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Pulmonary function improves after expandable metal stent placement for benign airway obstruction. 1999

M D Eisner, and R L Gordon, and W R Webb, and W M Gold, and S E Hilal, and K Edinburgh, and J A Golden
Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco 94143-0924, USA. eisner@itsa.ucsf.edu

OBJECTIVE To determine whether expandable metal stent placement for benign airway lesions improves pulmonary function. METHODS Case series. METHODS University medical center. METHODS Nine patients who underwent balloon-mediated expandable metal stent deployment for airway obstruction due to benign etiologies. RESULTS All nine patients had expandable stents deployed for benign airway lesions using fiberoptic bronchoscopy and fluoroscopic guidance. Pulmonary function improved after stent placement. The mean FVC increased by 388 mL (95% confidence interval [CI], 30 to 740 mL), the mean peak expiratory flow (PEF) increased by 1,288 mL (95% CI, 730 to 1,840 mL), the mean FEV1 increased by 550 mL (95% CI, 240 to 860 mL), and the mean forced expiratory flow between 25% and 50% of vital capacity (FEF25-75%) increased by 600 mL (95% CI, 110 to 1,090 mL). Corresponding relative measurements included increases in FVC (12%), PEF (95%), FEV1 (38%), and FEF25-75% (87%). The complete characterization of a benign airway obstruction generally required a multimodal approach. CONCLUSIONS Expandable metal stent placement appears to be an effective therapy for benign airway obstruction.

UI MeSH Term Description Entries
D008297 Male Males
D008450 Maximal Midexpiratory Flow Rate Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%. Forced Expiratory Flow 025-075 Percent,FEF 25-75 Percent,Flow Rate, Maximal Midexpiratory,MMFR,25-75 Percent, FEF,25-75 Percents, FEF,FEF 25 75 Percent,FEF 25-75 Percents,Forced Expiratory Flow 025 075 Percent,Percent, FEF 25-75,Percents, FEF 25-75
D008670 Metals Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed) Metal
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010366 Peak Expiratory Flow Rate Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR. Expiratory Peak Flow Rate,Flow Rate, Peak Expiratory,PEFR
D001982 Bronchial Diseases Diseases involving the BRONCHI. Bronchial Disease,Disease, Bronchial,Diseases, Bronchial
D003251 Constriction, Pathologic The condition of an anatomical structure's being constricted beyond normal dimensions. Stenosis,Stricture,Constriction, Pathological,Pathologic Constriction,Constrictions, Pathologic,Pathologic Constrictions,Pathological Constriction,Stenoses,Strictures
D005260 Female Females
D005541 Forced Expiratory Volume Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity. Forced Vital Capacity, Timed,Timed Vital Capacity,Vital Capacity, Timed,FEVt,Capacities, Timed Vital,Capacity, Timed Vital,Expiratory Volume, Forced,Expiratory Volumes, Forced,Forced Expiratory Volumes,Timed Vital Capacities,Vital Capacities, Timed,Volume, Forced Expiratory,Volumes, Forced Expiratory
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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