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https://www.readbyqxmd.com/read/29785975/utility-of-otoacoustic-emissions-and-olivocochlear-reflex-in-predicting-vulnerability-to-noise-induced-inner-ear-damage
#1
Sarantis Blioskas, Miltiadis Tsalighopoulos, George Psillas, Konstantinos Markou
Aim: The aim of the present study was to explore the possible utility of otoacoustic emissions (OAEs) and efferent system strength to determine vulnerability to noise exposure in a clinical setting. Materials and Methods: The study group comprised 344 volunteers who had just begun mandatory basic training as Hellenic Corps Officers Military Academy cadets. Pure-tone audiograms were obtained on both ears. Participants were also subjected to diagnostic transient-evoked otoacoustic emissions (TEOAEs)...
May 2018: Noise & Health
https://www.readbyqxmd.com/read/29784792/abrupt-global-ocean-anoxia-during-the-late-ordovician-early-silurian-detected-using-uranium-isotopes-of-marine-carbonates
#2
Rick Bartlett, Maya Elrick, James R Wheeley, Victor Polyak, André Desrochers, Yemane Asmerom
Widespread marine anoxia is hypothesized as the trigger for the second pulse of the Late Ordovician (Hirnantian) mass extinction based on lithologic and geochemical proxies that record local bottom waters or porewaters. We test the anoxia hypothesis using δ238 U values of marine limestones as a global seawater redox proxy. The δ238 U trends at Anticosti Island, Canada, document an abrupt late Hirnantian ∼0.3‰ negative shift continuing through the early Silurian indicating more reducing seawater conditions...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29745880/the-role-of-auditory-evoked-potentials-and-otoacoustic-emissions-in-early-detection-of-hearing-abnormalities-in-beh%C3%A3-et-s-disease-patients-a-case-control-study
#3
Doa W Nada, Radwa M El Khouly, Souzan E Gadow, Shymaa A Hablas, Marwa A Aboelhawa, Doaa S Al Ashkar, Amal M El Barbary, Manal S Hussein, Elsayed Rageh, Alaa M Elsalawy, Mohamed H Abo-Zaid, Samah Elshweikh, Amani M El Gharib
OBJECTIVES: To determine the types and to assess the role of auditory evoked potentials and otoacoustic emissions in early detection of hearing abnormalities in Behçet's disease (BD) patients. Their correlations with disease activity were also considered. METHODS: Thirty patients with BD and thirty apparently sex- and age-matched healthy volunteers were included in this study. Auditory evaluation included pure tone audiometry (PTA), otoacoustic emissions (TEOAEs, DPOAE), auditory brainstem response test (ABR) and cortical auditory evoked potentials (tone and speech CAEPs) for all patients and control...
May 10, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29716248/correlations-between-otoacoustic-emissions-and-performance-in-common-psychoacoustical-tasks
#4
Dennis McFadden, Edward G Pasanen, Mindy M Maloney, Erin M Leshikar, Michelle H Pho
Performance was measured on seven common psychoacoustical tasks for about 75 highly trained subjects. Because some psychoacoustical outcomes varied by race, the subjects were partitioned into White and Non-White categories for analysis. Sex, race, and menstrual-cycle differences in performance are described in a companion paper [McFadden, Pasanen, Maloney, Leshikar, and Pho (2018). J. Acoust. Soc. Am. 143, 2338-2354]. Also measured for all subjects were three types of otoacoustic emissions (OAEs): spontaneous otoacoustic emissions (SOAEs), click-evoked otoacoustic emissions (CEOAEs), and distortion-product otoacoustic emissions (DPOAEs)...
April 2018: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29607389/the-diagnostic-yield-of-open-access-endoscopy-of-the-upper-gastrointestinal-tract-in-the-netherlands
#5
Femke Crouwel, M M Meurs-Szojda, M Klemt-Kropp, P Fockens, M E Grasman
Background and study aims : Since the introduction of open-access esophago-gastroduodenoscopy (OAE) there is an increase in the total number of performed OAEs whilst the frequency of clinical relevant findings has decreased. The aim of this study was to assess the appropriate use and the diagnostic yield of OAE in the Netherlands and to determine which patient variables are able to predict a malignant finding. Patients and methods : A retrospective chart review of all referrals for diagnostic OAE between October 2012 and October 2016 at the Northwest Clinics was performed...
