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  • Title: Safety and Efficacy of a Fully Covered Self-Expandable Metallic Stent in Benign Airway Stenosis.
    Author: Fortin M, Lacasse Y, Elharrar X, Tazi-Mezalek R, Laroumagne S, Guinde J, Astoul P, Dutau H.
    Journal: Respiration; 2017; 93(6):430-435. PubMed ID: 28448981.
    Abstract:
    BACKGROUND: The use of self-expandable metallic stents (SEMS) in benign airway disease was the object of a boxed warning from the United States Food and Drug Administration in 2005 due to the risk of stent-related complications and difficulties associated with their removal. Third-generation fully covered SEMS have been commercialized since this warning and theoretically should not present the same difficulties associated with removal as they cannot become embedded in the airway mucosa. OBJECTIVES: We aimed to examine the safety and efficacy of a specific third-generation SEMS, the Silmet stent. METHODS: We reviewed the records of all patients treated for benign airway stenosis with third-generation Silmet SEMS from January 2011 to December 2015 at the North Hospital of Marseilles, France. RESULTS: Forty SEMS were inserted in 30 patients over this period. Twenty (50.0%) stents were removed because of stent-related complications after a median of 77.0 ± 96.6 days (migration 32.5%, granulation tissue formation 7.5%, subjective intolerance 5.0%, mucus plugging 2.5%, laryngeal edema 2.5%). There were no cases of stent-related mortality. All complications were managed successfully endoscopically. Thirty-six stents (90.0%) were removed successfully after a median of 122.0 ± 113.2 days without any complications. The clinical success rate of stent treatment was 40.7%. CONCLUSION: Third-generation SEMS are a safe treatment option for complex benign airway stenosis, but complications requiring stent removal are frequent. Further studies are needed to compare the performance of third-generation SEMS and silicone stents in benign airway stenosis.
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