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Savinda Liyanagedara, Robert McLeod, Hassan A Elhassan
Exercise induced laryngeal obstruction (EILO) is a condition where inappropriate vocal cord or glottic closure occurs during exercise. This review of the literature provides an overview of the current understanding of the definition, epidemiology, diagnosis and management of EILO. Using The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines the Cochrane, Embase, Ovid MEDLINE and PubMed databases were searched. Four search domains "exercise", "induced", "laryngeal" and "obstruction" were used...
October 11, 2016: European Archives of Oto-rhino-laryngology
Frederik Buchvald, Lue Drasbaek Phillipsen, Thomas Hjuler, Kim G Nielsen
BACKGROUND AND AIMS: Exercise-induced inspiratory symptoms (EIIS) have multiple causes, one of which is exercise-induced laryngeal obstruction (EILO). There is limited knowledge regarding EIIS in children, both in primary care practices and in pediatric asthma clinics. The aim of this study was to describe the feasibility of a diagnostic methodology and its results in a cohort of children with EIIS referred to our tertiary pediatric pulmonary center. METHODS: This study analyzed consecutively collected data in children from East Denmark and Greater Copenhagen referred during a 3½ years period...
November 2016: Pediatric Pulmonology
Emil Schwarz Walsted, James H Hull, Asger Sverrild, Celeste Porsbjerg, Vibeke Backer
Introduction Exercise-induced laryngeal obstruction (EILO) is a key differential diagnosis for asthma in the presence of exertional respiratory symptoms. Continuous laryngoscopy during exercise (CLE), the current gold standard diagnostic test for EILO, has practical limitations. We aimed to establish if inspiratory flow data obtained during standard bronchoprovocation testing, to establish the presence of extra-thoracic hyper-responsiveness, may prove diagnostic for EILO and thus preclude requirement for CLE testing...
June 10, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Enrico Heffler, Matteo Bonini, Luisa Brussino, Paolo Solidoro, Giuseppe Guida, Monica Boita, Giuliana Nicolosi, Caterina Bucca
Exercise-induced dyspnea is common among adolescents and young adults and often originates from exercise-induced bronchoconstriction (EIB). Sometimes, dyspnea corresponds to exercise-induced laryngospasm (EILO), which is a paradoxical decrease in supraglottic/glottic area. Vitamin D deficiency, which occurs frequently at northern latitudes, might favor laryngospasm by impairing calcium transport and slowing striate muscle relaxation. The aim of this study was to evaluate whether vitamin D status has an influence on bronchial and laryngeal responses to exercise in young, healthy athletes...
July 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Camilla Slot Mehlum, Emil Schwarz Walsted, Christian Godballe, Vibeke Backer
Breathing difficulties during exertion may be caused by exercise-induced laryngeal obstruction (EILO). The diagnosis depends on visualization of the larynx during exercise, i.e. by continuous laryngoscopic exercise (CLE) test. In case of severe supraglottic collapse and pronounced symptoms during strenuous exertion, surgical treatment (supraglottoplasty) has been suggested. The aims of this study were to evaluate outcome and patient satisfaction after supraglottoplasty for EILO and to compare our results with previously reported data...
April 2016: European Archives of Oto-rhino-laryngology
Henrik Johansson, Katarina Norlander, Lars Berglund, Christer Janson, Andrei Malinovschi, Lennart Nordvall, Leif Nordang, Margareta Emtner
BACKGROUND: Exercise-induced respiratory symptoms are common among adolescents. Exercise is a known stimulus for transient narrowing of the airways, such as exercise-induced bronchoconstriction (EIB) and exercise-induced laryngeal obstruction (EILO). Our aim was to investigate the prevalence of EIB and EILO in a general population of adolescents. METHODS: In this cross-sectional study, a questionnaire on exercise-induced dyspnoea was sent to all adolescents born in 1997 and 1998 in Uppsala, Sweden (n=3838)...
January 2015: Thorax
B Panchasara, C Nelson, R Niven, S Ward, J H Hull
Exercise-induced laryngeal obstruction (EILO) is a key differential diagnosis for unexplained dyspnoea in athletes. The gold standard means for diagnosis of EILO is direct laryngoscopy, performed continuously, while an athlete undertakes the specific sport that precipitates their symptoms. This report provides the first descriptions of rowing-associated EILO in two competitive rowers presenting with unexplained dyspnoea and cough. The report describes the methodology and safety of the use of continuous laryngoscopy in the context of maximal rowing ergometry and the use of this technique as a therapeutic tool to provide biofeedback...