April 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29602987/safety-and-curability-of-laparoscopic-gastrectomy-in-elderly-patients-with-gastric-cancer
#6
Shoji Shimada, Naruhiko Sawada, Sonoko Oae, Junichi Seki, Yojiro Takano, Yasuhiro Ishiyama, Kenta Nakahara, Chiyo Maeda, Eiji Hidaka, Fumio Ishida, Shin-Ei Kudo
BACKGROUND: Elderly patients are often considered as a high-risk population for major abdominal surgery due to reduced functional reserve and increased comorbidities. The aim of this study was to assess the safety and curability of laparoscopic gastrectomy in elderly patients with gastric cancer compared with short- and long-term outcomes in non-elderly patients. METHODS: We retrospectively investigated 386 patients who underwent laparoscopic gastrectomy for gastric cancer between January 2007 and December 2015 at the Digestive Disease Center, Showa University, Northern Yokohama Hospital...
March 30, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29588943/onchocerciasis-associated-epilepsy-from-recent-epidemiological-and-clinical-findings-to-policy-implications
#7
REVIEW
Robert Colebunders, Alfred K Njamnshi, Marieke van Oijen, Deby Mukendi, Jean Marie Kashama, Michel Mandro, Nolbert Gumisiriza, Pierre-Marie Preux, Patrick Suykerbuyk, Richard Idro
A high prevalence of epilepsy is reported in many onchocerciasis-endemic regions. In this paper we discuss recent epidemiological and clinical aspects as well as public health implications of onchocerciasis-associated epilepsy (OAE) and propose a strategy to reduce the burden of disease. OAE probably presents in a variety of clinical manifestations, including the nodding syndrome and the Nakalanga syndrome. The most common clinical presentation, however, is generalized (primarily tonic-clonic) seizures. A characteristic of OAE is the onset of seizures between the ages of 3 and 18 years and clustering in certain families and villages close to rapid-flowing black-fly-infested rivers...
June 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29580280/report-of-the-first-international-workshop-on-onchocerciasis-associated-epilepsy
#8
EDITORIAL
Robert Colebunders, Michel Mandro, Alfred K Njamnshi, Michel Boussinesq, An Hotterbeekx, Joseph Kamgno, Sarah O'Neill, Adrian Hopkins, Patrick Suykerbuyk, Maria-Gloria Basáñez, Rory J Post, Belén Pedrique, Pierre-Marie Preux, Wilma A Stolk, Thomas B Nutman, Richard Idro
BACKGROUND: Recently, several epidemiological studies performed in Onchocerca volvulus-endemic regions have suggested that onchocerciasis-associated epilepsy (OAE) may constitute an important but neglected public health problem in many countries where onchocerciasis is still endemic. MAIN TEXT: On October 12-14th 2017, the first international workshop on onchocerciasis-associated epilepsy (OAE) was held in Antwerp, Belgium. The workshop was attended by 79 participants from 20 different countries...
March 22, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29571021/linalyl-acetate-prevents-olmesartan-induced-intestinal-hypermotility-mediated-by-interference-of-the-sympathetic-inhibitory-pathway-in-hypertensive-rat
#9
Soonho Kwon, Yu Shan Hsieh, You Kyoung Shin, Purum Kang, Geun Hee Seol
Olmesartan-associated enteropathy (OAE) is a life-threatening pathological condition, but its underlying mechanisms have not been elucidated. Although intestinal hypermotility is frequently accompanied by chronic diarrhea, there have been no studies of olmesartan-induced hypermotility. Intestinal motility should be well regulated by the enteric nervous system, but degeneration of enteric neurons has been reported in patients with chronic diarrheal diseases, such as irritable bowel syndrome, suggesting a connection between OAE and intestinal hypermotility...
