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Latorre-Rodríguez AR, Mittal SK. Brief guidelines for beginners on how to perform and analyze esophageal high-resolution manometry. GASTROENTEROLOGIA Y HEPATOLOGIA 2024; 47:661-671. [PMID: 38266818 DOI: 10.1016/j.gastrohep.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/15/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
High-resolution manometry (HRM) is a diagnostic tool for surgeons, gastroenterologists and other healthcare professionals to evaluate esophageal physiology. The Chicago Classification (CC) system is based on a consensus of worldwide experts to minimize ambiguity in HRM data acquisition and diagnosis of esophageal motility disorders. The most updated version, CCv4.0, was published in 2021; however, it does not provide step-by-step guidelines (i.e., for beginners) on how to assess the most important HRM metrics. This paper aims to summarize the basic guidelines for conducting a high-quality HRM study including data acquisition and interpretation, based on CCv4.0, using Manoview ESO analysis software, version 3.3 (Medtronic, Minneapolis, MN).
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Affiliation(s)
- Andrés R Latorre-Rodríguez
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA; Universidad del Rosario, Escuela de Medicina y Ciencias de la Salud, Grupo de Investigación Clínica, Bogotá D.C., Colombia
| | - Sumeet K Mittal
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA; Creighton University School of Medicine, Phoenix, AZ, USA.
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Pomenti S, Nathanson J, Phipps M, Aneke-Nash C, Katzka D, Freedberg D, Jodorkovsky D. Esophagogastroduodenoscopy findings that do no not explain dysphagia are associated with underutilization of high-resolution manometry. Dis Esophagus 2024:doae028. [PMID: 38582609 DOI: 10.1093/dote/doae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/08/2024]
Abstract
In patients with dysphagia that is not explained by upper endoscopy, high-resolution esophageal manometry (HRM) is the next logical step in diagnostic testing. This study investigated predictors of failure to refer for HRM after an upper endoscopy that was performed for but did not explain dysphagia. This was a retrospective cohort study of patients >18 years of age who underwent esophagogastroduodenoscopy (EGD) for dysphagia from 2015 to 2021. Patients with EGD findings that explained dysphagia (e.g. esophageal mass, eosinophilic esophagitis, Schatzki ring, etc.) were excluded from the main analyses. The primary outcome was failure to refer for HRM within 1 year of the index non-diagnostic EGD. We also investigated delayed referral for HRM, defined as HRM performed after the median. Multivariable logistic regression modeling was used to identify risk factors that independently predicted failure to refer for HRM, conditioned on the providing endoscopist. Among 2132 patients who underwent EGD for dysphagia, 1240 (58.2%) did not have findings to explain dysphagia on the index EGD. Of these 1240 patients, 148 (11.9%) underwent HRM within 1 year of index EGD. Endoscopic findings (e.g. hiatal hernia, tortuous esophagus, Barrett's esophagus, surgically altered anatomy not involving the gastroesophageal junction, and esophageal varices) perceived to explain dysphagia were independently associated with failure to refer for HRM (adjusted odds ratio 0.45, 95% confidence interval 0.25-0.80). Of the 148 patients who underwent HRM within 1 year of index EGD, 29.7% were diagnosed with a disorder of esophagogastric junction outflow, 17.6% with a disorder of peristalsis, and 2.0% with both disorders of esophagogastric outflow and peristalsis. The diagnosis made by HRM was similar among those who had incidental EGD findings that were non-diagnostic for dysphagia compared with those who had completely normal EGD findings. Demographic factors including race/ethnicity, insurance type, and income were not associated with failure to refer for HRM or delayed HRM. Patients with dysphagia and endoscopic findings unrelated to dysphagia have a similar prevalence of esophageal motility disorders to those with normal endoscopic examinations, yet these patients are less likely to undergo HRM. Provider education is indicated to increase HRM referral in these patients.
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Affiliation(s)
- Sydney Pomenti
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - John Nathanson
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - Meaghan Phipps
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - Chino Aneke-Nash
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - David Katzka
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - Daniel Freedberg
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, NY, USA
| | - Daniela Jodorkovsky
- Department of Medicine, Division of Digestive Diseases, Mount Sinai Doctors, New York, NY, USA
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Saeki Y, Tanabe K, Ota H, Chikuie E, Takemoto Y, Karakuchi N, Miura O, Toyama E, Ohdan H. Intraoesophageal pressure in patients receiving proximal gastrectomy with hinged double flap method for gastric cancer: a retrospective cohort study. Ann Med Surg (Lond) 2024; 86:712-719. [PMID: 38333281 PMCID: PMC10849429 DOI: 10.1097/ms9.0000000000001625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/05/2023] [Indexed: 02/10/2024] Open
Abstract
Background Objective functional assessment of esophagogastric anastomosis in patients who underwent proximal gastrectomy with the hinged double flap method for gastric cancer has not been well investigated. This study aimed to perform a functional analysis of reconstruction using high-resolution impedance manometry (HRIM). Materials and methods The authors enroled 25 patients who underwent proximal gastrectomy for gastric cancer between May 2015 and April 2020 and subsequently underwent HRIM postoperatively. Eligible questionnaires [Postgastrectomy Syndrome Assessment Scale-37 (PGSAS-37)] were retrieved from 16 patients. The association between HRIM data and PGSAS-37 was analyzed. Results The amplitudes of distal oesophageal peristaltic waves, contractile front velocity, and distal latency assessed by HRIM were almost normal after surgery. Most patient's lower oesophageal sphincter (LES) resting pressure created by the hinged double flap was within normal limits. Conversely, LES residual pressure values during swallowing-induced relaxation were abnormally high in most patients, and the lower the values, the more severe the reflux and diarrhoea symptoms (P=0.038, P=0.041, respectively). In addition, even when the integrated relaxation pressure (IRP) was normal, lower values corresponded to more severe reflux symptoms (P=0.020). The required LES pressure may be higher after proximal gastrectomy because of the relatively higher intragastric pressure due to the reduced volume of the remnant stomach. This also suggests that swallowing-induced relaxation of the LES was considered a trigger for oesophageal reflux in post-proximal gastrectomy patients. Conclusion LES residual pressure and IRP values in HRIM correlated with reflux symptoms in patients after proximal gastrectomy.
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Affiliation(s)
- Yoshihiro Saeki
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
- Division of Endoscopic Surgery, Hofu Institute of Gastroenterology, Hiroshima University Hospital
| | - Kazuaki Tanabe
- Department of Perioperative and Critical Care Management, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima
- Division of Endoscopic Surgery, Hofu Institute of Gastroenterology, Hiroshima University Hospital
| | - Hiroshi Ota
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
| | - Emi Chikuie
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
| | - Yuki Takemoto
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
| | - Nozomi Karakuchi
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
| | - Osamu Miura
- Department of Gastroenterological Surgery, Hofu Institute of Gastroenterology, 14-33 Ekiminami-machi, Yamaguchi, Japan
| | - Eiichiro Toyama
- Department of Gastroenterological Surgery, Hofu Institute of Gastroenterology, 14-33 Ekiminami-machi, Yamaguchi, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Science
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Provenzano L, Pulvirenti R, Duci M, Capovilla G, Costantini A, Forattini F, Gamba P, Costantini M, Fascetti-Leon F, Salvador E. Laparoscopic Heller-Dor Is a Persistently Effective Treatment for Achalasia Even in Pediatric Patients: A 25-Year Experience at a Single Tertiary Center. Eur J Pediatr Surg 2023; 33:493-498. [PMID: 36720247 DOI: 10.1055/s-0043-1760822] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Esophageal achalasia (EA) is a rare primary motility disorder in any age group, and particularly rare in the pediatric population, with a reported incidence of 0.18 per 100,000 children a year. EA in pediatric age is currently treated in the same way as in adults, but this approach is based on only a few studies on small case series. The aim of this retrospective study was to assess the long-term outcome of the laparoscopic Heller-Dor (LHD) procedure when performed in pediatric patients with EA at our university hospital. MATERIALS AND METHODS We considered children and adolescents younger than 16 years old diagnosed with EA and treated with LHD between 1996 and 2022. Clinical data were prospectively collected in an ongoing database. Symptoms were recorded and their severity was calculated using the Eckardt score. Barium swallow, esophageal manometry (conventional or high-resolution), and endoscopy were performed before and after the surgical procedure. RESULTS During the study period, 40 children with a median age of 14 years (interquartile range [IQR]: 11-15) underwent LHD. At a median follow-up of 10.5 years (IQR: 4.5-13.9), a good outcome was achieved in 36/40 patients (90%). Two of the four patients whose surgical procedure failed underwent complementary pneumatic dilations successfully, thus increasing the overall success rate to 95%. A previous endoscopic treatment (in five patients) did not affect the final outcome (p = 0.49). An intraoperative mucosal lesion was detected in only one patient (2.5%) and was repaired at the time without further consequences. During the follow-up, 22 patients underwent endoscopy, and 17 had pH monitoring as well: only 2 of these patients showed reflux esophagitis at endoscopy (one of them with abnormal findings on pH monitoring), amounting to a 9.1% rate of instrumentally confirmed postoperative reflux. CONCLUSION LHD is a safe and persistently effective treatment for EA in pediatric age, with a success rate comparable with what is usually obtained in adults, and better than what has been reported to date in the pediatric literature. Adding a fundoplication certainly helps ensure an optimal long-term control of any gastroesophageal reflux induced by the myotomy.
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Affiliation(s)
- Luca Provenzano
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Rebecca Pulvirenti
- Division of Pediatric Surgery, Department of Women's and Children's Health, University of Padova, Padova, Veneto, Italy
| | - Miriam Duci
- Division of Pediatric Surgery, Department of Women's and Children's Health, University of Padova, Padova, Veneto, Italy
| | - Giovanni Capovilla
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Andrea Costantini
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Francesca Forattini
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Piergiorgio Gamba
- Division of Pediatric Surgery, Department of Women's and Children's Health, University of Padova, Padova, Veneto, Italy
| | - Mario Costantini
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Francesco Fascetti-Leon
- Division of Pediatric Surgery, Department of Women's and Children's Health, University of Padova, Padova, Veneto, Italy
| | - Enato Salvador
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
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Edeani F, Massey B. Esophageal motility disorder - has Chicago classification v4.0 simplified our management? Curr Opin Otolaryngol Head Neck Surg 2023; 31:374-381. [PMID: 37820073 DOI: 10.1097/moo.0000000000000936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
REVIEW PURPOSE Addressing dysphagia is vital due to its prevalence and impact on healthcare expenditure. While high resolution manometry (HRM) effectively evaluates esophageal dysphagia, its role in oropharyngeal dysphagia and upper esophageal sphincter (UES) dysfunction remains debated. The fourth iteration of the Chicago classification (CC) offers an algorithmic approach for diagnosing abnormal motor patterns via HRM. This review assesses the CC's impact on dysphagia management. RECENT INSIGHTS The Chicago classification version 4.0 emphasizes auxiliary and provocative techniques when the algorithm falls short of a conclusive diagnosis. It introduces stricter criteria for previously ambiguous conditions like ineffective motility and esophagogastric junction outflow obstruction. This version also introduces the concept of conclusive and inconclusive classifications based on symptoms, provocation maneuvers, and supportive testing minimizing ambiguity. SUMMARY The Chicago classification v4.0 remains a useful tool for the diagnosis of well characterized esophageal motility disorders. However, major limitations include reliance on HRM and a focus on distal esophagus contractile characteristics without considering proximal esophagus or upper esophageal sphincter, both of which can sometimes be the only evident abnormality in patients with dysphagia. Despite efforts to reduce ambiguity, diagnostic challenges persist. These limitations can be addressed in future updates.
