title: Video-assisted thoracoscopic surgery of mediastinal bronchogenic cysts in adults: a single-center experience.
abstract: BACKGROUND
  Mediastinal bronchogenic cysts are rarely diagnosed in adults, hence surgical experience is limited particularly with regard to video-assisted thoracoscopic surgery. In support of the thoracoscopic approach we report our single-center experience in this rare entity.
  
  
  METHODS
  Between June 1995 and December 2002, a nonselected series of 12 consecutive patients presenting with mediastinal bronchogenic cysts underwent video-assisted thoracoscopic surgery. Six cysts (50%) had been diagnosed 2 to 22 years prior, only three of which became symptomatic. In asymptomatic patients (n = 7) surgery was performed because of increasing cyst size (n = 3), patient's request (n = 3), or suspected metastasis (n = 1).
  
  
  RESULTS
  Mediastinal bronchogenic cysts were correctly diagnosed by computed tomography in 83% (10/12) and by magnetic resonance imaging in 100% (9/9). Using a three-trocar technique thoracoscopic surgery was successfully performed in 11 of 12 cases (92%). We noted no signs of acute cyst infection. No serious postoperative complications were observed. In 1 patient conversion to open thoracotomy was necessary due to extensive pleural adhesions. In another case thoracoscopic excision of the cyst wall was incomplete. Patients with thoracoscopic excision were discharged after a median of 5.5 days (range 4 to 14 days). No recurrences or complications were observed during a mean follow-up of 40.5 months.
  
  
  CONCLUSIONS
  Considering the low conversion and complication rate in our series, video-assisted thoracoscopic surgery should be the primary therapeutic choice among adults with symptomatic mediastinal bronchogenic cysts. Surgical intervention in patients with asymptomatic and uncomplicated cysts appears optional.
authors.affiliation: Division of General Thoracic Surgery, University Hospital Berne, Bern, Switzerland. thomas.weber@insel.ch
authors.forename: Thomas
authors.initials: T
authors.lastname: Weber
authors.forename: Thierry C
authors.initials: TC
authors.lastname: Roth
authors.forename: Morris
authors.initials: M
authors.lastname: Beshay
authors.forename: Peter
authors.initials: P
authors.lastname: Herrmann
authors.forename: Robert
authors.initials: R
authors.lastname: Stein
authors.forename: Ralph A
authors.initials: RA
authors.lastname: Schmid
mesh_terms: D000328:Adult; D001994:Bronchogenic Cyst / Q000151:congenital / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008476:Mediastinal Cyst / Q000151:congenital / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D012189:Retrospective Studies; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed