Results 211 to 220 of about 12,649,601 (263)

Development and validation of a multimodal risk prediction model for early COPD progression: a retrospective study integrating clinical, functional, and CT radiomic features. [PDF]

Ther Adv Respir Dis
Zhang J, Yang Q, Dai S, Li J, Zhang Z, Jia Z, Zhu W, Yang R, Bai X, Li W, Zhang X, Zhang X, Chen J, Zou W.   +13 more
europepmc   +1 more source

Positive end-expiratory pressure in pediatric acute respiratory distress syndrome: a narrative review. [PDF]

Transl Pediatr
Allen L, Mallory P, Rotta AT, Rehder KJ, Miller AG.   +4 more
europepmc   +1 more source

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Maximal expiratory flow volume curves in workers exposed to asbestos.

Respiration, 1980
We have studied 40 workers with varying industrial exposure to asbestos, using routine spirometry and maximal expiratory flow volume curves (MEFVC). Abnormalities of MEFVC were common and seen in those with normal spirometry and total lung capacity.
R. Rodríguez-Roisín, J. Merchant, G. Cochrane, B. Hickey, M. Turner-Warwick, T. Clark   +5 more
semanticscholar   +5 more sources

Validity of simple physical models in interpreting maximal expiratory flow-volume curves.

Respiration Physiology, 1972
Abstract The effort independent portion of the maximal expiratory flow-volume (MEV) curve can be described by means of simple equations representing one-compartment physical models, based on Mead's equal pressure point (EPP) concept. Three such descriptions have been tested on flow-volume curves obtained in 17 healthy individuals during forced ...
J. Clement, K. P. van de Woestijne
semanticscholar   +5 more sources

Maximal expiratory and inspiratory flow-volume curves in bilateral vocal-cord paralysis. Changes after surgical treatment and comparison with glottic resistance characteristics.

Orl, 1987
The maximal expiratory flow-volume (MEFV) and maximal inspiratory flow-volume (MIFV) curve present maximal attainable flows, plotted against the displaced volume at the mouth during a forced expiratory manoeuvre from total lung capacity (TLC) and a subsequent forced inspiratory manoeuvre from residual volume (RV), respectively. Depending on the glottic
J. Bogaard, K. Pauw, Adrian Versprille, H. Stam, A. Verbraak, A. J. Maas   +5 more
semanticscholar   +4 more sources

The Characteristics of the Concavity of Descending Limb of Maximal Expiratory Flow-Volume Curves Generated by Spirometry

Lung
This study examined the concavity (angle β, central and peripheral concavity) of the descending limb of the maximal expiratory flow-volume (MEFV) curves to reflect various ventilatory defects, including obstructive, restrictive, or mixed patterns.We conducted a cross-sectional study collecting spirometry data from a healthcare center and a tertiary ...
Zhu-Feng Wang, Li-Na Liang, F. Huang, Kang Peng, Jun-Feng Lin, Yi Gao, Jin-Ping Zheng   +6 more
semanticscholar   +5 more sources

Maximal expiratory and inspiratory flow-volume curves in Parkinson's disease.

American Review of Respiratory Disease, 1989
Abstract In order to investigate the type and degree of upper airway obstruction (UAO) in a group of patients with Parkinson's disease in different stages of the disease, we obtained maximal expiratory and inspiratory flow-volume (MEFV and MIFV) curves and maximal static mouth pressures.
J. Bogaard, A. Hovestadt, J. Meerwaldt, F. G. Vd Meché, J. Stigt   +4 more
semanticscholar   +3 more sources

Variability in the maximal expiratory flow volume curve in asymptomatic smokers and in nonsmokers.

American Review of Respiratory Disease, 2015
Abstract Variability in maximal expiratory flow volume (MEFV) curves was studied in a group of non-smokers and asymptomatic smokers, using the body Plethysmograph to measure lung volume. Several factors were evaluated for their ability to predict maximal expiratory flows (MEF) at various lung volumes. Of the factors studied, age, sex,
L. F. Black, K. Offord, R. Hyatt
semanticscholar   +3 more sources