Evidence map›Paper›PMID 35170365›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2022

Myotomy technique and esophageal contractility impact blown-out myotomy formation in achalasia: an in silico investigation.

Sourav Halder, Shashank Acharya, Wenjun Kou, Ryan A J Campagna, Joseph R Triggs, Dustin A Carlson, Abdul Aziz Aadam, Eric S Hungness, Peter J Kahrilas, John E Pandolfino and 1 more

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06883175 (Evolution of the Chicago Classification), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06883175 narecruitingnot on this mapstarted 2024, after this paper: background citation

Evolution of the Chicago Classification: Bridging Physiology and Mechanics

TypeinterventionalSponsorNorthwestern UniversityRan2024 to 2029Enrolled575ConditionsDysphagia, Achalasia, Esophageal, Ineffective Esophageal MotilityArmsFLIP, HRM, Prucalopride
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Blown-out myotomy: emerging phenotype in post-myotomy failure after POEM and Heller myotomy.Esophagus : official journal of the Japan Esophageal Society · 2026
    Review
  3. Saudi Gastroenterology Association (SGA) clinical care pathway and standards of care for peroral endoscopic myotomy (POEM) in achalasia.Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association · 2026
    Article
  4. Peroral direct diverticulotomy: a salvage peroral endoscopic myotomy technique for patients with "blown-out myotomy".VideoGIE : an official video journal of the American Society for Gastrointestinal Endoscopy · 2025
    Article
  5. Spastic Esophageal Disorders-How Much Muscle Should We Cut?Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Sourav HalderTheoretical and Applied Mechanics Program, McCormick School of Engineering, Northwestern University, Evanston, Illinois.ORCID 0000-0002-8366-8860
Shashank AcharyaDepartment of Mechanical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois.ORCID 0000-0001-5341-1792
Wenjun KouDivision of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Ryan A J CampagnaDepartment of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Joseph R TriggsDivision of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Dustin A CarlsonDivision of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Abdul Aziz AadamDivision of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Eric S HungnessDepartment of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Peter J KahrilasDivision of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
John E PandolfinoDivision of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Neelesh A PatankarTheoretical and Applied Mechanics Program, McCormick School of Engineering, Northwestern University, Evanston, Illinois.ORCID 0000-0002-0665-3454
Northwestern University · USUniversity of Pennsylvania · US

Funding

Role of altered response to volumetric distension in esophageal diseaseP01DK117824 · NIDDK · NORTHWESTERN UNIVERSITY AT CHICAGO · PI PANDOLFINO, JOHN E · 2018 to 2022
$7.3M
The mechanics of symptom generation in dysphagiaR01DK079902 · NIDDK · NORTHWESTERN UNIVERSITY AT CHICAGO · PI PANDOLFINO, JOHN E · 2009 to 2017
$2.9M
NIDDK NIH HHS P01 DK117824NIDDK NIH HHS R01 DK079902
6 · The paper itself

Abstract

We used in silico models to investigate the impact of the dimensions of myotomy, contraction pattern, the tone of the esophagogastric junction (EGJ), and musculature at the myotomy site on esophageal wall stresses potentially leading to the formation of a blown-out myotomy (BOM). We performed three sets of simulations with an in silico esophagus model, wherein the myotomy-influenced region was modeled as an elliptical section devoid of muscle fibers. These sets investigated the effects of the dimensions of myotomy, differing esophageal contraction types, and differing esophagogastric junction (EGJ) tone and wall stiffness at the myotomy affected region on esophageal wall stresses potentially leading to BOM. Longer myotomy was found to be accompanied by a higher bolus volume accumulated at the myotomy site. With respect to esophageal contractions, deformation at the myotomy site was greatest with propagated peristalsis, followed by combined peristalsis and spasm, and pan-esophageal pressurization. Stronger EGJ tone with respect to the wall stiffness at the myotomy site was found to aid in increasing deformation at the myotomy site. In addition, we found that an esophagus with a shorter myotomy performed better at emptying the bolus than that with a longer myotomy. Shorter myotomies decrease the chance of BOM formation. Propagated peristalsis with EGJ outflow obstruction has the highest chance of BOM formation. We also found that abnormal residual EGJ tone may be a co-factor in the development of BOM, whereas remnant muscle fibers at myotomy site reduce the risk of BOM formation.

Indexed as

Esophageal AchalasiaMyotomyEsophagogastric JunctionFundoplicationHumansManometryTreatment OutcomeachalasiadiverticulumdysphagiaHeller myotomy

Identifiers

PMID35170365
PMCPMC8993593
OpenAlexW4212872019

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.