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Bolus volume swallowing

Sachie Wada, Takaharu Goto, Keiko Fujimoto, Megumi Watanabe, Kan Nagao, Atsuko Nakamichi, Tetsuo Ichikawa
The purpose of this study was to survey the changes that occur in bolus texture from intake to swallowing during the mastication process for four types of food materials and to identify how texture is related to the number of chews. We recruited 15 young Japanese participants for this study. The subjects were asked to spit the food bolus just before swallowing when eating four different foods: cracker, boiled rice, hard gelatine gel, and soft gelatine gel. Three physical properties (hardness, adhesiveness, and cohesiveness) were measured in the bolus after being chewed for 25, 50, 75, 100, and 125% of the normal number of chews...
April 2017: Journal of Texture Studies
Lydia Muss, Janina Wilmskoetter, Kerstin Richter, Constanze Fix, Soenke Stanschus, Tobias Pitzen, Joerg Drumm, Sonja Molfenter
Purpose: The purpose of this study was to explore the impact of anterior cervical discectomy and fusion (ACDF) with anterior instrumentation on swallowing function and physiology as measured on videofluoroscopic swallowing studies. Method: We retrospectively analyzed both functional measures (penetration-aspiration, residue) and physiological/anatomical measures (hyoid excursion, posterior pharyngeal wall thickness) in a series of 17 patients (8 men, 9 women, mean age 54 years)...
March 20, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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
Margareta Gonzalez Lindh, Monica Blom Johansson, Margareta Jennische, Hirsh Koyi
BACKGROUND: COPD is a common problem associated with morbidity and mortality. COPD may also affect the dynamics and coordination of functions such as swallowing. A misdirected swallow may, in turn, result in the bolus entering the airway. A growing body of evidence suggests that a subgroup of people with COPD is prone to oropharyngeal dysphagia. The aim of this study was to evaluate swallowing dysfunction in patients with stable COPD and to determine the relation between signs and symptoms of swallowing dysfunction and lung function (forced expiratory volume in 1 second percent predicted)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
Michael Jungheim, Johanna Kallusky, Martin Ptok
The bolus volume has a modulating effect on the swallowing dynamics, but previously reported adaptations of the pharyngeal function have been inconsistent. Therefore, the aim of this study was to comprehensively evaluate changes of pressure and time parameters in the pharynx and upper esophageal sphincter (UES) in relation to the swallowed bolus volume with high-resolution manometry (HRM). To examine the normal swallowing physiology, particularly thin HRM probes were used, which were expected to influence the investigated structures only minimally...
February 2017: Laryngo- Rhino- Otologie
Jin-Woo Park, Gyu-Jeong Sim, Dong-Chan Yang, Kyoung-Hwan Lee, Ji-Hea Chang, Ki-Yeun Nam, Ho-Jun Lee, Bum-Sun Kwon
OBJECTIVE: To confirm a relationship between the pharyngeal response and bolus volume, and examine whether increasing the fluid bolus volume can improve penetration and aspiration for stroke dysphagic patients. METHODS: Ten stroke patients with a delayed pharyngeal response problem confirmed by a videofluoroscopic swallowing study (VFSS) were enrolled. Each subject completed two swallows each of 2 mL, 5 mL, and 10 mL of barium liquid thinned with water. The pharyngeal delay time (PDT) and penetration-aspiration scale (PAS) were measured and the changes among the different volumes were analyzed...
December 2016: Annals of Rehabilitation Medicine
M A Peyron, A Woda, P Bourdiol, M Hennequin
The paper reviews human mastication, focusing on its age-related changes. The first part describes mastication adaptation in young healthy individuals. Adaptation to obtain a food bolus ready to be swallowed relies on variations in number of cycles, muscle strength and volume of emitted saliva. As a result, the food bolus displays granulometric and rheological properties, the values of which are maintained within the adaptive range of deglutition. The second part concerns healthy ageing. Some mastication parameters are slightly modified by age, but ageing itself does not impair mastication, as the adaptation possibilities remain operant...
