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impulse oscillometry

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https://www.readbyqxmd.com/read/29660251/the-association-of-nasal-patency-with-small-airway-resistance-in-children-with-allergic-and-nonallergic-rhinitis
#1
Joo Young Song, Eun Kyo Ha, Yoon Ho Sheen, Mi-Ae Kim, Seung Won Lee, Jung Won Yoon, Seung Jin Lee, Young-Ho Jung, Kyung Suk Lee, Jae-Cheul Ahn, Hye Mi Jee, Man Yong Han
INTRODUCTION: Allergic rhinitis (AR) is immunologically and morphologically related to disorders in the lower airway. We investigated the relationship between the anatomy of the intranasal cavity and small airway resistance in subjects with nonallergic rhinitis (NAR). METHODS: We enrolled 226 children who were 7 years old and participated in the Seongnam Atopy Project 2016. We evaluated nasal patency using acoustic rhinometry to measure the volume of the nasal cavity at 0 to 5 cm, and measured lung function of the lower airway using an impulse oscillometry system (IOS) and spirometry...
April 16, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29627402/role-of-the-impulse-oscillometry-in-the-evaluation-of-tracheal-stenosis
#2
R Linhas, F Lima, D Coutinho, J Almeida, S Neves, A Oliveira, I Ladeira, R Lima, S Campainha, M Guimarães
INTRODUCTION AND OBJECTIVES: Tracheal stenosis is a rare and challenging disease. Bronchoscopy is the gold standard for diagnosis and assessment but brings inherent risks. Spirometry is commonly used to access obstructions but is not always feasible due to patient related factors. We therefore considered impulse oscillometry (IOS) as a non-invasive method to quantify airway obstruction and its potential use for diagnosis and follow-up of tracheal stenosis. MATERIALS AND METHODS: Patients with confirmed tracheal stenosis were recruited between January 1st, 2015 and December 31st, 2016...
April 4, 2018: Pulmonology
https://www.readbyqxmd.com/read/29611767/impulse-oscillometry-and-nitrogen-washout-test-in-the-assessment-of-small-airway-dysfunction-in-asthma-correlation-with-quantitative-computed-tomography
#3
Leonello Fuso, Giuseppe Macis, Carola Condoluci, Martina Sbarra, Chiara Contu, Emanuele G Conte, Giulia Angeletti, Paolo Montuschi
OBJECTIVE: Small airway dysfunction (SAD) and airway remodeling influence the disease control and progression in asthma. We investigated whether impulse oscillometry (IOS) and single breath nitrogen washout (SBN2 W) could be reliable tests in evaluating SAD and airway remodeling by correlating their data with radiological parameters derived from quantitative chest multidetector computed tomography (MDCT) imaging. METHODS: Lung function tests were performed before and after bronchodilator...
April 3, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29564775/airway-obstruction-in-sleep-apnea-patients
#4
Magdalena Kostrzewska, Tomasz Trafas, Barbara Bromińska, Halina Batura-Gabryel, Sławomir Michalak, Beata Brajer-Luftmann, Agata Nowicka, Marcin Grabicki, Przemysław Guzik, Tomasz Piorunek
Obstructive sleep apnea (OSA) is a condition of breathing pathology occurring during sleep, characterized by repeated episodes of upper airway obstruction. The aim of the study was to determine the occurrence of airway obstruction in smoking males with OSA in whom lung function tests had not been performed before. One hundred and four current smokers selected from 1241 patients were enrolled for the research. The subjects included in the study smoked minimum 20 cigarettes a day for at least 10 years. The diagnosis of OSA was confirmed by polysomnography (PSG) in the Sleep Laboratory and subjects were assigned to one of three groups, depending on the severity of OSA...
March 22, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29549705/early-detection-of-airway-obstruction-by-impulse-oscillometry-system-in-methacholine-challenge-testing-in-preschool-children
#5
Jung Won Yoon, Youn Ho Sheen, Eun Kyo Ha, Ji Hyun Baek, Hey Sung Baek, Sun Hee Choi, Man Yong Han
BACKGROUND: Small airway hyperresponsiveness is a critical aspect in preschool children with asthmatic symptoms interms of asthma control. The aim of this study was to elucidate the relationship of changes in reactance (Xrs) and resistance (Rrs) of IOS and FEV1 with those in clinical parameters and to determine which IOS parameter is correlated with bronchial hyperresponsiveness before positive clinical endpoints. METHODS: We performed the methacholine challenge test in ninety-four preschool children (4...
