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Asthma, spirometry in children

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https://www.readbyqxmd.com/read/29238123/epidemiology-triggers-and-severity-of-childhood-asthma-in-ilesa-nigeria-implications-for-management-and-control
#1
Bankole Peter Kuti, Kehinde Oluyori Omole
Background: Knowledge about childhood asthma in a locality will assist clinicians to adequately manage the condition. This study set out to report the epidemiology, triggers of exacerbation, comorbid conditions, and severity of childhood asthma at a tertiary health facility in Nigeria and the implication of these, in management and symptoms control. Methods: Over a 15-month study period, children (aged <15 years) with physician-diagnosed asthma were consecutively recruited at the pediatric chest clinic of the hospital...
January 2017: Nigerian Medical Journal: Journal of the Nigeria Medical Association
https://www.readbyqxmd.com/read/29231775/the-airway-hyperresponsiveness-to-methacholine-may-be-predicted-by-impulse-oscillometry-and-plethysmography-in-children-with-well-controlled-asthma
#2
Tugba Arıkoglu, Ayyuce Unlu, Didem Derici Yıldırım, Semanur Kuyucu
OBJECTIVE: Airway hyperresponsiveness (AHR) is a hallmark of asthma. Methacholine challenge test which is mostly used to confirm AHR is not routinely available. The aim of this study was to investigate the predictive values of fractional exhaled nitric oxide (FeNO), impulse oscillometry (IOS), and plethysmography for the assessment of AHR in children with well-controlled asthma. METHODS: 60 children with controlled allergic asthma aged 6-18 years participated in the study...
December 12, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29226507/age-is-the-only-predictor-of-small-decrease-in-lung-function-in-children-with-sickle-cell-anemia
#3
Shaina M Willen, Robyn Cohen, Mark Rodeghier, Fenella Kirkham, Susan S Redline, Carol Rosen, Jane Kirkby, Michael R DeBaun
The longitudinal pattern of lung function in children with sickle cell anemia (SCA) has shown a decrease in FEV1 % predicted, a risk factor for death in adults with SCA, but predictors for this decline are poorly characterized. In a prospective longitudinal multi-center cohort of children with SCA, we tested the hypotheses that: 1) FEV1 % predicted declines over time; and 2) SCA-specific characteristics and therapy predict this decline. At three clinical centers, children with SCA (HbSS or HbSβ0 thalassemia), unselected for respiratory disease, were enrolled in the Sleep and Asthma Cohort (SAC) study...
December 11, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29178471/methacholine-challenge-test-comparison-of-tidal-breathing-and-dosimeter-methods-in-children
#4
Ahlam Mazi, Larry C Lands, David Zielinski
INTRODUCTION: Methacholine Challenge Test (MCT) is used to confirm, assess the severity and/or rule out asthma. Two MCT methods are described as equivalent by the American Thoracic Society (ATS), the tidal breathing and the dosimeter methods. However, the majority of adult studies suggest that individuals with asthma do not react at the same PC20 between the two methods. Additionally, the nebulizers used are no longer available and studies suggest current nebulizers are not equivalent to these...
November 27, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29160411/spirometry-in-schoolchildren-for-field-studies-does-testing-on-different-days-change-the-result-of-the-exam
#5
Janaina Cristina Scalco, Rafaela Coelho Minsky, Camila Isabel Santos Schivinski
OBJECTIVE: To analyze if there is variation in the results of spirometry performed by healthy schoolchildren on different days. METHODS: Cross-sectional study with healthy schoolchildren aged 7 to 12 years old, in Florianópolis, Santa Catarina, Southern Brazil. Prepubescent children, non-athletes, born at full term, without cardiorespiratory, rheumatic, musculoskeletal, neurological and visual or hearing deficit were included. The child's health was assessed by a health questionnaire and by the survey International Study of Asthma and Allergies in Childhood...
