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High resolution manometry

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https://www.readbyqxmd.com/read/28315151/peroral-endoscopic-myotomy-for-type-iii-achalasia-of-chicago-classification-outcomes-with-a-minimum-follow-up-of-24%C3%A2-months
#1
Wengang Zhang, En-Qiang Linghu
INTRODUCTION: There are only few studies about the outcomes of peroral endoscopic myotomy (POEM) for type III achalasia in a relatively large population to date. The purpose of this study was to explore the long-term efficacy of POEM for patients with type III achalasia. METHODS: There were a total of 32 consecutive patients with type III achalasia undergoing POEM in our hospital from July 2012 to October 2014. Clinical date of general characteristics, procedure-related parameters and adverse events, symptom relief, and the high-resolution manometry outcomes before and during the periodic follow-up were retrospectively collected and analyzed...
March 17, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28289859/diagnosis-of-swallowing-disorders-how-we-interpret-pharyngeal-manometry
#2
REVIEW
Charles Cock, Taher Omari
PURPOSE OF REVIEW: We provide an overview of the clinical application of novel pharyngeal high-resolution impedance manometry (HRIM) with pressure flow analysis (PFA) in our hands with example cases. RECENT FINDINGS: In our Centre, we base our interpretation of HRIM recordings upon a qualitative assessment of pressure-impedance waveforms during individual swallows, as well as a quantitative assessment of averaged PFA swallow function variables. We provide a description of two global swallowing efficacy measures, the swallow risk index (SRI), reflecting global swallowing dysfunction (higher SRI = greater aspiration risk) and the post-swallow impedance ratio (PSIR) detecting significant post-swallow bolus residue...
March 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28277491/manometric-subtypes-of-ineffective-esophageal-motility
#3
Mirjam Hiestand, Ala' Abdel Jalil, Donald O Castell
OBJECTIVES: Ineffective esophageal motility (IEM) is characterized by well-defined manometric criteria. However, much variation exists within the diagnosis: Some patients exhibit exactly the required five weak swallows to make the diagnosis. Others show consistently ineffective swallows with total absence of any normal swallow. "We hypothesize" there are two different manometric subtypes of IEM; IEM Alternans (IEM-A) and IEM Persistens (IEM-P). METHODS: A total of 231 IEM patients were identified by high-resolution manometry (HRM)...
March 9, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28273277/esophageal-motility-in-men-and-women-evaluated-by-high-resolution-manometry
#4
Tarciana Vieira Costa, Roberto Oliveira Dantas
BACKGROUND: Esophageal motility has been described in the literature as having differences between men and women. Most of these investigations use the water perfusion method for esophageal manometry. In this investigation the esophageal motility of men and women was compared with high-resolution manometry of the esophagus. OBJECTIVE: To compare the esophageal motility of men and women with the high-resolution manometry method for esophageal manometry, performed in the sitting position...
February 23, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28270671/editorial-identifying-colonic-motor-dysfunction-in-chronic-constipation-with-high-resolution-manometry-pan-colonic-pressurizations
#5
Adil E Bharucha
In selected centers, colonic manometry with non-high-resolution catheters is used to document colonic motor dysfunction in chronic constipation. Recently, high-resolution manometry (HRM) catheters, with more closely spaced sensors have been used for this purpose. Corestti et al. assessed colonic pressures with HRM in 17 healthy people and 10 constipated patients. The main finding was pan-colonic pressurizations, which occurred frequently, increased after eating and cholinergic stimulation, were associated with the desire to pass flatus, and were less frequent in slow-transit constipation...
March 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28268924/modeling-of-pharyngoesophageal-segment-during-tracheoesophageal-phonation-in-total-laryngectomy-patients-with-preliminary-validation
#6
Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos
For patients with large or recurrent laryngeal cancer, total laryngectomy surgery is usually performed. In the absence of a larynx, tracheoesophageal (TE) voice is the gold standard for alaryngeal phonation. The mechanisms underlying TE voice are unknown, but pharyngoesophageal (PE) segment vibration has been shown to play a key role. The aim of this study was to systematically explore the mechanics of PE segment vibration during TE phonation. A 2D axisymmetric finite-element model with two domains representing the air and PE wall was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267445/abdominal-compression-by-waist-belt-aggravates-gastroesophageal-reflux-primarily-by-impairing-esophageal-clearance
#7
David R Mitchell, Mohammad H Derakhshan, Angela A Wirz, Stuart A Ballantyne, Kenneth E L McColl
BACKGROUND & AIMS: Central obesity promotes gastroesophageal reflux and this may be related to increased intra-abdominal pressure. We investigated the effect of increasing abdominal pressure by waist belt on reflux in patients with reflux disease. METHODS: We performed a prospective study of patients with esophagitis (n=8) or Barrett's esophagus (n=6); their median age was 56 years and their median body mass index, 26.8. Proton pump inhibitors were stopped at least 7 days before the study and H2 receptor antagonists were stopped for at least 24 hours before...
