Expiratory reactance abnormalities in patients with expiratory dynamic airway collapse: a new application of impulse oscillometry
نویسندگان
چکیده
منابع مشابه
Accuracy of Impulse Oscillometry in Airway Dysfunction
Background: The purpose of this study was to calculate and compare the specificity and sensitivity of impulse oscillometry (IOS) as a new technique in the detection of airways dysfunction by means of a simple pulmonary function test in chemical warfare injured cases suffering from respiratory diseases. Methods: The study was performed prospectively in 100 patients, who complained of dyspnea as ...
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BACKGROUND Tracheal obstruction resulting from expiratory tracheal deformation has been associated with respiratory symptoms and severe airway exacerbations. In chronic obstructive pulmonary disease (COPD), acute exacerbations (AECOPD) create large intrathoracic pressure swings which may increase tracheal deformation. Excessive central airway collapse (ECAC) may be diagnosed when the tracheal a...
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We thank Gesierich et al for raising some important issues regarding the evaluation of collateral ventilation using the Chartis flow catheter. In our review, we only provided two classical examples of Chartis expiratory flow and inspiratory pressure results; one from a patient with no collateral ventilation and another from a patient with significant collateral ventilation. However, in clinical...
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We report a patient with respiratory failure due to expiratory central airway collapse successfully treated with airway stents. A 74-year-old male with obesity and obstructive sleep apnea had recurrent episodes of acute respiratory failure. Noninvasive positive-pressure ventilation failed because of patient intolerance and lack of improvement, and soon after he stopped using the noninvasive ven...
متن کاملaccuracy of impulse oscillometry in airway dysfunction
background: the purpose of this study was to calculate and compare the specificity and sensitivity of impulse oscillometry (ios) as a new technique in the detection of airways dysfunction by means of a simple pulmonary function test in chemical warfare injured cases suffering from respiratory diseases. methods: the study was performed prospectively in 100 patients, who complained of dyspnea a...
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ژورنال
عنوان ژورنال: ERJ Open Research
سال: 2018
ISSN: 2312-0541
DOI: 10.1183/23120541.00080-2018