title: Management of airway involvement of oesophageal cancer using covered retrievable nitinol stents.
abstract: OBJECTIVE
  To assess the efficacy and safety of covered retrievable nitinol stents in oesophageal cancer patients with airway involvement.
  
  
  METHODS
  Under fluoroscopic guidance, covered retrievable nitinol airway stents were placed in 23 oesophageal cancer patients with airway stricture and/or oesophagorespiratory fistula (ERF) over a long period of 12 years. Six patients only had aspiration by ERF and three patients had both airway stricture and asymptomatic ERF. Technical aspects, dyspnoea improvement, and/or resolution of ERF symptoms, complications, reinterventions, and survival data were evaluated.
  
  
  RESULTS
  A total of 27 airway stents (14 tracheal, 11 bronchial, and two hinged) were placed successfully in 23 patients with airway stricture or ERF. Dyspnoea score decreased significantly after stent placement (p<0.001). ERF were sealed off in all nine patients. Complications included stent migration or expectoration (n=4), haemoptysis (n=2), sputum retention (n=7), and tumour overgrowth (n=1). All three migrated stents were easily removed. Twenty-one patients died, with the median survival period of 76 days (range 2-197 days).
  
  
  CONCLUSIONS
  Placement of covered retrievable expandable nitinol stents was safe and effective for the palliative treatment of airway strictures and/or ERF, with a reasonable range of complications, in patients with advanced oesophageal cancer.
authors.affiliation: Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
authors.forename: K E
authors.initials: KE
authors.lastname: Lee
authors.forename: J H
authors.initials: JH
authors.lastname: Shin
authors.forename: H Y
authors.initials: HY
authors.lastname: Song
authors.forename: S B
authors.initials: SB
authors.lastname: Kim
authors.forename: K R
authors.initials: KR
authors.lastname: Kim
authors.forename: J Hyoung
authors.initials: JH
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D000497:Alloys; D001980:Bronchi / Q000473:pathology; D001995:Bronchography; D020878:Device Removal; D004812:Epidemiologic Methods; D004937:Esophageal Fistula / Q000628:therapy; D004938:Esophageal Neoplasms / Q000150:complications* / Q000473:pathology; D005260:Female; D005471:Fluoroscopy; D005548:Foreign-Body Migration / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D010166:Palliative Care / Q000379:methods; D015641:Radiography, Interventional / Q000379:methods; D016156:Respiratory Tract Fistula / Q000628:therapy; D015607:Stents / Q000009:adverse effects; D014135:Tracheal Stenosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy; D016896:Treatment Outcome
chemical_list: D000497:Alloys; C013616:nitinol