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Zhang L, Khashab MA. Pyloric-directed therapy for gastroparesis: to cut or to relax? Endoscopy 2024; 56:353-354. [PMID: 38490249 DOI: 10.1055/a-2279-9899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Affiliation(s)
- Linda Zhang
- Gastroenterology and Hepatology, St George Hospital, Sydney, Australia
- Faculty of Medicine, University of New South Wales, Sydney, Australia
- Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, United States
| | - Mouen A Khashab
- Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, United States
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Dolan RD, McCarty TR, Bazarbashi AN, Thompson CC. Efficacy and Safety of Gastric Per-Oral Endoscopic Myotomy (G-POEM): A Systematic Review and Meta-Analysis. J Clin Gastroenterol 2024:00004836-990000000-00293. [PMID: 38683239 DOI: 10.1097/mcg.0000000000002010] [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: 09/12/2022] [Accepted: 03/17/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Gastric per-oral endoscopic myotomy (G-POEM) is an innovative treatment that has become increasingly utilized for patients with refractory gastroparesis. The aim of this systematic review and meta-analysis was to evaluate the safety and effectiveness of G-POEM for the treatment of gastroparesis. METHODS Individualized search strategies were developed through February 2021 in accordance with the PRISMA and MOOSE guidelines. This meta-analysis was performed by calculating pooled proportions and mean difference preprocedure and postprocedure with rates estimated using random effects models. Measured outcomes included technical success, clinical success, improvement in gastroparesis cardinal symptom index (GCSI), change in gastric emptying rate, alterations in impedance planimetry (functional lumen imaging probe [FLIP]) assessment, and adverse events. RESULTS A total of 20 studies (n=797 patients; 67.41% female) were included. The mean age was 48.92±11.61 y, with an average duration of 4.24±1.11 y since gastroparesis diagnosis. Technical success was 98.47% [(95% CI: 97.14, 99.19);I2=0.00] with a mean myotomy length of 3.78±1.16 cm. In terms of clinical success, mean preprocedure GCSI scores were 3.38±0.37 and improved significantly postprocedure [weighted mean difference -1.56 (95% CI: -1.89 to -1.24); I2=82.53; P<0.001]. Gastric retention after 4 hours demonstrated ~50% improvement (preprocedure 43.08±9.24% versus postprocedure 22.97±10.19%; P<0.001). FLIP assessment with 40 mL and 50 mL balloons demonstrated a significant increase in diameter, distensibility index, and cross-sectional area postprocedure (all P<0.05). Procedure-associated adverse events occurred among 10.92% [(95% CI 5.09 to 19.32); I2=82.85] of patients. CONCLUSION G-POEM appears safe and highly effective for the treatment of patients with refractory gastroparesis regardless of symptom predominance or etiology.
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Affiliation(s)
- Russell D Dolan
- Division of Gastroenterology, Hepatology and Endoscopy. Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Thomas R McCarty
- Houston Methodist Hospital, Lynda K. and David M. Underwood Center for Digestive Disorders, Houston, TXWeill Cornell Medical College, New York, NYTexas A&M University School of Medicine, Bryan College Station, TX
| | - Ahmad Najdat Bazarbashi
- Division of Gastroenterology, Washington University in St. Louis School of Medicine. St. Louis, MO
| | - Christopher C Thompson
- Division of Gastroenterology, Hepatology and Endoscopy. Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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Yang D, Hasan MK, Bani Fawwaz B, Farooq A, Zhang Y, Khan HM, Brar TS, Singh S, Viana A, Singh G, Kadkhodayan K, Arain MA, Cosgrove N, Jain D, Inayat I, Singh C. Quantification of interstitial cells of Cajal and fibrosis during gastric per-oral endoscopic myotomy and its association with clinical outcomes. Endosc Int Open 2024; 12:E585-E592. [PMID: 38654965 PMCID: PMC11039041 DOI: 10.1055/a-2290-0502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/04/2024] [Indexed: 04/26/2024] Open
Abstract
Background and study aims Alterations to interstitial cells of Cajal (ICC) and collagen fibrosis have been implicated in the pathogenesis of gastroparesis. We aimed to evaluate the feasibility and safety of pyloric muscle sampling during gastric peroral endoscopic myotomy (G-POEM) and the association between pyloric ICC density and degree of fibrosis with clinical outcomes. Patients and methods This was a single-center prospective study of gastroparetic patients who underwent G-POEM and intraprocedural pyloric muscle biopsies between January 2022 and April 2023. ICC count was estimated using CD117 stain and trichome for collagen fibrosis. Clinical response to G-POEM was defined as an improvement of ≥ 1 point on the Gastroparesis Cardinal Symptom Index. Results Fifty-six patients (median age 60 years, 71.4% women) underwent G-POEM (100% technical success; 71.4% clinical response). ICC depletion (< 10/high-power field) and fibrosis were encountered in 70.4% and 75% of the cases, respectively. There was no difference in mean ICC count between G-POEM responders vs. non-responders (7±3.6 vs. 7.7±3.3; P = 0.9). There was no association between ICC density or degree of fibrosis with the etiology of gastroparesis, duration of symptoms, gastric emptying rate, or pyloric impedance planimetry. Patients who did not respond to G-POEM had a significantly higher degree of moderate/severe fibrosis when compared with those who responded (81.3% vs. 25%; P = 0.0002). Conclusions Pyloric muscle biopsies during G-POEM was feasible and safe. ICC depletion and pyloric muscle fibrosis are common in gastroparetic patients. The degree of fibrosis may be related to pyloric dysfunction and clinical response to G-POEM. Additional studies are needed to confirm these results.
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Affiliation(s)
- Dennis Yang
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | | | | | - Aimen Farooq
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
- Internal Medicine, AdventHealth Central Florida, Orlando, United States
| | - Yiyang Zhang
- Statistics, AdventHealth Central Florida, Orlando, United States
| | - Hafiz M Khan
- Gastroenterology and Hepatology, Staten Island University Hospital, Staten Island, United States
| | - Tony S Brar
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | - Sanmeet Singh
- Gastroenterology, AdventHealth Central Florida, Orlando, United States
| | - Artur Viana
- Gastroenterology, AdventHealth Central Florida, Orlando, United States
| | - Gurdeep Singh
- Medicine, AdventHealth Central Florida, Orlando, United States
| | - Kambiz Kadkhodayan
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | - Mustafa A Arain
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | - Natalie Cosgrove
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | - Deepanshu Jain
- Center for Interventional Endoscopy, AdventHealth Orlando, Orlando, United States
| | - Irteza Inayat
- Gastroenterology, AdventHealth Central Florida, Orlando, United States
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Kuhar S, Seo JH, Pasricha PJ, Mittal R. In silico modelling of the effect of pyloric intervention procedures on gastric flow and emptying in a stomach with gastroparesis. J R Soc Interface 2024; 21:20230567. [PMID: 38263890 PMCID: PMC10824103 DOI: 10.1098/rsif.2023.0567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/02/2024] [Indexed: 01/25/2024] Open
Abstract
Pyloric interventions are surgical procedures employed to increase the gastric emptying rate in gastroparesis patients. In this study, we use an in silico model to investigate the consequences of pyloric intervention on gastric flow and emptying for two phenotypes of gastroparesis: antral hypomotility and decreased gastric tone. The transpyloric pressure gradient predicted by the in silico model, based on viscous fluid flow equations, is compared against in vivo measurements. Both phenotypes exhibit a similar pre-procedural emptying rate reduction, but after pyloric surgery, antral hypomotility case with preserved gastric tone shows significant improvements in emptying rates, up to 131%, accompanied by bile reflux from the duodenum into the stomach. Conversely, severely reduced gastric tone cases exhibited a post-procedural reduction in the net emptying rate due to the relatively larger bile reflux. In cases with a combination of antral hypomotility and reduced gastric tone, post-procedural improvements were observed only when both conditions were mild. Our findings highlight the pivotal role of the relative increase in pyloric orifice diameter in determining post-operative emptying rates. The study suggests a possible explanation for the selective response of patients toward these procedures and underscores the potential of in silico modelling to generate valuable insights to inform gastric surgery.
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Affiliation(s)
- Sharun Kuhar
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jung-Hee Seo
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | | | - Rajat Mittal
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
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Vackova Z, Levenfus I, Pohl D. Interventional functional diagnostics in gastrointestinal endoscopy: Combining diagnostic and therapeutic tools in the endoscopy suite with the functional lumen imaging probe. Curr Opin Pharmacol 2023; 73:102414. [PMID: 38029641 DOI: 10.1016/j.coph.2023.102414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/18/2023] [Accepted: 11/03/2023] [Indexed: 12/01/2023]
Abstract
With technical progress of gastrointestinal functional testing, there has been a demand for more comprehensive examination of esophageal physiology and pathophysiology beyond high-resolution manometry. A new interventional technology based on impedance planimetry, the functional lumen imaging probe (FLIP), enables intraluminal measurement of distensibility and compliance of hollow organs. EndoFLIP uses balloon catheters to measure diameter and distension pressure to calculate cross-sectional area and distensibility in different organs (mostly esophagus, stomach, anorectal region) and can be used in wide variety of indications (diagnostics, pre- and post-treatment evaluation) and currently serves as a helpful adjunctive tool in ambiguous clinical cases. EsoFLIP is a therapeutic variation that uses a stiffer balloon catheter allowing for dilation. The trend to simplify the clinical process from diagnosis to treatment tends to a one-session procedure combining diagnostics and therapeutic interventions. In specified conditions like e.g. achalasia or gastroparesis, a combination of EndoFLIP and EsoFLIP procedures may therefore be useful. The aim of this narrative review is to introduce the clinical use of FLIP and its potential benefit in combined diagnostic-therapeutic procedures.
