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https://www.readbyqxmd.com/read/29343026/-applied-research-of-quadri-low-combined-with-automatic-tube-current-modulation-and-iterative-model-reconstruction-technology-in-head-and-neck-ct-angiography
#1
W Cai, C H Hu, X M Wang, S Hu, J Bao, J P Gong, G H Fan, W Zhang, D Shi, M H Qian
Objective: To investigate the feasibility of low tube voltage, low contrast medium concentration, injection rate and volume (quadri-low) combined with automatic tube current modulation (ATCM) and iterative model reconstruction (IMR) technology in head and neck CT angiography (CTA). Methods: A total of 70 patients whose body mass index (BMI)<25 kg/m(2) underwent head and neck CTA and digital subtraction angiography (DSA) from January to July 2017 were enrolled in this prospective study. According to random number table, patients were divided into two groups: group A (n=35) was scanned according to the protocol of 120 kV, 150 mAs, 50 ml and 5 ml/s iopromide (370 mg/ml) and filtered back projection (FBP) reconstruction; group B (n=35) was scanned with 80 kV, ATCM with mean tube current of 100 mAs, 30 ml and 3 ml/s iohexol (300 mg/ml) and IMR; the other parameters kept consistent between the two groups...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29330951/dynamic-musculoskeletal-functional-morphology-integrating-dicect-and-xromm
#2
Courtney P Orsbon, Nicholas J Gidmark, Callum F Ross
The tradeoff between force and velocity in skeletal muscle is a fundamental constraint on vertebrate musculoskeletal design (form:function relationships). Understanding how and why different lineages address this biomechanical problem is an important goal of vertebrate musculoskeletal functional morphology. Our ability to answer questions about the different solutions to this tradeoff has been significantly improved by recent advances in techniques for quantifying musculoskeletal morphology and movement. Herein, we have three objectives: (1) review the morphological and physiological parameters that affect muscle function and how these parameters interact; (2) discuss the necessity of integrating morphological and physiological lines of evidence to understand muscle function and the new, high resolution imaging technologies that do so; and (3) present a method that integrates high spatiotemporal resolution motion capture (XROMM, including its corollary fluoromicrometry), high resolution soft tissue imaging (diceCT), and electromyography to study musculoskeletal dynamics in vivo...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29327733/orthopaedic-treatment-effects-of-functional-therapy-on-the-sagittal-pharyngeal-dimensions-in-subjects-with-sleep-disordered-breathing-and-class-ii-malocclusion
#3
C Pavoni, E Cretella Lombardo, R Lione, P Bollero, F Ottaviani, P Cozza
The purpose of this cephalometric study was to evaluate the craniofacial changes induced by functional treatment of mandibular advancement with special regard to pharyngeal sagittal airway dimensions, tongue and hyoid bone position in subjects with sleep-disordered breathing (SDB) and dentoskeletal Class II malocclusions compared with an untreated Class II control group. 51 subjects (24 female, 27 male; mean age 9.9 ± 1.3 years) with Class II malocclusion and SDB consecutively treated with a functional appliance (Modify Monobloc, MM) were compared with a control group of 31 subjects (15 males, 16 females; mean age 10...
December 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/29327661/evaluations-of-the-tongue-and-hyoid-bone-positions-and-pharyngeal-airway-dimensions-after-maxillary-protraction-treatment
#4
Dong-Min Hwang, Ji-Yeon Lee, Yoon Jeong Choi, Chung-Ju Hwang
Objective To assess changes in the tongue and hyoid bone positions and airway dimensions after maxillary protraction using lateral cephalograms. Methods Lateral cephalograms were obtained before (C0) and after (C1) an observation period for untreated children with skeletal Class I malocclusion and before (T0), immediately after (T1), and one year after (T2) maxillary protraction in children with skeletal Class III malocclusion. Cephalometric measurements were compared between the time points in both patient groups...
January 12, 2018: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29298937/an-early-chondrichthyan-and-the-evolutionary-assembly-of-a-shark-body-plan
#5
Michael I Coates, John A Finarelli, Ivan J Sansom, Plamen S Andreev, Katharine E Criswell, Kristen Tietjen, Mark L Rivers, Patrick J La Riviere
Although relationships among the major groups of living gnathostomes are well established, the relatedness of early jawed vertebrates to modern clades is intensely debated. Here, we provide a new description of Gladbachus, a Middle Devonian (Givetian approx. 385-million-year-old) stem chondrichthyan from Germany, and one of the very few early chondrichthyans in which substantial portions of the endoskeleton are preserved. Tomographic and histological techniques reveal new details of the gill skeleton, hyoid arch and jaws, neurocranium, cartilage, scales and teeth...
