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Posterior pharyngitis

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https://www.readbyqxmd.com/read/29217200/timing-is-everything-reiterative-wnt-bmp-and-ra-signaling-regulate-developmental-competence-during-endoderm-organogenesis
#1
Scott A Rankin, Kyle W McCracken, David M Luedeke, Lu Han, James M Wells, John M Shannon, Aaron M Zorn
A small number of signaling pathways are used repeatedly during organogenesis, and they can have drastically different effects on the same population of cells depending on the embryonic stage. How cellular competence changes over developmental time is not well understood. Here we used Xenopus, mouse, and human pluripotent stem cells to investigate how the temporal sequence of Wnt, BMP, and retinoic acid (RA) signals regulates endoderm developmental competence and organ induction, focusing on respiratory fate...
December 4, 2017: Developmental Biology
https://www.readbyqxmd.com/read/29191622/interplay-between-behavior-morphology-and-physiology-supports-lepidophagy-in-the-catfish-pachypterus-khavalchor-siluriformes-horabagridae
#2
Sachin M Gosavi, Sanjay S Kharat, Pradeep Kumkar, Sushant S Navarange
The present study demonstrates the scale-eating behavior of a siluroid catfish, Pachypterus khavalchor, and the role of its oral structure and bacterial endosymbionts in shaping this lepidophagous habit. Scale-eating behavior in P. khavalchor was studied using a series of behavioral experiments. P. khavalchor was found to feed only on the scales of live fish and never of dead fish, even after 72h of starvation. It was nocturnal in habit and attacked all species that were used as prey. Attacking behavior showed extensive chasing of prey species followed by a powerful random strike at the flank or close to the caudal region in posterior oblique position...
July 12, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29181992/the-significance-of-the-pharyngeal-veins-during-carotid-endarterectomy-description-of-an-anatomical-triangle
#3
J Aldoori, V Mahadevan, M Aldoori
Injuries to the hypoglossal and vagus nerves are the most commonly reported injuries during carotid endarterectomy. While unilateral single nerve injury is usually well tolerated, bilateral or combined nerve injuries can pose a serious threat to life. This study aims to increase awareness of the inferior pharyngeal vein, which usually passes posterior to the internal carotid artery but sometimes crosses anterior to it. Injury to either or both hypoglossal and vagus nerves can occur during control of unexpected haemorrhage from the torn and retracted edges of the inferior pharyngeal vein...
November 28, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29160561/can-overnight-stenting-be-safely-eliminated-following-a-pharyngeal-flap-a-matched-comparison-study
#4
Andre M Wineland, Jareen Meinzen-Derr, Paul Willging
OBJECTIVE: Determine if overnight stenting is warranted after pharyngeal flap for management of velopharyngeal insufficiency (VPI) in pediatric patients METHODS: This is a retrospective age-matched cohort study from a single tertiary pediatric facility. Patients who underwent a posterior pharyngeal flap for VPI from January 1, 2013, to December 31, 2016, were included. Two equal groups were constructed based on when their nasal stents were removed, that is, postoperative day (POD) 0 or POD 1...
November 21, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29142848/injury-of-the-external-branch-of-the-superior-laryngeal-nerve-in-thyroid-surgery
#5
REVIEW
Andre S Potenza, Vergilius J F Araujo Filho, Claudio R Cernea
The external branch of the superior laryngeal nerve (EBSLN) innervates the cricothyroid muscle (CTM) to promote lengthening and thinning of the vocal fold, thus increasing voice pitch. The close relation with the superior thyroid vessels (STV) puts the EBSLN in risk every time the superior pole of the thyroid is dissected. It travels downward to innervate the CTM, lateral to the thyroid cartilage and to the inferior pharyngeal constrictor muscle (IPCM), being eventually covered by this muscle fibers as it approaches its entry point...