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Affiliation(s)
- Zuzana Vackova
- Department of Gastrointestinal Endoscopy, Department of Medicine, Military University Hospital Prague, Czech Republic.
| | - Ian Levenfus
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Switzerland
| | - Daniel Pohl
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Switzerland
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Ichkhanian Y, Al-Haddad MA, Jacobs CC, Schlachterman A, Yang J, Canakis A, Kim R, Guerson-Gil A, D'Souza LS, Alsheik E, Ginnebaugh BD, Khashab MA, Zuchelli T, McFarlin K, Piraka C. Gastric peroral endoscopic myotomy for management of refractory gastroparesis in patients with gastric neurostimulator devices: a multicenter retrospective case control study. Gastrointest Endosc 2023; 98:559-566.e1. [PMID: 37121364 DOI: 10.1016/j.gie.2023.04.2079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/28/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND AND AIMS Gastric neurostimulation (GNS) and gastric peroral myotomy (G-POEM), therapies for refractory gastroparesis, are associated with suboptimal outcomes. We studied the role of G-POEM as a salvage therapy in patients with refractory symptoms after GNS implantation. METHODS This was a multicenter, retrospective, matched case-control study. Consecutive patients with a GNS device and who underwent G-POEM as a salvage therapy for clinical failure (cases) and patients without GNS implantation and who underwent G-POEM for refractory gastroparesis (control) between October 2018 and August 2021 were included. The primary outcome was clinical success after G-POEM. RESULTS A total of 123 patients (mean age 45.7 ± 14.7 years; 88 female subjects [72%]) underwent G-POEM therapy during the study: 41 cases and 82 controls. Clinical success was achieved in 66% in the case group and 65% in the control group (P = .311), during a median total clinical follow-up time of 11.8 (interquartile range, 2.4-6.3) months. In the case group, the mean Gastroparesis Cardinal Symptom Index score decreased from 2.8 ± 1.8 to 1.5 ± 1.9 (P = .024), and gastric retention at 4 hours improved from 45% ± 25.8% to 16.6% ± 13.1% (P = .06). The mean delta improvement in the subscales of nausea/vomiting (1.3 ± .6 vs .9 ± 1.1, P = .044) and bloating (1.6 ± 1.3 vs 1.2 ± 1.4, P = .041) were significantly higher in cases than in controls. CONCLUSIONS Among patients with refractory symptoms after GNS, G-POEM can be a reasonable salvage therapy to provide further symptomatic relief with evidence of a potential additive effect of both G-POEM and GNS.
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Affiliation(s)
| | - Mohammad A Al-Haddad
- Division of Gastroenterology and Hepatology, Indiana University, Indianapolis, Indiana, USA
| | - Chelsea C Jacobs
- Division of Gastroenterology and Hepatology, Indiana University, Indianapolis, Indiana, USA
| | - Alexander Schlachterman
- Division of Gastroenterology and Hepatology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Juliana Yang
- Division of Gastroenterology and Hepatology, Vanderbilt University, Nashville, Tennessee, USA
| | - Andrew Canakis
- Division of Gastroenterology and Hepatology, University of Maryland, Baltimore, Maryland, USA
| | - Raymond Kim
- Division of Gastroenterology and Hepatology, University of Maryland, Baltimore, Maryland, USA
| | - Arcelia Guerson-Gil
- Division of Gastroenterology and Hepatology, Stony Brook University Hospital, Stony Brook, New York, USA
| | - Lionel S D'Souza
- Division of Gastroenterology and Hepatology, Stony Brook University Hospital, Stony Brook, New York, USA
| | | | | | - Mouen A Khashab
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA (10)Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador
| | | | - Kellie McFarlin
- Department of Surgery, Henry Ford Hospital, Detroit, Michigan, USA
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Mandarino FV, Testoni SGG, Barchi A, Azzolini F, Sinagra E, Pepe G, Chiti A, Danese S. Imaging in Gastroparesis: Exploring Innovative Diagnostic Approaches, Symptoms, and Treatment. Life (Basel) 2023; 13:1743. [PMID: 37629600 PMCID: PMC10455809 DOI: 10.3390/life13081743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/08/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
Gastroparesis (GP) is a chronic disease characterized by upper gastrointestinal symptoms, primarily nausea and vomiting, and delayed gastric emptying (GE), in the absence of mechanical GI obstruction. The underlying pathophysiology of GP remains unclear, but factors contributing to the condition include vagal nerve dysfunction, impaired gastric fundic accommodation, antral hypomotility, gastric dysrhythmias, and pyloric dysfunction. Currently, gastric emptying scintigraphy (GES) is considered the gold standard for GP diagnosis. However, the overall delay in GE weakly correlates with GP symptoms and their severity. Recent research efforts have focused on developing treatments that address the presumed underlying pathophysiological mechanisms of GP, such as pyloric hypertonicity, with Gastric Peroral Endoscopic Myotomy (G-POEM) one of these procedures. New promising diagnostic tools for gastroparesis include wireless motility capsule (WMC), the 13 carbon-GE breath test, high-resolution electrogastrography, and the Endoluminal Functional Lumen Imaging Probe (EndoFLIP). Some of these tools assess alterations beyond GE, such as muscular electrical activity and pyloric tone. These modalities have the potential to characterize the pathophysiology of gastroparesis, identifying patients who may benefit from targeted therapies. The aim of this review is to provide an overview of the current knowledge on diagnostic pathways in GP, with a focus on the association between diagnosis, symptoms, and treatment.
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Affiliation(s)
- Francesco Vito Mandarino
- Department of Gastroenterology and Gastrointestinal Endoscopy, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (S.G.G.T.); (A.B.); (F.A.); (S.D.)
| | - Sabrina Gloria Giulia Testoni
- Department of Gastroenterology and Gastrointestinal Endoscopy, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (S.G.G.T.); (A.B.); (F.A.); (S.D.)
| | - Alberto Barchi
- Department of Gastroenterology and Gastrointestinal Endoscopy, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (S.G.G.T.); (A.B.); (F.A.); (S.D.)
| | - Francesco Azzolini
- Department of Gastroenterology and Gastrointestinal Endoscopy, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (S.G.G.T.); (A.B.); (F.A.); (S.D.)
| | - Emanuele Sinagra
- Gastroenterology & Endoscopy Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy;
| | - Gino Pepe
- Department of Nuclear Medicine, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (G.P.); (A.C.)
| | - Arturo Chiti
- Department of Nuclear Medicine, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (G.P.); (A.C.)
| | - Silvio Danese
- Department of Gastroenterology and Gastrointestinal Endoscopy, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy; (S.G.G.T.); (A.B.); (F.A.); (S.D.)
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Amundson JR, Kuchta K, VanDruff VN, Wu H, Campbell M, Hedberg HM, Ujiki MB. Experience with Impedance Planimetry for Surgical Foregut Disease in 1,097 Cases. J Am Coll Surg 2023; 237:35-48. [PMID: 36896984 DOI: 10.1097/xcs.0000000000000675] [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: 03/11/2023]
Abstract
BACKGROUND The geometry and compliance of gastrointestinal sphincters may be assessed by impedance planimetry using a functional lumen imaging probe (FLIP). We describe our institutional foregut surgeon experience using FLIP in 1,097 cases, highlighting instances where FLIP changed operative decision making. STUDY DESIGN A retrospective review of an IRB-approved prospective quality database was performed. This included operative and endoscopic suite foregut procedures using FLIP between February 2013 and May 2022. RESULTS During the study period, FLIP was used a total of 1,097 times in 919 unique patients by 2 foregut surgeons. Intraoperative FLIP was used during 573 antireflux procedures and 272 endoscopic myotomies. FLIP was also used during 252 endoscopic suite procedures. For those undergoing preoperative workup of GERD, starting in 2021, esophageal panometry was performed in addition to standard FLIP measurements at the lower esophageal sphincter. In 77 cases, intraoperative FLIP changed operative decision making. During antireflux procedures, changes included adding or removing crural sutures, adjusting a fundoplication tightness, choice of full vs partial wrap, and magnetic sphincter augmentation sizing. For endoscopic procedures, changes included aborting peroral endoscopic myotomy or Zenker's peroral endoscopic myotomy, performing a myotomy when preoperative diagnosis was unclear, or performing additional myotomy. CONCLUSIONS FLIP is a useful tool for assessing the upper esophageal sphincter, lower esophageal sphincter, pylorus, and secondary esophageal peristalsis that can be used in a wide variety of clinical situations within a foregut surgeon's practice. It can also function as an adjunct in intraoperative decision making.
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Affiliation(s)
- Julia R Amundson
- From the Department of Surgery, University of Chicago, Chicago, IL (Amundson, VanDruff, Wu, Campbell)
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - Kristine Kuchta
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - Vanessa N VanDruff
- From the Department of Surgery, University of Chicago, Chicago, IL (Amundson, VanDruff, Wu, Campbell)
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - Hoover Wu
- From the Department of Surgery, University of Chicago, Chicago, IL (Amundson, VanDruff, Wu, Campbell)
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - Michelle Campbell
- From the Department of Surgery, University of Chicago, Chicago, IL (Amundson, VanDruff, Wu, Campbell)
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - H Mason Hedberg
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
| | - Michael B Ujiki
- the Department of Surgery, NorthShore University Health System, Evanston, IL (Amundson, Kuchta, VanDruff, Wu, Campbell, Hedburg, Ujiki)
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Khashab MA, Wang AY, Cai Q. AGA Clinical Practice Update on Gastric Peroral Endoscopic Myotomy for Gastroparesis: Commentary. Gastroenterology 2023; 164:1329-1335.e1. [PMID: 37086247 DOI: 10.1053/j.gastro.2023.02.027] [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: 10/29/2022] [Revised: 02/11/2023] [Accepted: 02/18/2023] [Indexed: 04/23/2023]
Abstract
DESCRIPTION The purpose of this American Gastroenterological Association (AGA) Institute Clinical Practice Update (CPU) is to review the available evidence and provide expert advice regarding cognitive, procedural, and post-procedural aspects of performing gastric peroral endoscopic myotomy for the treatment of refractory gastroparesis. METHODS This CPU was commissioned and approved by the AGA Institute Clinical Practice Updates Committee (CPUC) and the AGA Governing Board to provide timely guidance on a topic of high clinical importance to the AGA membership and underwent internal peer review by the CPUC and external peer review through standard procedures of Gastroenterology. This expert commentary incorporates important as well as recently published studies in this field, and it reflects the experiences of the authors who are advanced endoscopists with expertise in treating patients by performing third-space endoscopy and gastric peroral endoscopic myotomy.
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Affiliation(s)
- Mouen A Khashab
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland
| | - Andrew Y Wang
- Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, Virginia.
| | - Qiang Cai
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences at Shreveport, Shreveport, Louisiana
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El Halabi M, Parkman HP. 2023 update on the clinical management of gastroparesis. Expert Rev Gastroenterol Hepatol 2023; 17:431-441. [PMID: 36970885 DOI: 10.1080/17474124.2023.2196404] [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] [Indexed: 03/31/2023]
Abstract
INTRODUCTION Gastroparesis is characterized by symptoms suggesting gastric retention of food and objective evidence of delayed gastric emptying in the absence of a mechanical obstruction. Nausea, vomiting, early satiety, and postprandial fullness are the classic symptoms of gastroparesis. Gastroparesis is increasingly encountered by physicians. There are several recognized etiologies of gastroparesis, including diabetic, post-surgical, medication-induced, post-viral, and idiopathic. AREAS COVERED A comprehensive literature review was conducted to identify studies discussing gastroparesis management. Dietary modifications, medication adjustments, glucose control, antiemetic agents, and prokinetic agents are all part of gastroparesis management. In this manuscript, we detail treatments evolving for gastroparesis, including nutritional, pharmaceutical, device, and recent advanced endoscopic and surgical therapies. This manuscript concludes with a speculative viewpoint on how the field will evolve in 5 years' time. EXPERT OPINION Identification of the dominant symptoms (fullness, nausea, abdominal pain, and heartburn) helps to direct management efforts of the patients. Treatments for refractory (treatment resistant) symptoms may include gastric electric stimulation and intra-pyloric interventions like botulinum toxin and endoscopic pyloromyotomy. Understanding the pathophysiology of gastroparesis, relating pathophysiologic abnormalities to specific symptoms, new efficacious pharmacotherapies, and better understanding of the clinical predictors of response of therapies, are priorities for future research in the field of gastroparesis.