January 10, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29285333/obstructive-site-localization-in-patients-with-obstructive-sleep-apnea-syndrome-a-comparison-between-otolaryngologic-data-and-cephalometric-values
#6
D DI Venere, M Corsalini, G M Nardi, A Laforgia, F R Grassi, B Rapone, F Pettini
Purpose: Obstructive Sleep Apnea Syndrome (OSAS) is a respiratory disorder characterized by repeated obstructive episodes affecting upper airways.This study aims at examining the anatomical craniofacial and pharyngeal characteristics of the patient as to identify the obstructive site which triggers the pathologic process.Correlations between otolaryngologic data observed in the patient and the cephalometric ones for the identification of the obstructive site were also highlighted. Materials and methods: We worked on a sample of 16 patients, 12 males and 4 females, attended to at the Otolaryngology Operative Unit of Bari University Hospital...
July 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29280015/the-mendelsohn-maneuver-and-its-effects-on-swallowing-kinematic-analysis-in-three-dimensions-using-dynamic-area-detector-ct
#7
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/29278871/the-effect-of-surface-neuromuscular-electrical-stimulation-on-patients-with-post-stroke-dysphagia
#8
Pingping Meng, Shuchao Zhang, Qiang Wang, Peipei Wang, Chao Han, Jinghui Gao, Shouwei Yue
OBJECTIVE: To assess whether the clinical efficacy of a therapeutic protocol using surface neuromuscular electrical stimulation (sNMES) on patients with post-stroke dysphagia (PSD) is superior to that without sNMES, and whether swallowing functional outcome is different with regards to different electrode placement on patients' skin of neck. METHODS: Thirty patients with PSD were randomly allocated into treatment group A (TGA), treatment group B (TGB) and control group according to a random number table...
December 15, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29276562/multiple-strokes-associated-with-elongation-of-the-hyoid-bone
#9
Cameron Ludt, Michelle Leppert, Asher Jones, John Song, David Kuwayama, Daniel M Pastula, Sharon Poisson
Hyoid bone elongation is an uncommon cause of stroke. Here, we report a case of hyoid bone elongation causing localized trauma to the internal carotid artery, resulting in multiple strokes. A 32-year-old woman presented with unilateral weakness and history of a recent stroke. Imaging revealed the greater horn of the hyoid bone extending between the external and internal carotid with associated thrombus at the carotid bifurcation and acute stroke. Carotid ultrasound demonstrated movement of the hyoid bone in and out of the space between the external carotid artery and internal carotid artery with neck rotation...
January 2018: Neurohospitalist
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/29223622/airway-changes-following-labor-and-delivery-in-preeclamptic-parturients-a-prospective-case-control-study
#11
P Ahuja, D Jain, N Bhardwaj, K Jain, S Gainder, M Kang
BACKGROUND: Preeclampsia is associated with greater narrowing of the airway than normal pregnancy, but it is not known if these changes worsen during labor and delivery. The aim of the study was to evaluate the airway during and after labor in women with or without preeclampsia. METHODS: Twenty-five normal and 25 severely preeclamptic pregnant women in early labor were recruited in this single-center, prospective, case-control study. Airway assessment was performed (a) before active labor (b) within one hour of delivery and (c) 24-48 h postpartum...
November 6, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/29219191/the-development-of-the-human-hyoid-larynx-complex-revisited
#12
Bernadette S de Bakker, Henri M de Bakker, Vidija Soerdjbalie-Maikoe, Frederik G Dikkers
OBJECTIVES/HYPOTHESIS: The hyoid-larynx complex is highly prone to anatomical variation. The etiology of anatomical variants such as Eagle's syndrome and the aberrant hyoid apparatus can be explained from embryonic development. Modern textbooks state that the hyoid bone body develops from the second and third pharyngeal arch cartilages, and that thyroid cartilage derives from the fourth and sixth arch cartilages. This description, however, is incompatible with various anatomical variants, and it is unclear whether it was based on observations in human embryos or on comparative embryology...
December 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29206291/cranial-shape-variation-in-adult-howler-monkeys-alouatta-seniculus
#13
Luca Fiorenza, Emiliano Bruner
Howler monkeys (genus Alouatta) display a distinctive cranial architecture characterized by airorhynchy (or retroflexion of the facial skeleton on the cranial base), a small braincase, and a posteriorly oriented foramen magnum. This configuration has been associated with distinct factors including a high folivory diet, locomotion, and the presence of a specialized vocal tract characterized by large hyoid bone. However, the morphological relationships between the facial and neurocranial blocks in Alouatta have been scarcely investigated...
December 5, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29204589/hyoid-myotomy-and-suspension-without-simultaneous-palate-or-tongue-base-surgery%C3%A2-for-obstructive-sleep-apnea
#14
Adrian A Ong, Jonathan Buttram, Shaun A Nguyen, Dustin Platter, Michael R Abidin, M Boyd Gillespie
Objective: Determine the effects of hyoid myotomy and suspension (HMS) without concurrent palatal or tongue base sleep surgery for obstructive sleep apnea (OSA). Method: Patients with OSA treated with HMS were identified using CPT code (21685) at an academic and private sleep surgery clinic. Those who underwent concurrent palatal or tongue base sleep surgery were excluded. Outcomes included simultaneous procedures, apnea-hypopnea index (AHI), lowest oxyhemoglobin saturation (LSAT), and Epworth Sleepiness Scale (ESS)...