March 12, 2018: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/29522812/abnormal-lung-function-at-preschool-age-asthma-in-adolescence
#6
Katariina Lajunen, Satu Kalliola, Anne Kotaniemi-Syrjänen, Seppo Sarna, L Pekka Malmberg, Anna S Pelkonen, Mika J Mäkelä
BACKGROUND: Asthma often begins early in childhood. However, the risk for persistence is challenging to evaluate. OBJECTIVE: This longitudinal study relates lung function assessed with impulse oscillometry (IOS) in preschool children to asthma in adolescence. METHODS: Lung function was measured with IOS in 255 children with asthma-like symptoms aged 4-7 years. Baseline measurements were followed by exercise challenge and bronchodilation tests...
March 6, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29501245/forty-years-of-reference-values-for-respiratory-system-impedance-in-adults-1977-2017
#7
REVIEW
Or Kalchiem-Dekel, Stella E Hines
OBJECTIVE: To provide an evidence-based review of published data regarding normal range reference values and prediction equations for measurements of respiratory impedance using forced oscillation technique (FOT) and impulse oscillometry (IOs) in adults. METHODS: A non-language-restricted search was performed using forced oscillation technique and impulse oscillometry as primary terms. Original research studies reporting respiratory system impedance reference values or prediction equations based on cohorts of ≥100 healthy adults were included...
March 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29487095/the-influence-of-different-mouthpieces-on-impulse-oscillometry-results
#8
Gustavo Henrique Dionísio, Daniele Oliveira Dos Santos, Larissa Perossi, Mayara Holtz de Paula, Hugo Celso Dutra de Souza, Ada Clarice Gastaldi
BACKGROUND: Impulse oscillometry is a method of airway assessment and diagnosis that provides data on lung mechanics. In the literature, studies have used different types of mouthpieces or did not describe the model used for the tests. We sought to compare the 3 most commonly described mouthpieces in terms of test results, comfort, and subject preference. METHODS: Thirty-nine healthy volunteers were evaluated with spirometry and impulse oscillometry, assessing the resistance at 5 Hz and 20 Hz (R5 and R20, respectively), reactance at 5 Hz (X5), reactance area, and resonant frequency...
February 27, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29484853/impulse-oscillometry-at-preschool-age-is-a-strong-predictor-of-lung-function-by-flow-volume-spirometry-in-adolescence
#9
Eero Lauhkonen, Riikka Riikonen, Sari Törmänen, Petri Koponen, Kirsi Nuolivirta, Merja Helminen, Jyri Toikka, Matti Korppi
BACKGROUND: The transition from early childhood wheezing to persistent asthma is linked to lung function impairment over time. Little is known how the methods used to study lung function at different ages correlate longitudinally. METHODS: Sixty-four children with a history of hospitalization for bronchiolitis before 6 months of age were prospectively studied with impulse oscillometry (IOS) at the mean age of 6.3 years and these preschool IOS results were compared with flow-volume spirometry (FVS) measurements at mean age of 11...
February 27, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29481513/the-relationship-between-cephalogram-analysis-and-oxygen-desaturation-index-during-sleep-in-patients-submitted-for-mandibular-setback-surgery
#10
Khaled Gamal Dahy, Katsu Takahashi, Kazuyuki Saito, Azumi Kakeno, Honoka Kiso, Yu Isobe, Sayaka Mishima, Keita Asai, Abd-Elmateen Moussa, Badawy Shahat, Ibrahim Rezk, Toru Oga, Satoshi Morita, Kazuo Chin, Kazuhisa Bessho
OBJECTIVES: The aim of this study was to examine the relationship between morphologic factors of mandibular protrusion patients and clinical indices of obstructive sleep apnea (OSA). METHODS: Fifty-two Japanese patients divided into 2 groups: 1 jaw surgery group (30 patients) and 2 jaw surgery group (22 patients). Morphologic changes were studied using cephalograms taken before surgery and 1 year after surgery. Functional changes studied using impulse oscillometry and pulse oximetry during sleep, both of which are clinically useful measures in assessing OSA, taken before surgery and 1 year after surgery...