October 2017: Gland Surgery
https://www.readbyqxmd.com/read/29137075/influence-of-neck-postural-changes-on-cervical-spine-motion-and-angle-during-swallowing
#6
Jun Young Kim, Jae Taek Hong, Joo Seon Oh, Ashish Jain, Il Sup Kim, Seong Hoon Lim, Jun Sung Kim
Occipitocervical (OC) fixation in a neck retraction position could be dangerous due to the risk of postoperative dysphagia. No previous study has demonstrated an association between the cervical posture change and cervical spine motion/angle during swallowing. So, we aimed to analyze the influence of neck posture on the cervical spine motion and angle change during swallowing.Thirty-seven asymptomatic volunteers were recruited for participation this study. A videoflurographic swallowing study was performed in the neutral and retracted neck posture...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29134015/biogeography-and-phylogenetic-position-of-enchodeloides-signyensis-loof-1975-gen-n-comb-n-from-maritime-antarctic-nematoda-nordiidae
#7
Milka Elshishka, Stela Lazarova, Georgi Radoslavov, Peter Hristov, Vlada K Peneva
The taxonomic position of the endemic Antarctic species Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. (= Enchodelus signyensis Loof, 1975) is discussed on the basis of morphological study, including SEM, morphometric data, postembryonic observations, and sequence data of 18S rDNA and the D2-D3 expansion fragments of the large subunit rDNA. A number of characters such as the cuticle and stoma structures, including the presence of moderately developed cuticularised ring around the oral aperture, peculiarities of pharynx expansion, size and position of the posterior pair of pharyngeal nuclei, a less complex uterus, and the position of a posterior ventromedian supplement show that this species differs substantially from the other members of the genus Enchodelus...
2017: ZooKeys
https://www.readbyqxmd.com/read/29115038/ultramorphological-and-molecular-characteristics-of-the-larval-stages-of-the-horse-nasal-myiasis-fly-rhinoestrus-sp-diptera-oestridae-from-mongolian-horse-in-china
#8
Junbin Dong, Haiquan Bao, Lai Mang
Rhinoestrus sp. (Diptera: Oestridae) is an economically important parasite that can cause severe nasal myiasis in equids and can also affect humans. The ultrastructure of all Rhinoestrus sp. larval instars from Mongolian horse was examined by light and scanning electron microscopy to characterize the features of Rhinoestrus. The structure of the anterior region, posterior region, and the spines of the third segment was analyzed for 10 specimens in each larval stage. Additionally, 34 third-instar (L3) larvae of Rhinoestrus sp...
November 8, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29097551/retropharyngeal-course-of-the-internal-carotid-artery
#9
Stanislas Ballivet de Regloix, O Maurin
A 77-year-old male patient presented with dysphonia. Endoscopic examination demonstrated a distortion of the posterior pharyngeal wall, which was pulsatile. The axial CT showed left internal carotid artery in a retropharyngeal location. An anomalous course of the carotid artery in the retropharyngeal space is an unusual finding that poses a risk of vascular injury during pharyngeal surgery and intubation. Such an anomaly may be congenital (incomplete descent of the third aortic arch) and may be more pronounced in older patients secondary to atherosclerosis and hypertension as occurred in our case noted here...
November 2, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29090122/effects-of-bodily-retraction-of-mandibular-incisors-versus-mandibular-setback-surgery-on-pharyngeal-airway-space-a-comparative-study
#10
Byeong-Tak Keum, Sung-Hwan Choi, Yoon Jeong Choi, Hyoung-Seon Baik, Kee-Joon Lee
OBJECTIVE: The purpose of this study was to compare the changes induced in the pharyngeal airway space by orthodontic treatment with bodily retraction of the mandibular incisors and mandibular setback surgery without extraction. METHODS: This retrospective study included 63 adult patients (32 men and 31 women). Thirty-three patients who had been treated via four-bicuspid extraction and bodily retraction of the mandibular incisors (incisor retraction, IR group) were compared with 30 patients who had been treated via mandibular setback surgery (MS group) without extraction...