June 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29204584/anatomic-measures-of-upper-airway-structures-in-obstructive-sleep-apnea
#15
Jose E Barrera, Candace Y Pau, Veronique-Isabelle Forest, Andrew B Holbrook, Gerald R Popelka
Objective: Determine if anatomic dimensions of airway structures are associated with airway obstruction in obstructive sleep apnea (OSA) patients. Methods: Twenty-eight subjects with (n = 14) and without (n = 14) OSA as determined by clinical symptoms and sleep studies; volunteer sample. Skeletal and soft tissue dimensions were measured from radiocephalometry and magnetic resonance imaging. The soft palate thickness, mandibular plane-hyoid (MP-H) distance, posterior airway space (PAS) diameters and area, and tongue volume were calculated...
June 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29201478/historical-case-of-cervical-penetrating-wound-from-first-aid-to-surgical-intervention
#16
Koné Fatogoma Issa, Keïta Mohamed Amadou, Soumahoro Siaka, Konaté N'faly, Diarra Kassim, Timbo Samba Karim
Objective: We report a case of cervical penetrating wound by posing the problem of its support and by analyzing the chain of survival of a patient to human sacrifice. Case Report: It was an 11-year-old boy admitted to the hosting service of cervical penetrating wound emergency occurring in a context of human sacrifice by weapon (knife). On admission, the conscious patient had a left cervical hematoma at the level of the cervical zone II and severe signs of acute anemia...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/29201389/the-feasibility-of-assessing-swallowing-physiology-following-prolonged-intubation-after-cardiovascular-surgery
#17
Stacey A Skoretz, Terrence M Yau, John T Granton, Rosemary Martino
Background: Dysphagia following prolonged intubation after cardiovascular (CV) surgery is common occurring in 67% of patients; however, this population's swallowing physiology has never been prospectively evaluated using standardized methods. Hence, prior to conducting a larger study, our primary objective was to determine the feasibility of assessing swallowing physiology using instrumentation and validated interpretation methods in cardiovascular surgical patients following prolonged intubation...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29198289/the-incidence-and-characterization-of-globus-sensation-dysphagia-and-odynophagia-following-surgery-for-obstructive-sleep-apnea
#18
Masanari G Kato, Mitchell J Isaac, M Boyd Gillespie, Ashli K O'Rourke
STUDY OBJECTIVES: To determine the incidence, duration, and predictors of swallowing-related symptoms following upper airway surgery for obstructive sleep apnea. METHODS: Adults (age 18 years or older) who underwent surgery for obstructive sleep apnea at a tertiary care institution from January 2012 to December 2015 were retrospectively reviewed. The incidence, duration, and associated factors of postoperative swallowing complaints were evaluated. RESULTS: A total of 130 patients (135 surgical encounters) met criteria for inclusion...
November 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29194053/cervical-injuries-in-drowning-cases-a-case-report-and-a-review-of-literature
#19
Maroua Boussaid, Mohamed Amin Mesrati, Yosra Mahjoub, Nidhal Haj Salem, Abdelfateh Zakhama, Ali Chadly, Adnen Moussa, Abir Aissaoui
Discovery of bruises in the muscles of the neck and a fracture of the hyoid bone in a body recovered from water makes the diagnosis and the determination of the manner of death difficult.The aims of this work are to report a case of a drowned body with cervical injuries and to highlight the importance of interpreting these findings accurately.A 39-year-old woman was found dead face down in a 6-m deep well with a 3-m water level. She was mentally disturbed and had a history of suicide attempts. In fact, she had previously attempted to jump into that well in an attempt to put an end to her life...
December 1, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29184396/excessive-anterior-cervical-muscle-tone-affects-hyoid-bone-kinetics-during-swallowing-in-healthy-individuals
#20
Yasuhiro Yamazaki, Haruka Tohara, Koji Hara, Ayako Nakane, Yoko Wakasugi, Kohei Yamaguchi, Shunsuke Minakuchi
Purpose: This study aimed to determine whether excessive neck muscle tone affects hyoid bone kinetics during swallowing using videofluorography (VF) in an unnatural posture in healthy individuals. Subjects and methods: Subjects were 28 healthy adults (12 men, 16 women; mean age, 39.75±9.50 years) without any history or present complaints of swallowing disorders. We first established the participant's posture a reclining wheelchair that was adjusted to a 30-degree angle with the headrest (without excessive neck muscle tone) or without headrest (with excessive neck muscle tone), used an electromyogram above the mylohyoid muscle to represent the suprahyoid muscles and above the sternohyoid muscle to represent the infrahyoid muscles to confirm neck muscle tone, and then conducted VF of swallowing measurements...
2017: Clinical Interventions in Aging
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