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Affiliation(s)
- Maan El Halabi
- GI Motility Fellow, Section of Gastroenterology, Temple University Hospital, Philadelphia, PA, USA
| | - Henry P Parkman
- Professor of Medicine, Director of GI Motility Laboratory, Section of Gastroenterology, Temple University Hospital, Philadelphia, PA, USA
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Soliman H, Gourcerol G. Targeting the pylorus in gastroparesis: From physiology to endoscopic pyloromyotomy. Neurogastroenterol Motil 2023; 35:e14529. [PMID: 36594414 PMCID: PMC10077918 DOI: 10.1111/nmo.14529] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/28/2022] [Accepted: 12/19/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND The pylorus plays a key role in the control of gastric content outflow. Impairment of pyloric physiology has been observed in gastroparesis, particularly when associated with diabetes mellitus or opioid intake or after antireflux surgery. New tools have been developed to identify pyloric dysfunction in routine care, including functional luminal impedance planimetry (FLIP). As such, a new therapeutic strategy targeting the pylorus, namely endoscopic pyloromyotomy (G-POEM), has received increasing attention and emerged as a promising treatment for gastroparesis. PURPOSE The present review details the involvement of the pyloric pathophysiology in gastroparesis, as well as clinical results of G-POEM according to the current literature.
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Affiliation(s)
- Heithem Soliman
- Physiology Department, INSERM UMR 1073, CIC-CRB 1404, Centre Hospitalo-Universitaire de Rouen, Rouen, France.,Département d'Hépato-Gastro-Entérologie, Hôpital Louis Mourier, AP-HP Nord, Université de Paris Cité, Colombes, France
| | - Guillaume Gourcerol
- Physiology Department, INSERM UMR 1073, CIC-CRB 1404, Centre Hospitalo-Universitaire de Rouen, Rouen, France
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McCurdy GA, Gooden T, Weis F, Mubashir M, Rashid S, Raza SM, Morris J, Cai Q. Gastric peroral endoscopic pyloromyotomy (G-POEM) in patients with refractory gastroparesis: a review. Therap Adv Gastroenterol 2023; 16:17562848231151289. [PMID: 37007216 PMCID: PMC10052481 DOI: 10.1177/17562848231151289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 12/27/2022] [Indexed: 04/04/2023] Open
Abstract
Gastric peroral endoscopic pyloromyotomy (G-POEM or POP) is an endoscopic therapeutic modality for treatment of refractory gastroparesis. Since the first case reported in 2013, there are more than 200 papers published on G-POEM. In this narrative review, we summarize the short-term and long-term outcomes and review other important studies. The technical success rate is 100% and the short-term (within 1 year) success rate is about 50-80%. The procedure time is between 50 and 70 min while the average length of hospital stay was 2-3 days. The adverse event rate was around 10%. Few patients need further intervention. Three studies showed that at the 4-year follow-up, the response to G-POEM was durable, but there was a yearly recurrence rate of 13% or more. Redo G-POEM is feasible and can be of benefit for some patients. Most of the studies showed that long duration of illness is associated with poor outcomes. However, reliable predictors for successful outcomes are still unknown. Current literature indicates G-POEM is superior to gastric electric stimulator and surgical pyloroplasty. Endoflip has been used at G-POEM to predict the outcome, but the result is very preliminary. A recent sham study confirms the short-term efficacy of G-POEM. G-POEM is safe and about 50% of patients can be discharged to home on the same day. G-POEM allows for direct biopsy of the gastric muscle, which is the location of the pacemaker cells, the interstitial cells of Cajal; therefore, G-POEM may provide a new path for further research on the pathogenesis of gastroparesis.
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Affiliation(s)
- Grace Ann McCurdy
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Tonia Gooden
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Francesca Weis
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Maryam Mubashir
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Shazia Rashid
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Syed Musa Raza
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - James Morris
- Division of Gastroenterology and Hepatology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
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Nabi Z, Reddy DN. Submucosal endoscopy: the present and future. Clin Endosc 2023; 56:23-37. [PMID: 36617645 PMCID: PMC9902679 DOI: 10.5946/ce.2022.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/22/2022] [Indexed: 01/10/2023] Open
Abstract
Submucosal endoscopy or third-space endoscopy utilizes the potential space between the mucosal and muscularis layers of the gastrointestinal tract to execute therapeutic interventions for various diseases. Over the last decade, endoscopic access to the submucosal space has revolutionized the field of therapeutic endoscopy. Submucosal endoscopy was originally used to perform endoscopic myotomy in patients with achalasia cardia, and its use has grown exponentially since. Currently, submucosal endoscopy is widely used to resect subepithelial tumors and to manage refractory gastroparesis and Zenker's diverticulum. While the utility of submucosal endoscopy has stood the test of time in esophageal motility disorders and subepithelial tumors, its durability remains to be established in conditions such as Zenker's diverticulum and refractory gastroparesis. Other emerging indications for submucosal endoscopy include esophageal epiphrenic diverticulum, Hirschsprung's disease, and esophageal strictures not amenable to conventional endoscopic treatment. The potential of submucosal endoscopy to provide easy and safe access to the mediastinum and peritoneal spaces may open doors to novel indications and rejuvenate the interest of endoscopists in natural orifice transluminal endoscopic surgery in the future. This review focuses on the current spectrum, recent updates, and future direction of submucosal endoscopy in the gastrointestinal tract.
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Affiliation(s)
- Zaheer Nabi
- Asian Institute of Gastroenterology, Hyderabad, India
| | - Duvvur Nageshwar Reddy
- Asian Institute of Gastroenterology, Hyderabad, India,Correspondence: Duvvur Nageshwar Reddy Asian Institute of Gastroenterology, 6-3-661 Somajiguda, Hyderabad 500 082, India E-mail:
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Ramos GP, Law RJ, Camilleri M. Diagnosis and Management of Gastroparesis. Am J Gastroenterol 2022; 117:1894-1898. [PMID: 36114770 PMCID: PMC9722580 DOI: 10.14309/ajg.0000000000002003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 01/30/2023]
Affiliation(s)
- Gabriela Piovezani Ramos
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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15
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Assessment of pyloric sphincter physiology after Ivor-Lewis esophagectomy using an endoluminal functional lumen imaging probe. Surg Endosc 2022:10.1007/s00464-022-09714-9. [DOI: 10.1007/s00464-022-09714-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 10/11/2022] [Indexed: 12/04/2022]
Abstract
Abstract
Objective of the study
The most common functional complication after Ivor-Lewis esophagectomy is the delayed emptying of the gastric conduit (DGCE) for which several diagnostic tools are available, e.g. chest X-ray, upper esophagogastroduodenoscopy (EGD) and water-soluble contrast radiogram. However, none of these diagnostic tools evaluate the pylorus itself. Our study demonstrates the successful measurement of pyloric distensibility in patients with DGCE after esophagectomy and in those without it.
Methods and procedures
Between May 2021 and October 2021, we performed a retrospective single-centre study of all patients who had an oncological Ivor-Lewis esophagectomy and underwent our post-surgery follow-up programme with surveillance endoscopies and computed tomography scans. EndoFlip™ was used to perform measurements of the pylorus under endoscopic control, and distensibility was measured at 40 ml, 45 ml and 50 ml balloon filling.
Results
We included 70 patients, and EndoFlip™ measurement was feasible in all patients. Successful application of EndoFlip™ was achieved in all interventions (n = 70, 100%). 51 patients showed a normal postoperative course, whereas 19 patients suffered from DGCE. Distensibility proved to be smaller in patients with symptoms of DGCE compared to asymptomatic patients. For 40 ml, 45 ml and 50 ml, the mean distensibility was 6.4 vs 10.1, 5.7 vs 7.9 and 4.5 vs 6.3 mm2/mmHg. The differences were significant for all three balloon fillings. No severe EndoFlip™ treatment-related adverse events occurred.
Conclusion
Measurement with EndoFlip™ is a safe and technically feasible endoscopic option for measuring the distensibility of the pylorus. Our study shows that the distensibility in asymptomatic patients after esophagectomy is significantly higher than that in patients suffering from DGCE. However, more studies need to be conducted to demonstrate the general use of EndoFlip™ measurement of the pylorus after esophagectomy.
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16
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Camilleri M. Choosing G-POEM or other treatments for gastroparesis. Gut 2022; 71:2145-2146. [PMID: 35606088 DOI: 10.1136/gutjnl-2022-327545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/12/2022] [Indexed: 12/08/2022]
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Martinek J, Hustak R, Mares J, Vackova Z, Spicak J, Kieslichova E, Buncova M, Pohl D, Amin S, Tack J. Endoscopic pyloromyotomy for the treatment of severe and refractory gastroparesis: a pilot, randomised, sham-controlled trial. Gut 2022; 71:2170-2178. [PMID: 35470243 PMCID: PMC9554080 DOI: 10.1136/gutjnl-2022-326904] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/05/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Endoscopic pyloromyotomy (G-POEM) is a minimally invasive treatment option with promising uncontrolled outcome results in patients with gastroparesis. DESIGN In this prospective randomised trial, we compared G-POEM with a sham procedure in patients with severe gastroparesis. The primary outcome was the proportion of patients with treatment success (defined as a decrease in the Gastroparesis Cardinal Symptom Index (GCSI) by at least 50%) at 6 months. Patients randomised to the sham group with persistent symptoms were offered cross-over G-POEM. RESULTS The enrolment was stopped after the interim analysis by the Data and Safety Monitoring Board prior to reaching the planned sample of 86 patients. A total of 41 patients (17 diabetic, 13 postsurgical, 11 idiopathic; 46% male) were randomised (21 G-POEM, 20-sham). Treatment success rate was 71% (95% CI 50 to 86) after G-POEM versus 22% (8-47) after sham (p=0.005). Treatment success in patients with diabetic, postsurgical and idiopathic gastroparesis was 89% (95% CI 56 to 98), 50% (18-82) and 67% (30-90) after G-POEM; the corresponding rates in the sham group were 17% (3-57), 29% (7-67) and 20% (3-67).Median gastric retention at 4 hours decreased from 22% (95% CI 17 to 31) to 12% (5-22) after G-POEM and did not change after sham: 26% (18-39) versus 24% (11-35). Twelve patients crossed over to G-POEM with 9 of them (75%) achieving treatment success. CONCLUSION In severe gastroparesis, G-POEM is superior to a sham procedure for improving both symptoms and gastric emptying 6 months after the procedure. These results are not entirely conclusive in patients with idiopathic and postsurgical aetiologies. TRIAL REGISTRATION NUMBER NCT03356067; ClinicalTrials.gov.
