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https://www.readbyqxmd.com/read/28644539/effortful-swallow-with-resistive-electrical-stimulation-training-improves-pharyngeal-constriction-in-patients-post-stroke-with-dysphagia
#1
Hyojun Kim, Jin-Woo Park, Kiyeon Nam
This study aimed to evaluate the effect of effortful swallow combined with surface electrical stimulation as a form of resistance training on pharyngeal constriction function in post-stroke patients with dysphagia. Nineteen patients post-stroke with dysphagia received 20 minutes effortful swallow training with resistive electrical stimulation for 5 days per week for 4 weeks. Electrical stimulation was applied on the infrahyoid area as resistance against hyoid elevation. Stimulation intensity was adjusted daily up to the maximum tolerable level of the participant...
June 23, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28637976/coordinated-control-of-the-tongue-during-suckling-like-activity-and-respiration
#2
Tomio Inoue, Kiyomi Nakayama, Yoshiaki Ihara, Satoshi Tachikawa, Shiro Nakamura, Ayako Mochizuki, Koji Takahashi, Takehiko Iijima
The tongue can move freely and is important in oral motor functions. Tongue movement must be coordinated with movement of the hyoid, mandible, and pharyngeal wall, to which it is attached. Our previous study using isolated brainstem-spinal cord preparations showed that application of N-methyl-D-aspartate induces rhythmic activity in the hypoglossal nerve that is coincident with rhythmic activity in the ipsilateral trigeminal motor nerve. Partial or complete midline transection of the preparation only abolishes activity in the trigeminal motor nerve; therefore, the neuronal network contributing to coordinated activity of the jaw/tongue muscles is located on both sides of the preparation and sends motor commands to contralateral trigeminal motoneurons...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28619729/characterization-and-mechanisms-of-the-supragastric-belch-in-the-cat
#3
Ivan M Lang, Bidyut K Medda, Reza Shaker
A response, i.e., the supragastric belch (SGB), in which a belch occurs without gastric involvement has been characterized in humans. The aims of this study were to determine whether animals have an SGB and if so to determine its mechanisms. Studies were conducted in decerebrate cats (N=30) with EMG electrodes on hyoid, pharyngeal, esophageal, and diaphragm muscles. The effects of distending different regions of the esophagus in different manners using a balloon were quantified to determine the most appropriate stimulus for activating the cat SGB...
June 15, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28619578/analysis-of-pressure-distribution-during-direct-microlaryngoscopy
#4
Busheng Tong, Rui Fang
OBJECTIVE: This study aimed to investigate the pressure distribution during direct microlaryngoscopy and its relation with the positioning of the patient. STUDY DESIGN: This is a prospective study in cadavers. MATERIALS AND METHODS: The pressure distribution during direct microlaryngoscopy was investigated in five adult fresh cadavers by using matrix-based piezoresistive thin-film sensors. The pressure among three head and neck positions (extension-extension, neutral, and flexion-extension) was studied...
June 12, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28555289/association-of-high-carotid-bifurcation-and-thyrolinguofacial-trunk-a-rare-variation
#5
Suresh Narayanan, Senthil Murugan
Variations in the origins and the branching pattern of the carotid system of arteries are not uncommon. Here we report a rare case of higher bifurcation of the common carotid artery (CCA) (at the level of the greater cornu of the hyoid bone), thyrolinguofacial trunk (TLFT) originating from the CCA, superior laryngeal artery (SLA) arising from the external carotid artery (ECA) on the left side, and linguofacial trunk arising from the ECA on the right side. In the present case, the CCA and carotid bifurcation may have arisen from the second aortic arch...
May 29, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/28550485/change-in-excitability-of-cortical-projection-after-modified-catheter-balloon-dilatation-therapy-in-brainstem-stroke-patients-with-dysphagia-a-prospective-controlled-study
#6
Xiaomei Wei, Fan Yu, Meng Dai, Chunqing Xie, Guifang Wan, Yujue Wang, Zulin Dou
Although the modified balloon dilatation therapy has been demonstrated to improve pharyngeal swallowing function post stroke, the underlying neural mechanisms of improvement are unknown. Our aims are (1) to investigate the effect of modified balloon dilatation on the excitability of corticobulbar projections to the submental muscle in dysphagic patients with brainstem stroke and (2) the relation between changes in excitability and pharyngeal kinematic modifications. Thirty patients with upper esophageal sphincter (UES) dysfunction due to unilateral brainstem stroke were recruited into two groups...
May 26, 2017: Dysphagia
https://www.readbyqxmd.com/read/28547886/the-suction-mechanism-of-the-pipid-frog-pipa-pipa-linnaeus-1758
#7
David Cundall, Edward Fernandez, Frances Irish
Most suction-feeding, aquatic vertebrates create suction by rapidly enlarging the oral cavity and pharynx. Forceful enlargement of the pharynx is powered by longitudinal muscles that retract skeletal elements of the hyoid, more caudal branchial arches, and, in many fish, the pectoral girdle. This arrangement was thought to characterize all suction-feeding vertebrates. However, it does not exist in the permanently aquatic, tongueless Pipa pipa, an Amazonian frog that can catch fish. Correlating high-speed (250 and 500 fps) video records with anatomical analysis and functional tests shows that fundamental features of tetrapod body design are altered to allow P...