November 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29071076/burden-of-bacterial-upper-respiratory-tract-pathogens-in-school-children-of-nepal
#11
Sangita Thapa, Shishir Gokhale, Annavarapu Laxminarasimha Sharma, Lokendra Bahadur Sapkota, Shamshul Ansari, Rajendra Gautam, Sony Shrestha, Puja Neopane
INTRODUCTION: Respiratory tract infections are one of the most common human infections in all age group and important cause of mortality and morbidity worldwide. Most bacterial upper respiratory tract infections are vaccine preventable. This study aimed to determine the prevalence of carrier state of bacterial upper respiratory tract pathogens among school children. It also aimed to study their antibiograms. METHODS: The specimen from posterior pharyngeal wall and tonsils were collected from 204 participants on calcium alginate coated swabs (HiMedia)...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29069232/qualitative-and-quantitative-analysis-of-oropharyngeal-swallowing-in-down-syndrome
#12
André Vinicius Marcondes Natel Sales, Célia Maria Giacheti, Paula Cristina Cola, Roberta Gonçalves da Silva
PURPOSE: To describe the qualitative and quantitative temporal analysis of oropharyngeal swallowing in children diagnosed with Down syndrome (DS) through a case series study of six individuals aged 4 to 17 months (mean age = 11.16 months; median = 12 months). METHODS: Qualitative and quantitative temporal analysis of swallowing using videofluoroscopy and specific software. The following parameters were assessed: presence or absence of oral incoordination, labial sphincter sealing incompetence, oral residue, posterior oral spillage, laryngotracheal penetration and aspiration, pharyngeal and total oral transit time (TOTT)...
October 23, 2017: CoDAS
https://www.readbyqxmd.com/read/29068965/single-stage-repair-of-palatal-fistula-and-velopharyngeal-incompetence-by-the-new-l-flap
#13
Mohammad Waheed El-Anwar, Ezzeddin Elsheikh, Sherif Askar
OBJECTIVE: To describe and assess the results of use of the new L-shaped posterior pharyngeal flap for repair of both palatal fistula and velopharyngeal incompetence. METHODS: This study included 10 patients who were diagnosed to have soft palate fistula and persistent velopharyngeal insufficiency (VPI). L-shaped superiorly based pharyngeal flap was harvested from oropharynx and inserted into the soft palate closing the fistula after fistula trimming. The palatal part of the flap (transverse limb) was spread 1 cm horizontally and 1 cm in the anteroposterior direction in soft palate at fistula site closing it without tension...
October 24, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29039288/molecular-and-morphological-characterization-of-belondira-coomansi-n-sp-nematoda-dorylaimida-belondiridae-from-iran
#14
B Golhasan, R Heydari, E Miraeiz, J Abolafia, R Peña-Santiago
A new species belonging to the genus Belondira is described from natural areas in Iran. Belondira coomansi n. sp. is characterized by its general size, the dimensions and appearance of its lip region, presence of distinct labial and post-labial sclerotization, the length of the odontostyle and its inconspicuous lumen and aperture, the length of the neck and its pharyngeal expansion, the reduction of the female anterior genital branch to a simple uterine sac, a very short posterior uterus, the anterior position of the vulva, the length and shape of the caudal region with distinctly thick cuticle at its tip, the length of the spicules, and the presence of only one pair of ventromedian supplements...
