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Bolus effects swallowing

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https://www.readbyqxmd.com/read/29782042/effect-of-tongue-palate-contact-mode-on-food-transport-during-mastication
#1
Tomoko Iizumi, Mariko Yoshino, Hitoshi Kagaya, Kazuhiro Hori, Takahiro Ono
The physiological mechanisms underlying Stage II transport (STII), during which comminuted solid food is transported from the oral cavity into the meso-pharynx for aggregation into a pre-swallow bolus, have yet to be clarified. The purpose of the present study was to investigate relationships between tongue-palate contact during mastication and incidence of STII by synchronized analysis of tongue pressure production on a hard palate and video-endoscopic (VE) images during mastication. Tongue pressure at 5 measuring points with an ultra-thin sensor sheet attached to the hard palate and trans-nasal VE images while masticating corned beef was recorded for 12 healthy subjects...
May 21, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29731889/swallowing-disorder-following-salvage-total-pharyngo-laryngo-esophagectomy-with-free-jejunum-reconstruction
#2
Takashi Maruo, Minoru Sakuraba, Takeshi Shinozaki, Toshifumi Tomioka, Wataru Okano, Satoko Arahira, Yoshie Iino, Ryuichi Hayashi
For recurrent cases or residual cases following concomitant chemo-radiation therapy (CCRT), salvage surgery is a frequently used treatment options. A swallowing disorder is one of the major complications of CCRT. The purpose of the present study was to evaluate the effect of CCRT on swallowing function in patients who underwent salvage total pharyngo-laryngo-esophagectomy (TPLE), and to evaluate the importance of pharyngeal constriction in patients who underwent TPLE. Between 2008 January and 2014 May, 54 patients were treated with salvage TPLE following CCRT or TPLE at the National Cancer Center Hospital East, Chiba, Japan and were included in the present study...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29685280/silage-review-silage-feeding-management-silage-characteristics-and-dairy-cow-feeding-behavior
#3
REVIEW
R J Grant, L F Ferraretto
Feeding environment and feed accessibility influence the dairy cow's response to the ration and forage composition. Fiber content, physical form, and fermentability influence feeding behavior, feed intake, and overall cow metabolic and lactational responses to forage. It is possible to vary eating time of lactating dairy cattle by over 1 h/d by changing dietary silage fiber content, digestibility, and particle size. Optimizing silage particle size is important because excessively long particles increase the necessary chewing to swallow a bolus of feed, thereby increasing eating time...
May 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29542847/impaired-motility-in-barrett-s-esophagus-a-study-using-high-resolution-manometry-with-physiologic-challenge
#4
S Sanagapalli, A Emmanuel, R Leong, S Kerr, L Lovat, R Haidry, M Banks, D Graham, A Raeburn, N Zarate-Lopez, R Sweis
BACKGROUND: Esophageal dysmotility may predispose to Barrett's esophagus (BE). We hypothesized that high-resolution manometry (HRM) performed with additional physiologic challenge would better delineate dysmotility in BE. METHODS: Included patients had typical reflux symptoms and underwent endoscopy, HRM with single water swallows and adjunctive testing with solids and rapid drink challenge (RDC) before ambulatory pH-impedance monitoring. BE and endoscopy-negative reflux disease (ENRD) subjects were compared against functional heartburn patient-controls (FHC)...
March 15, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29522797/effect-of-bolus-volume-and-flow-time-on-temporospatial-coordination-in-oropharyngeal-pressure-production-in-healthy-subjects
#5
Jitsuro Yano, Yoichiro Aoyagi, Takahiro Ono, Kazuhiro Hori, Wakami Yamaguchi, Shigehiro Fujiwara, Isami Kumakura
The effects of bolus volume and flow time on the sequential coordination of tongue pressure (TP) and pharyngeal pressure (PP), which are important in the biomechanics of swallowing, are unclear. In this study, we measured TP and PP simultaneously in 10 healthy adults at multiple points during dry swallowing and the swallowing of 5 ml and 15 ml of liquids with different viscosities, and investigated changes in the timing of the onset, peak, and offset of these pressures. TP was measured using a sensor sheet system with five measuring points on the hard palate, and PP was measured using a manometry catheter with four measuring points...