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Affiliation(s)
- Jan Martinek
- Department of Hepatogastroenterology, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Rastislav Hustak
- Department of Internal Medicine, University Hospital Trnava, Trnava, Slovakia
- Institute of Physiology, Charles University in Prague, Prague, Czech Republic
| | - Jan Mares
- Department of IT and Biostatistics, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Zuzana Vackova
- Department of Hepatogastroenterology, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Julius Spicak
- Department of Hepatogastroenterology, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Eva Kieslichova
- Department of Anesthesiology and Intensive Care, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Marie Buncova
- Department of Nuclear Medicine, Institute of Clinical and Experimental Medicine, Praha, Czech Republic
| | - Daniel Pohl
- Division of Gastroenterology & Hepatology, University Hospital Zürich, Zürich, Switzerland
| | - Sunil Amin
- Division of Gastroenterology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jan Tack
- Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
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18
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Zheng T, Vosoughi K, Busciglio I, Tebay L, Burton D, Camilleri M. Fasting pyloric diameter and distensibility by functional endoluminal imaging probe in unsedated healthy volunteers. Neurogastroenterol Motil 2022; 34:e14386. [PMID: 35468258 PMCID: PMC9529766 DOI: 10.1111/nmo.14386] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Recent studies with functional endoluminal imaging probe (EndoFLIP® ) measure physiologic characteristics of the pylorus. EndoFLIP® has the potential to select optimal candidates for gastric peroral endoscopic myotomy (G-POEM). Normative values of the pylorus using EndoFLIP® have not been established. METHODS Twenty-four healthy volunteers (20-56 years old; 15 females) underwent unsedated, transoral EndoFLIP® measurements of the pylorus after 8 h of fasting. Measurements of diameter (DM), balloon pressure, and distensibility index (DI) of the pylorus were obtained twice over 5 min at 40, 50, and 60 ml balloon distensions. KEY RESULTS Pyloric DM at 40, 50, and 60 ml balloon distensions were 13.0 ± 2.5, 14.3 ± 1.8, and 17.2 ± 2.0 mm, respectively. DM with 60 ml distension was notably higher than with 40 and 50 ml distensions. Pyloric DI at 40, 50, and 60 ml distensions were 10.9 ± 4.8, 11.3 ± 5.8, and 11.1 ± 4.3 mm2 /mm Hg, respectively (p = 0.86). Linear regression and Bland-Altman plots showed similar distribution of the DM and DI during the second minute compared with the full 5-min measurements at 50 ml distension, as well as between two sequential measurements using 50 ml distension. With 50 ml balloon distension, intraindividual coefficients of variation (COVintra ) for DM and DI were 13.8% and 29.6%, respectively, and interindividual COV (COVinter ) were 12.6% and 51.3%, respectively. Similar reproducibility was obtained with 40 ml balloon distension. CONCLUSIONS AND INFERENCES Unsedated EndoFLIP® can be used to characterize human fasting pyloric diameter and distensibility, with best performance observed with 40 ml and 50 ml distensions and data collection during the second minute. Normative values reported serve as reference values for future studies.
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Affiliation(s)
- Ting Zheng
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kia Vosoughi
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Irene Busciglio
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lisa Tebay
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Duane Burton
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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19
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Zheng T, BouSaba J, Sannaa W, Eckert DJ, Burton DD, Camilleri M. Comprehensive characterization of antral and pyloric contractions by high resolution manometry: applied physiology in suspected gastroparesis. Am J Physiol Gastrointest Liver Physiol 2022; 323:G255-G264. [PMID: 35819155 PMCID: PMC9448275 DOI: 10.1152/ajpgi.00119.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 02/03/2023]
Abstract
Delayed gastric emptying may result from diverse pathophysiological mechanisms including antral hypomotility and pylorospasm. With increasing use of gastric peroral endoscopic myotomy and preliminary evidence of efficacy, our aim was to assess the motor functions of the distal antrum and pylorus in patients with symptoms of gastroparesis using high-resolution antropyloroduodenal manometry (HR-ADM). Sixteen patients with symptoms suggestive of gastroparesis underwent HR-ADM with 13 sensors, 1 cm apart, placed across the antropyloroduodenal (APD) junction and 2 sensors, 10 cm apart, in descending and distal duodenum. The 1-h postprandial motility was quantitated as contraction frequency/minute, average amplitude, and motility index (MI). Six healthy volunteers served as controls. In the patient group, the HR-ADM identified postprandial antral hypomotility, isolated pyloric pressure waves, and tonic elevation of baseline pressure in pylorus. Patients had significantly reduced frequency of the full-hour postprandial antral contractions/minute compared with healthy volunteers [1.52 (0.97, 1.67) vs. 2.04 (1.70, 2.67), P = 0.005], as well as reduced MI [9.65 (8.29, 10.31) vs. 11.04 (10.65, 11.63), P = 0.002]. The average contraction amplitude was numerically, but not significantly reduced [51.9 (21.9, 74.9) vs. 73.0 (59.8, 82.7), P = 0.14]. Bland-Altman plots showed similar distribution of antral contraction frequency and MI during the first and second postprandial 30-min periods for both patients and controls. High-resolution ADM can characterize a variety of postprandial antral contractile and pyloric motility dysfunctions. This technique shows promise to provide guidance for the selection of optimal treatment of patients with gastroparesis.NEW & NOTEWORTHY Current selection of different treatments for patients with gastroparesis is empiric or based on trial and error, though pyloric distensibility and diameter may predict response to pyloric interventions. High-resolution antropyloroduodenal manometry (HR-ADM) can characterize a variety of postprandial antral contractile and pyloric motility dysfunctions in patients with suspected gastroparesis. HR-ADM shows promise to provide guidance for selection and individualization of treatments such as prokinetic agents or pyloric interventions for patients with gastroparesis based on documented pathophysiology.
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Affiliation(s)
- Ting Zheng
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Joelle BouSaba
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Wassel Sannaa
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Deborah J Eckert
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Duane D Burton
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
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Abstract
Gastroparesis is characterized by symptoms suggesting retention of food in the stomach with objective evidence of delayed gastric emptying in the absence of mechanical obstruction in the gastric outflow. This condition is increasingly encountered in clinical practice. These guidelines summarize perspectives on the risk factors, diagnosis, and management of gastroparesis in adults (including dietary, pharmacological, device, and interventions directed at the pylorus), and they represent the official practice recommendations of the American College of Gastroenterology. The scientific evidence for these guidelines was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation process. When the evidence was not appropriate for Grading of Recommendations, Assessment, Development, and Evaluation, we used expert consensus to develop key concept statements. These guidelines should be considered as preferred but are not the only approaches to these conditions.
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Mandarino FV, Testoni SGG, Barchi A, Pepe G, Esposito D, Fanti L, Viale E, Biamonte P, Azzolini F, Danese S. Gastric emptying study before gastric peroral endoscopic myotomy (G-POEM): can intragastric meal distribution be a predictor of success? Gut 2022; 72:1019-1020. [PMID: 35697421 DOI: 10.1136/gutjnl-2022-327701] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/03/2022] [Indexed: 12/08/2022]
Affiliation(s)
- Francesco Vito Mandarino
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | | | - Alberto Barchi
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Gino Pepe
- Division of Nuclear Medicine, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Dario Esposito
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Lorella Fanti
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Edi Viale
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Paolo Biamonte
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Francesco Azzolini
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
| | - Silvio Danese
- Gastroenterology and Endoscopy Unit, San Raffaele Hospital and Vita-Salute San Raffaele University, Milano, Italy
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22
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Zheng T, Camilleri M. Selecting optimal patients with gastroparesis for G-POEM procedure. Gut 2022; 71:659-660. [PMID: 33785556 PMCID: PMC9310442 DOI: 10.1136/gutjnl-2021-324631] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/21/2021] [Indexed: 12/24/2022]
Affiliation(s)
- Ting Zheng
- Gastroenterology, Mayo Clinic Rochester, Rochester, Minnesota, USA
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Verga MC, Mazza S, Azzolini F, Cereatti F, Conti CB, Drago A, Soro S, Elvo B, Grassia R. Gastric per-oral endoscopic myotomy: Indications, technique, results and comparison with surgical approach. World J Gastrointest Surg 2022; 14:12-23. [PMID: 35126859 PMCID: PMC8790331 DOI: 10.4240/wjgs.v14.i1.12] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/20/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Gastroparesis is a chronic disease of the stomach that causes a delayed gastric emptying, without the presence of a stenosis. For 30 years the authors identified pylorospasm as one of the most important pathophysiological mechanisms determining gastroparesis. Studies with EndoFLIP, a device that assesses pyloric distensibility, increased the knowledge about pylorospasm. Based on this data, several pyloric-targeted therapies were developed to treat refractory gastroparesis: Surgical pyloroplasty and endoscopic approach, such as pyloric injection of botulinum and pyloric stenting. Notwithstanding, the success of most of these techniques is still not complete. In 2013, the first human gastric per-oral endoscopic myotomy (GPOEM) was performed. It was inspired by the POEM technique, with a similar dissection method, that allows pyloromyotomy. Therapeutical results of GPOEM are similar to surgical approach in term of clinical success, adverse events and post-surgical pain. In the last 8 years GPOEM has gained the attention of the scientific community, as a minimally invasive technique with high rate of clinical success, quickly prevailing as a promising therapy for gastroparesis. Not surprisingly, in referral centers, its technical success rate is 100%. One of the main goals of recent studies is to identify those patients that will respond better to the therapies targeted on pylorus and to choose the better approach for each patient.