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Affiliation(s)
- Francis Edeani
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Wisconsin, USA
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Hosaka H, Kuribayashi S, Kawamura O, Itoi Y, Sato K, Hashimoto Y, Kasuga K, Tanaka H, Kusano M, Uraoka T. The relationship between manometric subtype and symptom details in achalasia. Esophagus 2023; 20:761-768. [PMID: 37093537 DOI: 10.1007/s10388-023-01008-w] [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: 12/28/2022] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND Although dysphagia and chest pain are the two most common symptoms in patients with achalasia, the mechanism of evoking symptoms is still unknown. The aim of this study was to reveal the relationship between symptoms and the subtypes of achalasia defined by the Chicago classification. METHODS A total of 71consecutive patients with newly diagnosed achalasia were enrolled between March 2009 and December 2017. Esophageal motility was assessed by high-resolution manometry (HRM) with the Chicago classification v 3.0. and esophagograms. Their symptoms were evaluated with structured self-reported questionnaires focused on dysphagia and chest pain. Symptom profiles and radiographic findings according to the manometric subtypes were investigated. RESULTS Among the total 71 patients, 69 patients (97%) had dysphagia and 39 patients (54%) had chest pain. Regarding dysphagia, type II patients reported dysphagia in the throat the most, while types I and III patients mostly felt it in the epigastrium. Type II patients often felt dysphagia at the time of swallowing (41%), but this was reported in only 8.7% of Type I and 33% of Type III patients (p = 0.02). Concerning chest pain, Type I patients rarely had pain during meals (14%), but more often while sleeping (43%) and in early morning (43%), while type III patients often had pain during meals (67%). Type III patients reported that solid food caused pain more often than other types (I/II/III 0/10/33%, p = 0.09). CONCLUSIONS Detailed symptoms of achalasia, such as its site and timing, varied by subtypes. The status of the esophageal body might induce those differences in symptoms.
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Affiliation(s)
- Hiroko Hosaka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan.
| | - Shiko Kuribayashi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Osamu Kawamura
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Yuki Itoi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Keigo Sato
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Yu Hashimoto
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Kengo Kasuga
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Hirohito Tanaka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Motoyasu Kusano
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-Machi Maebashi, Gunma, 371-8511, Japan
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Hoshikawa Y, Iwakiri K. Esophageal Motility Disorders: Diagnosis and Treatment Strategies. Digestion 2023; 105:11-17. [PMID: 37634495 DOI: 10.1159/000533347] [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: 06/09/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Esophageal motility disorders (EMDs) are caused by the impaired relaxation of the upper/lower esophageal sphincter and/or defective esophageal peristaltic contractions, resulting in dysphagia and noncardiac chest pain. High-resolution manometry (HRM) is essential for the diagnosis of primary EMD; however, the recognition of EMD and HRM by general practitioners in Japan is limited. This review summarizes the diagnosis of and treatment strategies for EMD. SUMMARY HRM is a specific test for the diagnosis of EMD, whereas endoscopy and barium swallow as screening tests provide characteristic findings (i.e., esophageal rosette and bird's beak sign) in some cases. It is important to note that manometric diagnoses apart from achalasia are often clinically irrelevant; therefore, the recently updated guidelines suggest additional manometric maneuvers, such as the rapid drink challenge, and further testing, including functional lumen imaging, for a more accurate diagnosis before invasive treatment. Endoscopic/surgical myotomy, pneumatic dilation, and botulinum toxin injections need to be considered for patients with achalasia and clinically relevant esophagogastric junction outflow obstruction. KEY MESSAGE Since the detailed pathophysiology of EMD remains unclear, their diagnosis needs to be cautiously established prior to the initiation of invasive treatment.
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Affiliation(s)
- Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
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Salvador R, Forattini F, Provenzano L. Role of surgery for oesophagogastric junction outflow obstruction. Br J Surg 2023; 110:1025-1027. [PMID: 37310184 DOI: 10.1093/bjs/znad170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/02/2023] [Accepted: 05/13/2023] [Indexed: 06/14/2023]
Affiliation(s)
- Renato Salvador
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, School of Medicine, Padova, Italy
| | - Francesca Forattini
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, School of Medicine, Padova, Italy
| | - Luca Provenzano
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, School of Medicine, Padova, Italy
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Edeani F, Sanvanson P, Mei L, Agrawal D, Kern M, Kovacic K, Shaker R. Effect of inter-swallow interval on striated esophagus peristalsis; a comparative study with smooth muscle esophagus. Neurogastroenterol Motil 2023; 35:e14608. [PMID: 37154414 PMCID: PMC10789016 DOI: 10.1111/nmo.14608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/10/2023] [Accepted: 04/25/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Effect of inter-swallow interval on the contractility of smooth muscle esophagus is well-documented. However, the effects on peristalsis of the striated esophagus have not been systematically studied. A better understanding of striated esophagus motor function in health and disease may enhance the interpretation of manometric studies and inform clinical care. The aim of this study was to assess the effect of inter-swallow interval on striated esophagus compared to findings with that of the smooth muscle esophagus. METHODS We performed two sets of studies to (1) determine the effect of various inter-swallow interval in 20 healthy volunteers and (2) assess the effect of ultra-short swallow intervals facilitated by straw drinking in 28 volunteers. We analyzed variables using ANOVA with Tukey's pairwise comparison and paired t-test. KEY RESULTS Unlike smooth muscle esophagus, the striated esophagus contractile integral did not change significantly for swallow intervals ranging from 30 to 5 s. On the contrary, striated esophagus demonstrated absent or reduced peristalsis in response to ultra-short (<2 s) intervals during straw-facilitated multiple rapid swallows. CONCLUSIONS AND INFERENCES Striated esophagus peristalsis is subject to manometrically observed inhibition during swallows with ultra-short intervals. Inter-swallow intervals as short as 5 s that inhibit smooth muscle esophagus peristalsis do not inhibit striated muscle peristalsis. The mechanisms of these observations are unknown but may relate to central or myenteric nervous system influences or the effects of pharyngeal biomechanics.
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Affiliation(s)
- Francis Edeani
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
| | - Patrick Sanvanson
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
| | - Ling Mei
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
| | - Dilpesh Agrawal
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
| | - Mark Kern
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
| | - Katja Kovacic
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Medical College of Wisconsin
| | - Reza Shaker
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin
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Gyawali CP, Kahrilas PJ. A Short History of High-Resolution Esophageal Manometry. Dysphagia 2023; 38:586-595. [PMID: 34739589 PMCID: PMC9380033 DOI: 10.1007/s00455-021-10372-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 09/27/2021] [Indexed: 01/24/2023]
Abstract
High-resolution esophageal manometry (HRM) utilizes sufficient pressure sensors such that intraluminal pressure is monitored as a continuum along luminal length, similar to time viewed as a continuum on polygraph tracings in 'conventional' manometry. When HRM is coupled with pressure topography plotting, and pressure amplitude is transformed into spectral colors with isobaric areas indicated by same-colored regions, "Clouse plots" are generated. HRM has several advantages compared to the technology that it replaced: (1) the contractility of the entire esophagus can be viewed simultaneously in a uniform standardized format, (2) standardized objective metrics of peristaltic and sphincter function can be systematically applied for interpretation, and (3) topographic patterns of contractility are more easily recognized with greater reproducibility. Leveraging these advantages led to the current standard for the interpretation of clinical esophageal HRM studies, the Chicago Classification (CC), now in its fourth iteration. Compared to conventional manometry, HRM has vastly improved the sensitivity for detecting achalasia, largely due to the objectivity and accuracy of identification of impaired esophagogastric junction (EGJ) relaxation. Additionally, it has led to the subcategorization of achalasia into three clinically relevant subtypes, differentiated by the contractile function of the esophageal body, and identified an additional disorder of EGJ outflow obstruction wherein esophageal peristalsis is preserved. Headway has also been made in understanding hypocontractile and hypercontractile conditions. In summary, HRM and the CC process have revolutionized our understanding of esophageal motility and motility disorders. Moving forward, there will always be remaining challenges, but we now have the tools to meet them.
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Affiliation(s)
- C Prakash Gyawali
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, MO, USA
| | - Peter J Kahrilas
- Division of Gastroenterology, Department of Medicine, The Feinberg School of Medicine, Northwestern University, 676 St Clair St, Suite 1400, Chicago, IL, 60611-2951, USA.
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Alcalá-González LG, Ezquerra-Duran A, Aguilar A, Barber C, Barba E, Araujo IK, Marin I, Naves J, Serra J. Benefit of extending the protocol for high resolution manometry according to the version 4.0 of the Chicago criteria. A multicenter study. Neurogastroenterol Motil 2023; 35:e14503. [PMID: 36443930 DOI: 10.1111/nmo.14503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND The last version of the Chicago Criteria for high resolution esophageal manometry proposes an expanded protocol including complementary maneuvers to improve the diagnostic yield of the exploration. Our aim was to determine the diagnostic gain of the CCv4.0 protocol compared to the CCv3.0 protocol. METHODS All manometry recordings performed in 4 reference centers during the first 10 months after the implementation of the new protocol were retrospectively reviewed. The time spent to complete the protocol was measured, and the changes in diagnosis resulting from the new CCv4.0 were compared to CCv3.0. KEY RESULTS From a total of 756 HRM performed, 606 studies could be properly analyzed. The duration of the studies was 18.3 ± 4.3 min. From these, 11.3 ± 3.4 min were spent to complete the CCv3.0 protocol, and 7.4 ± 3.6 min were spent for the remaining maneuvers. A discordant diagnosis between CCv3.0 and CCv4.0 was obtained in 12% of patients: 32% of patients with ineffective esophageal motility turned to normal motility; 24% of patients with esophagogastric junction outlet obstruction (EGJOO) turned to a non-obstructive disorder; and 1% of patients with an apparently normal EGJ relaxation, turned to an obstructive disorder. EGJOO according to CCv4.0 was more prevalent in patients referred for dysphagia (11%) than those referred for GERD (4%; p = 0.003). CONCLUSIONS AND INFERENCES Prolongation of the time spent to complete the CCv4.0 protocol leads to a change in the diagnosis of 12% of patients. Clinically relevant changes are mainly related to the evaluation of EGJOO.
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Affiliation(s)
- Luis G Alcalá-González
- Digestive System Research Unit, University Hospital Vall d'Hebrón, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Alberto Ezquerra-Duran
- Digestive System Research Unit, University Hospital Vall d'Hebrón, Barcelona, Spain.,Neurogastroenterology and Motility Unit, Gastroenterology Department, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Ariadna Aguilar
- Digestive System Research Unit, University Hospital Vall d'Hebrón, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Claudia Barber
- Digestive System Research Unit, University Hospital Vall d'Hebrón, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Elizabeth Barba
- Neurogastroenterology and Motility Unit, Gastroenterology Department, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Isis K Araujo
- Neurogastroenterology and Motility Unit, Gastroenterology Department, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Ingrid Marin
- Autonomous University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain.,Motility and Functional Gut disorders Unit, University Hospital Germans Trias I Pujol, Badalona, Spain
| | | | - Jordi Serra
- Digestive System Research Unit, University Hospital Vall d'Hebrón, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
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12
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Costantini M, Salvador R, Costantini A. Primary esophageal motility disorders beyond achalasia. Dysphagia 2023. [DOI: 10.1016/b978-0-323-99865-9.00010-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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13
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Assessment of Esophageal Motility in Patients With Eosinophilic Esophagitis: A Scoping Review. J Clin Gastroenterol 2023; 57:10-30. [PMID: 36504227 DOI: 10.1097/mcg.0000000000001792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/08/2022] [Indexed: 12/15/2022]
Abstract
Eosinophilic esophagitis (EoE) is a chronic, immune-mediated condition causing esophageal symptoms, particularly dysphagia. Despite the important progress in the treatment of EoE, a significant proportion of patients continue to report symptoms that negatively impact quality of life. Esophageal manometry is used to assess motility and function, but is not routinely used in EoE. We aimed to systematically review and describe current literature evaluating esophageal manometry in EoE. Forty-eight studies meeting the criteria were identified, describing 802 patients. Using standard water swallow protocols, the proportion of abnormalities detected was not dissimilar to other populations, apart from disorders of esophago-gastric outflow, which were found in 5%. Twelve studies described pretreatment and posttreatment manometry, with motility normalization after pharmacological therapy reported in 20%. Early, brief panesophageal pressurization was described in a number of studies and was more prevalent in the few studies utilizing additional provocation testing. Reports in the literature regarding temporal relationships between manometric findings and symptoms are variable. Esophageal manometry may be capable of detecting clinically relevant changes to esophageal function in EoE. Possible mechanisms are altered neuromuscular function because of secretory products of EoE and/or fibroinflammatory processes, manifesting as pressurization because of altered esophageal compliance. Some changes may be reversible with therapy. Drawing strong conclusions from the literature is difficult, with bias toward case reports and retrospective observation. Adaptations to assessment protocols to include provocation testing may provide more robust evaluation and detect clinically relevant, subtle changes in esophageal function, earlier within the patient pathway.