May 15, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29445857/superior-and-anterior-hyoid-displacement-during-swallowing-in-non-dysphagic-individuals
#6
James Curtis, Jonelyn Langenstein, Sarah Schneider
The Dynamic Swallow Study (DSS) is a methodology used to objectively and quantitatively assess swallowing kinematics during Videofluoroscopic Swallow Studies (VFSS). No DSS normative data exist delineating superior and anterior hyoid displacement (Hsup and Hant , respectively), nor the ratio between Hsup and Hant (SAratio ). The aims of this study were to (1) establish normative data for Hsup , Hant , and SAratio and (2) assess the effects of age, sex, and bolus size on these measures in non-dysphagic patients, within the context of DSS...
February 14, 2018: Dysphagia
https://www.readbyqxmd.com/read/29357492/involvement-of-hypoglossal-and-recurrent-laryngeal-nerves-on-swallowing-pressure
#7
Takanori Tsujimura, Taku Suzuki, Midori Yoshihara, Shogo Sakai, Naomi Koshi, Hirokazu Ashiga, Naru Shiraishi, Kojun Tsuji, Jin Magara, Makoto Inoue
Swallowing pressure generation is important to ensure safe transport of an ingested bolus without aspiration or leaving residue in the pharynx. To clarify the mechanism, we measured swallowing pressure at the oropharynx (OP), upper esophageal sphincter (UES), and cervical esophagus (CE) using a specially designed manometric catheter in anesthetized rats. A swallow-evoked by punctate mechanical stimulation to the larynx-was identified by recording activation of the suprahyoid and thyrohyoid muscles using electromyography (EMG)...
January 4, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29280015/the-mendelsohn-maneuver-and-its-effects-on-swallowing-kinematic-analysis-in-three-dimensions-using-dynamic-area-detector-ct
#8
Yoko Inamoto, Eiichi Saitoh, Yuriko Ito, Hitoshi Kagaya, Yoichiro Aoyagi, Seiko Shibata, Kikuo Ota, Naoko Fujii, Jeffrey B Palmer
This study investigated the effects of Mendelsohn maneuver with three-dimensional kinematic analysis. Nine female speech-language pathologists (nine females, mean ± SD 27.1 ± 3.5 years old) underwent 320-row area detector scan during swallows of 4-ml nectar-thick liquid using with no maneuvers (control) and with Mendelsohn maneuver (MM). Critical event timing (hyoid, soft palate, epiglottis, laryngeal vestibule, true vocal cords (TVC), UES), hyoid and laryngeal excursion, cross-sectional area of UES, and volume of pharyngeal cavity and bolus were measured and compared between two swallows...
December 26, 2017: Dysphagia
https://www.readbyqxmd.com/read/29247533/development-of-an-oesophageal-stimulation-method-to-elicit-swallowing-reflex-in-humans
#9
H Taniguchi, Y Aoyagi, K Matsuo, K Nakagawa, E Saitoh
Swallowing reflex is known to be evoked by gastroesophageal regurgitation or oesophageal stimulation in animal studies. However, details regarding the stimulating material, bolus size and stimulation area remain unclear for the stimulation-induced type of swallowing reflex in humans. Here, we evaluated the effects of different kinds of stimulation via water and air injection of the oesophagus on the initiation of the swallowing reflex. Nine healthy individuals participated in this study. A fibre-optic endoscope was passed transnasally, and a thin catheter for injection was passed through the other side...