March 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29542804/otoacoustic-emissions-versus-audiometry-in-monitoring-hearing-loss-after-long-term-noise-exposure-a-systematic-review
#10
Hiske W Helleman, Hilde Eising, Jacqueline Limpens, Wouter A Dreschler
Objectives The objective of this systematic review was to compare otoacoustic emissions (OAE) with audiometry in their effectiveness to monitor effects of long-term noise exposure on hearing. Methods We conducted a systematic search of MEDLINE, Embase and the non-MEDLINE subset of PubMed up to March 2016 to identify longitudinal studies on effects of noise exposure on hearing as determined by both audiometry and OAE. Results This review comprised 13 articles, with 30-350 subjects in the longitudinal analysis...
March 15, 2018: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/29507196/uranium-isotope-evidence-for-two-episodes-of-deoxygenation-during-oceanic-anoxic-event-2
#11
Matthew O Clarkson, Claudine H Stirling, Hugh C Jenkyns, Alexander J Dickson, Don Porcelli, Christopher M Moy, Philip A E Pogge von Strandmann, Ilsa R Cooke, Timothy M Lenton
Oceanic Anoxic Event 2 (OAE 2), occurring ∼94 million years ago, was one of the most extreme carbon cycle and climatic perturbations of the Phanerozoic Eon. It was typified by a rapid rise in atmospheric CO2 , global warming, and marine anoxia, leading to the widespread devastation of marine ecosystems. However, the precise timing and extent to which oceanic anoxic conditions expanded during OAE 2 remains unresolved. We present a record of global ocean redox changes during OAE 2 using a combined geochemical and carbon cycle modeling approach...
March 20, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29495742/efferent-induced-alterations-in-distortion-and-reflection-otoacoustic-emissions-in-children
#12
Srikanta K Mishra, Milan Biswal, Anup Amatya
The medial olivocochlear efferent fibers control outer hair cell responses and inhibit the cochlear-amplifier gain. Measuring efferent function is both theoretically and clinically relevant. In humans, medial efferent inhibition can be assayed via otoacoustic emissions (OAEs). OAEs arise by two fundamentally different mechanisms-nonlinear distortion and coherent reflection. Distortion and reflection emissions are typically applied in isolation for studying the efferent inhibition. Such an approach inadvertently assumes that efferent-induced shifts in distortion and reflection emissions provide redundant information...
February 2018: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29351047/otologic-disease-following-palatoplasty-in-international-cleft-palate-cohort
#13
Jeff Markey, Rebecca Maine, Kimberly Daniels, Emily Yang Yu, George Gregory, William Hoffman, Jorge Palacios
OBJECTIVE: Study the prevalence of otologic disease in a pediatric post-palatoplasty population with no prior ear tube placement in resource-deprived countries and assess patient characteristics associated with these abnormal results. DESIGN: Retrospective data review. PARTICIPANTS: Ecuadorian and Chinese children identified during humanitarian cleft lip and palate repair trips with cleft palates undergoing palatoplasty from 2007 to 2010. INTERVENTIONS: Tympanometry and otoacoustic emission (OAE) testing performed following palatoplasty...
February 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29336132/auditory-system-synchronization-and-cochlear-function-in-patients-with-normal-hearing-with-tinnitus-comparison-of-multiple-feature-with-longer-duration-and-single-feature-with-shorter-duration-tinnitus
#14
Sujoy Kumar Makar, Geetha Mukundan, Geeta Gore
OBJECTIVE: To observe cochlear and brainstem function in normal hearing ears with tinnitus using DPOAE and ABR audiometry. DESIGN: Case-control study. SAMPLE SIZE: Included 60 normal hearing male patients with age less than 45 years; control group consisted of 30 patients without tinnitus and the study group consisted of those with unilateral tinnitus of at least 6 month duration. Pure tone audiometry, tinnitus matching (pitch & loudness), DPOAE (SNR & Amplitude) and ABR results of absolute latency of wave I, III and V, with IPL difference of I-III, III-V & I-V, and ILD-V were investigated...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29322929/ontology-based-systematic-representation-and-analysis-of-traditional-chinese-drugs-against-rheumatism
#15
Qingping Liu, Jiahao Wang, Yan Zhu, Yongqun He
BACKGROUND: Rheumatism represents any disease condition marked with inflammation and pain in the joints, muscles, or connective tissues. Many traditional Chinese drugs have been used for a long time to treat rheumatism. However, a comprehensive information source for these drugs is still missing, and their anti-rheumatism mechanisms remain unclear. An ontology for anti-rheumatism traditional Chinese drugs would strongly support the representation, analysis, and understanding of these drugs...