March 3, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28260353/is-there-a-role-for-high-resolution-manometry-in-gerd-diagnosis
#8
Salvatore Tolone, Edoardo Savarino, Ludovico Docimo
Gastroesophageal reflux disease (GERD) is a condition, which develops when the reflux of stomach contents causes troublesome symptoms and/or complications. In patients with alarm symptoms or signs or in those refractory to antiacid therapy, it is indicated to perform instrumental tests to correctly diagnose GERD presence. Esophageal manometry is currently considered the gold standard test for the diagnosis of esophageal dysmotility. However, it has shown limited capability in diagnosing GERD. With the advent of high resolution manometry (HRM), more accurate evaluations of esophageal motility are now possible...
March 3, 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28256028/pharyngeal-stimulus-induced-reflexes-are-impaired-in-infants-with-perinatal-asphyxia-does-maturation-modify
#9
P S Jensen, I K Gulati, T R Shubert, S Sitaram, M Sivalingam, K A Hasenstab, M A El-Mahdy, S R Jadcherla
BACKGROUND: Development of pharyngo-esophageal protective reflexes among infants with hypoxic ischemic encephalopathy (HIE) is unclear. Our aim was to distinguish these reflexes from controls and examine the maturational changes in HIE infants. METHODS: We evaluated 14 HIE infants (seven males) at 41.4±0.6 (HIE Time-1) and 46.5±0.6 (HIE Time-2) weeks postmenstrual age (PMA). Seven controls (three males) were evaluated at 43.5±1.3 weeks PMA. Graded pharyngeal stimulation with liquids (0...
March 3, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28254773/pharyngeal-peristaltic-pressure-variability-operational-range-and-functional-reserve
#10
Mark K Kern, Gokulakrishnan Balasubramanian, Patrick Sanvanson, Dilpesh Agrawal, Ashley Wuerl, Reza Shaker
BACKGROUND: Current understanding of pharyngeal motor function remains incomplete. Among the remaining gaps of knowledge in this regard is the magnitude of variability of pharyngeal peristaltic pressure amplitude. While variability can pose difficulty in interpretation of manometric findings its magnitude can inform the operational range and reserve of the pharyngeal contractile function, Aims: To define the intra-, inter-subject and inter-session variability of select pharyngeal manometric parameters and, using this information, determine the number of swallow repetitions for acquiring reliable pharyngeal manometric data...
March 2, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28239077/a-review-of-diagnosis-of-gerd
#11
REVIEW
In Du Jeong
The prevalence of gastroesophageal reflux disease (GERD) and the incidence of some of its complications have risen strikingly over the last few decades. With the accumulation in our understanding on the pathophysiology of GERD along with the development of proton pump inhibitors, the diagnostic and therapeutic approaches to the GERD have changed dramatically over the past decade. However, The GERD still poses a problem to many clinicians since the spectrum of the disease has evolved to encompass more challenging presentations such as refractory GERD and extraesophageal manifestations...
February 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28231565/correlation-of-high-resolution-manometric-findings-with-symptoms-of-dysphagia-and-endoscopic-features-in-adults-with-eosinophilic-esophagitis
#12
Ulrike von Arnim, Arne Kandulski, Jochen Weigt, Peter Malfertheiner
BACKGROUND: Eosinophilic esophagitis (EoE) presents with dysphagia, but data about motility patterns using high-resolution manometry (HRM) are rare. We aimed at evaluating esophageal motility patterns in EoE and their correlation to endoscopic and dysphagia scores. METHODS: Twenty-six EoE patients and 23 controls were included after 4 weeks of treatment with proton pump inhibitors. Dysphagia and endoscopic scores were evaluated before performing HRM. EoE patients were classified to have fibrostenotic (FS) or inflammatory (IF) type...
February 23, 2017: Digestive Diseases
https://www.readbyqxmd.com/read/28231362/the-use-of-high-resolution-pharyngeal-manometry-as-biofeedback-in-dysphagia-therapy
#13
Ashli O'Rourke, Kate Humphries
No abstract text is available yet for this article.
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28229560/comparison-of-motor-diagnoses-by-chicago-classification-versions-2-0-and-3-0-on-esophageal-high-resolution-manometry
#14
A Patel, B Cassell, N Sainani, D Wang, B Shahid, M Bennett, F A Mirza, S Munigala, C P Gyawali
BACKGROUND: The Chicago Classification (CC) uses high-resolution manometry (HRM) software tools to designate esophageal motor diagnoses. We evaluated changes in diagnostic designations between two CC versions, and determined motor patterns not identified by either version. METHODS: In this observational cohort study of consecutive patients undergoing esophageal HRM over a 6-year period, proportions meeting CC 2.0 and 3.0 criteria were segregated into esophageal outflow obstruction, hypermotility, and hypomotility disorders...
