title: Transnasal injection laryngoplasty.
abstract: OBJECTIVE
  The objective of this study was to evaluate the role of transnasal fiber-optic injection laryngoplasty in the treatment of glottic insufficiency.
  
  
  METHODS
  Video recordings of 16 patients who underwent fiber-optic injection laryngoplasty for the treatment of glottic insufficiency were reviewed. Outcome measures included perceptual evaluation using the GRBAS (grading, roughness, breathiness, asthenia, straining) classification, laryngeal videostroboscopy, and frame-by-frame analysis to assess the extent, shape, and duration of glottic closure.
  
  
  RESULTS
  Nine patients were ultimately included in this study. Their mean age was 66.2 years, with 7 men and 2 women. The most common symptoms were dysphonia and aspiration, and the most common diagnosis was vocal fold paralysis. Patients underwent transnasal fiber-optic injection laryngoplasty with hyaluronic acid as a filling material (0.2-0.8 mL). The procedure was well tolerated by all patients, with improvement in the phonatory symptoms and aspiration in 66.66% and 50% of patients, respectively. There were significant decreases in the mean scores of all perceptual parameters (P<.05 for all). All subjects had glottal gap preoperatively that was closed completely in 66.66% and reduced to <2 mm in 33.33%. The mean closed quotient significantly increased from 0.10 to 0.51 (P<.05).
  
  
  CONCLUSIONS
  Transnasal fiber-optic injection laryngoplasty is a safe procedure well tolerated by patients with good results.
authors: Department of Otolaryngology - Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon ah77@aub.edu.lb.
authors: Abdul-Latif
authors: AL
authors: Hamdan
authors: Department of Otolaryngology - Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
authors: Georges
authors: G
authors: Ziade
authors: Department of Otolaryngology - Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
authors: Hussein
authors: H
authors: Jaffal
authors: Department of Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
authors: Ghassan
authors: G
authors: Skaff
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005336:Fiber Optic Technology; D005500:Follow-Up Studies; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage*; D007267:Injections; D007818:Laryngeal Diseases / Q000601:surgery*; D058753:Laryngoplasty / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009666:Nose; D012189:Retrospective Studies; D014741:Video Recording; D055675:Viscosupplements / Q000008:administration & dosage
chemical_list: D055675:Viscosupplements; D006820:Hyaluronic Acid
keywords: fiber-optic; glottal gap; hyaluronic acid