier in BE and achalasia in terms of its contribution to carcinogenesis. Next, we will summarize current data on genetic alterations and molecular pathways involved in these processes. Lastly, the plausible role of the microbiota in achalasia-associated carcinogenesis and its contribution to abnormal lower esophageal sphincter (LES) functioning, the maintenance of chronic inflammatory status and influence on the esophageal mucosa through carcinogenic by-products, will be discussed.
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Affiliation(s)
- K Nesteruk
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - M C W Spaander
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - I Leeuwenburgh
- Department of Gastroenterology and Hepatology, Franciscus Gasthuis, Rotterdam, the Netherlands
| | - M P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - G M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands..
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Zikos TA, Clarke JO, Triadafilopoulos G, Regalia KA, Sonu IS, Fernandez-Becker NQ, Nandwani MC, Nguyen LA. A Positive Correlation Between Gastric and Esophageal Dysmotility Suggests Common Causality. Dig Dis Sci 2018; 63:3417-3424. [PMID: 29946871 DOI: 10.1007/s10620-018-5175-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/19/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Gastric and esophageal dysmotility syndromes are some of the most common motility diagnoses, but little is known about their interrelationship. AIMS The aim of our study was to determine if a correlation exists between gastric and esophageal dysmotility syndromes. METHODS We reviewed the records of all patients who underwent both solid gastric emptying scintigraphy (GES) and high-resolution esophageal manometry (HRM) within a 2 year period, with both done between August 2012 and August 2017. All GESs were classified as either rapid, normal, or delayed. All HRMs were classified according to the Chicago Classification 3.0. Correlations were assessed using Fisher's exact test and multiple logistic regression. RESULTS In total, 482 patients met inclusion criteria. Of patients with a normal, delayed, and rapid GES, 53.1, 64.5, and 77.3% had an abnormal HRM, respectively (p < 0.05 vs. normal GES). Likewise, patients with an abnormal HRM were more likely to have an abnormal GES (54.9 vs. 41.8%, p = 0.005). Multiple logistic regression showed abnormal GES [odds ratio (OR) 2.14], age (OR 1.013), scleroderma (OR 6.29), and dysphagia (OR 2.63) were independent predictors of an abnormal HRM. Likewise, an abnormal HRM (OR 2.11), diabetes (OR 1.85), heart or lung transplantation (OR 2.61), and autonomic dysfunction (OR 2.37) were independent predictors of an abnormal GES. CONCLUSIONS The correlation between an abnormal GES and HRM argues for common pathogenic mechanisms of these motility disorders, and possibly common future treatment options. Clinicians should have a high index of suspicion for another motility disorder if one is present.
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Affiliation(s)
- Thomas A Zikos
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA.
| | - John O Clarke
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - George Triadafilopoulos
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - Kirsten A Regalia
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - Irene S Sonu
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - Nielsen Q Fernandez-Becker
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - Monica C Nandwani
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
| | - Linda A Nguyen
- Stanford Multidimensional Program for Innovation and Research in the Esophagus (S-MPIRE), Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 300 Pasteur Drive, Alway Building, Room M211, Stanford, CA, 94305-5187, USA
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A clinical study of peroral endoscopic myotomy reveals that impaired lower esophageal sphincter relaxation in achalasia is not only defined by high-resolution manometry. PLoS One 2018; 13:e0195423. [PMID: 29608597 PMCID: PMC5880396 DOI: 10.1371/journal.pone.0195423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/23/2018] [Indexed: 12/12/2022] Open
Abstract
Background and aim Achalasia is an esophageal motility disorder characterized by impaired lower esophageal sphincter (LES) relaxation. On high-resolution manometry (HRM), impaired LES relaxation is defined by elevated integrated relaxation pressure (IRP). However, a new category of achalasia within the normal IRP range has been suggested. Methods HRM was performed using a Starlet device and an IRP threshold of 26 mmHg. Peroral endoscopic myotomy (POEM) was performed for cases of achalasia diagnosed using established methods. During POEM, the histology of the LES was assessed. Follow-up was performed 2 months post-operatively. Results Forty-one patients with achalasia (18 women, mean age 53 ± 18.6 years) were included. Among them, 27 were placed in the IRP > 26 mmHg subgroup (impaired LES relaxation on HRM) and 14 in the IRP ≤ 26 mmHg subgroup (normal LES relaxation on HRM). In the IRP ≤ 26 mmHg subgroup, patients were older, had longer symptom duration, and had more esophageal dilation. The IRP ≤ 26 mmHg subgroup had the same symptom severity as the higher IRP subgroup and POEM significantly improved symptoms and IRP, although four patients still had severe LES fibrosis. Conclusions The clinical presentation of achalasia has a gap between a HRM-defined impaired LES relaxation, with aging or disease progression considered reasons for a lowered LES pressure. POEM can be a feasible treatment option, even for cases of achalasia with a normal IRP. However, patients with severe LES fibrosis need more attention for the therapeutic indication.
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