May 25, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28543631/a-three-dimensional-placoderm-stem-group-gnathostome-pharyngeal-skeleton-and-its-implications-for-primitive-gnathostome-pharyngeal-architecture
#8
Martin D Brazeau, Matt Friedman, Anna Jerve, Robert C Atwood
The pharyngeal skeleton is a key vertebrate anatomical system in debates on the origin of jaws and gnathostome (jawed vertebrate) feeding. Furthermore, it offers considerable potential as a source of phylogenetic data. Well-preserved examples of pharyngeal skeletons from stem-group gnathostomes remain poorly known. Here, we describe an articulated, nearly complete pharyngeal skeleton in an Early Devonian placoderm fish, Paraplesiobatis heinrichsi Broili, from Hunsr├╝ck Slate of Germany. Using synchrotron light tomography, we resolve and reconstruct the three-dimensional gill arch architecture of Paraplesiobatis and compare it with other gnathostomes...
May 23, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28535072/hyoid-arch-displacement-with-hypoglossal-nerve-stimulation
#9
Tarek ElShebiny, Divya Venkat, Kingman Strohl, Mark G Hans, Aurelio Alonso, Juan Martin Palomo
No abstract text is available yet for this article.
May 23, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28529682/segmentations-of-the-cartilaginous-skeletons-of-chondrichthyan-fishes-by-the-use-of-state-of-the-art-computed-tomography
#10
Andrew D McQuiston, Callie Crawford, U Joseph Schoepf, Akos Varga-Szemes, Christian Canstein, Matthias Renker, Carlo N De Cecco, Stefan Baumann, Gavin J P Naylor
AIM: To apply dual-source multidetector computed tomography (DSCT) scanning technology in conjunction with computationally assisted segmentation in order to explore and document skeletal variation that has occurred over the course of evolution. METHODS: We examined 4 divergent species of elasmobranchs with high-resolution 3(rd) generation DSCT. The formalin prepared species examined were: Aptychotrema vincentiana, Mitsukurina owstoni, Negaprion brevirostris and Dactylobatus armatus...
April 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28528492/sagittal-plane-kinematics-of-the-jaw-and-hyolingual-apparatus-during-swallowing-in-macaca-mulatta
#11
Yuki Nakamura, Jose Iriarte-Diaz, Fritzie Arce-McShane, Courtney P Orsbon, Kevin A Brown, McKenna Eastment, Limor Avivi-Arber, Barry J Sessle, Makoto Inoue, Nicholas G Hatsopoulos, Callum F Ross, Kazutaka Takahashi
Studies of mechanisms of feeding behavior are important in a society where aging- and disease-related feeding disorders are increasingly prevalent. It is important to evaluate the clinical relevance of animal models of the disease and the control. Our present study quantifies macaque hyolingual and jaw kinematics around swallowing cycles to determine the extent to which macaque swallowing resembles that of humans. One female and one male adult Macaca mulatta were trained to feed in a primate chair. Videofluoroscopy was used to record kinematics in a sagittal view during natural feeding on solid food, and the kinematics of the hyoid bone, thyroid cartilage, mandibular jaw, and anterior-, middle-, and posterior-tongue...
May 20, 2017: Dysphagia
https://www.readbyqxmd.com/read/28514499/surface-anatomy-of-major-anatomical-landmarks-of-the-neck-in-an-adult-population-a-ct-evaluation-of-vertebral-level
#12
Masroor Badshah, Roger Soames, Muhammad Ibrahim, Muhammad Jaffar Khan, Adnan Khan
To compare the projectional surface anatomy of healthy individuals in an adult population with those with a thyroid mass, using computed tomography (CT). Sixteen slice CT images of 101 individuals were analyzed using a 32-bit Radiant DICOM viewer to establish the relationships among major anatomical landmarks in the neck and their vertebral levels. The structures investigated included: hard palate (HP), hyoid bone (HB) including body and lesser horns, soft palate (SP), thyroid gland (TG) (both superior and inferior poles), thyroid gland anteroposterior (APD) and superoinferior (SID) diameters, thyroid isthmus (TI) superoinferior dimension, epiglottis, vertebral arteries (right and left), and both right and left parotid glands (superior and inferior extents)...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28500875/upper-airway-changes-after-mandibular-setback-and-or-advancement-genioplasty-in-obese-patients
#13
Wen Du, Dongming He, Yiyao Wang, Hanghang Liu, Chuhang Liao, Wei Fei, En Luo
PURPOSE: Orthognathic surgeries, such as bilateral sagittal split ramus osteotomy (BSSO) and genioplasty, can influence the pharyngeal airway space (PAS) and this has been supported by previous studies. The purpose of this study was to assess changes of the PAS in patients with a high body mass index (BMI) likely to have narrow airways before and after setback BSSO with or without advancement genioplasty surgery by 3-dimensional computed tomography. MATERIALS AND METHODS: Thirty-five adults with a BMI of at least 24...
