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https://www.readbyqxmd.com/read/28645926/nasopharyngeal-glial-heterotopia-with-delayed-postoperative-meningitis
#1
Kenichi Maeda, Kenji Furuno, Pin Fee Chong, Takato Morioka
A male infant, who underwent radical resection of a large glial heterotopia at the nasopharynx at 8 days, developed delayed postoperative bacterial meningitis at 9 months. Neuroradiological examination clearly demonstrated that meningitis had occurred because of the intracranial and extracranial connections, which were scarcely seen in the perioperative period. A transsphenoidal extension of hypothalamic hamartoma is possible because the connection started from the right optic nerve, running through the transsphenoidal canal in the sphenoid bone and terminating at the recurrent mass in the nasopharyngeal region...
June 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28645717/surveillance-of-pneumococcal-colonization-and-invasive-pneumococcal-disease-reveals-shift-in-prevalent-carriage-serotypes-in-massachusetts-children-to-relatively-low-invasiveness
#2
I Yildirim, B A Little, J Finkelstein, G Lee, W P Hanage, K Shea, S I Pelton
BACKGROUND: Following the introduction of pneumococcal conjugate vaccines (PCV), overall nasopharyngeal colonization rates have not changed significantly, however a dramatic and sustained decline in invasive pneumococcal disease (IPD) in children was observed in every setting where the PCVs were implemented. We aimed to describe the differences in invasive disease potential of serotypes that are common colonizers in pre- and post-vaccine eras in order to provide further insight in our understanding of dynamic epidemiology of pneumococcal diseases...
June 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28643340/trans-endoscopic-diode-laser-fenestration-of-equine-conchae-via-contralateral-nostril-approach
#3
Filip Kološ, Štěpán Bodeček, Zdeněk Žert
OBJECTIVE: To describe and report preliminary outcomes of a contralateral trans-nasal endoscopic laser fenestration of the conchae for endoscopic examination and treatment of paranasal sinuses in horses. STUDY DESIGN: Cadaveric experimental and prospective clinical study. ANIMALS: Normal cadaveric equine heads (n = 7) and equine patients (horses n = 7, donkey n = 1) diagnosed with sinusitis. METHODS: Ex vivo: a video-endoscope containing a diode laser fiber in the working canal was passed through the nostril and retroflexed in the nasopharynx toward the contralateral conchae...
June 23, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28635990/neuroendocrine-neoplasms-of-the-head-and-neck-and-olfactory-neuroblastoma-diagnosis-and-classification
#4
S Uccella, G Ottini, C Facco, R Maragliano, S Asioli, F Sessa, S La Rosa
Neuroendocrine neoplasms (NENs) of the head and neck are a rare group of heterogeneous epithelial neoplastic proliferations arising in virtually all of the different organs of this region, particularly in the nasal cavity, the paranasal sinuses, the nasopharynx, the larynx, the salivary glands, and the middle ear. They encompass a wide spectrum of entities ranging from very indolent neuroendocrine tumors to highly aggressive neuroendocrine carcinomas. They may represent a challenge for radiologists, oncologists, and pathologists and a correct diagnosis is crucial for the management of patients...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28632604/reassessing-the-anatomic-origin-of-the-juvenile-nasopharyngeal-angiofibroma
#5
Colin D McKnight, Hemant A Parmar, Kuanwong Watcharotone, Suresh K Mukherji
OBJECTIVE: A modern imaging review is necessary to further define the anatomic origin of the juvenile nasopharyngeal angiofibroma. METHODS: After institutional review board approval, a search from January 1998 to January 2013 yielded 33 male patients (aged 10-23 years) with pathologically proven juvenile nasopharyngeal angiofibroma lesions, as well as pretreatment computed tomography/magnetic resonance imaging. Juvenile nasopharyngeal angiofibroma involvement was assessed in the following regions: sphenopalatine foramen, pterygopalatine fossa, vidian canal, nasopharynx, nasal cavity, sphenoid sinus, choana, pterygomaxillary fissure/masticator space, orbit, and sphenoid bone...
