title: High-speed video or video stroboscopy in adolescents: which sheds more light?
abstract: OBJECTIVE
  The primary objective of this study was to compare the utility of high-speed video (HSV) to videostroboscopy (VS) in the assessment of adolescents with normal and abnormal larynges. A secondary objective was to evaluate the ease of assessment of adolescents with HSV.
  
  
  METHODS
  Case series with chart review.
  
  
  METHODS
  Tertiary academic health care center.
  
  
  METHODS
  This study involved a retrospective review of recordings of 7 adolescents assessed with both HSV and VS. The 14 recordings were randomized and presented to 4 groups of blinded evaluators: 2 fellowship-trained laryngologists, 2 speech language pathologists (SLP) with multiyear experience working in a voice clinic, 2 pediatric otolaryngologists, and 2 otolaryngology residents. Raters were asked to evaluate the videos using a standardized scoring tool. Raters also completed a questionnaire assessing their opinion of the HSV and VS recordings.
  
  
  RESULTS
  Evaluators required more time to complete their assessment of VS recordings (2.95 min ± 2.41 min) than HSV recordings (2.31 min ± 1.92 min) (P = .004). There was no difference in ease of evaluation (P = .878) or diagnostic accuracy within evaluator groups by recording modality (P = .5). The overall agreement between VS and HSV was moderate (kappa [SE] = 0.446 [0.029]). The debrief questionnaire revealed that 5 of 8 (62.5%) preferred VS to HSV.
  
  
  CONCLUSIONS
  This is the first comparative study between HSV and VS in patients under 18 years of age. HSV permitted faster evaluation than VS, but there was no difference in diagnostic accuracy between the 2 modalities. The evaluators preferred VS to HSV.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Tulika
authors.initials: T
authors.lastname: Shinghal
authors.affiliation: The Voice Clinic, Toronto, Ontario, Canada.
authors.forename: Aaron
authors.initials: A
authors.lastname: Low
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada Centre for Paediatric Voice & Laryngeal Function and Department of Communication Disorders, Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: Laurie
authors.initials: L
authors.lastname: Russell
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada Department of Otolaryngology-Head and Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: Evan J
authors.initials: EJ
authors.lastname: Propst
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Antoine
authors.initials: A
authors.lastname: Eskander
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada Department of Otolaryngology-Head and Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada Centre for Paediatric Voice & Laryngeal Function and Department of Communication Disorders, Hospital for Sick Children, Toronto, Ontario, Canada paolo.campisi@sickkids.ca.
authors.forename: Paolo
authors.initials: P
authors.lastname: Campisi
mesh_terms: D000293:Adolescent; D002648:Child; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis; D057045:Laryngopharyngeal Reflux / Q000175:diagnosis*; D007828:Laryngoscopy / Q000379:methods; D008297:Male; D015588:Observer Variation; D030361:Papillomavirus Infections / Q000175:diagnosis*; D012016:Reference Values; D012141:Respiratory Tract Infections / Q000175:diagnosis*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D049489:Stroboscopy / Q000379:methods*; D062606:Tertiary Care Centers; D014732:Vibration; D014741:Video Recording / Q000379:methods*; D014827:Vocal Cords / Q000503:physiopathology*
keywords: HSV; High-speed video; children; digital imaging; pediatric; stroboscopy; videostroboscopy