October 17, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29035864/redescription-of-the-nematode-parasites-of-lizards-strongyluris-oscari-travassos-1923-heterakidae-from-brazil-and-pharyngodon-mamillatus-linstow-1897-pharyngodonidae-from-egypt
#15
Felipe B Pereira, José L Luque, Luiz E R Tavares
Strongyluris oscari Travassos, 1923, parasite of Topidurus torquatus (Wied-Neuwied, 1820) (Tropiduridae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) of Chalcides ocellatus (Forskal, 1775) (Scincidae) from Egypt, were redescribed based on light and scanning electron microscopy, and re-evaluation of specimens from parasitological collections. The following features were accurately observed in S. oscari for the first time: structure of lips and pharyngeal valve, presence and distribution of somatic papillae, number and arrangement of caudal papillae, presence of inner sclerotised structures supporting the ventral sucker and the ventral region in tail of males, and structure of the posterior anal lip in females...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29032918/adults-with-22q11-2-deletion-syndrome-have-a-different-velopharyngeal-anatomy-with-predisposition-to-velopharyngeal-insufficiency
#16
Charles Filip, Davide Impieri, Ingegerd Aagenæs, Corstiaan Breugem, Hans Erik Høgevold, Tone Særvold, Ragnhild Aukner, Kari Lima, Kim Tønseth, Tore G Abrahamsen
AIM: To find out if subjects with 22q11.2 deletion syndrome (DS) have a different velopharyngeal anatomy which could cause velopharyngeal insufficiency (VPI). METHODS: A prospective study of 16 subjects >16 years of age with 22q11.2 DS, without overt cleft palate and without previous VPI surgery, and 48 healthy controls >18 years of age were included in the study. Speech was recorded and scored blindly by two independent senior speech therapists. All 64 individuals had MRI scans, which were analyzed blindly by a consultant radiologist...
September 22, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29032418/transoral-robotic-surgery-for-squamous-cell-carcinomas-of-the-posterior-pharyngeal-wall
#17
B Lallemant, S Moriniere, P Ceruse, M Lebalch, K Aubry, S Hans, G Dolivet, O Malard, Q Bonduelle, S Vergez
Posterior pharyngeal wall squamous cell carcinomas (SCCs) are rare and have an associated poor prognosis. Progress in transoral resection techniques, in particular, transoral robotic surgery (TORS), have renewed the role of surgery in their treatment. This article presents the oncological and functional results obtained by the French Group of Head and Neck Robotic Surgery for TORS for posterior pharyngeal wall SCC-curative surgery. This retrospective, multicentre study presents data collected between September 2009 and November 2013 for patients treated with TORS for posterior pharyngeal wall SCCs...
December 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29026864/gastroparesis-as-the-sole-presenting-feature-of-neuromyelitis-optica
#18
Ahmed Salahudeen, Tejal Mistry
A 33-year-old African-American woman recently diagnosed with severe idiopathic gastroparesis was readmitted for hypoxic respiratory failure secondary to aspiration pneumonia. A fiber-optic endoscopic evaluation of swallow study revealed severe pharyngeal dysphagia. Brain magnetic resonance imaging showed an ill-defined lesion in the posterior aspect of the medulla concerning for a demyelinating process. Serum neuromyelitis optica immunoglobulin G returned positive. Neuromyelitis optica treatment resulted in the patient's clinical improvement...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/29017464/respective-contribution-of-the-cephalic-neural-crest-and-mesoderm-to-six1-expressing-head-territories-in-the-avian-embryo
#19
Barbara F Fonseca, Gérard Couly, Elisabeth Dupin
BACKGROUND: Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of craniofacial skeleton, dermis, pericytes, fat cells, and tenocytes; and - the mesoderm, which yields muscles, blood vessel endothelia and some posterior cranial bones. The molecular players that orchestrate co-development of cephalic NC and mesodermal cells to properly construct the head of vertebrates remain poorly understood...
October 10, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28980783/-retropharyngeal-abscess-in-children
#20
Pauline Vinckenbosch, Pierre Guilcher, Karma Lambercy, Céline Richard
A retropharyngeal abscess is a collection of pus located behind the posterior pharyngeal wall. Main symptoms include torticoli, pyrexia and odynodysphagia. It can be secondary to upper airway infections, pharyngeal penetrating trauma or idiopathic. Complications are rare, but may be life-threatening due to airway obstruction or infection's spread to the surrounding structures. Surgery is conducted in case of abscess > 2 cm on CT scan images, complication or worsening of the symptoms. This article presents a clinical case with literature review...
October 4, 2017: Revue Médicale Suisse
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