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14
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Visaggi P, Ghisa M, Marabotto E, Venturini A, Stefani Donati D, Bellini M, Savarino V, de Bortoli N, Savarino E. Esophageal dysmotility in patients with eosinophilic esophagitis: pathogenesis, assessment tools, manometric characteristics, and clinical implications. Esophagus 2023; 20:29-38. [PMID: 36220921 PMCID: PMC9813083 DOI: 10.1007/s10388-022-00964-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/03/2022] [Indexed: 02/03/2023]
Abstract
Eosinophilic esophagitis (EoE) represents a growing cause of chronic esophageal morbidity whose incidence and prevalence are increasing rapidly. The disease is characterized by eosinophilic infiltrates of the esophagus and organ dysfunction. Typical symptoms include dysphagia, chest pain, and bolus impaction, which are associated to mechanical obstructions in most patients. However, up to one in three EoE patients has no visible obstruction, suggesting that a motor disorder of the esophagus may underlie symptoms. Although potentially relevant for treatment refractoriness and symptomatic burden, esophageal dysmotility is often neglected when assessing EoE patients. The first systematic review investigating esophageal motility patterns in patients with EoE was published only recently. Accordingly, we reviewed the pathogenesis, assessment tools, manometric characteristics, and clinical implications of dysmotility in patients with EoE to highlight its clinical relevance. In summary, eosinophils can influence the amplitude of esophageal contractions via different mechanisms. The prevalence of dysmotility may increase with disease duration, possibly representing a late feature of EoE. Patients with EoE may display a wide range of motility disorders and possible disease-specific manometric pressurization patterns may be useful for raising a clinical suspicion. Intermittent dysmotility events have been found to correlate with symptoms on prolonged esophageal manometry, although high-resolution manometry studies have reported inconsistent results, possibly due to the suboptimal sensitivity of current manometry protocols. Motor abnormalities may recover following EoE treatment in a subset of patients, but invasive management of the motor disorder is required in some instances. In conclusion, esophageal motor abnormalities may have a role in eliciting symptoms, raising clinical suspicion, and influencing treatment outcome in EoE. The assessment of esophageal motility appears valuable in the EoE setting.
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Affiliation(s)
- Pierfrancesco Visaggi
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Matteo Ghisa
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Elisa Marabotto
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Arianna Venturini
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Delio Stefani Donati
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Massimo Bellini
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Vincenzo Savarino
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Nicola de Bortoli
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Edoardo Savarino
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Via Giustiniani 2, 35128, Padua, Italy.
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15
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Evaluation of Therapeutic Effect of Buspirone in Improving Dysphagia in Patients with GERD and Ineffective Esophageal Motility: A Randomized Clinical Trial. GASTROENTEROLOGY INSIGHTS 2022. [DOI: 10.3390/gastroent14010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Ineffective esophageal motility (IEM) is the most common esophageal motility disorder associated with low-to-moderate amplitude contractions in the distal esophagus in manometric evaluations. Despite recent new conceptions regarding the pathophysiology of esophageal motility and IEM, there are still no effective therapeutic interventions for the treatment of this disorder. This study aimed to investigate the effect of buspirone in the treatment of concomitant IEM and GERD. Methods and Materials: The present study was a randomized clinical trial conducted at the Imam Khomeini Hospital, Tehran. Patients with a history of gastroesophageal reflux disease and dysphagia underwent upper endoscopy to rule out any mechanical obstruction and were diagnosed with an ineffective esophageal motility disorder based on high-resolution manometry. They were given a package containing the desired medication(s); half of the packets contained 10 mg (for 30 days) of buspirone and 40 mg (for 30 days) of pantoprazole, and the other half contained only 40 mg (for 30 days) of pantoprazole. Dysphagia was scored based on the Mayo score, as well as a table of dysphagia severity. Manometric variables were recorded before and after the treatment. Results: Thirty patients (15 pantoprazole and 15 pantoprazole plus buspirone) were included. Females comprised 63.3% of the population, with a mean age of 46.33 ± 11.15. The MAYO score and resting LES pressure significantly changed after treatment. The MAYO and Swallowing Disorder Questionnaire scores significantly decreased after treatment in both groups of patients. Our results revealed that the post-intervention values of manometric variables differed significantly between the two groups after controlling for the baseline values of the variables. This analysis did not demonstrate the superiority of buspirone. Conclusion: Buspirone seems to have no superiority over PPI. Treatment with concomitant IEM and GERD using proton pump inhibitors improves the patient’s clinical condition and quality of life. However, adding buspirone to the treatment regimen did not appear to make a significant difference in patient treatment.
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16
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Muacevic A, Adler JR, Hussain W, Agrawal S. Butterfly in the Esophagus: A Case Report on a Rare Esophageal Manometry Catheter Malposition. Cureus 2022; 14:e32566. [PMID: 36654615 PMCID: PMC9840448 DOI: 10.7759/cureus.32566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
We report the case of a 75-year-old man who underwent high-resolution manometry (HRM) testing for solid food dysphagia after an unrevealing upper endoscopy and biopsies. A barium esophagogram confirmed nonspecific motility disorder. A subsequent HRM study was performed, but when all swallow studies were noted to fail, and the manometric images revealed a butterfly wings appearance, it was found that the manometry catheter was actually coiled and folded back cephalad. As there are only a few other case reports with similar presentations, we believe this case would serve as a good reminder for clinicians to practice caution when cannulating the manometry catheter.
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17
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Visaggi P, Ghisa M, Barberio B, Marabotto E, de Bortoli N, Savarino E. Systematic Review: esophageal motility patterns in patients with eosinophilic esophagitis. Dig Liver Dis 2022; 54:1143-1152. [PMID: 35090825 DOI: 10.1016/j.dld.2022.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Eosinophilic esophagitis (EoE) is a chronic disorder of the esophagus characterized by an eosinophil-predominant inflammation and symptoms of esophageal dysfunction. Eosinophils can influence esophageal motility, leading to dysphagia worsening. The spectrum of esophageal motility in EoE is uncertain. AIM We performed a systematic review to investigate esophageal motility in EoE. METHODS MEDLINE, EMBASE and EMBASE Classic were searched from inception to 16th November 2021. Studies reporting esophageal motility findings in EoE patients by means of conventional, prolonged, and/or high-resolution esophageal manometry were eligible. RESULTS Studies on esophageal conventional and high-resolution manometry (HRM) found that all types of manometric motor patterns can be found in patients with EoE and investigations on 24-hour prolonged manometry demonstrated an association between symptoms and intermittent dysmotility events, which can be missed during standard manometric analysis. Panesophageal pressurizations are the most common HRM finding and may help in formulating a clinical suspicion. Some motility abnormalities may reverse after medical treatment, while other major motility disorders like achalasia require invasive management for symptoms control. HRM metrics have demonstrated to correlate with inflammatory and fibrostenotic endoscopic features of EoE. CONCLUSION Esophageal motor abnormalities are common in patients with EoE and may contribute to symptoms. The resolution of dysmotility after medical treatment corroborates that eosinophils influence esophageal motility.
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Affiliation(s)
- Pierfrancesco Visaggi
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Matteo Ghisa
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Brigida Barberio
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Elisa Marabotto
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Nicola de Bortoli
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Edoardo Savarino
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.
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18
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Ujiie N, Sato H, Fujiyoshi MRA, Tanaka S, Shiwaku H, Shiota J, Ogawa R, Yokomichi H, Kamei T, Inoue H. Geriatric patients with esophageal motility disorders benefit more from minimally invasive peroral endoscopic myotomy: a multicenter study in Japan. Dis Esophagus 2022; 35:6479783. [PMID: 34937083 DOI: 10.1093/dote/doab086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/23/2021] [Indexed: 12/11/2022]
Abstract
Geriatric patients with existing studies on the safety and efficacy of peroral endoscopic myotomy (POEM) for achalasia involve small sample sizes and single institutions. However, multi-center, large-scale data analyses are lacking. The study aimed to clarify the characteristics of geriatric patients with esophageal motility disorders (EMDs) and determine the procedure-related outcomes and clinical course following POEM. This cohort study included 2,735 patients with EMDs who were treated at seven Japanese facilities between 2010 and 2019. The patients' characteristics and post-POEM clinical courses were compared between the geriatric (age ≥ 75 years; n = 321) and non-geriatric (age < 75 years; n = 2,414) groups. Compared with the non-geriatric group, the geriatric group had higher American Society of Anesthesiologists physical status scores; more recurrent cases; lower incidence of chest pain; and higher incidence of type III achalasia, distal esophageal spasm, and Jackhammer esophagus. Furthermore, the incidence of sigmoid esophagus was higher, although esophageal dilation was not severe in this group. POEM was safe and effective for geriatric patients with treatment-naïve and recurrent EMDs. Furthermore, compared with the non-geriatric group, the geriatric group had lower post-POEM Eckardt scores, fewer complaints of refractory chest pain, and a lower incidence rate of post-POEM reflux esophagitis. Geriatric patients are characterized by worse clinical conditions, more spastic disorders, and greater disease progression of EMDs, which are also the indications for minimally invasive POEM. POEM is more beneficial in geriatric patients as it has lowering symptom scores and incidence rates of reflux esophagitis.
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Affiliation(s)
- Naoto Ujiie
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Medicine, Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL, USA
| | - Hiroki Sato
- Division of Gastroenterology & Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Shinwa Tanaka
- Department of Gastroenterology, Kobe University Hospital, Kobe, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Takashi Kamei
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
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19
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Ribolsi M, Ghisa M, Savarino E. Nonachalasic esophageal motor disorders, from diagnosis to therapy. Expert Rev Gastroenterol Hepatol 2022; 16:205-216. [PMID: 35220870 DOI: 10.1080/17474124.2022.2047648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Investigations conducted using conventional manometry and, recently, using high-resolution manometry (HRM), allowed us to explore the field of esophageal motility and understand the potential link between motor features and gastroesophageal reflux disease (GERD) pathogenesis. The management of patients with nonachalasic esophageal motor disorders is often challenging, due to the clinical heterogeneous presentation and the multifactorial nature of the mechanisms underlying symptoms. AREAS COVERED Several studies, carried out using HRM, have better interpreted the esophageal motor function in patients with esophagogastric junction outflow obstruction (EGJOO), distal esophageal spasm (DES), hypertensive esophagus, and hypomotility disorders. Moreover, HRM studies have shown a direct correlation between reduced esophageal motility, disruption of the esophagogastric junction, and gastroesophageal reflux burden. EXPERT OPINION Pathogenesis, clinical presentation, diagnosis, and treatment of nonachalasic esophageal motor disorders still represent a challenging area, requiring future evaluation by multicenter outcome studies carried out in a large cohort of patients and asymptomatic subjects. However, we believe that an accurate clinical, endoscopic, and HRM evaluation is, nowadays, helpful in addressing patients with nonachalasic esophageal motor disorders to optimal treatment options.
