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https://www.readbyqxmd.com/read/29143333/the-effect-of-alcohol-based-hand-sanitizer-vapors-on-evidential-breath-alcohol-test-results
#1
Ellen Strawsine, Brian Lutmer
This study was undertaken to determine if the application of alcohol-based hand sanitizers (ABHSs) to the hands of a breath test operator will affect the results obtained on evidential breath alcohol instruments (EBTs). This study obtained breath samples on three different EBTs immediately after application of either gel or foam ABHS to the operator's hands. A small, but significant, number of initial analyses (13 of 130, 10%) resulted in positive breath alcohol concentrations, while 41 samples (31.5%) resulted in a status code...
November 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29142556/occurrence-of-oral-habits-among-preschool-children-with-autism-spectrum-disorder
#2
Fares S Al-Sehaibany
Objective: To determine occurrence of oral habits among Saudi preschool children with autism spectrum disorder (ASD) and compare it with healthy preschool children. Methods: This study was conducted over a 14-months period in Riyadh, Saudi Arabia. The sample consisted of two groups; a study group (SG) of 150 ASD children, and a control group (CG) of age- and gender-matched 150 healthy children. The parents of the children in both the groups were administered a questionnaire that included questions about the children's demographic information and previous or persistent oral habits...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29128524/numerical-study-of-the-airflow-structures-in-an-idealized-mouth-throat-under-light-and-heavy-breathing-intensities-using-large-eddy-simulation
#3
Xinguang Cui, Wenwang Wu, Eva Gutheil
An excellent understanding of the airflow structures is critical to enhance the efficiency of drug delivery via the human oral airway. The present paper investigates the characteristics of both steady and unsteady airflow structures in an idealized mouth-throat using large eddy simulation (LES). Representative inhalation flow rates of 15L/min at rest and 60L/min in exercise are considered. The study shows that there are more secondary vortices in the pharynx and the laryngeal jet is much longer and more concave in the steady flow field at 15L/min compared to the higher inspiration rate, which decreases the possibility of drug impinging on the wall...
November 8, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29123915/global-cerebral-ischemia-with-subsequent-respiratory-arrest-in-a-cat-after-repeated-use-of-a-spring-loaded-mouth-gag
#4
Emily A Hartman, Robert J McCarthy, Mary A Labato
Case summary: A 10-year-old neutered male domestic shorthair cat was evaluated because of signs of stertorous breathing and reverse sneezing of 8 months' duration. A CT scan performed 1 week before evaluation indicated nasopharyngeal stenosis or collapse. Increased respiratory effort, stertorous breathing, coughing, reverse sneezing, bilateral black ocular discharge and mucoid left nasal discharge were noted. Rhinoscopy suggested possible nasopharyngeal stenosis. Balloon dilation was attempted but unsuccessful...
July 2017: JFMS open reports
https://www.readbyqxmd.com/read/29112988/relationship-between-spending-on-electronic-cigarettes-30-day-use-and-disease-symptoms-among-current-adult-cigarette-smokers-in-the-u-s
#5
Tingting Yao, Wendy Max, Hai-Yen Sung, Stanton A Glantz, Rachel L Goldberg, Julie B Wang, Yingning Wang, James Lightwood, Janine Cataldo
OBJECTIVE: To examine the relationship between spending on electronic cigarettes (e-cigarettes) and disease symptoms compared with the relationship between 30-day e-cigarette use and disease symptoms among adult cigarette smokers in the U.S. METHODS: We analyzed data from the Tobacco and Attitudes Beliefs Survey which included 533 respondents aged 24+ who were current cigarette smokers and e-cigarette ever users. Fifteen self-reported disease symptoms were included as outcome variables...
2017: PloS One
https://www.readbyqxmd.com/read/29103442/clinical-recognition-of-mouth-breathers-by-orthodontists-a-preliminary-study
#6
Julia Garcia Costa, Genilza Silva Costa, Carolina Costa, Oswaldo de Vasconcellos Vilella, Claudia Trindade Mattos, Adriana de Alcantara Cury-Saramago
INTRODUCTION: A routine diagnosis of a patient's breathing status performed by an orthodontist normally includes visual assessment, medical history, clinical examination of habitual lip posture, size and shape of the nostrils, reflex control of the alar muscle and respiratory tests, and the dental mirror test. The objective of this study was to test the recognition of mouth breathers in young persons by an orthodontist and agreement with an otolaryngologist's reference diagnosis when routine assessments were carried out...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29101822/internal-dosimetry-of-inhaled-iodine-131
#7
Mitra Kiani Nasab, Laleh Rafat Motavalli, Hashem Miri Hakimabad
In this paper, the dose assessment for the iodine inhalation exposure in 19 aerosol sizes and three gas/vapor forms at three levels of thyroid uptake, was performed. Two different modes of work (light vs. heavy) and breathing (nose vs. mouth) for aerosol inhalation were investigated. In order to calculate the cumulated activities per unit of inhaled activity, a combined model which included the latest models of both human respiratory and alimentary tract was developed. The S values for (131)I were computed based on the ICRP adult male and female reference voxel phantoms by the Monte Carlo method...