November 13, 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/29152899/lung-function-after-extremely-preterm-birth-a-population-based-cohort-study-express
#6
Per Thunqvist, Ellen Tufvesson, Leif Bjermer, Anna Winberg, Vineta Fellman, Magnus Domellöf, Erik Melén, Mikael Norman, Jenny Hallberg
BACKGROUND AND OBJECTIVES: Follow-up studies of children and young adults born very-to-moderately preterm show persistent and significant lung function deficits. The aim of the study was to determine lung function and airway mechanics in school-aged children born in 2004 to 2007 and extremely preterm (after 22-26 weeks of gestation). METHODS: In a population-based cohort of children born extremely preterm and controls born at term (n = 350), follow-up at 6½-years-of-age was performed using spirometry and impulse oscillometry...
November 20, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29146272/obstruction-phenotype-as-a-predictor-of-asthma-severity-and-instability-in-children
#7
Ronald L Sorkness, Edward M Zoratti, Meyer Kattan, Peter J Gergen, Michael D Evans, Cynthia M Visness, Michelle Gill, Gurjit K Khurana Hershey, Carolyn M Kercsmar, Andrew H Liu, George T O'Connor, Jacqueline A Pongracic, Dinesh Pillai, Christine A Sorkness, Alkis Togias, Robert A Wood, William W Busse
BACKGROUND: Small airways instability, resulting in premature airway closure, has been recognized as a risk for asthma severity and poor control. Although spirometry has limited sensitivity for detecting small airway dysfunction, a focus on the air-trapping component of obstruction may identify a risk factor for asthma instability. OBJECTIVE: To use spirometric measurements to identify patterns of airway obstruction in children, and define obstruction phenotypes that relate to asthma instability...
November 13, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29143374/asthma-and-lung-function-in-adulthood-after-a-viral-wheezing-episode-in-early-childhood
#8
Katri Backman, Hertta Ollikainen, Eija Piippo-Savolainen, Kirsi Nuolivirta, Matti Korppi
BACKGROUND: Viral etiology of infection has a significant role in the long-term outcome of early-childhood wheezing. OBJECTIVE: This study examines asthma and lung function in adulthood after early-childhood wheezing induced by respiratory syncytial virus (RSV) and rhinovirus (RV). METHODS: A total of 100 children were hospitalized for a wheezing episode at less than 24 months of age from 1992 to 1993 in Kuopio University Hospital (Finland)...
November 16, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29106997/interferon-response-to-rsv-by-bronchial-epithelium-from-children-with-asthma-is-inversely-correlated-with-pulmonary-function
#9
M C Altman, S R Reeves, A R Parker, E Whalen, K M S Misura, K A Barrow, R G James, T S Hallstrand, S F Ziegler, J S Debley
BACKGROUND: Respiratory viral infection in early childhood, including that from respiratory syncytial virus (RSV), has been previously associated with the development of asthma. OBJECTIVE: We aimed to determine whether ex vivo RSV infection of bronchial epithelial cells (BECs) from children with asthma would induce specific gene expression patterns, and whether such patterns associate with lung function among BEC donors. METHODS: Primary BECs from carefully characterized children with asthma (n=18) and matched healthy children without asthma (n=8) were differentiated at an air-liquid interface (ALI) for 21 days...
October 26, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29101282/a-population-based-prospective-cohort-study-examining-the-influence-of-early-life-respiratory-tract-infections-on-school-age-lung-function-and-asthma
#10
Evelien R van Meel, Herman T den Dekker, Niels J Elbert, Pauline W Jansen, Henriëtte A Moll, Irwin K Reiss, Johan C de Jongste, Vincent W V Jaddoe, Liesbeth Duijts
BACKGROUND: Early-life respiratory tract infections could affect airway obstruction and increase asthma risk in later life. However, results from previous studies are inconsistent. OBJECTIVE: We examined the associations of early-life respiratory tract infections with lung function and asthma in school-aged children. METHODS: This study among 5197 children born between April 2002 and January 2006 was embedded in a population-based prospective cohort study...
