title: [Voice restoration with voice prosthesis after total laryngectomy. Assessment of survival time of 378 Provox-1, Provox-2 and Blom-Singer voice prosthesis].
abstract: Voice Restoration with Voice Prosthesis after Total Laryngectomy. Assessment of Survival Time of 378 Provox-1, Provox-2 and Blom-Singer Voice Prosthesis.
  
  
  BACKGROUND
  Indwelling voice prosthesis are used in Trier for voice restoration after total laryngectomy since 1991.
  
  
  OBJECTIVE
  To assess the voice prosthesis survival times the patients of the years 1993-1999 are assessed retrospectively.
  
  
  METHODS
  58 patients provided with indwelling voice prosthesis were seen regularly at follow-up. 378 prosthesis were changed. Provox 1, Provox 2 and Blom-Singer-Prostheses were used.
  
  
  RESULTS
  The average survival lifetime of the prosthesis was 224 days for Provox-1, 96 days for Provox-2 and 107 days for Blom-Singer respectively. There is no significant difference found between Provox-2 and Blom-Singer Prosthesis. The survival times of the Provox-1 Prosthesis is significant longer.
  
  
  CONCLUSIONS
  Using indwelling voice prosthesis for voice restoration after total laryngectomy an average survival time of the prosthesis of three months can be expected. There are relevant individual differences. Provox-1 Prosthesis have a significantly longer survival time, but as they are more difficult to handle they are not suitable for routine use. The indication for the choice between Blom-Singer or Provox-2 Prosthesis should be influenced by the surgeons' experience.
authors.affiliation: Klinik für HNO-Krankheiten, Kopf-Hals- und Plastische Gesichtschirurgie, Kommunikationsstörungen, Krankenanstalt Mutterhaus der Borromäerinnen, Trier. schaefer-p@freenet.de
authors.forename: P
authors.initials: P
authors.lastname: Schäfer
authors.forename: N
authors.initials: N
authors.lastname: Klützke
authors.forename: F P
authors.initials: FP
authors.lastname: Schwerdtfeger
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D004938:Esophageal Neoplasms / Q000601:surgery; D005260:Female; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000601:surgery; D007822:Laryngeal Neoplasms / Q000601:surgery; D007825:Laryngectomy / Q000534:rehabilitation*; D007831:Larynx, Artificial; D008297:Male; D008875:Middle Aged; D009959:Oropharyngeal Neoplasms / Q000601:surgery; D011182:Postoperative Care; D012189:Retrospective Studies; D013997:Time Factors