November 1, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29101633/numerical-study-of-dynamic-glottis-and-tidal-breathing-on-respiratory-sounds-in-a-human-upper-airway-model
#8
Jinxiang Xi, Zhaoxuan Wang, Khaled Talaat, Carri Glide-Hurst, Haibo Dong
BACKGROUND: Human snores are caused by vibrating anatomical structures in the upper airway. The glottis is a highly variable structure and a critical organ regulating inhaled flows. However, the effects of the glottis motion on airflow and breathing sound are not well understood, while static glottises have been implemented in most previous in silico studies. The objective of this study is to develop a computational acoustic model of human airways with a dynamic glottis and quantify the effects of glottis motion and tidal breathing on airflow and sound generation...
November 3, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29094751/evaluation-of-a-novel-waste-anaesthetic-gas-scavenger-device-for-use-during-recovery-from-anaesthesia
#9
R Tallent, J Corcoran, J Sebastian
Volatile anaesthetic agents are a potential occupational health hazard to theatre and recovery staff. Operating theatres and anaesthetic rooms are required to be equipped with scavenging systems, but recovery units often are not. We compared exhaled, spectrophotometric sevoflurane and desflurane concentrations 15 cm from the mouth ('patient breathing zone') and 91 cm laterally to the patient ('nurse work zone') in 120 patients after tracheal extubation who were consecutively allocated to either ISO-Gard mask oxygen/scavenging or standard oxygen mask, 0 min, 10 min and 20 min after arrival in the theatre recovery unit...
November 2, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29079097/assessing-the-relationship-between-movement-and-airflow-in-the-upper-airway-using-computational-fluid-dynamics-with-motion-determined-from-magnetic-resonance-imaging
#10
Alister J Bates, Andreas Schuh, Gabriel Amine-Eddine, Keith McConnell, Wolfgang Loew, Robert J Fleck, Jason C Woods, Charles L Dumoulin, Raouf S Amin
BACKGROUND: Computational fluid dynamics simulations of respiratory airflow in the upper airway reveal clinically relevant information, including sites of local resistance, inhaled particle deposition, and the effect of pathological constrictions. Unlike previous simulations, which have been performed on rigid anatomical models from static medical imaging, this work utilises ciné imaging during respiration to create dynamic models and more closely represent airway physiology. METHODS: Airway movement maps were obtained from non-rigid image registration of fast-cine MRI and applied to high-spatial-resolution airway surface models...
October 14, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29066588/effect-of-high-flow-nasal-cannula-on-expiratory-pressure-and-ventilation-in-infant-pediatric-and-adult-models
#11
Katie R Nielsen, Laura E Ellington, Alan J Gray, Larissa I Stanberry, Lincoln S Smith, Robert M DiBlasi
BACKGROUND: Heated and humidified high-flow nasal cannula (HFNC) is a widely used form of respiratory support; however, data regarding optimal flows for a given patient size or disease state are lacking. A comprehensive study of the physiologic effects of HFNC is needed to better understand the mechanisms of action. The objective of the current study was to quantify the effect of HFNC settings in age-specific, anatomically correct nasal airways and spontaneously breathing lung models...
October 24, 2017: Respiratory Care
https://www.readbyqxmd.com/read/29060101/recognizing-cigarette-smoke-inhalations-using-hidden-markov-models
#12
Raul I Ramos-Garcia, Edward Sazonov, Stephen Tiffany
Previous studies with the Personal Automatic Cigarette Tracker (PACT) wearable system have found that smoking presents a distinct temporal breathing pattern, which might be well-suited for recognition by hidden Markov models (HMMs). In this work, we explored the feasibility of using HMMs to characterize the temporal information of smoking inhalations contained in the respiratory signals such as tidal volume, airflow, and the signal from the hand-to-mouth proximity sensor. Left-to-right HMMs were built to classify smoking and non-smoking inhalations using either only the respiratory signals, or both respiratory and hand proximity signals...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058083/exercise-program-design-considerations-for-head-and-neck-cancer-survivors
#13
Adrian W Midgley, Derek Lowe, Andrew R Levy, Vishal Mepani, Simon N Rogers
The present study aimed to establish exercise preferences, barriers, and perceived benefits among head and neck cancer survivors, as well as their level of interest in participating in an exercise program. Patients treated for primary squamous cell carcinoma of the head and neck between 2010 and 2014 were identified from the hospital database and sent a postal questionnaire pack to establish exercise preferences, barriers, perceived benefits, current physical activity levels, and quality of life. A postal reminder was sent to non-responders 4 weeks later...
