title: Effect of the reclining position in patients after oral tumor surgery.
abstract: OBJECTIVE
  This study investigated the effects of reclining position on swallowing functions in the patients who had undergone surgery for oral tumors.
  
  
  METHODS
  53 Patients after oral tumor surgery who had undergone the videofluoroscopic swallowing study in the sitting position and reclining position were sampled. We measured Oral transit time (OTT), Pharyngeal transit time (PTT), Penetration-Aspiration scale, Locating of the leading edge of bolus at swallow onset, Route of bolus transit and Transit velocity.
  
  
  RESULTS
  Laryngeal penetration and aspiration were less likely to occur in the reclining position. The mean OTT was significantly shorter in the reclining position than in the sitting position. The leading edge of bolus at swallow onset was significantly lower in the reclining position than in the sitting position. The bolus went along the posterior wall of the pharynx in more patients in the reclining position. The mean PTT and the transit velocity did not significantly differ between the reclining position and the sitting position.
  
  
  CONCLUSIONS
  This study suggested that, in patients after surgery on oral tumors, the reclining position is a useful posture to aid oral transit and to readily prevent aspiration and laryngeal penetration.
authors.affiliation: Department of Gerodontology, Division of Gerontology and Gerodontology, Graduate School, Tokyo Medical and Dental University.
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Umeda
authors.forename: Shinya
authors.initials: S
authors.lastname: Mikushi
authors.forename: Teruo
authors.initials: T
authors.lastname: Amagasa
authors.forename: Ken
authors.initials: K
authors.lastname: Omura
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Uematsu
mesh_terms: D000368:Aged; D002933:Cineradiography / Q000379:methods; D003679:Deglutition / Q000502:physiology*; D003680:Deglutition Disorders / Q000517:prevention & control; D005260:Female; D057918:Fiducial Markers; D005471:Fluoroscopy / Q000379:methods; D005500:Follow-Up Studies; D005887:Gingival Neoplasms / Q000601:surgery; D006801:Humans; D007013:Hypopharynx / Q000503:physiopathology; D007830:Larynx / Q000503:physiopathology; D008297:Male; D009055:Mouth / Q000503:physiopathology; D009062:Mouth Neoplasms / Q000601:surgery*; D009960:Oropharynx / Q000503:physiopathology; D010614:Pharynx / Q000503:physiopathology; D011187:Posture / Q000502:physiology*; D053120:Respiratory Aspiration / Q000517:prevention & control; D012189:Retrospective Studies; D013997:Time Factors; D014062:Tongue Neoplasms / Q000601:surgery; D014741:Video Recording / Q000379:methods