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Affiliation(s)
- Mentore Ribolsi
- Unit of Gastroenterology and Digestive Endoscopy, Campus Bio Medico University, Rome, Italy
| | - Matteo Ghisa
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
| | - Edoardo Savarino
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
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20
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Madigan KE, Smith JS, Evans JK, Clayton SB. Elevated average maximum intrabolus pressure on high-resolution manometry is associated with esophageal dysmotility and delayed esophageal emptying on timed barium esophagram. BMC Gastroenterol 2022; 22:74. [PMID: 35189822 PMCID: PMC8859877 DOI: 10.1186/s12876-022-02165-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intrabolus pressure (IBP) recorded by high-resolution manometry (HRM) portrays the compartmentalized force on a bolus during esophageal peristalsis. HRM may be a reliable screening tool for esophageal dysmotility in patients with elevated average maximum IBP (AM-IBP). Timed barium esophagram (TBE) is a validated measure of esophageal emptying disorders, such as esophagogastric junction outflow obstruction and achalasia. This study aimed to determine if an elevated AM-IBP correlates with esophageal dysmotility on HRM and/or delayed esophageal emptying on TBE. METHODS A retrospective analysis of all HRM (unweighted sample n = 155) performed at a tertiary referral center from 09/2015-03/2017 yielded a case group (n = 114) with abnormal AM-IBP and a control group (n = 41) with a normal AM-IBP (pressure < 17 mmHg) as consistent with Chicago Classification 3. All patients received a standardized TBE, with abnormalities classified as greater than 1 cm of retained residual liquid barium in the esophagus at 1 and 5 min or as tablet retention after 5 min. RESULTS AM-IBP was significantly related to liquid barium retention (p = 0.003) and tablet arrest on timed barium esophagram (p = 0.011). A logistic regression model correctly predicted tablet arrest in 63% of cases. Tablet arrest on AM-IBP correlated with an optimal prediction point at 20.1 mmHg on HRM. Patients with elevated AM-IBP were more likely to have underlying esophageal dysmotility (95.6% vs. 70.7% respectively; p < 0.001), particularly esophagogastric junction outflow obstruction disorders. Elevated AM-IBP was associated with incomplete liquid bolus transit on impedance analysis (p = 0.002). CONCLUSIONS Our findings demonstrate that an elevated AM-IBP is associated with abnormal TBE findings of esophageal tablet retention and/or bolus stasis. An abnormal AM-IBP (greater than 20.1 mm Hg) was associated with a higher probability of retaining liquid bolus or barium tablet arrest on TBE and esophageal dysmotility on HRM. This finding supports the recent incorporation of IBP in Chicago Classification v4.0.
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Affiliation(s)
- Katelyn E Madigan
- Department of Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA.
| | - J Shawn Smith
- Department of Medicine, Prisma Health, Greenville School of Medicine, Greenville, USA
| | - Joni K Evans
- Department of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, USA
| | - Steven B Clayton
- Department of Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, 27157, USA.,Department of Medicine, Section on Gastroenterology, Wake Forest School of Medicine, Winston-Salem, USA.,Department of Medicine, Section on Gastroenterology, Greenville School of Medicine, Greenville, USA
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21
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Edeani FO, Kern M, Ulualp K, Kovacic K, Sanvanson P, Mei L, Shaker R. Variables influencing manometric parameters of deglutitive and non-deglutitive upper esophageal sphincter: A study of 89 asymptomatic participants. Neurogastroenterol Motil 2022; 34:e14175. [PMID: 34431179 PMCID: PMC10128622 DOI: 10.1111/nmo.14175] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/19/2021] [Accepted: 04/28/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND High-resolution manometry overcomes limitations imposed by axial and radial asymmetry as well as swallow and respiration-induced movement of the upper esophageal sphincter (UES), allowing for its reliable use in evaluation of dysphagic and reflux patients. The aim of this study was to determine normative values and their variability across position, sex, age, height, weight, BMI, and volume for clinically relevant deglutitive and non-deglutitive UES parameters. METHODS We studied 89 asymptomatic volunteers age 19-90 years, (45 female) during 3-10 repetitions of dry, 5 and 10 ml water swallows at 30-s intervals using high-resolution manometry. KEY RESULTS Upper esophageal sphincter high-pressure zone was longer in men than women and in supine than upright position. UES basal contractile integral and mean basal pressure were higher in supine compared to upright; higher in men than women, inversely correlated with age, correlated positively with height and with weight in the supine position only. UES relaxation duration was longer in upright than in supine position but not affected by age, sex, height, weight, or BMI. It was longer with 5 and 10 ml compared with dry swallows. UES minimum/nadir relaxation and mean relaxation pressures were lower in upright than supine position, increased with increase in age and were higher in men than women. CONCLUSIONS AND INFERENCES Position, sex, age, height, weight, and volume affect some deglutitive and non-deglutitve UES manometric parameters. BMI does not affect the studied manometric parameters. These effects should be taken into consideration in clinical evaluation of UES.
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Affiliation(s)
- Francis O Edeani
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Mark Kern
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Kenan Ulualp
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Karlo Kovacic
- Center for Pediatric Neurogastroenterology, Motility, and Autonomic Disorders, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Patrick Sanvanson
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ling Mei
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Reza Shaker
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
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22
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Kovacic K, Kern M, Pawela L, Shaker R, Sood MR. Characteristics of high-resolution esophageal manometry in children without dysphagia. Neurogastroenterol Motil 2022; 34:e14184. [PMID: 34089288 PMCID: PMC10128867 DOI: 10.1111/nmo.14184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/28/2021] [Accepted: 05/03/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The absence of high-resolution esophageal manometry (HREM) norms in pediatrics limits the assessment of children with dysphagia. This study aimed to describe HREM parameters in a cohort of children without dysphagia. METHODS Children ages 9-16 years with a negative Mayo Dysphagia Questionnaire screen and normal histologic findings underwent HREM after completion of esophagogastroduodenoscopy. Ten swallows of 5 ml 0.45% saline boluses per subject were captured in supine position. Analyzed data included resting and integrated relaxation pressures (IRP) of lower (LES) and upper (UES) esophageal sphincters, peristaltic contractile integrals, transition zone (TZ) breaks, velocities, and lengths associated with proximal and distal esophagus. KEY RESULTS 33 subjects (15 female) with mean (range) age 12.9 (9-16) years completed the study. Two of 330 analyzed swallows failed. The UES mean resting pressure, and its 0.2 s and 0.8 s IRPs were 48.3 (95% CI 12.9) mmHg, 2.9 (95% CI 1.9) mmHg, and 12.1 (95% CI 2.5) mmHg, respectively. The LES mean resting pressure and its 4 s IRP were 29.0 (95% CI 4.0) mmHg and 9.2 (95% CI 1.3) mmHg. The mean proximal (PCI) and distal (DCI) esophageal contractile integrals were 231 (95% CI 54.8) mmHg-s-cm and 1789.3 (95% CI 323.5) mmHg-s-cm, with mean TZ break 0.5 (95% CI 0.3) cm. CONCLUSIONS & INFERENCES This is the first study to describe HREM parameters in children without dysphagia. Most of the reported measurements were significantly different and less variable from reported adult norms. This emphasizes the need for child-specific catheters, norms, and protocols to define pediatric esophageal motility disorders.
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Affiliation(s)
- Karlo Kovacic
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Mark Kern
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Louis Pawela
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Reza Shaker
- Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Manu R Sood
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Medical College of Wisconsin, Milwaukee, WI, USA
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23
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Naguib GG, Hassan M, Elshafie AI, Naguib MG. Esophageal motility abnormalities in Egyptian patients using high resolution esophageal manometry: a descriptive study. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2022. [DOI: 10.1186/s43162-021-00097-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background and aim
For many years, esophageal manometry has been used for assessment of upper gastro-intestinal (GI) symptoms. Chicago classification is the key for diagnosis and managing motility disorders as it is considered as a standardized approach for categorization of esophageal abnormalities. The aim of this study is to analyze types of esophageal motility findings in Egyptian cases who were suffering from upper GI complaints. Methods: This descriptive study included 378 subjects who were suffering from upper GI complaints as dysphagia, vomiting, chest pain and regurgitation in the period between 10/2015–7/2020. Esophageal HRM study was performed for all patients (MMS Laborie device). The catheter was positioned and confirmed passing across the EGJ (esophago-gastric junction) using landmarks. Swallows and resting status were recorded. Anatomical landmarks were placed.
Results
Most of the patients were complaining of upper GI symptoms. Males were 49.2% of cases. Mean age was 41.3. Dysphagia was the prominent symptom while chest pain was the least symptom. Many manometry findings were observed including ineffective motility, achalasia, absent contractility, EGJ outflow obstruction, jackhammer esophagus and normal findings. Type II achalasia was the dominant type in achalasia patients while Type III was the least. LES was normotensive in most of the cases. Hiatus hernia (HH) was detected in 40.2% of the cases.
Conclusion
This is considered the first Egyptian descriptive study to determine the prevalence of esophageal motility abnormalities in Egyptian patients complaining of upper GI symptoms. HRM is very important for patients complaining of upper GI symptoms.
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Sharma P, Yadlapati R. Evaluation of Esophageal Motility and Lessons from Chicago Classification version 4.0. Curr Gastroenterol Rep 2022; 24:10-17. [PMID: 35084643 PMCID: PMC9380285 DOI: 10.1007/s11894-022-00836-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
PURPOSE OF REVIEW Chicago Classification has standardized clinical approach to primary esophageal motility disorders. With new clinical data and advancing treatments, Chicago Classification has undergone multiple revisions to reflect updated findings and enhance diagnostic accuracy. This review will describe the recently published Chicago Classification version 4.0 (CCv4.0), which aimed to enhance diagnostic characterization and limit overdiagnosis of inconclusive esophageal motility diagnoses. RECENT FINDINGS Key revisions outlined in CCv4.0 include (1) a modified standardized HRM study protocol performed in supine and upright positions, (2) recommended ancillary testing and manometric provocation for inconclusive manometric diagnoses (3) the required presence of obstructive symptoms for conclusive diagnoses of esophagogastric junction outflow obstruction, distal esophageal spasm and hypercontractile esophagus, and (4) requirement of confirmatory testing for esophagogastric junction outflow obstruction. These key modifications aim to improve diagnostic accuracy and consistency of clinically relevant esophageal motility disorders, and subsequently clinical outcomes.
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Affiliation(s)
- Priya Sharma
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Rena Yadlapati
- Division of Gastroenterology, University of California, San Diego, ACTRI, Building 1W517, 9500 Gilman Drive MC 0956, La Jolla, CA, 92093, USA.
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Rogers BD, Gyawali CP. Making Sense of Nonachalasia Esophageal Motor Disorders. Gastroenterol Clin North Am 2021; 50:885-903. [PMID: 34717877 DOI: 10.1016/j.gtc.2021.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Achalasia is the prototypical obstructive motor disorder diagnosed using HRM, but non-achalasia motor disorders are often identified in symptomatic patients. The clinical relevance of these disorders are assessed using ancillary HRM maneuvers (multiple rapid swallows, rapid drink challenge, solid swallows) that augment the standard supine HRM evaluation by challenging peristaltic function. Finding obstructive motor physiology in non-achalasia motor disorders may raise the option of invasive management akin to achalasia. Certain non-achalasia disorders, particularly hypermotility disorders, may manifest as epiphenomena seen with esophageal hypersensitivity. Symptomatic management is offered for superimposed reflux disease, psychological disorders, functional esophageal disorders, and behavioral disorders.