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Affiliation(s)
- Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Francesco Azzolini
- Gastroenterology and Digestive Endoscopy Unit, Ospedale San Raffaele IRCCS, Milano 20132, Italy
| | - Fabrizio Cereatti
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | | | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Biagio Elvo
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
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Vosoughi K, Ichkhanian Y, Benias P, Miller L, Aadam AA, Triggs JR, Law R, Hasler W, Bowers N, Chaves D, Ponte-Neto AM, Draganov P, Yang D, El Halabi M, Sanaei O, Brewer Gutierrez OI, Bulat RS, Pandolfino J, Khashab M. Gastric per-oral endoscopic myotomy (G-POEM) for refractory gastroparesis: results from an international prospective trial. Gut 2022; 71:25-33. [PMID: 33741641 DOI: 10.1136/gutjnl-2020-322756] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Although gastric per-oral endoscopic myotomy (G-POEM) is considered a promising technique for the management of refractory gastroparesis, high-quality evidence is limited. We prospectively investigated the efficacy and safety of G-POEM in unselected patients with refractory gastroparesis. DESIGN In five tertiary centres, patients with symptomatic gastroparesis refractory to standard medical therapy and confirmed by impaired gastric emptying were included. The primary endpoint was clinical success, defined as at least one score decrease in Gastroparesis Cardinal Symptom Index (GCSI) with ≥25% decrease in two subscales, at 12 months. GCSI Score and subscales, adverse events (AEs) and 36-Item Short Form questionnaire of quality of life were evaluated at baseline and 1, 3, 6 and 12 months after G-POEM. Gastric emptying study was performed before and 3 months after the procedure. RESULTS Of 80 enrolled patients, 75 patients (94%) completed 12-month follow-up. Clinical success at 12 months was 56% (95% CI, 44.8 to 66.7). GCSI Score (including subscales) improved moderately after G-POEM (p<0.05). In a regression model, a baseline GCSI Score >2.6 (OR=3.23, p=0.04) and baseline gastric retention >20% at 4 hours (OR=3.65, p=0.03) were independent predictors of clinical success at 12 months, as was early response to G-POEM at 1 month after therapy (OR 8.75, p<0.001). Mild procedure-related AEs occurred in 5 (6%) patients. CONCLUSION G-POEM is a safe procedure, but showed only modest overall effectiveness in the treatment of refractory gastroparesis. Further studies are required to identify the best candidates for G-POEM; unselective use of this procedure should be discouraged. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry NCT02732821.
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Affiliation(s)
- Kia Vosoughi
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - Yervant Ichkhanian
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA.,Department of Medicine, Henry Ford Health System, Detroit, Michigan, USA
| | - Petros Benias
- Division of Gastroenterology and Hepatology, Northwell Health, New Hyde Park, New York, USA
| | - Larry Miller
- Division of Gastroenterology and Hepatology, Northwell Health, New Hyde Park, New York, USA
| | - A Aziz Aadam
- Division of Gastroenterology and Hepatology, Northwestern Medicine, Chicago, Illinois, USA
| | - Joseph R Triggs
- Division of Gastroenterology and Hepatology, Northwestern Medicine, Chicago, Illinois, USA
| | - Ryan Law
- Division of Gastroenterology and Hepatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - William Hasler
- Division of Gastroenterology and Hepatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Nicole Bowers
- Division of Gastroenterology and Hepatology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Dalton Chaves
- Division of Gastroenterology and Hepatology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Alberto M Ponte-Neto
- Division of Gastroenterology and Hepatology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Peter Draganov
- Division of Gastroenterology, Hepatology and Nutrition, University of Florida Health, Gainesville, Florida, USA
| | - Dennis Yang
- Division of Gastroenterology, Hepatology and Nutrition, University of Florida Health, Gainesville, Florida, USA
| | - Maan El Halabi
- Department of Medicine, Mount Sinai Saint Luke's Hospital, New York, New York, USA
| | - Omid Sanaei
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA.,Medicine, MedStar Union Memorial Hospital, Baltimore, Maryland, USA
| | | | - Robert Stephen Bulat
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA
| | - John Pandolfino
- Division of Gastroenterology and Hepatology, Northwestern Medicine, Chicago, Illinois, USA
| | - Mouen Khashab
- Division of Gastroenterology and Hepatology, Johns Hopkins Medicine, Baltimore, Maryland, USA
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Kamal F, Khan MA, Lee-Smith W, Sharma S, Acharya A, Jowhar D, Farooq U, Aziz M, Kouanda A, Dai SC, Howden CW, Munroe CA. Systematic review with meta-analysis: one-year outcomes of gastric peroral endoscopic myotomy for refractory gastroparesis. Aliment Pharmacol Ther 2022; 55:168-177. [PMID: 34854102 DOI: 10.1111/apt.16725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/05/2021] [Accepted: 11/22/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Several studies have examined the efficacy of gastric peroral endoscopic myotomy (G-POEM) for gastroparesis. AIM To evaluate the mid-term efficacy of G-POEM by meta-analysis of studies with a minimum 1 year of follow-up. METHODS We reviewed several databases from inception to 10 June 2021 to identify studies that evaluated the efficacy of G-POEM in refractory gastroparesis, and had at least 1 year of follow-up. Our outcomes of interest were clinical success at 1 year, adverse events, difference in mean pre- and 1 year post-procedure Gastroparesis Cardinal Symptom Index (GCSI) score, and difference in mean pre- and post-procedure EndoFLIP measurements. We analysed data using a random-effects model and assessed heterogeneity by I2 statistic. RESULTS We included 10 studies comprising 482 patients. Pooled rates (95% CI) of clinical success at 1 year and adverse events were 61% (49%, 71%) and 8% (6%, 11%), respectively. Mean GCSI at 1 year post-procedure was significantly lower than pre-procedure; mean difference (MD) (95% CI) -1.4 (-1.9, -0.9). Mean post-procedure distensibility index was significantly higher than pre-procedure in the clinical success group at 40 and 50 mL volume distension; standardised mean difference (95% CI) 0.82 (0.07, 1.64) and 0.91 (0.32, 1.49), respectively. In the clinical failure group, there was no significant difference between mean pre- and post-procedure EndoFLIP measurements. CONCLUSIONS G-POEM is associated with modest clinical success at 1 year. Additional studies with longer follow-up are required to evaluate its longer-term efficacy.
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Affiliation(s)
- Faisal Kamal
- Division of Gastroenterology, University of California-San Francisco, San Francisco, California, USA
| | - Muhammad Ali Khan
- Department of Gastroenterology, Hepatology and Nutrition, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Wade Lee-Smith
- Mulford Health Sciences Library, University of Toledo, Toledo, Ohio, USA
| | - Sachit Sharma
- Department of Medicine, University of Toledo, Toledo, Ohio, USA
- Division of Gastroenterology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Ashu Acharya
- Department of Medicine, University of Toledo, Toledo, Ohio, USA
| | - Dawit Jowhar
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Umer Farooq
- Department of Medicine, Loyola Medicine/MacNeal Hospital, Berwyn, Illinois, USA
| | - Muhammad Aziz
- Division of Gastroenterology, University of Toledo, Toledo, Ohio, USA
| | - Abdul Kouanda
- Division of Gastroenterology, University of California-San Francisco, San Francisco, California, USA
| | - Sun-Chuan Dai
- Division of Gastroenterology, University of California-San Francisco, San Francisco, California, USA
| | - Colin W Howden
- Division of Gastroenterology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Craig A Munroe
- Division of Gastroenterology, University of California-San Francisco, San Francisco, California, USA
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Abstract
Gastroparesis is characterized by symptoms suggestive of, and objective evidence of, delayed gastric emptying in the absence of mechanical obstruction. This review addresses the normal emptying of solids and liquids from the stomach and details the myogenic and neuromuscular control mechanisms, including the specialized function of the pyloric sphincter, that result in normal emptying, based predominantly on animal research. A clear understanding of fundamental mechanisms is necessary to comprehend derangements leading to gastroparesis, and additional research on human gastric muscles is needed. The section on pathophysiology of gastroparesis considers neuromuscular diseases that affect nonsphincteric gastric muscle, disorders of the extrinsic neural control, and pyloric dysfunction that lead to gastroparesis. The potential cellular basis for gastroparesis is attributed to the effects of oxidative stress and inflammation, with increased pro-inflammatory and decreased resident macrophages, as observed in full-thickness biopsies from patients with gastroparesis. Predominant diagnostic tests involving measurements of gastric emptying, the use of a functional luminal imaging probe, and high-resolution antral duodenal manometry in characterizing the abnormal motor functions at the gastroduodenal junction are discussed. Management is based on supporting nutrition; dietary interventions, including the physical reduction in particle size of solid foods; pharmacological agents, including prokinetics and anti-emetics; and interventions such as gastric electrical stimulation and pyloromyotomy. These are discussed briefly, and comment is added on the potential for individualized treatments in the future, based on optimal gastric emptying measurement and objective documentation of the underlying pathophysiology causing the gastroparesis.
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Affiliation(s)
- Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
| | - Kenton M. Sanders
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV
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27
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Pannala R, Krishnan K, Watson RR, Vela MF, Abu Dayyeh BK, Bhatt A, Bhutani MS, Bucobo JC, Chandrasekhara V, Copland AP, Jirapinyo P, Kumta NA, Law RJ, Maple JT, Melson J, Parsi MA, Rahimi EF, Saumoy M, Sethi A, Trikudanathan G, Trindade AJ, Yang J, Lichtenstein DR. Devices for esophageal function testing. VIDEOGIE : AN OFFICIAL VIDEO JOURNAL OF THE AMERICAN SOCIETY FOR GASTROINTESTINAL ENDOSCOPY 2022; 7:1-20. [PMID: 34696917 PMCID: PMC8755458 DOI: 10.1016/j.vgie.2021.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS Esophageal function testing is an integral component of the evaluation of refractory GERD and esophageal motility disorders. This review summarizes the current technologies available for esophageal function testing, including the functional luminal imaging probe (FLIP), high-resolution esophageal manometry (HRM), and multichannel intraluminal impedance (MII) and pH monitoring. METHODS We performed a MEDLINE, PubMed, and MAUDE database literature search to identify pertinent clinical studies through March 2021 using the following key words: esophageal manometry, HRM, esophageal impedance, FLIP, MII, and esophageal pH testing. Technical data were gathered from traditional and web-based publications, proprietary publications, and informal communications with pertinent vendors. The report was drafted, reviewed, and edited by the American Society for Gastrointestinal Endoscopy Technology Committee and approved by the Governing Board of the American Society for Gastrointestinal Endoscopy. RESULTS FLIP is a high-resolution impedance planimetry system used for pressure and dimension measurement in the esophagus, pylorus, and anal sphincter. FLIP provides complementary information to HRM for esophageal motility disorders, especially achalasia. The Chicago classification, based on HRM data, is a widely adopted algorithmic scheme used to diagnose esophageal motility disorders. MII detects intraluminal bolus movement and, combined with pH measurement or manometry, provides information on acid and non-acid gastroesophageal reflux and bolus transit in patients with refractory GERD and for preoperative evaluation for anti-reflux procedures. CONCLUSIONS Esophageal function testing techniques (FLIP, HRM, and MII-pH) have diagnostic and prognostic value in the evaluation of esophageal motility disorders and refractory GERD. Newer technologies and classification systems have enabled an increased understanding of these diseases.