December 28, 2016: Journal of Oral Rehabilitation
D H McFarland, B Martin-Harris, A-J Fortin, K Humphries, E Hill, K Armeson
This study was designed to investigate the significance of bolus types and volumes, delivery methods and swallowing instructions on lung volume at swallowing initiation in normal subjects in a single experiment using a multifactorial approach. Our broad range goal was to determine optimal lung volume range associated with swallowing initiation to provide training targets for dysphagic patients with disordered respiratory-swallow coordination. Our hypothesis was that swallows would be initiated within a limited range of quiet breathing lung volumes regardless of bolus volume, consistency or task...
December 2016: Respiratory Physiology & Neurobiology
Charles Cock, Corinne A Jones, Michael J Hammer, Taher I Omari, Timothy M McCulloch
UES opening occurs following cricopharyngeus deactivation and submental muscle contraction causing hyolaryngeal elevation and UES distraction. During impedance manometry, the inverse of impedance (admittance) can be used to measure bolus presence and infer UES opening. We hypothesized that the temporal relationship between UES relaxation, opening and hyolaryngeal elevation would change with increasing bolus volume. Simultaneous intramuscular cricopharyngeal (CP) electromyography (EMG), surface submental EMG (SM-EMG), and high-resolution impedance manometry were recorded in eight (aged 27 ± 7 years, 5 M) healthy volunteers, while swallowing 0...
August 17, 2016: Dysphagia
Hongmei Jiao, Ling Mei, Tarun Sharma, Mark Kern, Patrick Sanvanson, Reza Shaker
Oropharyngeal dysphagia due to upper esophageal sphincter (UES) dysfunction is commonly encountered in the clinical setting. Selective experimental perturbation of various components of the deglutitive apparatus can provide an opportunity to improve our understanding of the swallowing physiology and pathophysiology. The aim is to characterize the pharyngeal and UES deglutitive pressure phenomena in an experimentally induced restriction of UES opening in humans. We studied 14 volunteers without any dysphagic symptoms (7 men, 66 ± 11 yr) but with various supraesophageal reflux symptoms...
July 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
S H Doeltgen, T I Omari, J Savilampi
Exposure to remifentanil contributes to an increased risk of pulmonary aspiration, likely through reduced pharyngeal contractile vigor and diminished bolus propulsion during swallowing. We employed a novel high-resolution pressure-flow analysis to quantify the biomechanical changes across the upper esophageal sphincter (UES). Eleven healthy young (23.3 ± 3.1 yr old) participants (7 men and 4 women) received remifentanil via intravenous target-controlled infusion with an effect-site concentration of 3 ng/ml...
June 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
Nazan Simsek Erdem, Kamil Karaali, Ali Ünal, Ferah Kızılay, Candan Öğüş, Hilmi Uysal
The aim of the study is to determine the association between respiratory swallow patterns in amyotrophic lateral sclerosis (ALS) patients. Furthermore, it aims to clarify the role of the dysphagia limit in defining the relationship between swallowing disorders and respiratory disorders. Functional rating scales were used to describe swallowing and respiratory function. Swallowing was observed using the dysphagia limit. Dysphagia limit is the volume at which a second or more swallows are required to swallow the whole bolus...
December 2016: Acta Neurologica Belgica
Teng Zhang, Michal Szczesniak, Julia Maclean, Paul Bertrand, Peter I Wu, Taher Omari, Ian J Cook
OBJECTIVE: Postlaryngectomy, pharyngeal weakness, and pharyngoesophageal junction (PEJ) restriction are the candidate mechanisms of dysphagia. The aims were, in laryngectomees, whether (1) hypopharyngeal propulsion is reduced and/or PEJ resistance is increased, (2) dilatation improves dysphagia, and (3) whether symptomatic improvement correlates with reduced PEJ resistance. DESIGN: Multidisciplinary cross-sectional study. SETTING: Tertiary academic hospital...