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Affiliation(s)
- Benjamin D Rogers
- Division of Gastroenterology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8124, St Louis, MO 63110, USA; Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, 550 South Preston Street, Louisville, KY 40202, USA
| | - C Prakash Gyawali
- Division of Gastroenterology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8124, St Louis, MO 63110, USA.
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26
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Clinical usefulness of esophageal high resolution manometry and adjunctive tests: An update. Dig Liver Dis 2021; 53:1373-1380. [PMID: 33994122 DOI: 10.1016/j.dld.2021.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 12/11/2022]
Abstract
High resolution manometry (HRM), developed from conventional manometry, is the gold standard for assessment of esophageal motor function worldwide. The Chicago Classification, now in its fourth iteration, is the modern standard for HRM categorization of esophageal motility disorders. The HRM protocol has expanded from the original 10 supine swallow standard, to include upright swallows, and provocative maneuvers such as multiple rapid swallows, rapid drink challenge and standardized test meal. Impedance has been incorporated into HRM for visualization of bolus clearance. Futhermore, barium radiography and functional lumen imaging probe complement HRM when evidence of esophagogastric junction obstruction is inconclusive. The biggest impact of HRM is in the improved diagnosis and subtyping of achalasia spectrum disorders, with implications on management. Spastic disorders and absent contractility are better characterized. Within the reflux spectrum, HRM provides definition of morphology and tone of the esophagogastric junction, and assesses integrity of esophageal body peristalsis, which have pathophysiologic implications for reflux and its clearance. HRM provides characterization of behavioral disorders such as supragastric belching and rumination syndrome, which can mimic reflux disease. Thus, HRM has revolutionized the evaluation of esophageal motor function, and has expanded the utility of esophageal manometry in clinical practice.
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Ujiie N, Sato C, Taniyama Y, Koseki K, Takaya K, Okamoto H, Fukutomi T, Unno M, Kamei T. Characteristics of esophageal achalasia in geriatric patients over 75 years of age and outcomes after peroral endoscopic myotomy. Geriatr Gerontol Int 2021; 21:788-793. [PMID: 34250704 DOI: 10.1111/ggi.14235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/04/2021] [Accepted: 06/14/2021] [Indexed: 01/11/2023]
Abstract
AIM As the population ages, the proportion aged ≥75 years is expected to increase. Many studies on peroral endoscopic myotomy (POEM) as treatment for esophageal achalasia have already been reported; however, few studies have been designed on patients aged ≥75 years. The purpose of this study is to describe the characteristics of esophageal achalasia in patients >75 years and to evaluate the outcomes of POEM. METHODS This study included 121 patients who underwent POEM for esophageal achalasia, which was divided into the geriatric (n = 18) group aged ≥75 and the young (n = 103) group ≤74 years. The characteristics of esophageal achalasia and the short-term outcomes after POEM in the geriatric group compared with the young group were retrospectively investigated. RESULTS The median age of the geriatric group was 78 years, and two patients were initially diagnosed with refractory pneumonia, and esophageal achalasia was initially overlooked. The preoperative Eckardt score of the geriatric group was significantly lower than that of the young group (4 vs. 6, P = 0.007), particularly in the regurgitation score. The Eckardt score and integrated relaxation pressure of both groups were significantly improved after POEM (P < 0.001). There were no cases of perioperative complications in the geriatric group. CONCLUSIONS POEM for esophageal achalasia is a safe and effective treatment even in geriatric patients >75 years of age. In geriatric patients with recurrent or intractable pneumonia, it is important to rule out esophageal achalasia. Geriatr Gerontol Int 2021; 21: 788-793.
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Affiliation(s)
- Naoto Ujiie
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chiaki Sato
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yusuke Taniyama
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ken Koseki
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kai Takaya
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Okamoto
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshiaki Fukutomi
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiaki Unno
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takashi Kamei
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
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Wang Z, Yan L, Dai Y, Lu F, Zhang J, Hou M, Liu X. Attention graph convolutional nets for esophageal contraction pattern recognition in high-resolution manometries. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2021.102734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kuribayashi S, Akiyama J, Ikeda H, Nagai K, Hosaka H, Hamada M, Onimaru M, Kawami N, Hayashi K, Iwakiri K, Inoue H, Kusano M, Uraoka T. Utility of a new automated diagnostic program in high-resolution esophageal manometry. J Gastroenterol 2021; 56:633-639. [PMID: 33987747 DOI: 10.1007/s00535-021-01794-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 05/04/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND A new automated diagnostic program for high-resolution esophageal manometry (HREM) has been developed. This diagnostic program could detect locations of landmarks and could make final diagnoses automatically. However, the accuracy of the program is not known. The aim of this study was to evaluate the accuracy of the automated diagnostic program for HREM. METHODS A total of 445 studies were enrolled. An HREM system (Starlet®) was used, and esophageal motility was diagnosed using the Chicago classification v3.0. First, the locations of the upper esophageal sphincter, transition zone, lower esophageal sphincter, esophago-gastric junction, crural diaphragm and stomach were determined, and each swallow was checked manually. Then, the parameters of the Chicago classification were calculated using an analytic program of the Starlet, and diagnoses were made by three experts. Second, all study raw data were analyzed again by the automated diagnostic program. Diagnoses made by the program were compared to those made by experts to evaluate the accuracy of the diagnoses. RESULTS The new diagnostic program could identify the landmarks of each swallow, calculate the parameters and make a final diagnosis within 10 s. The diagnoses made by the automated diagnostic program were not matched to those made by experts in only 10 studies, and the overall accuracy of the new automated diagnostic program thus reached 97.8% (435/445). CONCLUSIONS The new automated diagnostic program for HREM is clinically useful in terms of high diagnostic accuracy and time-saving.
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Affiliation(s)
- Shiko Kuribayashi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
| | - Junichi Akiyama
- Division of Gastroenterology and Hepatology, Center Hospital of the National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Haruo Ikeda
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Kazue Nagai
- Research and Education Center of Health Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Hiroko Hosaka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Mariko Hamada
- Division of Gastroenterology and Hepatology, Center Hospital of the National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Manabu Onimaru
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Kunihiko Hayashi
- Research and Education Center of Health Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Kouto-ku, Tokyo, 135-8577, Japan
| | - Motoyasu Kusano
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan
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30
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Trieu JA, Dua A, Enofe I, Shastri N, Venu M. Population trends in achalasia diagnosis and management: a changing paradigm. Dis Esophagus 2021; 34:6174326. [PMID: 33728431 DOI: 10.1093/dote/doab014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/05/2021] [Accepted: 02/13/2021] [Indexed: 12/11/2022]
Abstract
The Chicago Classification of esophageal motility disorders improved the differentiation of achalasia subtypes and tailored treatment. Heller myotomy (HM) and pneumatic dilation are two established treatments for achalasia. Peroral endoscopic myotomy (POEM) has become a third definitive option and is on the rise. Using the National Inpatient Sample (NIS) database, we evaluated patients hospitalized with achalasia and associated surgical and endoscopic interventions from 2013 to 2017 and compared patients undergoing HM versus POEM. The NIS database was queried to include patients with achalasia. Patients who underwent HM, POEM (only 2017 due to lack of distinct procedure code in 2013), pneumatic dilation, or esophagectomy were identified. Adverse events during the hospitalization were also queried using diagnosis codes. From 2013 to 2017, patients hospitalized with achalasia increased from 16 850 to 19 485. There were reductions in the number of esophageal dilations (10.6-5.4%, P < 0.001) and HM (18.7-13.1%, P < 0.001). In 2017, 580 POEMs were performed. Compared with patients undergoing HM in 2017, patients who had POEM had higher mean age > 64 (P = 0.004), Charlson comorbidity index (P < 0.001), disease severity (P < 0.001), and likelihood of mortality (P < 0.001). There were no differences in length of stay, mortality, or total costs between the HM and POEM groups. Patients hospitalized with achlasia increased from 2013 to 2017, possibly due to the growth and accessibility of high-resolution esophageal manometry. As expertise in POEM increases, the number of POEM performed is anticipated to rise with possible further reductions in other treatment modalities for achalasia.
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Affiliation(s)
- Judy A Trieu
- Division of Gastroenterology and Nutrition, Loyola University Medical Center, Maywood, IL, USA
| | - Arshish Dua
- Division of Gastroenterology and Nutrition, Loyola University Medical Center, Maywood, IL, USA
| | - Ikponmwosa Enofe
- Division of Gastroenterology and Nutrition, Loyola University Medical Center, Maywood, IL, USA
| | - Nikhil Shastri
- Division of Gastroenterology and Nutrition, Loyola University Medical Center, Maywood, IL, USA
| | - Mukund Venu
- Division of Gastroenterology and Nutrition, Loyola University Medical Center, Maywood, IL, USA
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Achem SR, Vazquez-Elizondo G, Fass R. Jackhammer Esophagus: Current Concepts and Dilemmas. J Clin Gastroenterol 2021; 55:369-379. [PMID: 33337637 DOI: 10.1097/mcg.0000000000001472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/23/2020] [Indexed: 12/27/2022]
Abstract
Jackhammer esophagus (JE) is a recently recognized esophageal motility disorder that is characterized by hypercontractile peristalsis. More than 500 cases have been reported in the literature. Among patients referred for esophageal motility disorders, the prevalence of JE ranges from 0.42% to 9%, with most series describing a prevalence of 2% to 4%. Most cases are women (60.5%). The mean reported age of patients with JE is 65.2 years, and patients commonly have dysphagia (62.8%). Reflux symptoms occur in ∼40% of patients, and chest pain affects more than one-third of patients (36.4%). JE is a heterogenous disorder that is associated with several conditions, including obesity, opioid use, lung transplantation, eosinophilic infiltration of the esophagus, neoplasia, and systemic diseases. The cause and pathogenesis remain unknown, but several observations suggest that it is the result of multiple conditions that likely precipitate increased excitation and abnormal inhibition of neuromuscular function. The natural course of JE also is unknown, but progression to achalasia has been observed in a few patients. Treatment is challenging, in part because of the insufficient understanding of the disorder's underlying mechanisms. Various therapeutic modalities have been used, ranging from observation only to pharmacologic and endoscopic interventions (eg, botulinum toxin injection) to peroral endoscopic myotomy. Treatment efficacy remains largely anecdotal and insufficiently studied.
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Affiliation(s)
- Sami R Achem
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL
| | | | - Ronnie Fass
- Division of Gastroenterology and Hepatology, Metro Health Medical Center, Cleveland, OH
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32
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Chicago Classification of esophageal motility disorders: Past, present, and future. Indian J Gastroenterol 2021; 40:120-130. [PMID: 34009561 DOI: 10.1007/s12664-021-01162-y] [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: 02/12/2021] [Accepted: 03/01/2021] [Indexed: 02/04/2023]
Abstract
The Chicago Classification (CC) is a dynamic, evolving classification scheme created by a diverse group of international esophageal experts. Its application has transformed the way esophageal motor data are used to define motility disorders, each iteration seeking to advance, simplify, and standardize the way clinicians worldwide diagnose esophageal dysmotility. The most recent update, CC version 4.0 (CCv4.0), emphasizes the importance of clinical context and distinguishes clinically relevant, conclusive manometric diagnoses from irrelevant manometric observations. Future iterations of CC may refine the classification of spastic esophageal disorders and incorporate machine learning and physics-based modeling to improve metrics.
