title: [Endoscopic multi-color deglutition study].
abstract: BACKGROUND
  The complexity of the diagnostic/therapeutic problem in ENT-specific as well as in neurogenic dysphagia requires that test foods be offered in a variety of consistencies (viscosities), at different temperatures, and with various tastes. The swallowing assessment is undertaken with different head and trunk postures, using different swallowing techniques.
  
  
  METHODS
  A series of test foods of varied viscosities is prepared with different food colorings. It is given to the patient according to an individually-tailored viscosity plan, but usually in the same (repeatable) color sequence of blue-yellow or blue-yellow-black, an order which offers optimal color contrasts.
  
  
  CONCLUSIONS
  During repeated swallowing assessments, the "multicolor technique" is more useful for endoscopic observation of the pharyngolaryngeal route of the food bolus than the "methylene blue swallow". Food coloring is cheap and it changes neither the taste nor the pH of the food.
authors.affiliation: Univ.-Hals-Nasen-Ohrenklinik, Regensburg, Phoniatrie und Pädaudiologie. tamas-hacki@klinik.uni-regensburg.de
authors.forename: T
authors.initials: T
authors.lastname: Hacki
authors.forename: H
authors.initials: H
authors.lastname: Kramer
authors.forename: C
authors.initials: C
authors.lastname: Kleinjung
authors.forename: C
authors.initials: C
authors.lastname: Pérez-Alvarez
authors.forename: J
authors.initials: J
authors.lastname: Schmid
mesh_terms: D003679:Deglutition / Q000502:physiology; D003680:Deglutition Disorders / Q000175:diagnosis* / Q000503:physiopathology / Q000534:rehabilitation; D004945:Esophagoscopy; D004947:Esophagus / Q000503:physiopathology; D005505:Food Coloring Agents; D006801:Humans; D008751:Methylene Blue; D012680:Sensitivity and Specificity; D014783:Viscosity
chemical_list: D005505:Food Coloring Agents; D008751:Methylene Blue