October 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29054835/a-strategy-to-reduce-critical-cardiorespiratory-alarms-due-to-intermittent-enteral-feeding-of-preterm-neonates-in-intensive-care
#14
Rohan Joshi, Carola van Pul, Anouk Sanders, Hans Weda, Jan Willem Bikker, Loe Feijs, Peter Andriessen
BACKGROUND: Many preterm infants require enteral feeding as they cannot coordinate sucking, swallowing, and breathing. In enteral feeding, milk feeds are delivered through a small feeding tube passed via the nose or mouth into the stomach. Intermittent milk feeds may either be administered using a syringe to gently push milk into the infant's stomach (push feed) or milk can be poured into a syringe attached to the tube and allowed to drip in by gravity (gravity feed). This practice of enteral feeding is common in neonatal intensive care units...
October 20, 2017: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/29054499/coupled-in-silico-platform-computational-fluid-dynamics-cfd-and-physiologically-based-pharmacokinetic-pbpk-modelling
#15
Aleksandra Vulović, Tijana Šušteršič, Sandra Cvijić, Svetlana Ibrić, Nenad Filipović
One of the critical components of the respiratory drug delivery is the manner in which the inhaled aerosol is deposited in respiratory tract compartments. Depending on formulation properties, device characteristics and breathing pattern, only a certain fraction of the dose will reach the target site in the lungs, while the rest of the drug will deposit in the inhalation device or in the mouth-throat region. The aim of this study was to link the Computational fluid dynamics (CFD) with physiologically-based pharmacokinetic (PBPK) modelling in order to predict aerolisolization of different dry powder formulations, and estimate concomitant in vivo deposition and absorption of amiloride hydrochloride...
October 17, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29046025/-asthma-associated-oral-and-dental-health-repercussions-in-children-aged-6-to-12-years
#16
Juana Angélica Ramos-Ríos, Esperanza Ramírez-Hernández, Eliza Mireya Vázquez-Rodríguez, Francisco Vázquez-Nava
BACKGROUND: Asthma, which is characterized by mouth breathing and by the use of drugs for its treatment, affects between 1 and 30% of children and adolescents. There are only few studies reporting its impact on the oral cavity. OBJECTIVE: To find out the most common asthma-associated repercussions in 6 to 12-year-old children. METHODS: Cross-sectional, comparative, analytical study carried out in 2 primary schools from Coclique, Veracruz, Mexico, in 6 to 12-year-old children...
July 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29044543/investigating-the-effects-of-laryngotracheal-stenosis-on-upper-airway-aerodynamics
#17
Tracy Cheng, David Carpenter, Seth Cohen, David Witsell, Dennis O Frank-Ito
OBJECTIVE: Very little is known about the impact of laryngotracheal stenosis (LTS) on inspiratory airflow and resistance, especially in air hunger states. This study investigates the effect of LTS on airway resistance and volumetric flow across three different inspiratory pressures. METHODS: Head-and-neck computed tomography scans of 11 subjects from 2010 to 2016 were collected. Three-dimensional reconstructions of the upper airway from the nostrils to carina, including the oral cavity, were created for one subject with a normal airway and for 10 patients with LTS...
October 17, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29037603/mri-and-ct-lung-biomarkers-towards-an-in-vivo-understanding-of-lung-biomechanics
#18
REVIEW
Heather M Young, Rachel L Eddy, Grace Parraga
BACKGROUND: The biomechanical properties of the lung are necessarily dependent on its structure and function, both of which are complex and change over time and space. This makes in vivo evaluation of lung biomechanics and a deep understanding of lung biomarkers, very challenging. In patients and animal models of lung disease, in vivo evaluations of lung structure and function are typically made at the mouth and include spirometry, multiple-breath gas washout tests and the forced oscillation technique...
September 29, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29033766/effect-of-oral-care-gel-for-burning-mouth-syndrome-in-a-patient-with-hepatitis-c-a-case-report
#19
Yumiko Nagao, Yuji Kawahigashi, Kanae Kimura, Michio Sata
Burning mouth syndrome (BMS) is a burning sensation in the mouth with no underlying dental or medical cause. To date, there is no satisfactory treatment for BMS. Herein, we present the case of a 42-year-old female presenting with hepatitis C virus infection along with BMS. Despite two interferon therapies and a sustained virologic response, the discomfort in her oral mucosa persisted. At the age of 51, the patient complained of burning sensation and tingling pain in the tongue; a thin layer of REFRECARE-H®, an oral care gel (therapeutic dentifrice), was applied on the oral membrane after each meal for 60 days...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29016983/predictors-of-sleep-disordered-breathing-in-children-the-panic-study
#20
Tiina Ikävalko, Matti Närhi, Aino-Maija Eloranta, Niina Lintu, Riitta Myllykangas, Anu Vierola, Henri Tuomilehto, Timo Lakka, Riitta Pahkala
Objective: We studied longitudinally the associations of craniofacial morphology, mouth breathing, orthodontic treatment, and body fat content with the risk of having and developing sleep disordered breathing (SDB) in childhood. We hypothesized that deviant craniofacial morphology, mouth breathing, and adiposity predict SDB among children. Materials and methods: The participants were 412 children 6-8 years of age examined at baseline and 329 children aged 9-11 years re-examined at an average 2...
July 11, 2017: European Journal of Orthodontics
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