Placement of Metallic Stents for Critical Airway Stenosis Due to Malignant Diseases

概要

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Background. Placement of a silicon tracheobronchial prosthesis in emergency situations has become an established therapeutic option to relieve airway stenosis due to malignant diseases. However, the alternative use of a metallic stent has never been fully evaluated. Purpose. To elucidate the clinical relevance of placing metallic stents in patients with critical airway stenosis due to malignant diseases. Patients and Methods. Thirteen patients with critical airway stenosis treated by placing metallic stents and meeting some defined conditions were retrospectively reviewed in terms of usefulness and adverse events. The stents were placed by flexible bronchoscopes under topical anesthesia in all cases. Results. Metallic stent placement was easy, quick and successful in every patient, and airway stenosis was quickly relieved after the procedure in all patients. Accordingly, dyspnea as assessed by a scoring system was improved from I day to I month after the placement. Performance status was not improved significantly by the procedure. Adverse events of serious nature were observed in 6 of the 13 patients. Conclusion. Metallic tracheobronchial stents for patients with airway stenosis and critical conditions seemed to have advantages in relieving dyspnea. Considering the adverse events, however, the choice of this option should be restricted to patients with limited expected survival.
日本呼吸器内視鏡学会の論文
2003-09-25