March 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29236916/videofluoroscopic-analysis-of-different-volumes-of-liquid-bolus-swallowing-in-healthy-individuals-comparison-between-height-and-sex
#10
Marcia Regina Kfouri Bernardi Regueiro, Weslania Viviane Nascimento, Luana Casari Parreira, Roberto Oliveira Dantas
OBJECTIVE: The volume of swallowed bolus affects the pharyngeal transit duration. The sex and corporal height of individuals may likely influence this effect. The aim of this investigation was to determine the influence of sex and corporal height on the pharyngeal transit modification produced by the swallowed bolus volume. METHODS: Forty healthy volunteers, 20 men and 20 women, including tall (10 men and 10 women, corporal height: 1.71--2.07m) and short (10 men and 10 women, corporal height: 1...
November 2017: Clinics
https://www.readbyqxmd.com/read/29180855/aural-stimulation-with-capsaicin-ointment-improved-swallowing-function-in-elderly-patients-with-dysphagia-a-randomized-placebo-controlled-double-blind-comparative-study
#11
Eiji Kondo, Osamu Jinnouchi, Seiichi Nakano, Hiroki Ohnishi, Ikuji Kawata, Hidehiko Okamoto, Noriaki Takeda
Objective: The aim of this study was to assess whether aural stimulation with ointment containing capsaicin improves swallowing function in elderly patients with dysphagia. Study design: A randomized, placebo-controlled, double-blind, comparative study. Settings: Secondary hospital. Patients and methods: Twenty elderly dysphagic patients with a history of cerebrovascular disorder or Parkinson's disease were randomly divided into two groups: 10 receiving aural stimulation with 0...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29157238/evaluation-of-normal-swallowing-functions-by-using-dynamic-high-density-surface-electromyography-maps
#12
Mingxing Zhu, Bin Yu, Wanzhang Yang, Yanbing Jiang, Lin Lu, Zhen Huang, Shixiong Chen, Guanglin Li
BACKGROUND: Swallowing is a continuous process with substantive interdependencies among different muscles, and it plays a significant role in our daily life. The aim of this study was to propose a novel technique based on high-density surface electromyography (HD sEMG) for the evaluation of normal swallowing functions. METHODS: A total of 96 electrodes were placed on the front neck to acquire myoelectric signals from 12 healthy subjects while they were performing different swallowing tasks...
November 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29147919/alterations-to-swallowing-physiology-as-the-result-of-effortful-swallowing-in-healthy-seniors
#13
Sonja M Molfenter, Chuan-Ya Hsu, Ying Lu, Cathy L Lazarus
A significant proportion of healthy seniors report difficulty swallowing, thought to result from age-related decline in muscle bulk/function. Effortful Swallowing (ES) is used both as a compensatory maneuver to improve pharyngeal propulsion/clearance and has been proposed as an exercise to improve pharyngeal strength. This study sought to quantify the immediate kinematic, temporal, and functional changes during an ES maneuver to quantify its exercise potential to combat age-related changes in swallowing. Videofluoroscopy data were collected from 44 healthy seniors (21 male) over 65 years old (mean = 76...
November 17, 2017: Dysphagia
https://www.readbyqxmd.com/read/29114767/age-related-variability-in-tongue-pressure-patterns-for-maximum-isometric-and-saliva-swallowing-tasks
#14
Melanie Peladeau-Pigeon, Catriona M Steele
Purpose: The ability to generate tongue pressure plays a major role in bolus transport in swallowing. In studies of motor control, stability or variability of movement is a feature that changes with age, disease, task complexity, and perturbation. In this study, we explored whether age and tongue strength influence the stability of the tongue pressure generation pattern during isometric and swallowing tasks in healthy volunteers. Method: Tongue pressure data, collected using the Iowa Oral Performance Instrument, were analyzed from 84 participants in sex-balanced and decade age-group strata...
November 9, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/29066662/dysphagia-management-in-bilateral-frontal-opercular-syndrome-foix-chavany-marie-syndrome
#15
Thomas Richards, Thomas Tudor Hughes, Jake Moss, Tessa Lomax
An 80-year-old woman was admitted to hospital with acute anarthria and severe dysphagia, characterised by loss of voluntary control of the muscles of facial expression, mastication, bolus manipulation (tongue) and pharyngeal constriction, with relative preservation of involuntary movements. Brain imaging revealed an acute infarct in the left frontal operculum and an area of gliosis consistent with an old infarct in the right frontal operculum. A clinical and radiological diagnosis of bilateral anterior frontal opercular syndrome (Foix-Chavany-Marie-syndrome) was made...