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Key Words
- AET, acid exposure time
- ASGE, American Society for Gastrointestinal Endoscopy
- BMI, body mass index
- CC, Chicago classification
- CD, contractile deceleration
- CSA, cross-sectional area
- DI, distensibility index
- DP, distensibility plateau
- DRI, dysphagia risk index
- EGJ, esophagogastric junction
- EGJOO, esophagogastric junction outflow obstruction
- EM, esophageal manometry
- EPT, esophageal pressure topography plots
- EoE, eosinophilic esophagitis
- FLIP, functional luminal imaging probe
- HRM, high-resolution esophageal manometry
- IEM, ineffective esophageal motility
- IRP, integrated relaxation pressure
- LES, lower esophageal sphincter
- LHM, laparoscopic Heller myotomy
- MII, multichannel intraluminal impedance
- MRS, multiple rapid swallows
- MSA, magnetic sphincter augmentation
- NOD, nonobstructive dysphagia
- POEM, peroral endoscopic myotomy
- PPI, proton pump inhibitors
- SAP, symptom association probability
- SI, Symptom index
- UES, upper esophageal sphincter
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Affiliation(s)
- Rahul Pannala
- Department of Gastroenterology and Hepatology, Mayo Clinic, Scottsdale, Arizona
| | - Kumar Krishnan
- Division of Gastroenterology, Department of Internal Medicine, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Rabindra R Watson
- Department of Gastroenterology, Interventional Endoscopy Services, California Pacific Medical Center, San Francisco, California
| | - Marcelo F Vela
- Department of Gastroenterology and Hepatology, Mayo Clinic, Scottsdale, Arizona
| | - Barham K Abu Dayyeh
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Amit Bhatt
- Department of Gastroenterology, Hepatology & Nutrition, Cleveland Clinic, Cleveland, Ohio
| | - Manoop S Bhutani
- Department of Gastroenterology Hepatology and Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Juan Carlos Bucobo
- Division of Gastroenterology and Hepatology, Stony Brook Medicine, Stony Brook, New York
| | - Vinay Chandrasekhara
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Andrew P Copland
- Division of Gastroenterology and Hepatology, University of Virginia Health Systems, Charlottesville, Virginia
| | - Pichamol Jirapinyo
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts
| | - Nikhil A Kumta
- Division of Gastroenterology, Mount Sinai Hospital, New York, New York
| | - Ryan J Law
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - John T Maple
- Division of Digestive Diseases and Nutrition, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Joshua Melson
- Division of Digestive Diseases, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
| | - Mansour A Parsi
- Division of Gastroenterology and Hepatology, University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Erik F Rahimi
- Department of Gastroenterology, Baylor Scott & White Health, Lakeway, Texas
| | - Monica Saumoy
- Department of Gastroenterology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Amrita Sethi
- Department of Digestive and Liver Diseases, New York-Presbyterian Medical Center/Columbia University Medical Center, New York, New York
| | - Guru Trikudanathan
- Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolis, Minnesota
| | - Arvind J Trindade
- Department of Gastroenterology, Zucker School of Medicine at Hofstra/Northwell, Long Island Jewish Medical Center, New Hyde Park, New York
| | - Julie Yang
- Division of Gastroenterology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - David R Lichtenstein
- Division of Gastroenterology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
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Ang TL, Bapaye A. Gastric per-oral endoscopic myotomy: Surely less invasive, but does it guarantee efficacy? J Gastroenterol Hepatol 2021; 36:2997-2998. [PMID: 34750865 DOI: 10.1111/jgh.15712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Tiing Leong Ang
- Department of Gastroenterology and Hepatology, Changi General Hospital, Duke-NUS Medical School, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Amol Bapaye
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Erandwane, Pune, India
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Abstract
PURPOSE OF REVIEW Third space endoscopy (TSE) or submucosal endoscopy provides with the opportunity for minimally invasive management of various gastrointestinal disorders. TSE is a relatively new field and the knowledge on its utility continues to advance. The purpose of this review is to provide with updated evidence on the efficacy and utility of TSE in gastrointestinal motility disorders including achalasia and refractory gastroparesis. RECENT FINDINGS Peroral endoscopic myotomy (POEM) is a safe procedure with emerging evidence on its durability as well. Major technical variations do not appear to impact the outcomes of POEM. Recent randomized trials suggest superiority of POEM over pneumatic dilatation and noninferiority over Heller's myotomy in idiopathic achalasia. With regard to gastric POEM (G-POEM), recent evidence confirms its efficacy in refractory gastroparesis. Although effective, the long-term outcomes of G-POEM are not well known. In addition, the criteria for patient selection remain elusive. SUMMARY TSE has emerged as a new frontier in the endoscopic management of gastrointestinal motility disorders. While short-term outcomes are encouraging, the durability of TSE remains to be seen in achalasia as well as refractory gastroparesis. Insights regarding patient selection and predictors of outcomes may help optimizing the results of gastric POEM in refractory gastroparesis.
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30
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Murray FR, Schindler V, Hente JM, Fischbach LM, Schnurre L, Deibel A, Hildenbrand FF, Tatu AM, Pohl D. Pyloric dilation with the esophageal functional lumen imaging probe in gastroparesis improves gastric emptying, pyloric distensibility, and symptoms. Gastrointest Endosc 2021; 94:486-494. [PMID: 33771556 DOI: 10.1016/j.gie.2021.03.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/14/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS The role of decreased pyloric distensibility in gastroparesis as measured by the endolumenal functional luminal imaging probe (EndoFLIP) has been receiving increasing attention. In this study, we present clinical outcomes to pyloric dilation with the esophageal FLIP (EsoFLIP) in regard to gastric emptying, symptom evolution, and FLIP metrics. METHODS Patients evaluated for gastroparesis (gastric emptying studies of t1/2 ≥180 minutes during 13C-octanoic acid breath test and/or gastric remnants during gastroscopy after a sufficient fasting period) were scheduled for EsoFLIP controlled pyloric dilation. Pre- and postprocedural gastric emptying studies, questionnaires (Patient Assessment of Upper GI Symptoms Severity Index [PAGI-SYM; including the Gastroparesis Cardinal Symptom Index] and Patient Assessment of Quality of Life Index [PAGI-QOL]), and FLIP metrics were documented. Dilation was conducted according to a self-developed algorithm. RESULTS Forty-six patients were analyzed (72% women; median age, 39 years [range, 18-88]). Etiologies of gastroparesis were diabetic in 10 patients (22%), idiopathic in 33 (72%), and postoperative in 3 (6%). Postprocedural gastric emptying time decreased from a median of 211 minutes to 179 minutes (P = .001). In accordance, pyloric distensibility, PAGI-SYM, PAGI-QOL, and Gastroparesis Cardinal Symptom Index values improved significantly. After a median follow-up of 3.9 months, 57% of all treated patients with returned questionnaires reported improved symptoms. CONCLUSIONS Pyloric EsoFLIP controlled dilation shows value in the treatment of gastroparesis, both subjectively and objectively. Long-term follow-up to assess efficacy and comparative trials are warranted.
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Affiliation(s)
- Fritz Ruprecht Murray
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Valeria Schindler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Juliane Marie Hente
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Lara Maria Fischbach
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Larissa Schnurre
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Ansgar Deibel
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | | | - Aurora Maria Tatu
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Pohl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
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31
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Camilleri M, Atieh J. New Developments in Prokinetic Therapy for Gastric Motility Disorders. Front Pharmacol 2021; 12:711500. [PMID: 34504426 PMCID: PMC8421525 DOI: 10.3389/fphar.2021.711500] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/10/2021] [Indexed: 12/13/2022] Open
Abstract
Prokinetic agents amplify and coordinate the gastrointestinal muscular contractions to facilitate the transit of intra-luminal content. Following the institution of dietary recommendations, prokinetics are the first medications whose goal is to improve gastric emptying and relieve symptoms of gastroparesis. The recommended use of metoclopramide, the only currently approved medication for gastroparesis in the United States, is for a duration of less than 3 months, due to the risk of reversible or irreversible extrapyramidal tremors. Domperidone, a dopamine D2 receptor antagonist, is available for prescription through the FDA's program for Expanded Access to Investigational Drugs. Macrolides are used off label and are associated with tachyphylaxis and variable duration of efficacy. Aprepitant relieves some symptoms of gastroparesis. There are newer agents in the pipeline targeting diverse gastric (fundic, antral and pyloric) motor functions, including novel serotonergic 5-HT4 agonists, dopaminergic D2/3 antagonists, neurokinin NK1 antagonists, and ghrelin agonist. Novel targets with potential to improve gastric motor functions include the pylorus, macrophage/inflammatory function, oxidative stress, and neurogenesis. In the current review, we discuss the use of pharmacological approaches with potential to enhance motor functions in the management of gastroparesis.
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Affiliation(s)
- Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States
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32
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Abstract
Until recently, gastric motility measurements in humans were mostly limited to accommodation (using barostat or 3-dimensional imaging studies of gastric volume) and gastric emptying tests, the latter being the only one performed in routine clinical care. Accurate and easy to use techniques were lacking to assess pyloric function in health and disease. Recently, pyloric distensibility has been developed and validated to assess pyloric opening. Several studies confirmed that pyloric distensibility was decreased in gastroparesis and correlated with gastric emptying as well as gastroparesis symptoms. In addition, pyloric distensibility may predict outcome of endoscopic techniques targeting the pylorus, namely intrapyloric botulinum toxin injection and gastric per-oral pyloromyotomy. Pyloric distensibility appears therefore to be a promising and useful new tool in the workup of gastroparesis patients.
