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Swallowing physiology

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https://www.readbyqxmd.com/read/28912088/sip-and-spit-or-sip-and-swallow-choice-of-method-differentially-alters-taste-intensity-estimates-across-stimuli
#1
Cordelia A Running, John E Hayes
While the myth of the tongue map has been consistently and repeatedly debunked in controlled studies, evidence for regional differences in suprathreshold intensity has been noted by multiple research groups. Given differences in physiology between the anterior and posterior tongue (fungiform versus foliate and circumvallate papillae) and differences in total area stimulated (anterior only versus whole tongue, pharynx, and epiglottis), small methodological changes (sip and spit versus sip and swallow) have the potential to substantially influence data...
September 11, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28894942/first-steps-towards-development-of-an-instrument-for-the-reproducible-quantification-of-oropharyngeal-swallow-physiology-in-bottle-fed-children
#2
Maureen A Lefton-Greif, Katlyn Elizabeth McGrattan, Kathryn A Carson, Jeanne M Pinto, Jennifer M Wright, Bonnie Martin-Harris
The incidence of feeding/swallowing impairments (deglutition disorders) in young children is rising and poses serious acute and long-term health consequences. Accurate detection and prompt intervention can lessen the impact of dysphagia-induced sequelae. Videofluoroscopic Swallow Studies (VFSSs) are used to make critical decisions for medically fragile children despite procedural variability and the lack of agreed upon measures for interpreting and reporting results. This investigation represents the first steps in the development of a novel tool for the quantification of oropharyngeal swallow physiology from full-length VFSS examinations in bottle-fed children...
September 11, 2017: Dysphagia
https://www.readbyqxmd.com/read/28857171/characterization-of-swallow-modulation-in-response-to-bolus-volume-in-healthy-subjects-accounting-for-catheter-diameter
#3
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/28836005/grading-dysphagia-as-a-toxicity-of-head-and-neck-cancer-differences-in-severity-classification-based-on-mbs-digest-and-clinical-ctcae-grades
#4
Ryan P Goepfert, Jan S Lewin, Martha P Barrow, Carla L Warneke, Clifton D Fuller, Stephen Y Lai, Randal S Weber, Katherine A Hutcheson
Clinician-reported toxicity grading through common terminology criteria for adverse events (CTCAE) stages dysphagia based on symptoms, diet, and tube dependence. The new dynamic imaging grade of swallowing toxicity (DIGEST) tool offers a similarly scaled five-point ordinal summary grade of pharyngeal swallowing as determined through results of a modified barium swallow (MBS) study. This study aims to inform clinicians on the similarities and differences between dysphagia severity according to clinical CTCAE and MBS-derived DIGEST grading...
August 23, 2017: Dysphagia
https://www.readbyqxmd.com/read/28831570/differential-response-pattern-of-oropharyngeal-pressure-by-bolus-and-dry-swallows
#5
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/28794695/water-filtered-infrared-a-wira-overcomes-swallowing-disorders-and-hypersalivation-a-case-report
#6
Gerd Hoffmann
Case description: A patient with a Barrett oesophageal carcinoma and a resection of the oesophagus with gastric pull-up developed swallowing disorders 6 years and 2 months after the operation. Within 1 year and 7 months two recurrences of the tumor at the anastomosis were found and treated with combined chemoradiotherapy or chemotherapy respectively. 7 years and 9 months after the operation local tumor masses and destruction were present with no ability to orally drink or eat (full feeding by jejunal PEG tube): quality of life was poor, as saliva and mucus were very viscous (pulling filaments) and could not be swallowed and had to be spat out throughout the day and night resulting in short periods of sleep (awaking from the necessity to spit out)...
2017: German Medical Science: GMS E-journal
https://www.readbyqxmd.com/read/28766752/unlocking-opportunities-in-food-design-for-infants-children-and-the-elderly-understanding-milestones-in-chewing-and-swallowing-across-the-lifespan-for-new-innovations
#7
REVIEW
Julie A Y Cichero
Intake of a variety of foods increases the likelihood of good general health. From as early as life in utero, humans are exposed to flavor. Further flavor imprinting occurs via breast milk, increasing the likelihood of acceptance of a variety flavors when solids are introduced. While first foods need to be smooth and runny, experience managing soft lumps is required for rudimentary development of chewing skills. Texture experiences are critical to providing building blocks for food acceptance and gradual increase in the range of food textures eaten...