October 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29063658/physiological-augmentation-of-esophageal-distension-pressure-and-peristalsis-during-conditions-of-increased-esophageal-emptying-resistance
#16
G J Brink, W Y Lei, T I Omari, M M J Singendonk, J S Hung, T T Liu, C H Yi, C L Chen
BACKGROUND: Abdominal compression has been implemented as a provocative maneuver in high-resolution impedance manometry (HRIM) to "challenge" normal esophageal physiology with the aim of revealing abnormal motor patterns which may explain symptoms. In this study, we measured the effects of abdominal compression on esophageal functioning utilizing novel pressure-impedance parameters and attempted to identify differences between healthy controls and globus patients. METHODS: Twenty-two healthy volunteers (aged 23-32 years, 41% female) and 22 globus patients (aged 23-72 years, 68% female) were evaluated with HRIM using a 3...
October 24, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29054821/an-in-vitro-experiment-to-simulate-how-easy-tablets-are-to-swallow
#17
M Marconati, S Raut, A Burbidge, J Engmann, M Ramaioli
The compliance of patients to solid oral dosage forms is strongly conditioned by the perceived ease of swallowing, especially in geriatric and pediatric populations. This study proposes a method, based on an in vitro model of the human oropharyngeal cavity, to study quantitatively the oral phase of human swallowing in presence of single or multiple tablets. The dynamics of swallowing was investigated varying the size and shape of model tablets and adjusting the force applied to the mechanical setup to simulate tongue pressure variations among individuals...
January 15, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29026386/effect-of-posture-on-swallowing
#18
Ahmad H Alghadir, Hamayun Zafar, Einas S Al-Eisa, Zaheen A Iqbal
BACKGROUND: Swallowing is a systematic process. Any structural, physiological or neurological disturbance in this process may cause dysphagia. Although there are studies that report head/neck movements during mastication, there are fewer studies that show the effect of different head/neck postures on difficulty while swallowing. OBJECTIVES: To observe the effect of different body postures on the self-perceived difficulty while swallowing in normal healthy subjects...
March 2017: African Health Sciences
https://www.readbyqxmd.com/read/28967219/the-effect-of-aging-on-mastication-and-swallowing-parameters-according-to-the-hardness-change-of-solid-food
#19
Hyoung Su Park, Don-Kyu Kim, Sang Yi Lee, Ki-Hwan Park
As part of the aging process, multiple oral physiologic changes occur and these changes may cause individuals to reduce food intake or switch the types of food texture. Thus, the need to develop food products for the elderly has increased. To evaluate the suitability of the food products for the elderly, the evaluation method should be verified and it is important to identify the parameters of mastication and swallowing. Therefore, the purpose of this study was to compare the differences of mastication and swallowing parameters between the young adults and the elderly depending on the varying hardness of rice food product...
October 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28891595/the-effect-of-bolus-volume-on-laryngeal-closure-and-ues-opening-in-swallowing-kinematic-analysis-using-320-row-area-detector-ct-study
#20
S Shibata, Y Inamoto, E Saitoh, H Kagaya, Y Aoyagi, K Ota, R Akahori, N Fujii, J B Palmer, M González-Fernández
This study investigated the effects of three different volumes of honey-thick liquid on the temporal characteristics of swallowing. Twenty-six healthy subjects (15 males, 11 females) underwent 320-row area detector CT scan while swallowing 3, 10 and 20 mL of honey-thick liquid barium. Three-dimensional images were created at 10 images/s. Kinematic events involving six structures (velopharynx, hyoid bone, epiglottis, laryngeal vestibule (LV), true vocal cords (TVC), upper esophageal sphincter (UES)) and timing of bolus movement were timed using frame by frame analysis...
September 11, 2017: Journal of Oral Rehabilitation
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