February 23, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29449165/spirometry-and-impulse-oscillometry-in-preschool-children-acceptability-and-relationship-to-maternal-smoking-in-pregnancy
#11
Meyer Kattan, Leonard B Bacharier, George T O'Connor, Robyn Cohen, Ronald L Sorkness, Wayne Morgan, Peter J Gergen, Katy F Jaffee, Cynthia M Visness, Robert A Wood, Gordon R Bloomberg, Susan Doyle, Ryan Burton, James E Gern
BACKGROUND: Comparisons of the technical acceptability of spirometry and impulse oscillometry (IOS) and clinical correlations of the measurements have not been well studied in young children. There are no large studies focused on African American and Hispanic children. OBJECTIVES: We sought to (1) compare the acceptability of spirometry and IOS in 3- to 5-year-old children and (2) examine the relationship of maternal smoking during pregnancy to later lung function...
February 13, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29443739/effects-of-exercise-on-secretion-transport-inflammation-and-quality-of-life-in-patients-with-noncystic-fibrosis-bronchiectasis-protocol-for-a-randomized-controlled-trial
#12
Daniele Oliveira Dos Santos, Hugo Celso Dutra de Souza, José Antônio Baddini-Martinez, Ercy Mara Cipulo Ramos, Ada Clarice Gastaldi
BACKGROUND: Bronchiectasis is characterized by pathological and irreversible bronchial dilatation caused by the inefficient mucus and microorganism clearance and progression of inflammatory processes. The most frequent characteristic is the increase in bronchial mucus production resulting in slower transport and damage to the mucociliary transport. AIMS: To evaluate the effects of exercise on mucus transport, inflammation, and resistance of the respiratory and autonomic nervous systems and subsequent effects on quality of life in patients with bronchiectasis who are enrolled in a pulmonary rehabilitation program...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29438818/small-and-large-airway-reactions-to-osmotic-stimuli-in-asthma-and-chronic-idiopathic-cough
#13
Ewa-Lena Johansson, Ewa Ternesten-Hasséus, Per Gustafsson, Teet Pullerits, Monica Arvidsson, Eva Millqvist
BACKGROUND: Chronic cough is a common symptom and related to several pulmonary, airway and heart diseases. When all likely medical explanations for the coughing are excluded, there remains a large group of patients with chronic coughing, which is mostly a cough reflex easily triggered by environmental irritants and noxious stimuli. The main aim of this study was to improve the diagnostic ability to differentiate chronic idiopathic cough (CIC) from asthma. METHODS: Twenty-three patients with CIC, 16 patients with mild asthma and 21 control participants were included...
February 10, 2018: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29425367/a-rapid-handheld-device-to-assess-respiratory-resistance-clinical-and-normative-evidence
#14
Aaron B Holley, Wesley D Boose, Michael Perkins, Karen L Sheikh, Nancy P Solomon, Angela M Dietsch, Jafar Vossoughi, Arthur T Johnson, Jacob F Collen
Introduction: Following reports of respiratory symptoms among service members returning from deployment to South West Asia (SWA), an expert panel recommended pre-deployment spirometry be used to assess disease burden. Unfortunately, testing with spirometry is high cost and time-consuming. The airflow perturbation device (APD) is a handheld monitor that rapidly measures respiratory resistance (APD-Rr) and has promising but limited clinical data. Its speed and portability make it ideally suited for large volume pre-deployment screening...
February 7, 2018: Military Medicine
https://www.readbyqxmd.com/read/29424024/impulse-oscillometry-measurement-of-distal-airways-obstruction-in-depleted-uranium-exposed-gulf-war-veterans
#15
Stella E Hines, Ashley H Barnes, Clayton Brown, Patricia Gucer, Marc S Oliver, Joanna M Gaitens, Marian Condon, Melissa McDiarmid
INTRODUCTION: A cohort of Gulf War I veterans who sustained exposure to depleted uranium undergoes biennial surveillance for potential uranium-related health effects. We performed impulse oscillometry and hypothesized that veterans with higher uranium body burdens would have more obstructive abnormalities than those with lower burdens. METHODS: We compared pulmonary function of veterans in high versus low urine uranium groups by evaluating spirometry and oscillometry values...