June 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28617697/evaluation-of-the-temple-touch-pro-a-novel-noninvasive-core-temperature-monitoring-system
#6
Shmuel Evron, Avi Weissman, Vadim Toivis, Dana Baron Shahaf, Jing You, Daniel I Sessler, Tiberiu Ezri
BACKGROUND: The Temple Touch Pro (TTP) is a novel system that estimates core temperature from skin over the temporal artery. We tested the hypothesis that this noninvasive system estimates core temperature to an accuracy within 0.5°C. METHODS: Core temperature was continuously monitored in 50 adult and pediatric surgical patients by positioning the sensor patch of a TTP over one temporal artery. The sensor consists of a thermistor array near the skin surface, another set of thermistors above an insulator, and a second insulator between the upper unit and the environment...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28616365/streptococcus-pneumoniae-otitis-media-pathogenesis-and-how-it-informs-our-understanding-of-vaccine-strategies
#7
REVIEW
Caroline Bergenfelz, Anders P Hakansson
PURPOSE OF REVIEW: This study aimed to review the literature regarding the mechanisms of transition from asymptomatic colonization to induction of otitis media and how the insight into the pathogenesis of otitis media has the potential to help design future otitis media-directed vaccines. RECENT FINDINGS: Respiratory viruses have long been shown to predispose individuals to bacterial respiratory infections, such as otitis media. Recent information suggests that Streptococcus pneumoniae, which colonize the nasopharynx asymptomatically, can sense potentially "threatening" changes in the nasopharyngeal environment caused by virus infection by upregulating specific sets of genes involved in biofilm release, dissemination from the nasopharynx to other sites, and protection against the host immune system...
2017: Current Otorhinolaryngology Reports
https://www.readbyqxmd.com/read/28616006/the-burden-of-chronic-pain-after-major-head-and-neck-tumor-therapy
#8
Abdullah Sulieman Terkawi, Siny Tsang, Anwar S Alshehri, Dhaifallah S Mulafikh, Abdulrahman A Alghulikah, Saleh F AlDhahri
INTRODUCTION: Little is known about the burden of chronic pain after major head and neck tumors' therapy. In this study, we aimed to estimate the prevalence of chronic pain, explore the factors associated with the presence of chronic pain, and assess the consequences of chronic pain on the patients' quality of life. METHODOLOGY: This was a cross-sectional survey among patients who had completed their therapy (e.g., surgery, radiotherapy, and chemotherapy) for major head and neck (larynx, nasopharynx, oropharynx, hypopharynx, oral cavity, tongue, and sinuses) tumors after at least 3 months...
May 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28605238/mucin-1-protects-against-severe-streptococcus-pneumoniae-infection
#9
Poshmaal Dhar, Garrett Z Ng, Eileen M Dunne, Philip Sutton
Streptococcus pneumoniae is a bacterial pathogen that commonly resides in the human nasopharynx, typically without causing any disease. However, in some cases these bacteria migrate from the nasopharynx to other sites of the body such as the lungs and bloodstream causing pneumonia and sepsis, respectively. This study used a mouse model of infection to investigate the potential role of Mucin 1 (MUC1), a cell membrane-associated glycoprotein known for playing a key barrier role at mucosal surfaces, in regulating this process...
June 12, 2017: Virulence
https://www.readbyqxmd.com/read/28600561/the-moda2-phasevarion-of-nontypeable-haemophilus-influenzae-regulates-resistance-to-oxidative-stress-and-killing-by-human-neutrophils
#10
Kenneth L Brockman, M Taylor Branstool, John M Atack, Frank Robledo-Avila, Santiago Partida-Sanchez, Michael P Jennings, Lauren O Bakaletz
Nontypeable Haemophilus influenzae (NTHI) is the causative agent of multiple respiratory tract infections. Several human pathogens, including NTHI, possess a novel genetic system, termed the phasevarion, which mediates a rapid and reversible change in the expression of many genes throughout the chromosome. This occurs by phase variation of a single gene (modA) that encodes a DNA methyltransferase and results in two phenotypically distinct subpopulations, ON and OFF. NTHI encounters many pressures within the various microenvironments of its human host as the disease course evolves from one of asymptomatic nasopharyngeal carriage to overt disease...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28596991/long-persistence-of-a-streptococcus-pneumoniae-23f-clone-in-a-cystic-fibrosis-patient
#11
Martin Rieger, Harald Mauch, Regine Hakenbeck
Streptococcus pneumoniae isolates of serotype 23F with intermediate penicillin resistance were recovered on seven occasions over a period of 37 months from a cystic fibrosis patient in Berlin. All isolates expressed the same multilocus sequence type (ST), ST10523. The genome sequences of the first and last isolates, D122 and D141, revealed the absence of two phage-related gene clusters compared to the genome of another ST10523 strain, D219, isolated earlier at a different place in Germany. Genomes of all three strains carried the same novel mosaic penicillin-binding protein (PBP) genes, pbp2x, pbp2b, and pbp1a; these genes were distinct from those of other penicillin-resistant S...
