Abstract:
:Stent placement is the only available treatment in patients presenting either a localized external compression or a malacia of the tracheobronchial tree. To assess the functional benefit of prosthesis insertion in these indications, we compared functional respiratory values before, immediately after (48 h), and at sometime after (mean, 10.1 months) operation in 24 patients presenting with a bronchial lesion (B group, n = 5) or a lesion of the intrathoracic part (ITT group, n = 9) or of the extrathoracic part of the trachea (ETT group, n = 10). Before treatment, airflow was severely impaired in most patients without significant differences among the groups. After prosthesis insertion, airflow parameters increased [change in forced expiratory volume in 1 s (delta FEV1 = 440 mL; delta peak expiratory flow (PEF) = 0.92 L.s-1; delta maximum expiratory flow 25/75 (delta MEF25/75) = 0.47 L.s-1; and delta forced inspiratory volume in 1 s (delta FIV1 = 310 mL)] and airway resistances (Raws) decreased (delta Raw = -0.43 kPa.s-1.s-1) without any significant variation in either forced vital capacity (FVC) or total lung capacity. Airflow improvement was more apparent in ITT and ETT groups than in the B group. Moreover, inspiratory flow increase and decrease of FEV1/PEF ratio were only observed in the ETT group. This airflow improvement was maintained for a long time after and was associated with a good clinical tolerance. This study supports the clinical and functional benefits of prosthesis placement both in benign and malignant airway compressions for palliative treatment.
journal_name
Chestjournal_title
Chestauthors
Vergnon JM,Costes F,Bayon MC,Emonot Adoi
10.1378/chest.107.3.741subject
Has Abstractpub_date
1995-03-01 00:00:00pages
741-6issue
3eissn
0012-3692issn
1931-3543pii
S0012-3692(15)44533-7journal_volume
107pub_type
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