November 3, 2017: Thorax
https://www.readbyqxmd.com/read/29094873/chronic-cough-evaluation-and-management
#11
REVIEW
Charlie Michaudet, John Malaty
Although chronic cough in adults (cough lasting longer than eight weeks) can be caused by many etiologies, four conditions account for most cases: upper airway cough syndrome, gastroesophageal reflux disease/laryngopharyngeal reflux disease, asthma, and nonasthmatic eosinophilic bronchitis. Patients should be evaluated clinically (with spirometry, if indicated), and empiric treatment should be initiated. Other potential causes include angiotensin-converting enzyme inhibitor use, environmental triggers, tobacco use, chronic obstructive pulmonary disease, and obstructive sleep apnea...
November 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/29083019/pulmonary-function-tests-leading-to-the-diagnosis-of-vascular-malformations-in-school-aged-children
#12
Beata Kusak, Ewa Cichocka-Jarosz, Urszula Jedynak-Wąsowicz, Grzegorz Lis
Vascular rings are congenital defects of great vessels. They cause compression of the trachea or/and the esophagus and therefore result in symptoms like inspiratory stridor, cough, wheezing, recurrent respiratory tract infections or dysphagia. In some cases, the correct diagnosis can be delayed for many years, especially when vascular rings produce less severe symptoms or symptoms mimicking other diseases (most of all asthma). In this article, we would like to emphasis the usefulness of pulmonary function test (spirometry) in the initial diagnosis of vascular rings in school-aged children, as well as the importance of spirometry in evaluating patients with asthma presumption...
October 30, 2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/29083017/pulmonary-prevention-program-in-the-proszowice-county-description-and-results
#13
Wojciech Skucha, Filip Mejza, Pawel Nastalek, Zbigniew Doniec
INTRODUCTION: In the Proszowice county, both lung cancer and chronic obstructive pulmonary disease (COPD) are more common in comparison with other regions of Poland. The purpose of this study was to provide a report on a prevention program carried out in the area to reduce the burden of COPD and lung cancer in the region. MATERIAL AND METHODS: The program consisted of the following: active prevention - questionnaire survey offered to every county inhabitant aged at least 40 and chest X-ray and spirometry performed in selected subjects; and passive prevention - covering multiple educational activities promoting healthy lifestyle...
October 30, 2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/29082668/breathomics-from-exhaled-volatile-organic-compounds-in-pediatric-asthma
#14
REVIEW
Anne H Neerincx, Susanne J H Vijverberg, Lieuwe D J Bos, Paul Brinkman, Marc P van der Schee, Rianne de Vries, Peter J Sterk, Anke-Hilse Maitland-van der Zee
Asthma is the most common chronic disease in children, and is characterized by airway inflammation, bronchial hyperresponsiveness, and airflow obstruction. Asthma diagnosis, phenotyping, and monitoring are still challenging with currently available methods, such as spirometry, FE NO or sputum analysis. The analysis of volatile organic compounds (VOCs) in exhaled breath could be an interesting non-invasive approach, but has not yet reached clinical practice. This review describes the current status of breath analysis in the diagnosis and monitoring of pediatric asthma...