February 9, 2018: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/29394172/the-emerging-spectrum-of-exposure-related-bronchiolitis
#16
Silpa D Krefft, Carlyne D Cool, Cecile S Rose
PURPOSE OF REVIEW: Exposure-related bronchiolitis is increasingly recognized as an important but challenging clinical diagnosis. Acute and chronic inhalational exposures are associated with variable clinical presentations and a spectrum of histopathologic abnormalities affecting the small airways. This review provides an overview of the histologic patterns and occupational settings for exposure-related bronchiolitis, along with recent advances in disease diagnosis and management. RECENT FINDINGS: The entire histopathologic spectrum of bronchiolitis (constrictive, obliterative, proliferative, lymphocytic, respiratory) has been reported in exposure-related bronchiolitis...
April 2018: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29382799/body-mass-index-status-and-peripheral-airway-obstruction-in-school-age-children-a-population-based-cohort-study
#17
Sandra Ekström, Jenny Hallberg, Inger Kull, Jennifer L P Protudjer, Per Thunqvist, Matteo Bottai, Per Magnus Gustafsson, Anna Bergström, Erik Melén
BACKGROUND: Few large prospective studies have investigated the impact of body mass index (BMI) on lung function during childhood. METHODS: Using data collected between 2002 and 2013, we analysed associations between BMI status and lung function (assessed by spirometry) from 8 to 16 years, as well as cross-sectional associations with small airway function (impulse oscillometry) at 16 years in the BAMSE cohort (n=2889). At 16 years, cross-sectional associations with local and systemic inflammation were investigated by analysing FENO, blood eosinophils and neutrophils...
January 29, 2018: Thorax
https://www.readbyqxmd.com/read/29353510/effects-of-passive-smoking-on-lung-function-tests-in-preschool-children-born-late-preterm-a-preventable-health-priority
#18
Ayla Gunlemez, İlkay Er, Canan Baydemir, Ayse Arisoy
OBJECTIVE: Late-preterm delivery is known to be associated with potential adverse effects on lung development. Passive smoking may result in alterations of pulmonary function in infants born late-preterm. Impulse oscillometry (IOS) is a noninvasive, rapid, and practicable technique that can assess lung function. This study aimed to evaluate the effect of passive smoking on lung function tests in preschool children born late-preterm using IOS. METHODS: The study population consisted of a total of 139 children between 3 and 7 years of age born late-preterm who were being followed-up at our outpatient unit at the time of study period...
February 1, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29331617/asthma-predictive-index-in-relation-to-respiratory-mechanics-by-impulse-oscillometry-in-recurrent-wheezers
#19
T Arikoglu, S B Batmaz, D D Yildirim, Ö Tezol, G Bozlu, S Kuyucu
BACKGROUND: The identification of children who will have persistent asthma has become a focus of recent research. The aim of this study was to assess whether impulse oscillometry (IOS) has a diagnostic value to predict modified API (asthma predictive index) in pre-schoolers with recurrent wheezing. METHODS: Pre-school children aged 3-6 years with recurrent wheezing were enrolled. The study population was divided into two groups based on mAPI criteria. Lung function was assessed by IOS...
March 2018: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29308548/management-of-recurrent-preschool-doctor-diagnosed-wheeze
#20
REVIEW
Ka-Ka Siu, Shuk-Yu Leung, Sum-Yi Kong, Daniel Kwok-Keung Ng
Preschool wheeze occurs in half of the children before they reach 6 y of age and recurrence is also common. Recurrent preschool wheeze is classified as either typical or atypical. For typical recurrent preschool wheeze, the diagnoses are either asthma or bronchiolitis/bronchitis. Responsiveness to a properly administered bronchodilator confirms asthma, atopic or otherwise. All atypical preschool wheeze should be referred to pediatric respirologist for assessment. Lung function test by impulse oscillometry (IOS) before and after bronchodilator is helpful to confirm airway hyperresponsiveness, an essential feature of asthma...
January 8, 2018: Indian Journal of Pediatrics
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