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Affiliation(s)
- Fabien Wuestenberghs
- Department of Physiology, Institut National de la Santé et de la Recherche Médicale Unit 1073 and Clinical Investigation Centre-Centre de Ressource Biologiqu 1404, Rouen University Hospital, UNIROUEN, Normandie University, Rouen, France.,Department of Gastroenterology and Hepatology, Centre Hospitalier Universitaire UCLouvain Namur, Godinne University Hospital, UCLouvain, Yvoir, Belgium
| | - Guillaume Gourcerol
- Department of Physiology, Institut National de la Santé et de la Recherche Médicale Unit 1073 and Clinical Investigation Centre-Centre de Ressource Biologiqu 1404, Rouen University Hospital, UNIROUEN, Normandie University, Rouen, France
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33
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Jehangir A, Malik Z, Petrov RV, Parkman HP. EndoFLIP and Pyloric Dilation for Gastroparesis Symptoms Refractory to Pyloromyotomy/Pyloroplasty. Dig Dis Sci 2021; 66:2682-2690. [PMID: 32749636 DOI: 10.1007/s10620-020-06510-0] [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: 04/17/2020] [Accepted: 07/21/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Gastroparesis patients may undergo pyloromyotomy/pyloroplasty for chronic refractory symptoms. However, some patients have persistent symptoms. It is unknown if balloon dilation may improve their symptoms. AIMS We aimed to (1) assess if pyloric through-the-scope (TTS) balloon dilation results in symptom improvement in gastroparesis patients with suboptimal response to pyloromyotomy/pyloroplasty and (2) determine endoscopic functional luminal imaging probe (EndoFLIP) characteristics of these patients before dilation. METHODS Patients with severe gastroparesis refractory to pyloromyotomy/pyloroplasty seen from 2/2019 to 3/2020 underwent pyloric TTS dilation after assessing the pyloric characteristics using EndoFLIP. Patients completed Gastroparesis Cardinal Symptom Index (GCSI) pre-procedurally, and GCSI and Clinical Patient Grading Assessment Scale (CPGAS) on follow-ups. RESULTS Thirteen (ten females) patients (mean age 45.2 ± 5.1 years) with severe gastroparesis symptoms (mean GCSI total score 3.4 ± 0.3) after pyloromyotomy/pyloroplasty underwent pyloric TTS dilation. Overall, there was improvement in symptoms at 1-month follow-up (mean GCSI total score 3.0 ± 0.4, mean CPGAS score 1.6 ± 0.5, p < 0.05 for both), with five (38%) patients reporting symptoms somewhat/moderately better. The patients with symptom improvement had lower pre-dilation pyloric EndoFLIP distensibility at 30 ml, 40 ml, and 50 ml than patients with little/no improvement (all p < 0.05). CONCLUSIONS In gastroparesis patients with refractory symptoms after pyloromyotomy/pyloroplasty, pyloric TTS dilation improved symptoms in about a third of the patients. Patients with symptom improvement had lower pre-dilation pyloric distensibility on EndoFLIP suggesting incomplete myotomy, pyloric muscle regeneration, or pyloric stricture. Pyloric EndoFLIP followed by TTS dilation seems to be a promising treatment for some patients with gastroparesis symptoms refractory to pyloromyotomy/pyloroplasty.
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Affiliation(s)
- Asad Jehangir
- Gastroenterology Section, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Zubair Malik
- Gastroenterology Section, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Roman V Petrov
- Department of Thoracic Surgery, Temple University School of Medicine, Philadelphia, PA, USA
| | - Henry P Parkman
- Gastroenterology Section, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA.
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34
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Shanker A, Bashashati M. Measurement of Pyloric Pressures in Gastroparesis: Stiff Competition from EndoFLIP™. Dig Dis Sci 2021; 66:2475-2477. [PMID: 32945984 DOI: 10.1007/s10620-020-06603-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/03/2020] [Indexed: 12/09/2022]
Affiliation(s)
- Aaron Shanker
- Department of Internal Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, USA
| | - Mohammad Bashashati
- Center for Neurogastroenterology and GI Motility, Division of Gastroenterology, Department of Medicine, Texas Tech University Health Sciences Center El Paso, 4800 Alberta Ave, El Paso, TX, 79905, USA.
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35
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Camilleri M, Dilmaghani S, Vosoughi K, Zheng T. A North American perspective on the ESNM consensus statement on gastroparesis. Neurogastroenterol Motil 2021; 33:e14174. [PMID: 33998746 PMCID: PMC8373778 DOI: 10.1111/nmo.14174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 12/28/2022]
Affiliation(s)
- Michael Camilleri
- Division of Gastroenterology and Hepatology Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER) Mayo Clinic Rochester MN USA
| | - Saam Dilmaghani
- Division of Gastroenterology and Hepatology Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER) Mayo Clinic Rochester MN USA
| | - Kia Vosoughi
- Division of Gastroenterology and Hepatology Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER) Mayo Clinic Rochester MN USA
| | - Ting Zheng
- Division of Gastroenterology and Hepatology Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER) Mayo Clinic Rochester MN USA
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36
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Gregor L, Wo J, DeWitt J, Yim B, Siwiec R, Nowak T, Mendez M, Gupta A, Dickason D, Stainko S, Al-Haddad M. Gastric peroral endoscopic myotomy for the treatment of refractory gastroparesis: a prospective single-center experience with mid-term follow-up (with video). Gastrointest Endosc 2021; 94:35-44. [PMID: 33373646 DOI: 10.1016/j.gie.2020.12.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/09/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Gastroparesis (GP) is a multifactorial disease associated with a large burden on the health care systems. Pyloric-directed therapies including gastric peroral endoscopic myotomy (G-POEM) can be effective in improving patient quality of life and symptom severity. We report on the safety and efficacy of G-POEM and its impact on the quality of life of patients managed at a large referral center. METHODS Consecutive patients with confirmed GP referred for G-POEM due to failure of medical therapy were included. All patients were assessed at baseline and then at 1, 3, 6, and 12 and 24 months after G-POEM using validated symptom and quality of life instruments, including the Gastroparesis Cardinal Symptom Index (GCSI), Patient Assessment of Gastrointestinal Disorders Symptom Severity Index (PAGI-SYM), and 36-Item Short Form Survey (SF-36). Patients were evaluated before and 6 months after the procedure with EGD, 4-hour scintigraphy, and pyloric EndoFLIP. Technical success was defined as the ability to perform full-thickness pyloromyotomy. Clinical response was defined as an improvement of ≥1 point on GCSI. RESULTS Fifty-two patients (median age, 48 years; range, 25-80 years, 88% female) underwent G-POEM between February 2018 and September 2020 for the following phenotypes: vomiting-predominant (n=30), dyspepsia-predominant (n=16), and regurgitation-predominant (n=6) GP. The technical success rate was 100%. Adverse events were noted in 3 of 52 patients (5.77%), and were all managed successfully endoscopically. Clinical response was achieved in 68%, 58%, and 48% of patients at 1-month, 6-month, and 12-month follow-up (P < .001, P < .001, and P < .01, respectively). When classified by the cause of GP, the clinical response rates were diabetic GP 64% (11 of 17), postsurgical GP 67% (6 of 9), and idiopathic GP 72% (13 of 18). A statistically significant improvement in PAGI-SYM scores was observed at 1, 3, 6, 12, and 24 months, in addition to significant improvement in several domains of SF-36. Mean 4-hour gastric emptying was reduced 6 months after G-POEM (10.2%) compared with baseline (36.5%, P < .001). We report a significant reduction in the number of emergency department visits and days spent in the hospital up to 24 months after G-POEM. CONCLUSIONS G-POEM appears to be a safe and feasible treatment alternative for refractory GP with significant short-term and mid-term improvements in overall symptoms, quality of life scores, and health care utilization.
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Affiliation(s)
- Lennon Gregor
- Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - John Wo
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - John DeWitt
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Brandon Yim
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Robert Siwiec
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Thomas Nowak
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Martha Mendez
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Anita Gupta
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Destenee Dickason
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sarah Stainko
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Mohammad Al-Haddad
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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Khashab MA, Baker JR, Roesch T. What is Missing Before Gastric Peroral Endoscopic Myotomy Can Go Mainstream for Treatment of Gastroparesis? Clin Gastroenterol Hepatol 2021; 19:662-664. [PMID: 32739570 DOI: 10.1016/j.cgh.2020.07.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Mouen A Khashab
- Division of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Jason R Baker
- Atrium Health, University of North Carolina, Charlotte, North Carolina
| | - Thomas Roesch
- Department of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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Camilleri M. Relationship of motor mechanisms to gastroparesis symptoms: toward individualized treatment. Am J Physiol Gastrointest Liver Physiol 2021; 320:G558-G563. [PMID: 33566731 PMCID: PMC8238170 DOI: 10.1152/ajpgi.00006.2021] [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] [Indexed: 01/31/2023]
Abstract
Following a classical paper by Dr. Keith A. Kelly published in this journal, and over the past 40 years, there has been increased understanding of the functions of different regions of the stomach, specifically the fundus, antrum, and pylorus. Several of the important physiological principles were based on in vivo animal studies that led to the appreciation of regional function and control mechanisms. These include the roles of the extrinsic parasympathetic vagal innervation, the gastric enteric nervous system and electrical syncytium consisting of pacemaker cells and smooth muscle cells, and duodenogastric reflexes providing feedback regulation following the arrival of food and hydrogen ions stimulating the release of hormones and vagal afferent mechanisms that inhibit gastric motility and stimulate pyloric contractility. Further insights on the role of regional motor functions in gastric emptying were obtained from observations in patients following diverse gastric surgeries or bariatric procedures, including fundoplication, Billroth I and sleeve gastrectomy, and sleeve gastroplasty. Antropyloroduodenal manometry and measurements of pyloric diameter and distensibility index provided important assessments of the role of antral hypomotility and pylorospasm, and these constitute specific targets for individualized treatment of patients with gastroparesis. Moreover, in patients with upper gastrointestinal symptoms suggestive of gastroparesis, the availability of measurements of gastric accommodation and pharmacological agents to reduce gastric sensitivity or enhance gastric accommodation provide additional specific targets for individualized treatment. It is anticipated that, in the future, such physiological measurements will be applied in patients to optimize choice of therapy, possibly including identifying the best candidate for pyloric interventions.