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Pesce M, Sweis R. Advances and caveats in modern achalasia management. Ther Adv Chronic Dis 2021; 12:2040622321993437. [PMID: 33786159 PMCID: PMC7958157 DOI: 10.1177/2040622321993437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/15/2021] [Indexed: 12/18/2022] Open
Abstract
Achalasia is a rare esophageal motility disorder characterized by the incomplete
relaxation of the lower esophageal sphincter (LES) and impaired peristaltic
activity. The advent of high-resolution manometry (HRM) and the rapidly evolving
role of therapeutic endoscopy have revolutionized the approach to the diagnosis
and management of achalasia patients in the last decade. With advances in HRM
technology and methodology, fluoroscopy and EndoFlip, achalasia can be
differentiated into therapeutically meaningful phenotypes with a high degree of
accuracy. Further, the newest treatment option, per-oral endoscopic myotomy
(POEM), has become a staple therapy following the last 10 years of experience,
and recent randomized trials appear to show no difference between POEM, graded
pneumatic dilatation and surgical Heller myotomy in terms of short- and
long-term efficacy or complication rate. On the other hand, how treatment
outcomes are measured as well as the risk of reflux following therapy remain
areas of contention. This review aims to summarize the recent advancements in
achalasia testing and therapy, describes the recent randomized clinical trials
as well as their potential setbacks, and touches on the future of personalizing
achalasia treatment.
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Affiliation(s)
- Marcella Pesce
- Department of Clinical Medicine and Surgery, University "Federico II" of Naples, Naples, Italy
| | - Rami Sweis
- University College London Hospital, GI Services, 235 Euston Rd, London, NW1 2BU, UK
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Cha B, Jung KW. [Diagnosis of Dysphagia: High Resolution Manometry & EndoFLIP]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2021; 77:64-70. [PMID: 33632996 DOI: 10.4166/kjg.2021.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/19/2021] [Accepted: 02/19/2021] [Indexed: 12/27/2022]
Abstract
Esophageal motility disorders were re-defined when high-resolution manometry was employed to better understand their pathogenesis. Newly developed parameters including integrated relaxation pressure (IRP), distal contractile integral, and distal latency showed better diagnostic yield compared with previously used conventional parameters. Therefore, Chicago classification was formulated, and its diagnostic cascade begins by assessing the IRP value. However, IRP showed limitation due to its inconsistency, and other studies have tried to overcome this. Recent studies showed that provocative tests, supplementing the conventional esophageal manometry protocol, have improved the diagnostic yield of the esophageal motility disorders. Therefore, position change from supine to upright, solid or semi-solid swallowing, multiple rapid swallows, and the rapid drink challenge were newly added to the manometry protocol in the revised Chicago classification version 4.0. Impedance planimetry enables measurement of bag cross-sectional area at various locations. The functional lumen imaging probe (FLIP) has been applied to assess luminal distensibility. This probe can also measure pressure, serial cross-sectional areas, and tension-strain relationship. The esophagogastric junction's distensibility is decreased in achalasia. Therefore, EndoFLIP can be used to assess contractility and distensibility of the esophagus in the patients with achalasia, including repetitive antegrade or retrograde contractions. EndoFLIP can detect achalasia patients with relatively low IRP, which was difficult to diagnose using the current high-resolution manometry. EndoFLIP also provides information on the contractile activity and distensibility of the esophageal body in patients with achalasia. The use of provocative tests, newly added in Chicago classification 4.0 version, and EndoFLIP can expand understanding of esophageal motility disorders.
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Affiliation(s)
- Boram Cha
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kee Wook Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Kovacs B, Masuda T, Bremner RM, Mittal SK. Clinical spectrum and presentation of patients with absent contractility. Ann Gastroenterol 2021; 34:331-336. [PMID: 33948057 PMCID: PMC8079877 DOI: 10.20524/aog.2021.0583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/18/2020] [Indexed: 01/09/2023] Open
Abstract
Background Primary absent contractility is an uncommon finding on high-resolution manometry (HRM). The goal of this study was to describe the clinical spectrum and presentation of patients with primary absent contractility. Methods We queried a prospectively maintained esophageal testing registry to identify patients with absent contractility who presented between August 2016 and September 2018. Patients with poor quality studies and patients with insufficient clinical records as well as those with a history of previous foregut surgery or esophagram consistent with achalasia were excluded. Results A total of 2068 patients underwent HRM during the study period. Of these, 66 patients (3.2%) met the inclusion criteria and formed the study cohort; 52 patients in the cohort had an upper gastrointestinal contrast study, 50 had endoscopy, and 51 completed a foregut symptom questionnaire. Thirty-eight patients (57.6%) were women. The mean age was 56.6±13.86 years, and the mean body mass index was 26.37±5.7 kg/m2. Almost half of the patients (29/66, 43.9%) were undergoing lung transplant evaluation, and 22 patients (37.3%) had a history of autoimmune immune-mediated or myopathic diseases. On the symptom questionnaire, 42 of 51 patients (82.3%) reported heartburn, 24 of 51 (47.1%) reported dysphagia, and 23 of 51 patients (45.1%) reported both. On ambulatory pH monitoring, 23 of 37 patients (62.2%) had pathological esophageal acid exposure (acid exposure time >6%). Conclusions Absent contractility on HRM is uncommon and is frequently associated with connective tissue, myopathic or autoimmune disorders. The usual clinical presentation is reflux, dysphagia or both.
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Affiliation(s)
- Balazs Kovacs
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center (Balazs Kovacs, Takahiro Masuda, Ross M. Bremner, Sumeet K. Mittal)
| | - Takahiro Masuda
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center (Balazs Kovacs, Takahiro Masuda, Ross M. Bremner, Sumeet K. Mittal).,Creighton University School of Medicine, Phoenix Regional Campus (Takahiro Masuda, Sumeet K. Mittal), Phoenix, AZ, USA
| | - Ross M Bremner
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center (Balazs Kovacs, Takahiro Masuda, Ross M. Bremner, Sumeet K. Mittal)
| | - Sumeet K Mittal
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center (Balazs Kovacs, Takahiro Masuda, Ross M. Bremner, Sumeet K. Mittal).,Creighton University School of Medicine, Phoenix Regional Campus (Takahiro Masuda, Sumeet K. Mittal), Phoenix, AZ, USA
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Diagnostic Criteria for Gastro-esophageal Reflux Following Sleeve Gastrectomy. Obes Surg 2021; 31:1464-1474. [PMID: 33491160 PMCID: PMC8012318 DOI: 10.1007/s11695-020-05152-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/15/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022]
Abstract
Background Gastro-esophageal reflux disease (GERD) post-sleeve gastrectomy (SG) is a controversial issue and diagnostic dilemma. Strong heterogeneity exists in the assessment of reflux post-SG, and better diagnostic tools are needed to characterize symptomatic reflux. We aimed to determine the discriminant factors of symptomatic reflux and establish diagnostic thresholds for GERD following SG. Materials and Methods Patients post-SG were categorized into asymptomatic and symptomatic cohorts and completed validated symptom questionnaires. All patients underwent stationary esophageal manometry and 24-h ambulatory pH monitoring. Univariate and multivariate analyses were conducted to determine the strongest discriminant factors for GERD. Results Baseline characteristics of the asymptomatic cohort (n = 48) and symptomatic cohort (n = 76) were comparable. The median post-operative duration was 7.3 (14.1) vs 7.5 (10.7) months (p = 0.825). The symptomatic cohort was more female predominant (90.8 vs 72.9%, p = 0.008). Reflux scores were significantly higher in the symptomatic group (36.0 vs 10.5, p = 0.003). Stationary manometry parameters were similar, including hiatus hernia prevalence and impaired esophageal motility. The symptomatic cohort had significantly higher total acid exposure, especially while supine (11.3% vs 0.6%, p < 0.001). Univariate and multivariate regressions delineated reflux score and supine acid exposure as discriminant factors for symptomatic reflux. The thresholds for distinguishing symptomatic reflux are as follows: reflux score of 11.5 (sensitivity 84.0%, specificity 68.2%) and supine acid exposure of 2.65% (sensitivity 67.1%, specificity 70.8%). Conclusion A reflux score of 11.5 or more or supine acid exposure of 2.65% or more should be considered diagnostic in defining symptomatic reflux following SG.
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Rieder E, Fernandez-Becker NQ, Sarosiek J, Guillaume A, Azagury DE, Clarke JO. Achalasia: physiology and diagnosis. Ann N Y Acad Sci 2020; 1482:85-94. [PMID: 33140485 DOI: 10.1111/nyas.14510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 12/18/2022]
Abstract
Achalasia is a rare motility disorder with incomplete relaxation of the lower esophageal sphincter and ineffective contractions of the esophageal body. It has been hypothesized that achalasia does not result from only one pathway but rather involves a combination of infectious, autoimmune, and familial etiological components. On the basis of other observations, a novel hypothesis suggests that a muscular form of eosinophilic esophagitis is involved in the pathophysiology of achalasia in some patients. This appears to progressively diminish the myenteric plexus at stage III, gradually destroy it at stage II, and finally eliminate it at stage I, the most advanced and final stage of achalasia. Although high-resolution manometry has identified these three different types of achalasia, another subset of patients with a normal-appearing sphincter relaxation has been proposed. Provocative maneuvers, such as the rapid drinking challenge, have recently been demonstrated to improve diagnosis in certain borderline patients, but have to be studied in more detail. However, whether the different types of achalasia will have a long-term impact on tailored therapies is still a matter of debate. Additionally, novel aspects of the standard timed barium swallow appear to be an important adjunct of diagnosis, as it has been shown to have a diagnostic as well as a predictive value.
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Affiliation(s)
- Erwin Rieder
- Department of Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Jerzy Sarosiek
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Paul L. Foster School of Medicine, El Paso, Texas
| | - Alexandra Guillaume
- Gastrointestinal Motility Center, Renaissance School of Medicine, Stony Brook University Hospital, Stony Brook, New York
| | - Dan E Azagury
- Minimally Invasive & Bariatric Surgery, Stanford University School of Medicine, Palo Alto, California
| | - John O Clarke
- Department of Medicine, Stanford University, Redwood City, California
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Massey BT. Clinical Functional Lumen Imaging Probe Testing in Esophageal Disorders: A Need for Better Quality Evidence. Am J Gastroenterol 2020; 115:1799-1801. [PMID: 33156098 DOI: 10.14309/ajg.0000000000000974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In their article "Use of the Functional Lumen Imaging Probe in Clinical Esophagology," Savarino et al. report the outcomes of a Grading of Recommendations Assessment, Development, and Evaluation analysis performed by experts in the use of functional lumen imaging probe (FLIP) evaluation of esophageal disorders. For essentially all clinical indications, the recommendation for use was conditional with a very low quality of evidence. FLIP is an expensive, invasive technology examining limited aspects of esophageal function. Its role in complementing or replacing existing technology is uncertain, particularly when compared with manometric testing with additional provocative studies. Performing properly designed studies to demonstrate FLIP's true effectiveness and cost-effectiveness will be costly.