January 2015: Thorax
Ola Drange Røksund, John-Helge Heimdal, Jan Olofsson, Robert Christiaan Maat, Thomas Halvorsen
Exercise-induced shortness of breath is not uncommon in otherwise healthy young people. Based on the presenting symptoms alone, it is challenging to distinguish exercise-induced asthma (EIA) from exercise-induced obstruction of central airways, sometimes leading to diagnostic errors and inadequate treatment. Central airway obstruction usually presents with exercise-induced inspiratory symptoms (EIIS) during ongoing exercise. EIIS tends to peak towards the end of an exercise session or immediately after its completion, contradicting symptoms of EIA typically peaking 3-15 min after the exercise has stopped...
September 2015: European Archives of Oto-rhino-laryngology
S Miller, M Jungheim, C Schwemmle, S Schoof, M Ptok
UNLABELLED: Inducible Laryngeal Obstruction vs. Bronchial -Asthma Background: Inducible laryngeal obstructions (ILO) represent paroxysmal and sometimes severe dyspnea caused by different factors. Symptomatically ILO resembles bronchial asthma and is therefore often misdiagnosed. In the following 3 cases regarding a special type of ILO, the exercise induced laryngeal obstruction (EILO) will be presented. It will also be demonstrated, how EILO can be diagnosed and differentiated from bronchial asthma...
October 2014: Laryngo- Rhino- Otologie
Cecilie Kyrø, Anja Olsen, Rikard Landberg, Guri Skeie, Steffen Loft, Per Åman, Max Leenders, Vincent K Dik, Peter D Siersema, Tobias Pischon, Jane Christensen, Kim Overvad, Marie-Christine Boutron-Ruault, Guy Fagherazzi, Vanessa Cottet, Tilman Kühn, Jenny Chang-Claude, Heiner Boeing, Antonia Trichopoulou, Christina Bamia, Dimitrios Trichopoulos, Domenico Palli, Vittorio Krogh, Rosario Tumino, Paolo Vineis, Salvatore Panico, Petra H Peeters, Elisabete Weiderpass, Toril Bakken, Lene Angell Åsli, Marcial Argüelles, Paula Jakszyn, María-José Sánchez, Pilar Amiano, José María Huerta, Aurelio Barricarte, Ingrid Ljuslinder, Richard Palmqvist, Kay-Tee Khaw, Nick Wareham, Timothy J Key, Ruth C Travis, Pietro Ferrari, Heinz Freisling, Mazda Jenab, Marc J Gunter, Neil Murphy, Eilo Riboli, Anne Tjønneland, H B as Bueno-de-Mesquita
BACKGROUND: Few studies have investigated the association between whole-grain intake and colorectal cancer. Because whole-grain intake estimation might be prone to measurement errors, more objective measures (eg, biomarkers) could assist in investigating such associations. METHODS: The association between alkylresorcinols, biomarkers of whole-grain rye and wheat intake, and colorectal cancer incidence were investigated using prediagnostic plasma samples from colorectal cancer case patients and matched control subjects nested within the European Prospective Investigation into Cancer and Nutrition...
January 2014: Journal of the National Cancer Institute
Pernille M Christensen, Niels Rasmussen
Exercise-induced laryngeal obstructions (EILOs) cause exercise-related respiratory symptoms (ERRS) and are important differential diagnoses to exercise-induced asthma. The diagnostic method for EILOs includes provocation to induce the obstruction followed by a verification of the obstruction and the degree thereof. The objective of the present study was to examine if a eucapnic voluntary hyperventilation (EVH) test could induce laryngeal obstructions laryngoscopically identical in subtypes and development as seen during an exercise test...
November 2013: European Archives of Oto-rhino-laryngology
Emil Walsted Nielsen, James H Hull, Vibeke Backer
INTRODUCTION: Unexplained respiratory symptoms reported by athletes are often incorrectly considered secondary to exercise-induced asthma. We hypothesized that this may be related to exercise-induced laryngeal obstruction (EILO). This study evaluates the prevalence of EILO in an unselected cohort of athletes. METHODS: We retrospectively reviewed the prevalence of EILO in a cohort of athletes (n = 91) referred consecutively during a 2-yr period for asthma workup including continuous laryngoscopy during exercise (CLE) testing...
November 2013: Medicine and Science in Sports and Exercise
Mohammad J Hossain, Kh S Rahman, Jeffery S Terhune, Mark R Liles
Bacteriophages ΦeiAU and ΦeiDWF are lytic to the catfish pathogen Edwardsiella (Edw.) ictaluri. The Edw. ictaluri host factors that modulate phage-host interactions have not been described previously. This study identified eleven unique Edw. ictaluri host factors essential for phage infection by screening a transposon mutagenized library of two Edw. ictaluri strains for phage-resistant mutants. Two mutants were isolated with independent insertions in the ompLC gene that encodes a putative outer membrane porin...