December 21, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29282350/assessment-tools-for-use-in-patients-with-m%C3%A3-ni%C3%A3-re-disease-an-update
#16
Andrea Ciorba, Piotr Henryk Skarżyński, Virginia Corazzi, Chiara Bianchini, Claudia Aimoni, Stavros Hatzopoulos
A number of electrophysiological tests have been proposed for the initial diagnostic assessment or for the follow-up phase of patients affected by Ménière disease. The most common are: (i) vestibular evoked myogenic potentials (VEMPs); (ii) electrocochleography (ECochG); and (iii) otoacoustic emissions (OAEs). This paper presents the latest clinical developments with these 3 testing modalities. The PubMed, Embase, and Cinahl databases were searched from 2006 to December 2016. Full-text articles were obtained in cases where the title, abstract, or key words suggested that the study may be eligible for this review...
December 28, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29273792/timing-and-pacing-of-the-late-devonian-mass-extinction-event-regulated-by-eccentricity-and-obliquity
#17
David De Vleeschouwer, Anne-Christine Da Silva, Matthias Sinnesael, Daizhao Chen, James E Day, Michael T Whalen, Zenghui Guo, Philippe Claeys
The Late Devonian envelops one of Earth's big five mass extinction events at the Frasnian-Famennian boundary (374 Ma). Environmental change across the extinction severely affected Devonian reef-builders, besides many other forms of marine life. Yet, cause-and-effect chains leading to the extinction remain poorly constrained as Late Devonian stratigraphy is poorly resolved, compared to younger cataclysmic intervals. In this study we present a global orbitally calibrated chronology across this momentous interval, applying cyclostratigraphic techniques...
December 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/29236273/prognosticating-hearing-outcome-in-patients-with-idiopathic-sudden-sensorineural-hearing-loss-by-means-of-otoacoustic-emissions-and-auditory-brainstem-response
#18
Masoud Motasaddi Zarandy, Mohammad Taghi Ashtiani, Shahin Bastaninejad, Sasan Dabiri Satri, Sevil Nasirmohtaram, Nourullah Agha Ebrahimi
This is an analytic-descriptive study, parallel with a randomized, controlled trial performed at Amir'Alam Hospital, a tertiary referral center, with the aim of evaluating the correlation between otoacoustic emission (OAE) and auditory brainstem response (ABR) findings with hearing outcome after treatment of idiopathic sudden sensorineural hearing loss (SSNHL). Sixty patients with idiopathic SSNHL who presented to the emergency services and otology clinics between 2012 and 2014, and whose symptoms had begun <10 days previously, enrolled in this study...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29224768/newborn-hearing-screening-failure-and-maternal-factors-during-pregnancy
#19
Yehuda Schwarz, Gabriel N Kaufman, Sam J Daniel
OBJECTIVE: Temporary conductive hearing loss due to amniotic fluid accumulation in the middle ear cavity may lead to failure (false positive) in newborn hearing screening tests. The aim of this study was to identify whether amniotic fluid index has association with failure of the initial newborn otoacoustic emission (OAE) screening test. METHODS: A cohort study in a tertiary hospital center (Royal Victoria Hospital, Montréal) was constructed from 70 newborns that failed the OAE test, but passed a subsequent auditory brainstem response (ABR) test, and 75 randomly selected newborns that passed initial otoacoustic emission testing...
December 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29222679/-objective-audiometry-and-clinical-application
#20
M Cebulla, D Ehrmann-Müller, W Shehata-Dieler
Subjective and objective hearing tests are used for evaluation of hearing impairments. Objective methods include impedance measurement with tympanometry and stapedius reflex measurement, otoacoustic emissions (OAE), and auditory evoked potentials (AEP). Combined with statistical analysis, the introduction of auditory steady state responses (ASSR) has enabled objective hearing tests in newborn hearing screening and automated hearing threshold assessment. The type and degree of hearing loss can be determined using the abovementioned methods...
January 2018: HNO
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