August 2016: Otolaryngology—Head and Neck Surgery
Sophie A C Kraaijenga, Lisette van der Molen, Wilma D Heemsbergen, Gawein B Remmerswaal, Frans J M Hilgers, Michiel W M van den Brekel
Reduced hyoid displacement is thought to contribute to aspiration and pharyngeal residues in head and neck cancer (HNC) patients with dysphagia. To further study hyoid elevation and anterior excursion in HNC patients, this study reports on temporal/kinematic measures of hyoid displacement, with the additional goal to investigate correlations with clinical swallowing impairment. A single-blind analysis of data collected as part of a larger prospective study was performed at three time points before and after chemoradiotherapy...
February 2017: European Archives of Oto-rhino-laryngology
Stevie Marvin, Sara Gustafson, Susan Thibeault
The objective of this investigation was to determine if there were differences in identifying airway invasion (penetration or aspiration) during fiberoptic endoscopic evaluations of swallowing (FEES) for green-dyed versus non-dyed liquids. Forty adult inpatients in an acute care hospital underwent FEES, with both green-dyed liquids and naturally white liquids. Three speech-language pathologists rated aspiration and penetration for trials of nectar-thick milk and thin milk, both with and without green food dye...
August 2016: Dysphagia
Balaji Rangarathnam, Gary H McCullough
A clinical swallowing examination (CSE) is generally believed to be inadequate for making judgments regarding swallowing physiology compared to objective assessments. A large volume of studies has heavily focused on identifying aspiration using a CSE and research addressing physiologic information gathered from a CSE is sparse. The purpose of this study was to examine the utility of the CSE for assessing physiology compared to videofluoroscopic swallowing studies (VFSS). Data were derived from a prior investigation of sixty adult patients post-stroke tested with CSE and VFSS...
August 2016: Dysphagia
Molly Manning, Vincent Casey, Richard Conway, Jean Saunders, Alison Perry
OroPress is a new, low profile, portable, wireless tool that enables stable measurement of tongue pressure during isometric ('pushing') tasks and, more importantly, during swallowing. Using this tool, a pressure-time product, the OroPress Absolute (OPA) parameter, has been developed as a representative measure of lingual effort during swallowing. In a sample of 57 adults aged 20-80+ years, of both sexes and without dysphagia, tongue-palate contact pressures generated while swallowing 5 ml, 10 ml of water and 5 ml custard, were recorded using OroPress...
June 2016: Dysphagia
Dylan Lippert, Matthew R Hoffman, Christopher J Britt, Corinne A Jones, Jodi Hernandez, Michelle R Ciucci, Timothy M McCulloch
INTRODUCTION: Understanding of swallowing pressures after total laryngectomy (TL) and what constitutes a "functional" swallow are limited. Mobile structures are altered or removed after TL, with consequent effects on pressure profiles. High-resolution manometry (HRM) can characterize these pressures. METHODS: Six TL subjects without dysphagia and 6 controls underwent pharyngeal HRM. Timing and pressure variables for the velopharynx, mesopharynx, and upper esophageal sphincter (UES) were compared...
July 2016: Annals of Otology, Rhinology, and Laryngology
S Jourdren, M Panouillé, A Saint-Eve, I Déléris, D Forest, P Lejeune, I Souchon
Oral processing during bread consumption is a key process related to the dynamics of texture perceptions, sensory stimuli release and starch digestion. The aim of this study was to determine the respective contribution of bread properties (composition and structure of crumb and crust) and of the oral physiology of subjects to the breakdown pathways in the mouth. The properties of the in vivo bread bolus obtained from eight healthy subjects were studied at three key points in time during their oral processing...
March 2016: Food & Function
Molly A Knigge, Susan Thibeault
Tongue base pressures have been thought to provide primary bolus clearance through the pharynx during swallowing. The relationship between bolus driving pressures and residue remaining in the valleculae after the swallow has not been defined. Thirty-seven dysphagic patients who were evaluated with both videofluoroscopy (VFSS) and high-resolution manometry (HRM) were identified within the University of Wisconsin Voice and Swallowing Outcomes database. Patients were categorized according to binary ratings of presence or absence of vallecular stasis as well as incomplete or complete tongue retraction on VFSS...
June 2016: Dysphagia
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