May 2017: MSphere
https://www.readbyqxmd.com/read/28590397/normal-nasopharyngeal-measurement-by-computed-tomography-in-adult
#12
Mohammad Waheed El-Anwar, Atef Hamed Ali, Ismail Elnashar, Inas M Elfiki, Ayman F Ahmed, Ghada Abdulmonaem
BACKGROUND: This study aims to investigate the detailed computed tomography (CT) measurement of the nasopharynx (NP) in normal adult detecting mean of its dimension and relation of that measurement to that of the sphenoid sinus. METHODOLOGY/PRINCIPAL: A normal paranasal CT scan and a straight nasal septum of 128 individuals (256 sphenoid sinuses) were included in the study. Axial images were acquired with multiplanar reformates to obtain delicate details in coronal and sagittal planes for all subjects...
June 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28587681/pet-ct-guided-dose-painting-versus-ct-based-intensity-modulated-radiation-therapy-in-locoregional-advanced-nasopharyngeal-carcinoma
#13
Feng Liu, Xu-Ping Xi, Hui Wang, Ya-Qian Han, Feng Xiao, Ying Hu, Qian He, Lin Zhang, Qin Xiao, Lin Liu, Le Luo, Yun Li, Yi Mo, Hong-Zhi Ma
BACKGROUND: The effect of (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT)-guided dose-painting intensity-modulated radiation therapy (IMRT) in locoregionally advanced nasopharyngeal carcinoma (NPC) is unclear. This study aimed to assess the efficacy and toxicity of such combination. METHODS: From 2012 to 2014, 213 patients with stage III-IVB NPC received chemoradiotherapy by PET/CT-guided DP-IMRT (group A, n = 101) or CT-based IMRT (group B, n = 112)...
January 13, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28587125/equine-welfare-during-exercise-an-evaluation-of-breathing-breathlessness-and-bridles
#14
REVIEW
David J Mellor, Ngaio J Beausoleil
Horses engaged in strenuous exercise display physiological responses that approach the upper functional limits of key organ systems, in particular their cardiorespiratory systems. Maximum athletic performance is therefore vulnerable to factors that diminish these functional capacities, and such impairment might also lead to horses experiencing unpleasant respiratory sensations, i.e., breathlessness. The aim of this review is to use existing literature on equine cardiorespiratory physiology and athletic performance to evaluate the potential for various types of breathlessness to occur in exercising horses...