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Affiliation(s)
- Benson T Massey
- GI Manometry Laboratory, Division of Gastroenterology & Hepatology, Medical College of Wisconsin, Hub for Collaborative Medicine, Milwaukee, Wisconsin, USA
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Distal contractile integral measurement and vascular compression in the esophagus: a problem unsolved? Esophagus 2020; 17:502-507. [PMID: 32356213 DOI: 10.1007/s10388-020-00740-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 04/14/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Distal contractile integral (DCI) is influenced by factors other than esophageal smooth muscle contractility, such as intrabolus pressure and vascular and respiratory movements' artifacts. We aimed to determine the size of the contribution of pressures generated by vascular compression on the esophagus to the DCI measured in HRM recordings in symptomatic patients. METHODS HRM manometry recordings obtained from 383 subjects referred to the GI motility laboratory at a tertiary center (2012-2016) were evaluated by visual inspection for evidence of strong vascular compression (SVC) of the esophagus. Clinical, demographic, manometric, and serologic data for Chagas disease were obtained. Subjects were classified, respectively, as asymptomatics (ASYM) or symptomatics (SYMP). DCI and SVC-DCI were measured, and the SVC-DCI/DCI ratio was expressed as a percentage and the difference between DCI and SVC-DCI (neat-DCI) was calculated. DCI, SVC-DCI, SVC-DCI/DCI % and neat-DCI from SYMP and ASYM were compared. RESULTS SVC was conspicuous in 42 of 383 subjects (11%). In 33 subjects, SVC was detected only in supine position. SVC was localized in middle esophagus in 21 subjects (50%), in distal esophagus in 12 subjects (29%) and in both regions in 9 subjects (21%). In 9 subjects, SVC vanished from the swallowing window analysis (21%). CONCLUSIONS SVC is a common finding in esophageal HRM study, particularly in the supine position. Occasionally, its contribution to DCI value is sufficiently great to masquerade esophageal hypocontractility. Different manometric protocols may be required in patients with SVC.
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Circumferential Heller myotomy can relieve chest pain in patients with achalasia: a prospective clinical trial. Esophagus 2020; 17:468-476. [PMID: 32248355 DOI: 10.1007/s10388-020-00738-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/28/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Noncardiac chest pain often coexists with dysphagia in patients diagnosed with achalasia. The current standard treatment for achalasia, laparoscopic Heller myotomy with Dor fundoplication, has an insufficient effect on noncardiac chest pain. The aim of this study is to investigate the efficacy of circumferential Heller myotomy on esophageal chest pain in patients with achalasia. METHODS Twenty patients diagnosed with achalasia who complained of noncardiac chest pain were recruited and underwent circumferential Heller myotomy. Using an institutional achalasia database, we randomly selected 60 patients who underwent standard laparoscopic Heller myotomy with Dor fundoplication, based on a 3-to-1 propensity score-matching analysis. We compared surgical outcomes between the circumferential Heller myotomy and the laparoscopic Heller myotomy with Dor fundoplication groups. RESULTS Patients undergoing circumferential Heller myotomy had a higher rate of postoperative noncardiac chest pain relief than the laparoscopic Heller myotomy with Dor fundoplication group [95% (19/20) vs. 75% (45/60), p = 0.045]. No differences in dysphagia and vomiting were found between groups (p = 0.783 and p = 0.645, respectively). Patients in the circumferential Heller myotomy group had significantly better esophageal clearance. The prevalence of reflux endoscopic esophagitis was higher in the circumferential Heller myotomy group than in the control group [35.0% (7/20) vs. 10.0% (6/60), p = 0.015]. CONCLUSIONS There is promising early evidence that circumferential Heller myotomy may be effective in the treatment of achalasia-related chest pain. Further research, including larger randomized studies with long-term follow-up, is warranted.
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Johari Y, Wickremasinghe A, Kiswandono P, Yue H, Ooi G, Laurie C, Hebbard G, Beech P, Yap K, Brown W, Burton P. Mechanisms of Esophageal and Gastric Transit Following Sleeve Gastrectomy. Obes Surg 2020; 31:725-737. [PMID: 32964369 DOI: 10.1007/s11695-020-04988-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Sleeve gastrectomy (SG) patients have substantially altered anatomy. The mechanism of rapid gastric emptying and the role of esophageal contractile function in esophago-gastric transit has not been defined. We aimed to determine the mechanisms of esophago-gastric transit and role of esophageal function following sleeve gastrectomy. METHODS Prospective study of twenty-six asymptomatic participants post SG underwent nuclear scintigraphy and high-resolution manometry. Fourteen had semi-solid stress barium to model the emptying process. Concurrent video fluoroscopy and manometry were performed on 7 participants. RESULTS Demographic data are as follows: age 45.3 ± 15.0 years, 73.1% female, excess weight loss 62.2 ± 28.1% at 8 months. Scintigraphy showed rapid gastric emptying (24.4 ± 11.4 vs. 75.80 ± 45.19 min in control, p < 0.001) with 35.24 ± 17.12% of bolus transited into small bowel on initial frame. Triggered deglutitive reflux was common (54.4% vs. 18.2%, p = 0.017). Stress barium delineated separate vertical and antral gastric compartments with cyclical emptying of 8 stages, including reflux-induced repeated esophageal peristalsis. During manometry, ramping effects were noted, with sequential swallows producing sustained isobaric pressurizations in proximal stomach (33.6 ± 29.5 mmHg). Video fluoroscopy showed individual esophageal peristalsis generating pressurizations at 5.0 ± 1.4 cm below lower esophageal sphincter (LES), at amplitude of 31.6 ± 13.1 mmHg, associated with intragastric transit. Pressurizations were sustained for 17.3 ± 8.2 s, similar to the prolonged LES contraction (18.5 ± 9.0 s, p = 0.355). CONCLUSIONS Repeated esophageal peristaltic contractions induced isobaric pressurization of proximal stomach, thus providing the drive to pressurize and empty the vertical compartment of the gastric sleeve. Transit following SG appeared to be esophageal-mediated and followed a distinct cycle with strong associations with reflux.
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Affiliation(s)
- Yazmin Johari
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia. .,Oesophago-gastric and Bariatric Unit, Department of General Surgery, The Alfred Hospital, Melbourne, Australia.
| | - Anagi Wickremasinghe
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Pradipta Kiswandono
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Helen Yue
- Department of Nuclear Medicine, The Alfred Hospital, Melbourne, Australia
| | - Geraldine Ooi
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Oesophago-gastric and Bariatric Unit, Department of General Surgery, The Alfred Hospital, Melbourne, Australia
| | - Cheryl Laurie
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Geoffrey Hebbard
- Department of Gastroenterology, Royal Melbourne Hospital and University of Melbourne, Melbourne, Australia
| | - Paul Beech
- Department of Nuclear Medicine, The Alfred Hospital, Melbourne, Australia
| | - Kenneth Yap
- Department of Nuclear Medicine, The Alfred Hospital, Melbourne, Australia
| | - Wendy Brown
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Oesophago-gastric and Bariatric Unit, Department of General Surgery, The Alfred Hospital, Melbourne, Australia
| | - Paul Burton
- Department of Surgery, Central Clinical School, Monash University, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Oesophago-gastric and Bariatric Unit, Department of General Surgery, The Alfred Hospital, Melbourne, Australia
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Davidson K, O'Rourke A, Fortunato JE, Jadcherla S. The Emerging Importance of High-Resolution Manometry in the Evaluation and Treatment of Deglutition in Infants, Children, and Adults: New Opportunities for Speech-Language Pathologists. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2020; 29:945-955. [PMID: 32650654 DOI: 10.1044/2019_ajslp-19-00067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Purpose Diagnostic precision and prolonged testing before, during, and after deglutition is lacking across the age spectrum. Conventional clinical evaluation and radiologic methods are widely used but are reliant on human perception, carrying the risk of subjectivity. High-resolution manometry (HRM) is an emerging clinical and research tool and has the capability to objectively measure the dynamics, kinetics, regulatory, and correlation aspects of deglutition. Method We review the basics of manometry and the methods, metrics, and applications of this technology across the age spectrum. The goal is to aid in the translation of HRM from research tool to clinical use by the speech-language pathologist in the development of better global plans to understand normal and abnormal deglutition. Results HRM is an easily adaptable precise diagnostic tool that can be used to examine deglutition phases and abnormalities across the age spectrum from neonates to nonagenarians and can be a valuable adjunct to specialty evaluation of persistent deglutition disorders. Conclusion New opportunities will emerge upon further research for larger-scale translation once normative data and recognition of biomarkers of abnormality are ascertained.
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Affiliation(s)
- Kate Davidson
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston
| | - Ashli O'Rourke
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston
| | - John E Fortunato
- Hypertension and Vascular Research Center, Wake Forest School of Medicine, Winston-Salem, NC
- Division of Gastroenterology, Hepatology and Nutrition, Ann & Robert H. Lurie Children's Hospital of Chicago, IL
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Sudarshan Jadcherla
- Innovative Infant Feeding Disorders Research Program, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH
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Wu PI, Sloan JA, Kuribayashi S, Gregersen H. Impedance in the evaluation of the esophagus. Ann N Y Acad Sci 2020; 1481:139-153. [PMID: 32557676 DOI: 10.1111/nyas.14408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/09/2020] [Accepted: 05/14/2020] [Indexed: 12/16/2022]
Abstract
The aim of this paper is to review esophageal electrical impedance technologies and to discuss the use of these technologies for physiological measurements, diagnostics, and therapy of esophageal disease. In order to develop a better understanding of the pathophysiology of and improve the diagnosis of esophageal disorders, such as gastroesophageal reflux disease (GERD) and achalasia, several new diagnostic tests, including intraluminal impedance, esophageal mucosal impedance, and the functional luminal imaging probe, have been developed. These technologies have proven valuable for assessment of the esophagus in recent years. They provide information on esophageal flow properties, mucosal integrity, lumen shape, and distensibility in esophageal disorders, in particular for GERD and achalasia. Despite their promise and novel clinical studies, the potential of these technologies has been far from realized. New multidisciplinary approaches will contribute to our understanding and interpretation of esophageal impedance data and disease mechanisms.
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Affiliation(s)
- Peter I Wu
- Department of Gastroenterology and Hepatology, St George Hospital, University of New South Wales, Sydney, New South Wales, Australia
| | - Joshua A Sloan
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Shiko Kuribayashi
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Hans Gregersen
- GIOME, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
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Samanci C, Onal Y, Korman U. Videofluoroscopic and Manometric Evaluation of Oropharyngeal and Esophageal Motility Disorders. Curr Med Imaging 2020; 16:65-69. [PMID: 31989895 DOI: 10.2174/157340561501190611154916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 03/11/2019] [Accepted: 04/09/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Esophageal motility studies are performed in patients who have dysphagia that is not explained by stenosis. Diagnosis can be challenging and requires expertise in the interpretation of tests and symptoms. AIMS Our aim is to investigate the diagnostic value of videofluoroscopic swallowing study (VFSS) in combination with esophageal manometry. STUDY DESIGN This study has a prospective study design. METHODS 73 patients with dysphagia underwent videofluoroscopy in a standing position. Each subject swallowed barium boluses and findings were correlated with manometry findings. RESULTS The study cohort was categorized into five groups according to their disease as achalasia (31.1%), presbyesophagus (4.1%), scleroderma (5.5%), neurogenic dysphagia (6.8%), and other diseases (54.4%), which included gastroesophageal reflux, diffuse esophageal spasm, cricopharyngeal achalasia, and diseases with nonspecific VFSS patterns. When evaluating VFSS, the perfect agreement was observed between two observers in the final diagnosis. (kappa: 0.91, p<0,001). CONCLUSION Although it does not replace manometry, VFSS is important as an additional useful imaging method in EMDs.