April 19, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28498070/extracranial-internal-carotid-artery-dissection-caused-by-compression-from-a-giant-osteophyte-due-to-atlantoaxial-osteoarthritis-case-report
#14
Taichi Ikedo, Kazuhito Nakamura, Noritaka Sano, Manabu Nagata, Yumiko Okada, Taichiro Kawakami, Takaho Murata
Deformed osseous structures have been reported as rare causes of extracranial internal carotid artery (ICA) dissection, including the styloid process and the hyoid bone. Here, the authors describe the first known case of symptomatic ICA dissection caused by a giant osteophyte due to atlantoaxial osteoarthritis. The left ICA was fixed at the skull base and at the ICA portion compressed by the osteophyte, and it was highly stretched and injured between the two portions during neck rotation. The patient was successfully treated with ligation of the affected ICA following balloon test occlusion...
May 12, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28483230/changes-in-airway-dimensions-following-functional-appliances-in-growing-patients-with-skeletal-class-ii-malocclusion-a-systematic-review-and-meta-analysis
#15
REVIEW
MingLi Xiang, Bo Hu, Yang Liu, Jicheng Sun, Jinlin Song
OBJECTIVES: The purpose of the study was to evaluate the treatment effects of functional appliances (FAs) on upper airway dimensions in growing Class II patients with mandibular retrognathism. METHODS: Five databases and the references of identified articles were electronically searched for relevant studies that met our eligibility criteria. The quality of the included studies was assessed using the Newcastle-Ottawa Scale. The effects of FAs on airway dimensions were combined by meta-analysis using the RevMan and STATA software...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28480810/traumatic-laryngotracheal-stenosis-treated-by-hyoid-sternohyoid-osseomuscular-flap-combined-with-xenogenic-acellular-dermal-matrix-a-case-report-and-literature-review
#16
Hang Yang, Zhe Chen, Shui-Hong Zhou, Qin-Yin Wang, Li-Xia Weng, Fang Wang, Ting-Ting Wu, Min-Li Zhou, Yang-Yang Bao
Objective The treatment of laryngotracheal stenosis is a major therapeutic challenge. Various treatments include observation, medical management, and surgical management. The most effective surgical management is resection and reconstruction. To the authors' knowledge, no reports have described the use of xenogenic acellular dermal matrix (ADM) for laryngotracheal stenosis. Methods A 27-year-old man presented with hemoptysis of the neck due to a traffic accident. Emergency orotracheal intubation was performed...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28480090/atypical-pharyngeal-pouch-arising-bilaterally-between-the-hyoid-bone-and-thyroid-cartilage
#17
Lawrence J Oh, Lyndon Chan, David Veivers
Introduction. Pharyngoesophageal diverticuli are a common cause of dysphagia; they are associated with various morbidities and a decreased quality of life. There are several different types of the diverticuli, and they are divided based on the anatomical location of origin relative to the cricopharyngeal muscle; these include Zenker's, Killian-Jamieson's, and Laimer's diverticula. The authors present a unique case of pharyngoesophageal diverticulum that has not been previously described. Case Presentation. A 65-year-old male presented with a 12-month history of dysphagia and odynophagia for solids...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28468149/study-on-the-short-time-remolding-of-upper-airway-after-uvulopalatopharyngoplasty
#18
Kan Yao, Meng Wang, Wenwen Yu, Xiaofeng Lu
OBJECTIVE: To verify the short-time remolding of upper airway in patients diagnosed with obstructive sleep disordered breathing after Uvulopalatopharyngoplasty (UPPP). METHODS: Twenty-one male adult patients aged 27 to 52 years followed up ranged from preoperation to 6 months after the operation. Lateral cephalometric radiographs (conventional and when pronouncing "i") were obtained 2 weeks preoperatively, 3 days postoperatively, and 1, 2, 3, 6 months after the surgery...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28464688/variability-in-muscle-activation-of-simple-speech-motions-a-biomechanical-modeling-approach
#19
Negar M Harandi, Jonghye Woo, Maureen Stone, Rafeef Abugharbieh, Sidney Fels
Biomechanical models of the oropharynx facilitate the study of speech function by providing information that cannot be directly derived from imaging data, such as internal muscle forces and muscle activation patterns. Such models, when constructed and simulated based on anatomy and motion captured from individual speakers, enable the exploration of inter-subject variability of speech biomechanics. These models also allow one to answer questions, such as whether speakers produce similar sounds using essentially the same motor patterns with subtle differences, or vastly different motor equivalent patterns...
April 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28458805/the-tongue-mandible-hyoid-system
#20
Giuseppe Messina
The craniocervical-mandibular system works in harmony and allows different functional tasks as the postural control of the cervical region. This system is formed by the temporomandibular joint, the masticatory muscles and ligaments connecting the temporomandibular joint and the cervical region. It has been seen to affect human posture, and many disorders of the temporomandibular joints may affect this functional arrangement. Notwithstanding this system considered as a functional arrangement, may offer various clinical explanations, it does not hold anatomical connections with the posterior region of the cranium, thus it should not be refered to as a craniocervical arrangement...
February 24, 2017: European Journal of Translational Myology
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