Dynamic Expiratory Tracheal Collapse in COPD
نویسندگان
چکیده
منابع مشابه
Expiratory central airway collapse in stable COPD and during exacerbations
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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Tracheal ultrasonography was performed to measure the width of the tracheal ring shadow and to assess the clinical relevance of these measurements for identifying tracheal collapse. The first tracheal ring width (FTRW) and thoracic inlet tracheal ring width (TITRW) were measured on both expiration and inspiration. The mean of the FTRW width (129 dogs) was greater in expiration (10.97 plusmn; 1....
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a significant portion of patients suffering from chronic obstructive pulmonary disease (COPD). An 88-year-old man presented with a 2 day history of episodic dyspnoea, wheeze and non-productive cough, on a background of COPD. Despite treatment with oral steroids and short-acting bronchodilators the patient remained symptomatic. A 320-slice, dynamic CT scan of the patient’s upper airway revealed ...
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BACKGROUND Expiratory positive airway pressure (EPAP) is a form of noninvasive positive-pressure ventilatory support that, in spite of not unloading respiratory muscles during inspiration, may reduce the inspiratory threshold load and attenuate expiratory dynamic airway compression, contributing to reduced expiratory air-flow limitation in patients with COPD. We sought to determine the effects...
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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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ژورنال
عنوان ژورنال: Chest
سال: 2012
ISSN: 0012-3692
DOI: 10.1378/chest.12-0299