PMC8626178_01
(a) Dynamic bronchoscopy showing severe expiratory central airway collapse of the distal trachea, left main stem bronchus, and right main bronchus. (b) Self-expandable metallic stents deployed in the airway during stent trial. (c) Dynamic bronchoscopy showing <70% collapse of the distal trachea, left main stem bronchus, and right main bronchus.
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fig1
Dynamic bronchoscopy showed severe expiratory central airway collapse (ECAC) with >90% collapse of the trachea, main stem bronchi, and bronchus intermedius (Figure 1(a)). A stent trial (Figure 1(b)) was performed with placement of three uncovered self-expandable metallic stents in the left mainstem bronchus, distal and mid trachea and right mainstem bronchus and bronchus intermedius. Dynamic bronchoscopy showed improvement in the degree of ECAC (Figure 1(c)).
Coronal reconstruction of chest computed tomography (a) pre- and (b) postdiaphragmatic plication with noted improved lung expansion.
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fig2
CT of the chest demonstrated improved lung volumes (Figure 2).