The clinical utility of bronchoscopic methods for achieving lung volume reduction has been evaluated in patients with advanced emphysema because these procedures are uniformly safer than surgical volume reduction. These include one-way valves, or bronchial occlusive devices to collapse emphysematous regions of lung and bronchial fenestration with bypass stents to improve expiratory flow, wire coils implants that compress the airway and thermal vapor ablation that causes an acute injury with subsequent fibrosis and reductions in volume.
Biologic lung volume reduction (BioLVR): it is a novel endobronchial approach, which uses a Biological agents aiming to reduce lung volume by blocking off the most emphysematous areas with a rapidly polymerizing sealant. The mechanism of action involves resorption atelectasis from airway occlusion, subsequent airspace inflammation, and then remodeling. This remodeling will lead to scarring that induces contraction of lung parenchyma and functional volume reduction can be expected within 6-8 weeks. Biological lung volume reduction occurs independent of the presence or absence of collateral ventilation.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
15
Fiberoptic bronchoscopy is used to inject the biological agents into the targeted lung segment
Chest Medicine Department, Faculty Of Medicine, Mansoura University
Al Mansurah, Al-dakahliya, Egypt
Post-procedure lung volume reduction
Change from the baseline high-resolution computed tomography (HRCT) volumetry Change from the baseline Residual Volume/Total Lung Capacity from baseline.
Time frame: 12 week
Post-procedure Improvement in dyspnea and exercise capacity
Changes from the baseline post-bronchodilator forced expiratory volume at one second (FEV1) and forced vital capacity (FVC), diffusing capacity of lung for carbon monoxide (DLCO), six-minute walk distance (6MWD),modified medical research council (MMRC) dyspnea score.
Time frame: 12 weeks
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