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Affiliation(s)
- Cesur Samanci
- Department of Radiology, Sultan Abdulhamid Han Training and Research Hospital, Haydarpasa, Istanbul, Turkey
| | - Yilmaz Onal
- Department of Radiology, Fatih Sultan Mehmet Training and Research Hospital, Atasehir, Istanbul, Turkey
| | - Ugur Korman
- Department of Radiology, Medical Faculty, Istanbul University Cerrahpasa, Kocamustafapasa, Istanbul, Turkey
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Carrington EV, Heinrich H, Knowles CH, Fox M, Rao S, Altomare DF, Bharucha AE, Burgell R, Chey WD, Chiarioni G, Dinning P, Emmanuel A, Farouk R, Felt‐Bersma RJF, Jung KW, Lembo A, Malcolm A, Mittal RK, Mion F, Myung S, O’Connell PR, Pehl C, Remes‐Troche JM, Reveille RM, Vaizey CJ, Vitton V, Whitehead WE, Wong RK, Scott SM. The international anorectal physiology working group (IAPWG) recommendations: Standardized testing protocol and the London classification for disorders of anorectal function. Neurogastroenterol Motil 2020; 32:e13679. [PMID: 31407463 PMCID: PMC6923590 DOI: 10.1111/nmo.13679] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/25/2019] [Accepted: 07/02/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND This manuscript summarizes consensus reached by the International Anorectal Physiology Working Group (IAPWG) for the performance, terminology used, and interpretation of anorectal function testing including anorectal manometry (focused on high-resolution manometry), the rectal sensory test, and the balloon expulsion test. Based on these measurements, a classification system for disorders of anorectal function is proposed. METHODS Twenty-nine working group members (clinicians/academics in the field of gastroenterology, coloproctology, and gastrointestinal physiology) were invited to six face-to-face and three remote meetings to derive consensus between 2014 and 2018. KEY RECOMMENDATIONS The IAPWG protocol for the performance of anorectal function testing recommends a standardized sequence of maneuvers to test rectoanal reflexes, anal tone and contractility, rectoanal coordination, and rectal sensation. Major findings not seen in healthy controls defined by the classification are as follows: rectoanal areflexia, anal hypotension and hypocontractility, rectal hyposensitivity, and hypersensitivity. Minor and inconclusive findings that can be present in health and require additional information prior to diagnosis include anal hypertension and dyssynergia. CONCLUSIONS AND INFERENCES This framework introduces the IAPWG protocol and the London classification for disorders of anorectal function based on objective physiological measurement. The use of a common language to describe results of diagnostic tests, standard operating procedures, and a consensus classification system is designed to bring much-needed standardization to these techniques.
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Affiliation(s)
| | | | | | - Mark Fox
- University of ZürichZürichSwitzerland
| | - Satish Rao
- Medical College of GeorgiaAugustaGeorgiaUSA
| | | | | | - Rebecca Burgell
- Monash University and Alfred HealthMelbourneVictoriaAustralia
| | | | | | | | | | - Ridzuan Farouk
- National University Hospital SingaporeSingapore CitySingapore
| | | | | | | | - Allison Malcolm
- University of Sydney and Royal North Shore HospitalSydneyNew South WalesAustralia
| | | | - Franҫois Mion
- Université de Lyon et Hospices Civils de LyonLyonFrance
| | | | | | - Christian Pehl
- Krankenhaus Vilsbiburg and Technical University MunichMunichGermany
| | | | | | | | | | | | - Reuben K. Wong
- National University Hospital SingaporeSingapore CitySingapore
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Abstract
GOALS Awareness of functional esophagogastric junction outflow obstruction (fEGJOO) has increased, but because there is no consensus on its management, we performed a systematic review of the literature to explore treatment strategies and outcomes. BACKGROUND EGJOO is a heterogenous disorder defined by high-resolution manometry parameters of elevated integrated relaxation pressure with preserved esophageal peristalsis. The etiology may be mechanical obstruction or idiopathic, the latter being fEGJOO. STUDY The PubMed/MEDLINE, Embase, and the Cochrane library electronic databases were searched through June 2018 for all studies of adult patients describing a treatment strategy for fEGJOO or incomplete lower esophageal sphincter relaxation. The search strategy yielded 1792 studies and 8 (0.4%) met inclusion criteria. RESULTS All but one included studies were retrospective (n=184 patients). There were 5 interventions described, with botulinum toxin (Botox) injection (n=69) and expectant management (n=82) the most frequently reported, with success rates of 58% and 54%, respectively. There was substantial heterogeneity among patients and treatments were not directly compared, though reported symptom resolution was similar among all strategies with a mean follow-up time of 15 months. CONCLUSIONS There are a variety of management strategies available for fEGJOO and some patients may not require any intervention. However, among 4 potential approaches aimed at disrupting lower esophageal sphincter hypertonicity, the largest existing evidence base supports either a therapeutic challenge of Botox injection or watchful waiting. Ultimately, these data indicate the need for further study with controlled trials to identify a definitive approach.
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Schizas D, Kapsampelis P, Tsilimigras DI, Kanavidis P, Moris D, Papanikolaou IS, Karamanolis GP, Theodorou D, Liakakos T. The 100 most cited manuscripts in esophageal motility disorders: a bibliometric analysis. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:310. [PMID: 31475180 DOI: 10.21037/atm.2019.06.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background The use of bibliometrics can help us identify the most impactful articles on a topic or scientific discipline and their influence on clinical practice. We aimed to identify the 100 most cited articles covering esophageal motility disorders and examine their key characteristics. Methods The Web of Science database was utilized to perform the search, using predefined search terms. The returned dataset was filtered to include full manuscripts written in the English language. After screening, we identified the 100 most cited articles and analyzed them for title, year of publication, names of authors, institution, country of the first author, number of citations and citation rate. Results The initial search returned 29,521 results. The top 100 articles received a total of 20,688 citations. The most cited paper was by Inoue et al. (665 citations) who first described peroral endoscopic myotomy (POEM) for treating achalasia. The article with the highest citation rate was the third version of the Chicago Classification system, written by Kahrilas and colleagues. Gastroenterology published most papers on the list (n=32) and accrued the highest number of citations (6,675 citations). Peter Kahrilas was the most cited author (3,650 citations) and, along with Joel Richter, authored the highest number of manuscripts (n=14). Most articles were produced in the USA (n=66) between the years 1991 and 2000 (n=32). Conclusions By analyzing the most influential articles, this work is a reference on the articles that shaped our understanding of esophageal motility disorders, thus serving as a guide for future research.
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Affiliation(s)
- Dimitrios Schizas
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Panagiotis Kapsampelis
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Diamantis I Tsilimigras
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Prodromos Kanavidis
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Dimitrios Moris
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Ioannis S Papanikolaou
- Hepatogastroenterology Unit, Second Department of Internal Medicine and Research Institute, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - Georgios P Karamanolis
- Gastroenterology Unit, Second Department of Surgery, National and Kapodistrian University of Athens, Aretaieio University Hospital, Athens, Greece
| | - Dimitrios Theodorou
- First Propedeutic Department of Surgery, National and Kapodistrian University of Athens, Hippocration General Hospital, Athens, Greece
| | - Theodore Liakakos
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
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Liu L, Li S, Zhu K, Yu W, Wang H, Guo J, Gao H. Relationship between esophageal motility and severity of gastroesophageal reflux disease according to the Los Angeles classification. Medicine (Baltimore) 2019; 98:e15543. [PMID: 31083209 PMCID: PMC6531043 DOI: 10.1097/md.0000000000015543] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The current study aimed to investigate the relationship between the severity of gastroesophageal reflux disease (GERD) according to the Los Angeles (LA) classification and esophageal motility using high-resolution manometry (HRM) and 24-hour esophageal pH monitoring.We examined 124 patients with GERD from January 2016 to June 2018. The LA classification of each patient was determined by endoscopy. HRM was performed by the intraluminal water infusion method. HRM and 24-hour esophageal pH monitoring parameters of the patients were studied and statistically compared.On HRM examination, GERD symptoms were found to be associated with worsened distal contractile integral (DCI), ineffective esophageal motility (IEM), peristalsis break (PB), lower esophageal sphincter (LES) pressure, and the 4-second integrated relaxation pressure (IRP4s) of LES pressure along with the grade of LA classification, especially in patients having grade C and D GERD who had transverse mucosal breaks. The 24-hour pH monitoring study revealed that patients classified as having grade C or D GERD had an esophageal pH < 4.0 for a longer time than those with grade O, A, or B GERD. Similar results were found regarding the duration of the longest reflux event, the number of reflux episodes longer than 5 minutes, and the number of reflux episodes. Patients with higher grade esophagitis had higher De Meester scores, which suggested greater esophageal acid exposure. Hiatal hernia (HH) was more closely related to LES pressure, IRP4s, and acid exposure, whereas DCI, IEM, and PB were not statistically different between patients with GERD with and without HH.Patients with severe esophagitis may have motor dysfunction not only in the LES but also in the esophageal body, with resulting increased esophageal acid exposure, which causes esophagitis. Low LES pressure might be the main reason that patients with HH develop esophagitis. GERD without HH may be due to a variety of motor dysfunctions.
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Affiliation(s)
- Lan Liu
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Shuai Li
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Kongxi Zhu
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Weihua Yu
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Hongjuan Wang
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Jianqiang Guo
- Department of Gastroenterology, the Second Hospital of Shandong University
| | - Hongwei Gao
- Department of Trauma and Orthopaedics, the Second Hospital of Shandong University, Shandong Province, People's Republic of China
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Clayton SB, Shin CM, Ewing A, Blonski W, Richter J. Pneumatic dilation improves esophageal emptying and symptoms in patients with idiopathic esophago-gastric junction outflow obstruction. Neurogastroenterol Motil 2019; 31:e13522. [PMID: 30536798 DOI: 10.1111/nmo.13522] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/05/2018] [Accepted: 11/08/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Idiopathic Esophago-gastric outflow obstruction (EGJOO) is a new clinical entity resulting in delayed esophageal emptying secondary to a poorly relaxing lower esophageal sphincter. Little is known about treatment outcomes of idiopathic EGJOO patients. The aim of this study was to investigate the clinical response of pneumatic dilation (PD) in idiopathic EGJOO patients with a standing barium column and/or with pill arrest on timed barium esophagram (TBE) before and after undergoing PD. METHODS Idiopathic EGJOO patients with retained liquid barium on TBE at 1 minute and/or with pill arrest in esophagus at 5 minutes were included. Patients were treated with PD and evaluated with post-procedural TBE. RESULTS A total of 33 patients with Idiopathic EGJOO and poor esophageal emptying on TBE were treated with PD. 67% of Idiopathic EGJOO patients reported subjective symptom relief, 18% improved and symptoms later recurred, 6% were lost to follow up, and 9% reported no change. TBE results of pre-PD showed 1 minute average barium column height of 11.0 cm and 1 minute barium column width of 1.7 cm. There was significant decrease in 1 minute liquid barium column height and width (P < 0.001 and <0.001, respectively) as well as significant improvement in pill passing (P < 0.006) after undergoing PD. No complications occurred after PD. CONCLUSION PD is an effective initial treatment for Idiopathic EGJOO patients with abnormal TBE. Pneumatic dilation relieved symptoms and improved esophageal emptying in Idiopathic EGJOO patients on TBE.
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Affiliation(s)
- Steven B Clayton
- Department of Internal Medicine, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina
| | - Claire M Shin
- Department of Medicine, University of South Carolina School of Medicine Greenville, Greenville, South Carolina
| | - Alex Ewing
- Department of Medicine, University of South Carolina School of Medicine Greenville, Greenville, South Carolina.,Greenville Health System, Greenville, South Carolina
| | - Wojciech Blonski
- Department of Internal Medicine, Division of Digestive Diseases, University of South Florida, Tampa, Florida
| | - Joel Richter
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Joy McCann Culverhouse Center for Swallowing Disorders, University of South Florida, Tampa, Florida
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Yadlapati R, Furuta GT, Menard-Katcher P. New Developments in Esophageal Motility Testing. ACTA ACUST UNITED AC 2019; 17:76-88. [DOI: 10.1007/s11938-019-00218-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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