Physiologic Studies of Tracheobronchial Stents in Airway Obstruction
| Autor: | G. Alexander Patterson, Janet R. Maurer, Arlette Colchen, Joel D. Epstein, Arthur F. Gelb, Donald P. Tashkin, Noe Zamel |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Adult
Male Pulmonary and Respiratory Medicine medicine.medical_specialty Vital capacity medicine.medical_treatment Constriction Pathologic Anastomosis FEV1/FVC ratio medicine Humans Lung transplantation Lung volumes Aged business.industry Stent Bronchial Diseases Middle Aged respiratory system Airway obstruction equipment and supplies medicine.disease Respiratory Function Tests respiratory tract diseases Surgery Silicone Elastomers Female Stents Tracheal Stenosis business Airway |
| Zdroj: | American Review of Respiratory Disease. 146:1088-1090 |
| ISSN: | 0003-0805 |
| DOI: | 10.1164/ajrccm/146.4.1088 |
| Popis: | When airway obstruction is due to extraluminal compression and/or dynamic collapse, metal and silicone rubber prosthetic stents may stabilize the affected airway. Through a rigid bronchoscope, we inserted three metal stents in two patients and 18 silicone stents in 15 adult patients with symptomatic tracheobronchial compression and dynamic airway collapse. The underlying cause was malignancy in three patients; benign tracheobronchial malacia in three patients, two of whom refused surgical resection; and tracheobronchial stenosis that developed at the anastomotic site following lung transplantation in 11 patients. Clinical status and lung function studies were analyzed before and after stent insertion. Following stent insertion, airway diameter at least doubled and near normal patency of the affected tracheobronchial tree was achieved in every patient using stents of axial length 4 to 5 cm. The stents were well tolerated clinically, and all patients noted immediate relief of dyspnea. Following stent insertion, the forced vital capacity (FVC) increased from 64 +/- 21% predicted (mean +/- 1 SD) to 73 +/- 19% predicted, p less than 0.1; the forced expiratory volume in 1 s (FEV1) from 49 +/- 25% predicted to 72 +/- 26% predicted, p less than 0.02; the ratio of the FEV1/FVC from 59 +/- 16% to 78 +/- 15%, p less than 0.01; and the maximum flow at 50% expired FVC from 38 +/- 26% predicted to 72 +/- 31% predicted, p less than 0.01. |
| Databáze: | OpenAIRE |
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