February 2012: Microbiology
Robert Christiaan Maat, Magnus Hilland, Ola Drange Røksund, Thomas Halvorsen, Jan Olofsson, Hans Jørgen Aarstad, John-Helge Heimdal
The current follow-up study concerning the supraglottic type of exercise-induced laryngeal obstruction (EILO) was performed to reveal the natural history of supraglottic EILO and compare the symptoms, as well as the laryngeal function in conservatively versus surgically treated patients. A questionnaire-based survey was conducted 2-5 years after EILO was diagnosed by a continuous laryngoscopy exercise (CLE) test in 94 patients with a predominantly supraglottic obstruction. Seventy-one patients had been treated conservatively and 23 with laser supraglottoplasty...
October 2011: European Archives of Oto-rhino-laryngology
Pernille M Christensen, S F Thomsen, N Rasmussen, V Backer
Respiratory difficulties caused by exercise-induced laryngeal obstructions (EILOs) are reported with increasing frequency. The aim of this study was to assess the prevalence and symptoms of EILOs and their relation to airway hyperresponsiveness (AHR). In total, 556 randomly selected youths in Copenhagen aged 14-24 years were invited over a 2-year period. The study included a mailed questionnaire and two visits: day 1 (an interview-based questionnaire, methacholine bronchial provocation test and physical exertion test); and day 2 [an exercise test with continuous laryngoscopic recordings (CLE test)]...
September 2011: European Archives of Oto-rhino-laryngology
Julia W Pridgeon, Riccardo Russo, Craig A Shoemaker, Phillip H Klesius
Using PCR-select subtractive cDNA hybridization technique, 41 in vitro expressed sequence tags (ESTs) were isolated from a modified live vaccine strain (AQUAVAC-ESC, formerly RE-33) vs a virulent parent strain (EILO) of Edwardsiella ictaluri. Transcriptional levels of the 41 in vitro ESTs in the vaccine strain and the virulent strain were then evaluated by quantitative PCR (qPCR). The qPCR results revealed that 33 ESTs were consistently upregulated at least 3-fold in the modified live vaccine strain compared to the virulent parent strain...
December 2010: Comparative Immunology, Microbiology and Infectious Diseases
Martin Böhmer, Qui Van, Ingo Weyand, Volker Hagen, Michael Beyermann, Midori Matsumoto, Motonori Hoshi, Eilo Hildebrand, Ulrich Benjamin Kaupp
The events that occur during chemotaxis of sperm are only partly known. As an essential step toward determining the underlying mechanism, we have recorded Ca2+ dynamics in swimming sperm of marine invertebrates. Stimulation of the sea urchin Arbacia punctulata by the chemoattractant or by intracellular cGMP evokes Ca2+ spikes in the flagellum. A Ca2+ spike elicits a turn in the trajectory followed by a period of straight swimming ('turn-and-run'). The train of Ca2+ spikes gives rise to repetitive loop-like movements...
August 3, 2005: EMBO Journal
Mithridade Davarpanah, Mihaela Caraman, Serge Szmukler-Moncler, Boris Jakubowicz-Kohen, Gil Alcolforado
PURPOSE: This article provides preliminary clinical results on the Osseotite NT implant, which was developed to simplify surgical procedure and cover an extended range of indications. Placement characteristics of NT and standard Osseotite implants were also compared in an in vitro study. MATERIALS AND METHODS: The in vitro placement characteristics of NT and standard Osseotite implants of 4.0 mm diameter and 8.5 to 15 mm in length were compared. In addition, a total of 182 NT implants (96 maxillary and 86 mandibular) were placed in 92 patients; of these, 87...
May 2005: International Journal of Oral & Maxillofacial Implants
Johannes Solzin, Annika Helbig, Qui Van, Joel E Brown, Eilo Hildebrand, Ingo Weyand, U Benjamin Kaupp
Chemotaxis of sperm is an important step toward fertilization. During chemotaxis, sperm change their swimming behavior in a gradient of the chemoattractant that is released by the eggs, and finally sperm accumulate near the eggs. A well established model to study chemotaxis is the sea urchin Arbacia punctulata. Resact, the chemoattractant of Arbacia, is a peptide that binds to a receptor guanylyl cyclase. The signaling pathway underlying chemotaxis is still poorly understood. Stimulation of sperm with resact induces a variety of cellular events, including a rise in intracellular pH (pHi) and an influx of Ca2+; the Ca2+ entry is essential for the chemotactic behavior...
August 2004: Journal of General Physiology
C R Arias, C A Shoemaker, J J Evans, P H Klesius
The biological properties of Edwardsiella ictaluri RE-33 rifampicin-mutant and its parent strain EILO were analysed. RE-33 is an avirulent isolate used as a modified live vaccine against enteric septicaemia of catfish. Electrophoretic analysis of lipopolysaccharide (LPS) patterns showed high homology between both isolates. Further characterization of LPS by immunoblotting revealed the main differences in LPS composition. The RE-33 isolate lacks the high molecular weight bands of LPS (HMW-LPS). Outer membrane protein analysis also showed some immunological differences between RE-33 and the EILO parent strain...
July 2003: Journal of Fish Diseases
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