December 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29066920/study-of-the-clinical-and-functional-characteristics-of-asthmatic-children-with-obstructive-sleep-apnea
#15
Yen Nguyen-Hoang, Thuy Nguyen-Thi-Dieu, Sy Duong-Quy
BACKGROUND AND OBJECTIVE: The obstructive sleep apnea (OSA) is a common respiratory disorder in children, especially those at preschool and school ages. This study aimed to describe the characteristics of asthmatic children with OSA and the symptoms for a high risk of OSA. SUBJECTS AND METHODS: It was a prospective and descriptive study. The data of asthmatic children including medical history, clinical examination, blood tests, spirometry, exhaled nitric oxide (NO), and respiratory polygraphy were registered for analyses...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29042809/implementation-of-gina-guidelines-in-asthma-management-by-primary-care-physicians-in-vietnam
#16
Vinh Nhu Nguyen, Quynh Nhat Nguyen, Pham Le An, Niels H Chavannes
BACKGROUND: Asthma control is suboptimal in Vietnam. Lack of knowledge of primary care physicians (PCPs) for asthma management may potentially be one of the causes. PURPOSE: The aim of this study was to assess the knowledge and practice of PCPs' asthma management based on the Global Initiative for Asthma (GINA) guidelines (2015 update). METHODS: A cross-sectional study with convenience sampling was conducted among PCPs in an urban and rural area of Vietnam using questionnaires related to asthma patients daily practice: use of spirometry and the asthma control test (ACT), prescription of asthma medications, and frequency of consultations...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/29037529/the-relationship-between-tobacco-smoke-exposure-and-airflow-obstruction-in-us-children-analysis-of-the-national-health-and-nutrition-examination-survey-2007-2012
#17
Stacey-Ann Whittaker Brown, Bian Liu, Emanuela Taioli
BACKGROUND: It has been difficult to determine the individual impact of prenatal and postnatal childhood tobacco smoke exposure (TSE) on childhood lung function, as children are often exposed to both. OBJECTIVE: The goal of this study was to determine the association between current TSE, as measured by using serum cotinine levels, and airflow obstruction (defined as the ratio of FEV1/FVC less than the lower limit of normal) while adjusting for self-reported prenatal TSE...
October 14, 2017: Chest
https://www.readbyqxmd.com/read/29037303/prevalence-and-impact-of-asthma-among-school-aged-students-in-lima-peru
#18
M Martin, T Sauer, J A Alarcon, J Vinoles, E C Walter, T G Ton, J Zunt
SETTING AND OBJECTIVE: The International Study of Asthma and Allergies in Childhood (ISAAC) reported asthma prevalence in Peru to be among the highest in the world. We assessed the prevalence and morbidity of self-reported asthma in an underserved, peri-urban area of Lima, Peru, with limited medical access. DESIGN: The study was conducted in the outskirts of Lima from March to May 2011. Five hundred children aged 6-18 years were selected through cluster sampling...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29034296/diagnosis-of-asthma-in-symptomatic-children-based-on-measures-of-lung-function-an-analysis-of-data-from-a-population-based-birth-cohort-study
#19
Clare Murray, Philip Foden, Lesley Lowe, Hannah Durrington, Adnan Custovic, Angela Simpson
BACKGROUND: Concerns have been expressed about asthma overdiagnosis. The UK National Institute of Health and Care Excellence (NICE) proposed a new diagnostic algorithm applying four lung function measures sequentially (ratio of forced expiratory volume in 1 s [FEV1] to forced vital capacity [FVC] <70%, bronchodilator reversibility ≥12%, fractional exhaled nitric oxide [FeNO] ≥35 parts per billion, and peak expiratory flow variability >20%). We aimed to assess the diagnostic value of three of the tests individually, and then test the proposed algorithm in symptomatic children...
October 2017: Lancet Child & Adolescent Health
https://www.readbyqxmd.com/read/28993393/recurrent-wheeze-and-its-relationship-with-lung-function-and-airway-inflammation-in-preschool-children-a-cross-sectional-study-in-south-korea
#20
Ji Eun Soh, Kyung-Moon Kim, Ji-Won Kwon, Hyung Young Kim, Ju-Hee Seo, Hyo-Bin Kim, So-Yeon Lee, Gwang-Cheon Jang, Dae-Jin Song, Woo Kyung Kim, Young-Ho Jung, Soo-Jong Hong, Jung Yeon Shim
BACKGROUND: Relationship between recurrent wheeze and airway function and inflammation in preschool children is not fully known. OBJECTIVE: To investigate the relationship between recurrent wheeze and airway inflammation, lung function, airway hyper-reactivity (AHR) and atopy in preschool children. DESIGN: Observational study, comparing forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and mid-forced expiratory flow (FEF25%-75%), dose-response slope (DRS), exhaled nitric oxide (eNO) and atopic sensitisation between children with recurrent wheeze and those without...
October 8, 2017: BMJ Open
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