title: Dysphagia in Duchenne muscular dystrophy versus myotonic dystrophy type 1.
abstract: BACKGROUND
  In this study we aimed to demonstrate the distinctive features of dysphagia in patients with myotonic dystrophy type 1 (DM1) and Duchenne muscular dystrophy (DMD).
  
  
  METHODS
  Diet-type score (DTS) and maximum tongue pressure (MTP) were measured in 20 DM1 and 24 DMD patients; all patients were also examined by videofluoroscopy (VF). We used VF to measure the range of hyoid bone excursion (RHBE) during pharyngeal transit time and the area of pharyngeal residue (APR) after the first swallow.
  
  
  RESULTS
  RHBE and APR values for DM1 patients were significantly greater than those for DMD patients. DTS and MTP did not differ between patients. A significant correlation was observed between DTS, MTP, and RHBE in DMD patients, but not in DM1 patients.
  
  
  CONCLUSIONS
  Our findings reveal the differences in the distinctive features of dysphagia in DM1 and DMD. Adjustments in the diet of DMD patients in accordance with swallowing ability could be useful.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan. george@minf.med.fukuoka-u.ac.jp
authors.forename: George
authors.initials: G
authors.lastname: Umemoto
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Furuya
authors.forename: Akio
authors.initials: A
authors.lastname: Kitashima
authors.forename: Mitsuaki
authors.initials: M
authors.lastname: Sakai
authors.forename: Hajime
authors.initials: H
authors.lastname: Arahata
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Kikuta
mesh_terms: D000328:Adult; D003680:Deglutition Disorders / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020388:Muscular Dystrophy, Duchenne / Q000150:complications / Q000503:physiopathology*; D009223:Myotonic Dystrophy / Q000150:complications / Q000503:physiopathology*; D011859:Radiography; D055815:Young Adult