title: Oki stent application in different indications: Six cases.
abstract: BACKGROUND
  We have used Oki stents for a number of different indications. After discovering that there are limited reports in the literature on these stents, we were motivated to share our experiences in Oki stenting.
  
  
  OBJECTIVE
  While there is vast knowledge on double Y-stents, the Oki stent is a relatively recent development in pulmonology. Here, we demonstrate that stenting of the right secondary carina using an Oki stent should be considered for obstructions in this region.
  
  
  METHODS
  We placed 13 mm × 10 mm × 9 mm Oki stents in six patients under general anesthesia via rigid bronchoscopy.
  
  
  RESULTS
  Three cases were post-transplant patients with malacia, stenosis, and bronchopleural fistula. One case had an airway obstruction due to malignant disease, another case had a right aortic arc and aberrant left subclavian artery anomaly, and the final case had bronchopleural fistula. No serious complications were observed during stent placement.
  
  
  CONCLUSIONS
  Oki stents can safely be used for many clinical conditions. Patients benefit greatly from stenting; however, two of our cases died due to infection, and one case died due to malignancy.
authors.affiliation: Department of Chest Diseases, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey.
authors.forename: Mehmet Akif
authors.initials: MA
authors.lastname: Özgül
authors.affiliation: Department of Chest Diseases, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey.
authors.forename: Erdoğan
authors.initials: E
authors.lastname: Çetinkaya
authors.affiliation: Department of Chest Diseases, Karabuk University Faculty of Medicine, Karabuk, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Çörtük
authors.affiliation: Department of Chest Diseases, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey.
authors.forename: Elif
authors.initials: E
authors.lastname: Tanrıverdi
authors.affiliation: Department of Chest Diseases, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey.
authors.forename: Binnaz Zeynep
authors.initials: BZ
authors.lastname: Yıldırım
authors.affiliation: Kartal Kosuyolu Yuksek Ihtisas Training Hospital, Lung Transplantation Clinic, Istanbul, Turkey.
authors.forename: Merih Kalamanoğlu
authors.initials: MK
authors.lastname: Balci
authors.affiliation: Department of Thoracic Surgery, Marmara University Faculty of Medicine, Istanbul, Turkey.
authors.forename: Adamu
authors.initials: A
authors.lastname: Issaka
authors.affiliation: Department of Chest Diseases, Bagcilar Education and Research Hospital, İstanbul, Turkey.
authors.forename: Güler
authors.initials: G
authors.lastname: Özgül
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D001013:Aorta, Thoracic / Q000002:abnormalities; D001983:Bronchial Fistula / Q000150:complications / Q000175:diagnosis; D001999:Bronchoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D011474:Prosthesis Design; D013902:Radiography, Thoracic; D012189:Retrospective Studies; D015607:Stents; D019616:Thoracic Surgical Procedures / Q000379:methods*; D014057:Tomography, X-Ray Computed; D054079:Vascular Malformations / Q000150:complications / Q000175:diagnosis
keywords: bronchomalacia; lung neoplasms; lung transplantation; silicones; stents