August 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28758080/effects-of-capping-of-the-tracheostomy-tube-in-stroke-patients-with-dysphagia
#8
Yong Kyun Kim, Sang-Heon Lee, Jang-Won Lee
OBJECTIVE: To investigate the impact of tracheostomy tube capping on swallowing physiology in stroke patients with dysphagia via videofluoroscopic swallowing study (VFSS). METHODS: This study was conducted as a prospective study that involved 30 stroke patients. Then, 4 mL semisolid swallowing was conducted with capping of the tracheostomy tube or without capping of the tracheostomy tube. The following five parameters were measured: laryngeal elevation, pharyngeal transit time, post-swallow pharyngeal remnant, upper esophageal sphincter width (UES), and penetration-aspiration scale (PAS) score...
June 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28740669/impact-of-thoracic-surgery-on-esophageal-motor-function-evaluation-by-high-resolution-manometry
#9
Anja Wäsche, Arne Kandulski, Peter Malfertheiner, Sandra Riedel, Patrick Zardo, Thomas Hachenberg, Jens Schreiber
BACKGROUND: Alteration of esophageal function is a potential risk factor for postoperative complications in thoracic surgery. This prospective study investigates esophageal motility and function during and after thoracic procedures via high resolution manometry (HRM) and impedance technology with spatiotemporal representation of pressure data. METHODS: Twelve consecutive patients eligible for elective thoracic surgery underwent preoperative and postoperative (48 hours and 7 days) esophageal HRM...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28740316/impact-of-oral-processing-on-texture-attributes-and-taste-perception
#10
REVIEW
Dengyong Liu, Yajun Deng, Lei Sha, Md Abul Hashem, Shengmei Gai
Mastication is the first step of food digestion, where foods are broken down and simultaneously impregnated by saliva resulting in the formation of semi-fluids known as food boluses. This review focuses on the impact of oral processing on texture attributes and taste perception. The article describes the oral actions in which texture characteristic are measured for the critical conditions that trigger swallowing. Taste perception also plays a key role in oral processing and oral sensations. There are still challenges in terms of determining different oral physiological characteristics...
July 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28719783/making-sense-of-studies-that-claim-benefits-of-frenotomy-in-the-absence-of-classic-tongue-tie
#11
Pamela Douglas
By performing an in-depth analysis of one high profile example, this article aims to help breastfeeding support professionals understand the methodological flaws that characterize recent studies claiming to show the efficacy of frenotomy for the diagnoses of posterior tongue-tie and upper lip-tie. The example study does not address definitional confusion or control for the effects of the passage of time. It does not consider the effects of caring attention, validation, and lactation consultant support. It also does not consider the extensive research over the past three decades that has established that reflux in the first 6 months of life is benign, even though increased reflux frequency may correlate with unsettled infant behavior...
August 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28700565/nasal-continuous-positive-airway-pressure-influences-bottle-feeding-in-preterm-lambs
#12
Nathalie Samson, Audrey Michaud, Rahmeh Othman, Charlène Nadeau, Stéphanie Nault, Danny Cantin, Michaël Sage, Céline Catelin, Jean-Paul Praud
BACKGROUND: In preterm infants, the time from initiation to full oral feeding can take weeks, which represents a very worrisome problem in neonatal medicine. Although current knowledge suggests that oral feeding should be introduced early, this is often delayed due to the need for prolonged nasal continuous positive airway pressure (nCPAP). Indeed, most caregivers fear that nCPAP could disrupt sucking-swallowing-breathing coordination and induce tracheal aspiration. The goal of the present study was to assess the impact of nCPAP delivered by the Infant Flow System on the physiology of sucking-swallowing-breathing coordination during bottle-feeding in preterm lambs over 24 h...
July 12, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28635131/characterization-of-pharyngeal-peristaltic-pressure-variability-during-volitional-swallowing-in-healthy-individuals
#13
G Balasubramanian, T Sharma, M Kern, L Mei, P Sanvanson, R Shaker
BACKGROUND: Recent technological advances incorporated in high resolution manometry have justifiably heightened interest in manometric evaluation of the pharynx. Despite this interest, from both physiologic and clinical perspective there remain a number of unanswered questions regarding the magnitude of variability of pharyngeal pressure phenomena. Therefore, the aim of the present study was to characterize in healthy individuals the inter-subject and recording-site specific variability of pharyngeal peristaltic pressure phenomena...
June 20, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28614846/identification-of-swallowing-tasks-from-a-modified-barium-swallow-study-that-optimize-the-detection-of-physiological-impairment
#14
R Jordan Hazelwood, Kent E Armeson, Elizabeth G Hill, Heather Shaw Bonilha, Bonnie Martin-Harris
Purpose: The purpose of this study was to identify which swallowing task(s) yielded the worst performance during a standardized modified barium swallow study (MBSS) in order to optimize the detection of swallowing impairment. Method: This secondary data analysis of adult MBSSs estimated the probability of each swallowing task yielding the derived Modified Barium Swallow Impairment Profile (MBSImP™©; Martin-Harris et al., 2008) Overall Impression (OI; worst) scores using generalized estimating equations...