February 23, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28227129/modeling-of-pharyngoesophageal-segment-during-tracheoesophageal-phonation-in-total-laryngectomy-patients-with-preliminary-validation
#15
Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Siwei Bai, Michal Szczesniak, Socrates Dokos, Ian Cook, Julia Maclean, Teng Zhang
For patients with large or recurrent laryngeal cancer, total laryngectomy surgery is usually performed. In the absence of a larynx, tracheoesophageal (TE) voice is the gold standard for alaryngeal phonation. The mechanisms underlying TE voice are unknown, but pharyngoesophageal (PE) segment vibration has been shown to play a key role. The aim of this study was to systematically explore the mechanics of PE segment vibration during TE phonation. A 2D axisymmetric finite-element model with two domains representing the air and PE wall was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223738/peroral-endoscopic-myotomy-for-treatment-of-guillain-barre-syndrome-associated-achalasia-a-rare-case
#16
Seung Kak Shin, Kyoung Oh Kim, Eui Joo Kim, Su Young Kim, Jung Ho Kim, Yoon Jae Kim, Jun-Won Chung, Kwang An Kwon, Dong Kyun Park
Guillain-Barre syndrome (GBS)-associated achalasia is a very rare disease of uncertain cause. We report the case of a patient diagnosed with GBS-associated type I achalasia who was successfully treated with peroral endoscopic myotomy (POEM). A 30-year-old man who was diagnosed with GBS 3 mo before was referred to our department with dysphagia and meal-related regurgitation. The results of esophagography, endoscopy, and high-resolution manometry (HRM) revealed type I achalasia. POEM that utilized a submucosal tunneling technique was performed to treat the GBS-associated type I achalasia...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28216670/intraluminal-pressure-patterns-in-the-human-colon-assessed-by-high-resolution-manometry
#17
Ji-Hong Chen, Yuanjie Yu, Zixian Yang, Wen-Zhen Yu, Wu Lan Chen, Hui Yu, Marie Jeong-Min Kim, Min Huang, Shiyun Tan, Hesheng Luo, Jianfeng Chen, Jiande D Z Chen, Jan D Huizinga
Assessment of colonic motor dysfunction is rarely done because of inadequate methodology and lack of knowledge about normal motor patterns. Here we report on elucidation of intraluminal pressure patterns using High Resolution Colonic Manometry during a baseline period and in response to a meal, in 15 patients with constipation, chronically dependent on laxatives, 5 healthy volunteers and 9 patients with minor, transient, IBS-like symptoms but no sign of constipation. Simultaneous pressure waves (SPWs) were the most prominent propulsive motor pattern, associated with gas expulsion and anal sphincter relaxation, inferred to be associated with fast propagating contractions...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28215047/pharyngeal-swallowing-pressures-in-the-base-of-tongue-and-hypopharynx-regions-identified-with-three-dimensional-manometry
#18
Sarah P Rosen, Corinne A Jones, Timothy M McCulloch
OBJECTIVES: This study aims to use three-dimensional (3D) high-resolution manometry to identify circumferential pressure patterns generated within the asymmetrical base-of-tongue and hypopharynx regions of the pharynx during deglutition. STUDY DESIGN: Case series. METHODS: Radial pressures in the regions of interest were evaluated during swallowing events in 12 healthy subjects using 3D high-resolution manometry. RESULTS: Repeated measures analysis of variance revealed asymmetrical pharyngeal clearance pressures in the base-of-tongue and hypopharynx regions during swallowing...
February 19, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28195136/relationships-between-motor-patterns-and-intraluminal-pressure-in-the-3-taeniated-proximal-colon-of-the-rabbit
#19
Xiaojing Quan, Zixian Yang, Mai Xue, Ji-Hong Chen, Jan D Huizinga
Manometry is used worldwide to assess motor function of the gastrointestinal tract, and the measured intraluminal pressure patterns are usually equated with contraction patterns. In the colon, simultaneous pressure increases throughout the entire colon are most often called simultaneous contractions, although this inference has never been verified. To evaluate the relationship between pressure and contraction in the colon we performed high-resolution manometry and measured diameter changes reflecting circular muscle contractions in the rabbit colon...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194667/three-dimensional-anorectal-manometry-enhances-diagnostic-gain-by-detecting-sphincter-defects-and-puborectalis-pressure
#20
Shreya Raja, Francis C Okeke, Ellen M Stein, Sameer Dhalla, Monica Nandwani, Kristle L Lynch, C Prakash Gyawali, John O Clarke
BACKGROUND: Constipation and fecal incontinence (FI) are common and are often evaluated with anorectal manometry. Three-dimensional high-resolution anorectal manometry (HRAM) is a promising technology; however, implementation has been limited by lack of metrics and unclear clinical utility. AIM: To investigate the diagnostic utility of 3D HRAM compared to 2D HRAM. METHODS: Three-dimensional HRAM studies performed from April 2012 to October 2013 were identified and re-interpreted by two blinded investigators examining 3D function...
February 13, 2017: Digestive Diseases and Sciences
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