Results 1 to 10 of about 4,070 (126)

Quantifying the shape of maximal expiratory flow-volume curves in healthy humans and asthmatic patients. [PDF]

Respir Physiol Neurobiol, 2016
Differences in the absolute flow and volume of maximal expiratory flow-volume (MEFV) curves have been studied extensively in health and disease. However, the shapes of MEFV curves have received less attention. We questioned if the MEFV curve shape was associated with (i) expiratory flow limitation (EFL) in health and (ii) changes in bronchial caliber ...
Dominelli PB, Molgat-Seon Y, Foster GE, Dominelli GS, Haverkamp HC, Henderson WR, Sheel AW.   +6 more
europepmc   +5 more sources

Analysis of maximal expiratory flow-volume curves in adult survivors of preterm birth. [PDF]

Am J Physiol Regul Integr Comp Physiol, 2019
Adult survivors of very preterm (≤32 wk gestational age) birth without (PRE) and with bronchopulmonary dysplasia (BPD) have variable degrees of airflow obstruction at rest. Assessment of the shape of the maximal expiratory flow-volume (MEFV) curve in PRE and BPD may provide information concerning their unique pattern of airflow obstruction.
Molgat-Seon Y, Dominelli PB, Peters CM, Guenette JA, Sheel AW, Gladstone IM, Lovering AT, Duke JW.   +7 more
europepmc   +3 more sources

Diagnostic Value of the Maximal Expiratory Flow-Volume Curve for Central Airway Obstruction. [PDF]

Int J Gen Med
To investigate the factors associated with plateau-like changes during the expiratory phase of maximal expiratory flow-volume (MEFV) curves and their diagnostic value in identifying central airway obstruction (CAO).Totally 59 patients with expiratory phase plateau-like changes in the MEFV curves who were treated in Henan Provincial People's Hospital ...
Feng Y, Lian X, Wang H, Chen J, Xu J.
europepmc   +3 more sources

Maximal expiratory flow-volume curves in Londoners aged 60 years and over. [PDF]

Thorax, 1987
To obtain more accurate information about respiratory function in the elderly, we carried out spirometry and constructed maximum expiratory flow-volume curves in 136 volunteers over the age of 60 years (90 women, 46 men). Significant age related differences were found.
M R Hetzel
exaly   +3 more sources

Changes in the Flow-Volume Curve According to the Degree of Stenosis in Patients With Unilateral Main Bronchial Stenosis [PDF]

Clinical and Experimental Otorhinolaryngology, 2015
ObjectivesThe shape of the flow-volume (F-V) curve is known to change to showing a prominent plateau as stenosis progresses in patients with tracheal stenosis.
Yousang Ko, Jung-Geun Yoo, Chin A Yi, Kyung Soo Lee, Kyeongman Jeon, Sang-Won Um, Won-Jung Koh, Gee Young Suh, Man Pyo Chung, O Jung Kwon, Hojoong Kim   +10 more
doaj   +1 more source

Respiratory Function in Healthy Taiwanese Infants: Tidal Breathing Analysis, Passive Mechanics, and Tidal Forced Expiration. [PDF]

PLoS ONE, 2015
Although infant lung function (ILF) testing is widely practiced in developed Western countries it is not typically performed in Eastern countries, and lung measurements are scarce for Asian infants.
Shen-Hao Lai, Sui-Ling Liao, Tsung-Chieh Yao, Ming-Han Tsai, Man-Chin Hua, Kuo-Wei Yeh, Jing-Long Huang   +6 more
doaj   +1 more source

Intrasubject variability of maximal expiratory flow volume curve. [PDF]

Thorax, 1977
Analysis of airflow in the terminal portion of the maximal expiratory flow volume curve has been suggested as a useful test for the early diagnosis of chronic airways obstruction. Whether such an analysis can identify early disease, and whether any subsequent action can prevent the progress of chronic airways obstruction, is unknown and will require ...
G M, Cochrane, F, Prieto, T J, Clark
openaire   +2 more sources

Gravitational distribution of regional opening and closing pressures, hysteresis and atelectrauma in ARDS evaluated by electrical impedance tomography

Critical Care, 2020
Background The physiological behavior of lungs affected by the acute respiratory distress syndrome (ARDS) differs between inspiration and expiration and presents heterogeneous gravity-dependent distribution.
Gaetano Scaramuzzo, Elena Spinelli, Savino Spadaro, Alessandro Santini, Donatella Tortolani, Francesca Dalla Corte, Antonio Pesenti, Carlo Alberto Volta, Giacomo Grasselli, Tommaso Mauri   +9 more
doaj   +1 more source

Principal component analysis of flow-volume curves in COPDGene to link spirometry with phenotypes of COPD

Respiratory Research, 2023
Background Parameters from maximal expiratory flow-volume curves (MEFVC) have been linked to CT-based parameters of COPD. However, the association between MEFVC shape and phenotypes like emphysema, small airways disease (SAD) and bronchial wall ...
Kenneth Verstraete, Nilakash Das, Iwein Gyselinck, Marko Topalovic, Thierry Troosters, James D. Crapo, Edwin K. Silverman, Barry J. Make, Elizabeth A. Regan, Robert Jensen, Maarten De Vos, Wim Janssens   +11 more
doaj   +1 more source

Role of the Emphysema Index Combined with the Chronic Obstructive Pulmonary Disease Assessment Test Score in the Evaluation of Chronic Obstructive Pulmonary Disease

Canadian Respiratory Journal, 2021
Background. This study aimed to evaluate the efficacy of the emphysema index (EI) in distinguishing chronic bronchitis (CB) from chronic obstructive pulmonary disease (COPD) and its role, combined with the COPD Assessment Test (CAT) score, in the ...
Qi Ding, Xia Wei, Jie Li, Yan-Zhong Gao, Shu-Di Xu, Nan Yu, Jiu-Yun Mi, Bai-Bing Mi, You-Min Guo   +8 more
doaj   +1 more source