June 15, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28611728/are-movement-artifacts-in-magnetic-resonance-imaging-a-real-problem-a-narrative-review
#15
REVIEW
Inger Havsteen, Anders Ohlhues, Kristoffer H Madsen, Janus Damm Nybing, Hanne Christensen, Anders Christensen
Movement artifacts compromise image quality and may interfere with interpretation, especially in magnetic resonance imaging (MRI) applications with low signal-to-noise ratio such as functional MRI or diffusion tensor imaging, and when imaging small lesions. High image resolution has high sensitivity to motion artifacts and often prolongs scan time that again aggravates movement artifacts. During the scan fast imaging techniques and sequences, optimal receiver coils, careful patient positioning, and instruction may minimize movement artifacts...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28547793/the-anatomy-and-physiology-of-normal-and-abnormal-swallowing-in-oropharyngeal-dysphagia
#16
REVIEW
A Sasegbon, S Hamdy
BACKGROUND: Eating and drinking are enjoyable activities that positively impact on an individual's quality of life. The ability to swallow food and fluid is integral to the process of eating. Swallowing occupies a dual role being both part of the enjoyment of eating and being a critically important utilitarian activity to enable adequate nutrition and hydration. Any impairment to the process of swallowing can negatively affect a person's perception of their quality of life. The process of swallowing is highly complex and involves muscles in the mouth, pharynx, larynx, and esophagus...
May 25, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28537378/self-healing-highly-sensitive-electronic-sensors-enabled-by-metal-ligand-coordination-and-hierarchical-structure-design
#17
Yangyang Han, Xiaodong Wu, Xinxing Zhang, Canhui Lu
Electronic sensors capable of capturing mechanical deformation are highly desirable for the next generation of artificial intelligence products. However, it remains a challenge to prepare self-healing, highly sensitive, and cost-efficient sensors for both tiny and large human motion monitoring. Here, a new kind of self-healing, sensitive, and versatile strain sensors has been developed by combining metal-ligand chemistry with hierarchical structure design. Specifically, a self-healing and nanostructured conductive layer is deposited onto a self-healing elastomer substrate cross-linked by metal-ligand coordinate bonds, forming a hierarchically structured sensor...
June 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28534064/reflections-on-clinical-and-statistical-use-of-the-penetration-aspiration-scale
#18
REVIEW
Catriona M Steele, Karen Grace-Martin
The 8-point Penetration-Aspiration Scale (PAS) was introduced to the field of dysphagia in 1996 and has become the standard method used by both clinicians and researchers to describe and measure the severity of airway invasion during swallowing. In this article, we review the properties of the scale and explore what has been learned over 20 years of use regarding the construct validity, ordinality, intervality, score distribution, and sensitivity of the PAS to change. We propose that a categorical revision of the PAS into four levels of increasing physiological severity would be appropriate...
May 22, 2017: Dysphagia
https://www.readbyqxmd.com/read/28529824/to-cough-or-not-to-cough-examining-the-potential-utility-of-cough-testing-in-the-clinical-evaluation-of-swallowing
#19
Stephanie A Watts, Lauren Tabor, Emily K Plowman
PURPOSE: The clinical swallowing evaluation (CSE) represents a critical component of a comprehensive assessment of deglutition. Although universally utilized across clinical settings, the CSE demonstrates limitations in its ability to accurately identify all individuals with dysphagia. There exists a need to improve assessment and screening techniques to improve health outcomes, treatment recommendations and ultimately mortality in individuals at risk for dysphagia. The following narrative review provides a summary of currently used validated CSE's and examines the potential role of cough testing and screening in the CSE...
December 2016: Current Physical Medicine and Rehabilitation Reports
https://www.readbyqxmd.com/read/28489175/a-pictorial-presentation-of-esophageal-high-resolution-manometry-current-parameters
#20
Fernanda M Lafraia, Fernando A M Herbella, Julia R Kalluf, Marco G Patti
Introduction: High resolution manometry is the current technology used to the study of esophageal motility and is replacing conventional manometry in important centers for esophageal motility with parameters used on esophageal motility, following the Chicago Classification. This classification unifies high resolution manometry interpretation and classifies esophageal disorders. Objective: This review shows, in a pictorial presentation, the new parameters established by the Chicago Classification, version 3...
January 2017: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
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