title: [Stroboscopy findings: a comparison of flexible CCD-videostroboscopy and rigid stroboscopy].
abstract: OBJECTIVE
  After exclusion of morphologic laryngeal alterations by laryngoscopy the prospective study compared stroboscopy findings using a flexible distal charge-coupled device chip-optic (CCD-optic) and a rigid 70° - or 90° -laryngoscope.
  
  
  METHODS
  52 patients with functional dysphonia and 47 candidates for speech therapy education were checked with both examination methods. The stroboscopy results were rated randomized and pseudonymized by 3 experts assessed by a study protocol according to the European laryngological society basic protocol 2001.
  
  
  RESULTS
  The interrater-reliability was moderate to good. Using the flexible videolaryngoscopy less gaging, less supraglottic contraction during phonation, more often a complete glottal closure and more often a normal mucosal wave movement were found.
  
  
  CONCLUSIONS
  To get an optimal endoscopy result the combination of rigid laryngoscopy and flexible videolaryngoscopy and -stroboscopy will be recommended. Because of the variety of stroboscopic findings for the diagnosis of functional dysphonia additional the case history and functional voice examinations are necessary.
authors.affiliation: Universitätsmedizin Mainz, Schwerpunkt Kommunikationsstörungen/HNO-Klinik, Mainz. sabine.nospes@unimedizinmainz.de
authors.forename: S
authors.initials: S
authors.lastname: Nospes
authors.forename: K
authors.initials: K
authors.lastname: Kuhr
authors.forename: U
authors.initials: U
authors.lastname: Napiontek
authors.forename: A
authors.initials: A
authors.lastname: Keilmann
mesh_terms: D000328:Adult; D000368:Aged; D055154:Dysphonia / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D006801:Humans; D007828:Laryngoscopy / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013070:Speech Therapy; D049489:Stroboscopy / Q000295:instrumentation*; D014741:Video Recording / Q000295:instrumentation*; D014833:Voice Quality