May 26, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28586394/polyamine-transporter-potabcd-is-required-for-virulence-of-encapsulated-but-not-nonencapsulated-streptococcus-pneumoniae
#15
Haley R Pipkins, Jessica L Bradshaw, Lance E Keller, Edwin Swiatlo, Larry S McDaniel
Streptococcus pneumoniae is commonly found in the human nasopharynx and is the causative agent of multiple diseases. Since invasive pneumococcal infections are associated with encapsulated pneumococci, the capsular polysaccharide is the target of licensed pneumococcal vaccines. However, there is an increasing distribution of non-vaccine serotypes, as well as nonencapsulated S. pneumoniae (NESp). Both encapsulated and nonencapsulated pneumococci possess the polyamine oligo-transport operon (potABCD). Previous research has shown inactivation of the pot operon in encapsulated pneumococci alters protein expression and leads to a significant reduction in pneumococcal murine colonization, but the role of the pot operon in NESp is unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28576759/competitive-dominance-within-biofilm-consortia-regulate-the-relative-distribution-of-pneumococcal-nasopharyngeal-density
#16
Xueqing Wu, Nate T Jacobs, Catherine Bozio, Preston Palm, Santiago M Lattar, Christiane R Hanke, David M Watson, Fuminori Sakai, Bruce R Levin, Keith P Klugman, Jorge E Vidal
Streptococcus pneumoniae is a main cause of child mortality worldwide, but strains also asymptomatically colonize the upper airways of most children forming biofilms. Recent studies have demonstrated that ∼50% of colonized children carry at least two different serotypes (i.e., strains) in the nasopharynx; however, studies of how strains coexist are limited. In this work, we investigated the physiological, genetics, and ecological requirements for the relative distribution of densities, and spatial localization, of pneumococcal strains within biofilm consortia...
June 2, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28570397/coexistence-of-lymphoepithelial-carcinoma-of-the-parotid-gland-and-submandibular-gland-pleomorphic-adenoma
#17
Ozgul Topal, Hilal Erinanc
Lymphoepithelial carcinoma is a variant of undifferentiated carcinoma with characteristic dense lymphoid stroma in which nasopharynx is site of predilection. Racial and geographic association and Epstein-Barr virus positivity in endemic areas are other characteristics of this rare neoplasm. Lymphoepithelial carcinoma accounts for only 0.4% of malignant salivary gland tumors. The authors present a patient with Epstein-Barr virus positive lymphoepithelial carcinoma of the parotid gland in a nonendemic region...
May 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28566046/are-all-manikins-created-equal-a-pilot-study-of-simulator-upper-airway-anatomic-fidelity
#18
Jennifer A Woo, Sonya Malekzadeh, Kelly M Malloy, Ellen S Deutsch
This study evaluates the anatomic fidelity of several commercially available pediatric and adult manikins, including airway task trainers, which could be used in aerodigestive procedure training. Twenty-three experienced otolaryngologists assessed the aerodigestive anatomy of 5 adult and 5 pediatric manikins in a passive state, using rigid and flexible endoscopy. Anatomic fidelity was rated on a 5-point scale for the following: nasal cavity, nasopharynx, oral cavity, oropharynx, larynx, trachea, esophagus, and neck...
June 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28559027/small-cell-carcinoma-of-the-head-and-neck-an-analysis-of-the-national-cancer-database
#19
Kelli B Pointer, Huaising C Ko, Jeffrey V Brower, Matthew E Witek, Randall J Kimple, Ricardo V Lloyd, Paul M Harari, Andrew M Baschnagel
PURPOSE/OBJECTIVE(S): To evaluate treatment trends and overall survival of patients with small cell carcinoma of the head and neck region. MATERIALS/METHODS: Patients from 2004 to 2012 were identified from the National Cancer Database. Patient demographics and overall survival were analyzed. Multivariable analysis was used to identify predictors of survival. RESULTS: Among 347,252 head and neck patients a total of 1042 (0.3%) patients with small cell carcinoma were identified...
June 2017: Oral Oncology
https://www.readbyqxmd.com/read/28558725/benefits-of-local-tumor-excision-and-pharyngectomy-on-the-survival-of-nasopharyngeal-carcinoma-patients-a-retrospective-observational-study-based-on-seer-database
#20
Jian Sun, Zhongying Huang, Zheyu Hu, Rui Sun
BACKGROUND: There is ongoing debate about surgery of primary site in nasopharyngeal carcinoma patients. METHODS: 3919 patients with nasopharyngeal carcinoma identified in the SEER registry between 2004 and 2013. The benefit of surgery of primary nasopharynx tumor site on overall and cancer-specific survival was assessed by risk-adjusted multivariate Cox proportional hazard regression and propensity score matching modeling. RESULTS: Surgery was marginally associated with better overall survival (hazard ratio (HR) = 0...
May 30, 2017: Journal of Translational Medicine
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