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Affiliation(s)
- Michael Camilleri
- Division of Gastroenterology and Hepatology, Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
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Conchillo JM, Straathof JWA, Mujagic Z, Brouns JH, Bouvy ND, Keszthelyi D, Masclee AA. Gastric peroral endoscopic pyloromyotomy for decompensated gastroparesis: comprehensive motility analysis in relation to treatment outcomes. Endosc Int Open 2021; 9:E137-E144. [PMID: 33532550 PMCID: PMC7834704 DOI: 10.1055/a-1311-0859] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/05/2020] [Indexed: 12/26/2022] Open
Abstract
Background and study aims There are no reliable data to predict which patients with gastroparesis (GP) would benefit the most from gastric peroral endoscopic pyloromyotomy (G-POEM). The aim of the present study was to assess whether antro-duodenal motility patterns and pyloric distensibility can predict the outcome of G-POEM in patients with decompensated GP. Patients and methods In an open-label study, patients with GP and refractory symptoms were eligible for treatment with G-POEM if treatment attempts according to a standardized stepwise protocol had failed. Baseline assessment included Gastroparesis Cardinal Symptom Index (GCSI), C13-octanoic gastric emptying breath test and high-resolution antro-duodenal manometry. Pyloric distensibility using EndoFlip measurements was assessed at baseline and 3 months after the procedure. Explorative analyses were performed on potential predictors of response using logistic regression analyses. Results Twenty-four patients with decompensated GP underwent G-POEM. At baseline, 78.3 % and 61.9 % of patients showed antral hypomotility and neuropathic motor patterns, respectively. The technical success rate was 100 % (24/24). Mean GCSI improved significantly at 3, 6, and 12 months after G-POEM ( P = 0.01). Median distensibility index (DI) improved significantly as compared with baseline (7.5 [6.9;11.7] vs. 5.3[3.1;8.1], P = 0.004). A significant correlation was found between clinical response at 6 months and pyloric DI improvement ( P = 0.003). No potential predictors of clinical response after G-POEM could be identified in an explorative analysis. Conclusions G-POEM improved pyloric distensibility patterns in patients with decompensated GP. Clinical response at 6 months after G-POEM was associated with pyloric distensibility improvement. However, no potential predictors of response could be identified from either antro-duodenal motility patterns or pyloric distensibility.
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Affiliation(s)
- José M. Conchillo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jan Willem A. Straathof
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Zlatan Mujagic
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jenny H. Brouns
- Department of Dietetics, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Nicole D. Bouvy
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Daniel Keszthelyi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ad A.M. Masclee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
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Fathalizadeh A, Klingler M, Landreneau J, Allemang M, Rodriguez J, Ponsky J, El-Hayek K. Real-time intraoperative functioning lumen imaging probe during endoscopic per-oral pyloromyotomy (pop). Surg Endosc 2021; 36:745-752. [PMID: 33427911 PMCID: PMC8741673 DOI: 10.1007/s00464-020-08237-5] [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: 08/15/2020] [Accepted: 12/08/2020] [Indexed: 01/12/2023]
Abstract
Background Endoscopic per-oral pyloromyotomy (POP) has emerged as a safe and effective first line option in medically refractory gastroparesis. Determining the appropriate extent of the pyloromyotomy continues to present a challenge as there are no standardized tools for measuring changes in pyloric distensibility during the procedure. The objective of this study was to evaluate the utility of using impedance planimetry with endoscopic functional luminal imaging probe (FLIP) to measure changes in pyloric distensibility after POP, and to compare these changes with improvement in symptoms and objective gastric emptying. Methods Patients with medically refractory gastroparesis underwent POP with FLIP measurements of the pylorus (EndoFLIP®, Medtronic, Fridley MN). FLIP measurements, as well as changes in symptoms measured by the validated gastroparesis cardinal symptom index (GCSI) and scintigraphic gastric emptying studies (GES), were evaluated before and after POP. Results A total of 14 patients underwent measurement with FLIP during POP, 12 of whom had pre- and post-POP measurements. Mean pyloric diameter increased by 1.4 mm, from 13.9 mm to 15.3 mm (p = 0.0012). Mean distensibility index increased from 6.2 mm2/mmHg to 9.1 mm2/mmHg (p = 0.0074). Successful division of the pylorus was achieved in 100% of patients with a mean operative time of 36 min and no perioperative complications. The mean length of stay was 0.7 days (0–3 days). Post-POP mean GCSI score improved from 2.97 to 2.28 at a mean follow-up time of 27 days (p < 0.001). Objective improvement in gastric emptying was observed in 80% of patients with scintigraphic GES, with mean four-hour retention decreasing from 46.3% to 32.4% (p < 0.007). Conclusions FLIP is a safe and feasible tool to provide objective measurements during POP. Larger cohorts with longer follow-up are required to determine if measured improvements in pyloric diameter and distensibility are predictive of sustained improvements in GCSI and GES.
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Affiliation(s)
- Alisan Fathalizadeh
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Michael Klingler
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Joshua Landreneau
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Matthew Allemang
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - John Rodriguez
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA.,Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Jeffrey Ponsky
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA.,Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Kevin El-Hayek
- Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA.,Division of General Surgery, MetroHealth System, Cleveland, OH, USA.,Case Western Reserve University School of Medicine, Cleveland, OH, USA
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Changes in impedance planimetry metrics predict clinical response to flexible endoscopy in Zenker's diverticulotomy. Endosc Int Open 2021; 9:E31-E34. [PMID: 33403233 PMCID: PMC7775806 DOI: 10.1055/a-1300-1350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/05/2020] [Indexed: 12/03/2022] Open
Abstract
Background and study aims Various techniques have been described for flexible endoscopic therapy for Zenker's diverticulum (ZD). Objective methods to assess myotomy effectiveness are lacking. We assessed the utility of impedance planimetry in flexible endoscopic ZD therapies and correlation with a validated symptom score. Patients and methods Patients undergoing endoscopic therapy for symptomatic ZD from February 2019 to March 2020 were included. Intraprocedural impedance planimetry was performed pre- and post-myotomy to assess esophageal diameter and distensibility index (DI). Eating Assessment Tool (EAT)-10 scores were assessed preintervention and post-intervention. Descriptive statistics were calculated. Results Thirteen patients (46 % women; mean age 80 years; 77 % peroral endoscopic myotomy technique) were included. Technical and clinical success was 100 %. No adverse events occurred. At 40 mL and 50 mL, the diameter improved (mean 2.3 mm and 2.6 mm, respectively). At 40 mL and 50 mL, the DI improved (mean 1.0 mm 2 /mmHg and 1.8 mm 2 /mmHg, respectively). EAT-10 scores improved by a mean of 15 points. Mean follow-up was 97 days. Conclusions Intraprocedural impedance planimetry may provide objective data to define success for flexible endoscopic ZD. Further research is required to corroborate these results.
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Monino L, Gonzalez JM, Barthet M, Vitton V. Role of pyloric botulinum injection and endoscopic functional luminal imaging probe in predicting the outcome of gastric peroral endoscopic pyloromyotomy: Why not? Gastrointest Endosc 2020; 92:798-799. [PMID: 32838923 DOI: 10.1016/j.gie.2020.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 04/05/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Laurent Monino
- Department of Hepatogastroenterology, Université catholique de Louvain, Cliniques universitaires Saint-Luc, Brussels, Belgium; Department of Hepatogastroenterology, Assistance Publique des Hôpitaux de Marseille, Aix-Marseille Université, Hôpital Nord, Marseille, France
| | - Jean-Michel Gonzalez
- Department of Hepatogastroenterology, Assistance Publique des Hôpitaux de Marseille, Aix-Marseille Université, Hôpital Nord, Marseille, France
| | - Marc Barthet
- Department of Hepatogastroenterology, Assistance Publique des Hôpitaux de Marseille, Aix-Marseille Université, Hôpital Nord, Marseille, France
| | - Véronique Vitton
- Department of Hepatogastroenterology, Assistance Publique des Hôpitaux de Marseille, Aix-Marseille Université, Hôpital Nord, Marseille, France
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Response. Gastrointest Endosc 2020; 92:799-800. [PMID: 32838924 DOI: 10.1016/j.gie.2020.04.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 12/11/2022]
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Desprez C, Roman S, Leroi AM, Gourcerol G. The use of impedance planimetry (Endoscopic Functional Lumen Imaging Probe, EndoFLIP ® ) in the gastrointestinal tract: A systematic review. Neurogastroenterol Motil 2020; 32:e13980. [PMID: 32856765 DOI: 10.1111/nmo.13980] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND PURPOSE The EndoFLIP® system is a method of delineating impedance and was first designed to investigate the characteristics of the esophago-gastric junction. In the last decade, its use was widened to investigate other sphincteric and non-sphincteric systems of the gastrointestinal tract. The objective of the present systematic review was to summarize the available data in literature on the use of the EndoFLIP® system in the gastrointestinal tract, including sphincteric and non-sphincteric regions. We performed a systematic review in accordance with recommendations for systematic review using PRISMA guidelines without date restriction, until June 2020, using MEDLINE-PubMed, Cochrane Library, and Google Scholar databases. Only articles written in English were included in the present review. Five hundred and six unique citations were identified from all database combined. Of those, 95 met the inclusion criteria. There was a lack of standardization among studies in terms of anesthetic drugs use, probe placement, and inflation protocol. In most cases, only small cohorts of patients were included. Most studies investigated the EGJ, with a potential use of the EndoFLIP® to identify a subgroup of patients with achalasia and for intraoperative assessment of treatment efficacy in achalasia. However, the use of EndoFLIP® in the esophageal body (esophageal panometry), other esophageal diseases (gastro-esophageal reflux disease, eosinophilic esophagitis), and other sphincter regions (anal canal, pylorus) will need further confirmatory studies. The EndoFLIP® system provides detailed geometric data of the gastrointestinal lumen but further works are needed to determine its use in clinical practice.
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Affiliation(s)
- Charlotte Desprez
- Digestive Physiology Department, Rouen University Hospital, Rouen, France
- Nutrition, Brain and Gut Laboratory, INSERM unit 1073, Rouen University Hospital, Rouen, France
| | - Sabine Roman
- Digestive Physiology Department, Hospices Civils de Lyon, Hopital H Herriot, Lyon, France
| | - Anne Marie Leroi
- Digestive Physiology Department, Rouen University Hospital, Rouen, France
- Nutrition, Brain and Gut Laboratory, INSERM unit 1073, Rouen University Hospital, Rouen, France
- Clinical Investigation Center, CIC-CRB 1404, Rouen University Hospital, Rouen, France
| | - Guillaume Gourcerol
- Digestive Physiology Department, Rouen University Hospital, Rouen, France
- Nutrition, Brain and Gut Laboratory, INSERM unit 1073, Rouen University Hospital, Rouen, France
- Clinical Investigation Center, CIC-CRB 1404, Rouen University Hospital, Rouen, France
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Katzka DA, Camilleri M. Treating the pylorus in gastroparesis: The new riddle wrapped in the ultimate enigma? Gastrointest Endosc 2020; 91:1300-1302. [PMID: 32439098 DOI: 10.1016/j.gie.2020.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 12/11/2022]
Affiliation(s)
- David A Katzka
- Clinical Enteric Neuroscience Translational and Epidemiological Research, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Bapaye A, Dubale NA. Gastric per-oral endoscopic myotomy: Indications, technique, outcomes, and future directions. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2020. [DOI: 10.18528/ijgii200014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Amol Bapaye
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
| | - Nachiket A. Dubale
- Shivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital and Research Center, Pune, India
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