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Bolus effects swallowing

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https://www.readbyqxmd.com/read/29280015/the-mendelsohn-maneuver-and-its-effects-on-swallowing-kinematic-analysis-in-three-dimensions-using-dynamic-area-detector-ct
#1
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-esophageal-stimulation-method-to-elicit-swallowing-reflex-in-humans
#2
Hiroshige Taniguchi, Yoichiro Aoyagi, Koichiro Matsuo, Kazuharu Nakagawa, Eiichi Saitoh
Swallowing reflex is known to be evoked by gastroesophageal regurgitation or esophageal 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 human. Here, we evaluated the effects of different kinds of stimulation via water and air injection of the esophagus on the initiation of the swallowing reflex. Nine healthy individuals participated in this study. A fiberoptic endoscope was passed transnasally and a thin catheter for injection was passed through the other side...
December 16, 2017: 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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...
October 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29026386/effect-of-posture-on-swallowing
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28858646/inferring-the-effects-of-saliva-on-liquid-bolus-flow-using-computer-simulation
#14
Andrew Ho, Rebecca Affoo, Nicole Rogus-Pulia, Mark Nicosia, Yoko Inamoto, Eiichi Saitoh, Sheldon Green, Sidney Fels
Computer simulation of liquid bolus flow is used to test the assumption that a slip boundary condition approximates a healthy swallow due to the presence of saliva lubricating the bolus. Six dynamic, 320-row area detector CT (ADCT) sequences of normal subjects swallowing thin, nectar, and honey-thick liquids are used in this work. The aerodigestive tract is segmented from the images in order to create a dynamic 3D geometry, which is subsequently used to drive a Smoothed Particle Hydrodynamics (SPH) fluid simulation of the bolus...
July 29, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28857171/characterization-of-swallow-modulation-in-response-to-bolus-volume-in-healthy-subjects-accounting-for-catheter-diameter
#15
Lara Ferris, Mistyka Schar, Lisa McCall, Sebastian Doeltgen, Ingrid Scholten, Nathalie Rommel, Charles Cock, Taher Omari
OBJECTIVES/HYPOTHESIS: Characterization of the pharyngeal swallow response to volume challenges is important for swallowing function assessment. The diameter of the pressure-impedance recording catheter may influence these results. In this study, we captured key physiological swallow measures in response to bolus volume utilizing recordings acquired by two catheters of different diameter. STUDY DESIGN: Ten healthy adults underwent repeat investigations with 8- and 10-Fr catheters...
August 31, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28853169/effect-of-body-posture-on-chewing-behaviours-in-healthy-volunteers
#16
T Iizumi, J Magara, T Tsujimura, M Inoue
Mastication is essential to the eating process and forms an important part of feeding behaviour. Many factors related to the food bolus, such as bolus texture and size, are known to influence mastication. The aim of this study was to determine the effects of body posture on (i) chewing duration prior to the first swallow and (ii) patterns of mastication-related EMG activity. We asked 10 healthy adults to chew 8 g of steamed rice with barium sulphate while we recorded masseter, suprahyoid and infrahyoid muscle activity and simultaneously collected videofluorographic images...
November 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28831570/differential-response-pattern-of-oropharyngeal-pressure-by-bolus-and-dry-swallows
#17
Mana Hasegawa, Masayuki Kurose, Keiichiro Okamoto, Yoshiaki Yamada, Takanori Tsujimura, Makoto Inoue, Taisuke Sato, Takatsune Narumi, Noritaka Fujii, Kensuke Yamamura
The aim of this study was to determine if bolus and dry swallow showed similar pressure changes in the oropharynx using our newly developed device. A unique character of it includes that baropressure can be measured with the sensor being placed in the balloon and can assess the swallowing mechanics in terms of pressure changes in the oropharynx with less influences of direct contacts of boluses and oropharyngeal structures during swallow indirectly. Fifteen healthy subjects swallowed saliva (dry), 15 ml of water, 45 ml of water, and 15 ml of two different types of food in terms of viscosity (potage soup-type and mayonnaise-type foods)...
August 23, 2017: Dysphagia
https://www.readbyqxmd.com/read/28814028/quantitative-assessment-of-swallowing-activity-by-mmg-measurement-with-pvdf-film
#18
Hashimoto Takuya, Tsukagoshi Keita, Koike Takuji
Difficulty of swallowing, called dysphagia, leads to aspiration pneumonia which is particularly a big health concern in aging societies. Therefore, prevention and treatment of dysphagia would contribute to extending healthy-life and QOL of elderly people and decreasing healthcare cost. Robotics technologies are expected as one of the effective methods to solve the problem in terms of detecting malfunction in swallowing and recovering swallowing function. The aim of this study is to investigate muscle activity during normal swallowing using mechanomyography (MMG) with PolyVinylidene DiFluoride (PVDF) film which is a ferroelectrics polymer...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28799699/a-comparative-study-on-the-therapeutic-effect-of-trpv1-trpa1-and-trpm8-agonists-on-swallowing-dysfunction-associated-with-aging-and-neurological-diseases
#19
D Alvarez-Berdugo, L Rofes, V Arreola, A Martin, L Molina, P Clavé
BACKGROUND: Oropharyngeal sensory impairment is a potential target to treat swallowing dysfunction in patients with oropharyngeal dysphagia (OD). AIM: To assess the therapeutic effect of stimulating oropharyngeal sensory afferents with TRPV1, TRPA1, or TRPM8 agonists vs increasing bolus viscosity in older and neurologic patients with OD by comparing four studies of similar experimental design. METHODS: Swallow function of 142 older patients with impaired safety of swallow at nectar ([50-350] mPa·s) viscosity was evaluated with videofluoroscopy (VFS) while treated with TRPV1 (150 μmol/L), TRPV1/A1 (150 μmol/L and 1 mmol/L), or TRPM8 (1 mmol/L or 10 mmol/L) agonists or modified starch (MS) at spoon thick viscosity (>1750 mPa·s)...
August 11, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28766750/using-food-comfortability-to-compare-food-s-sensory-characteristics-expectations-of-elderly-people-with-or-without-oral-health-problems
#20
Mathilde Vandenberghe-Descamps, Claire Sulmont-Rossé, Chantal Septier, Gilles Feron, Hélène Labouré
Food consumption is by far the most important point where food's organoleptic properties can be perceived and can elicit sensory pleasure. Ageing is often accompanied by oral impairments. Those impairments may impact food perception by changing texture perception and the release of flavor components, which have a significant impact on food acceptability. The present study aimed at evaluating the impact of oral health on the perception of food comfortability in an elderly population. This was achieved by asking elderly people with a good oral health and elderly people with poor oral health to rate six cereal products and six meat products using a food comfortability questionnaire...
August 2017: Journal of Texture Studies
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