title: Metallic stents for tracheobronchial pathology treatment.
abstract: OBJECTIVE
  To present the 7-year experience of the treatment of benign and malignant tracheobronchial stenoses using metallic stents.
  
  
  METHODS
  One hundred twenty-three stents were inserted in 86 patients (74 benign and 12 malignant stenoses). Ninety-seven stents were placed in the trachea and 26 in the bronchi. The procedures were performed under fluoroscopic and flexible bronchoscopic guidance with the patient under light sedation. In cases of severe stenotic lesions or obstructions, laser resection was performed before stent placement. Clinical and functional pulmonary data were recorded before and 3 months after the procedure. Follow-up involved clinical data and radiographic techniques at 48 h and at 1-, 3-, 6-, and 12-month intervals.
  
  
  RESULTS
  The technical success was 100 %. Dyspnea disappearance, forced expiratory volume in the first second, and pulmonary functional data improvement was observed in all patients (p < 0.001). Complications were detected in 23 patients (26.7 %). Mean follow-up time was 6.3 ± 1.2 months in patients with malignant lesions and 76.2 ± 2.3 months patients with in benign lesions. By the end of the study, 100 % of patients with malignant pathology and 6.7 % of patients with benign lesions had died.
  
  
  CONCLUSIONS
  Endoluminal treatment of tracheobronchial stenosis with metallic stents is a therapeutic alternative in patients who are poor candidates for surgery. In unresectable malignant lesions, the benefit of metallic stenting is unquestionable. In benign lesions, the results are satisfactory, but sometimes other interventions are required to treat complications. New stent technology may improve these results.
authors.affiliation: Surgical Pathology Unit, Animal Pathology Department, University of Zaragoza, C/ Miguel Servet nº 177, 50013, Zaragoza, Spain. carolina.serrano@unizar.es.|Minimally Invasive Techniques Research Group (GITMI), University of Zaragoza, Zaragoza, Spain. carolina.serrano@unizar.es.
authors.forename: Carolina
authors.initials: C
authors.lastname: Serrano
authors.affiliation: Minimally Invasive Techniques Research Group (GITMI), University of Zaragoza, Zaragoza, Spain.
authors.forename: Alicia
authors.initials: A
authors.lastname: Laborda
authors.affiliation: Radiology Department, Marly Clinic, Bogotá, Colombia.
authors.forename: Juan M
authors.initials: JM
authors.lastname: Lozano
authors.affiliation: Pulmonology Department, Marly Clinic, Bogotá, Colombia.
authors.forename: Hugo
authors.initials: H
authors.lastname: Caballero
authors.affiliation: Pulmonology Department, Lozano Blesa Clinical University Hospital, Zaragoza, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Sebastián
authors.affiliation: Interventional Radiology Deparment, Health Science Center, San Antonio, TX, USA.
authors.forename: Jorge
authors.initials: J
authors.lastname: Lopera
authors.affiliation: Minimally Invasive Techniques Research Group (GITMI), University of Zaragoza, Zaragoza, Spain.|Intervencional Radiology Department, Lozano Blesa Clinical University Hospital, Zaragoza, Spain.
authors.forename: Miguel Ángel
authors.initials: MÁ
authors.lastname: de Gregorio
mesh_terms: D000328:Adult; D001980:Bronchi / Q000601:surgery; D001982:Bronchial Diseases / Q000150:complications / Q000601:surgery*; D001984:Bronchial Neoplasms / Q000150:complications / Q000601:surgery*; D001999:Bronchoscopy / Q000379:methods; D003251:Constriction, Pathologic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012008:Recurrence; D012129:Respiratory Function Tests / Q000379:methods / Q000706:statistics & numerical data; D015607:Stents; D014132:Trachea / Q000601:surgery; D014134:Tracheal Neoplasms / Q000150:complications / Q000601:surgery*; D014135:Tracheal Stenosis / Q000150:complications / Q000601:surgery*; D016896:Treatment Outcome