title: Pathophysiology of the Eustachian tube--relevant new aspects for the head and neck surgeon.
abstract: OBJECTIVE
  The impact of cranio-maxillofacial procedures upon Eustachian tube function is still largely unknown. The aim of this presentation is to depict new aspects of Eustachian tube function and to demonstrate its importance to cranio-maxillofacial surgery.
  
  
  METHODS
  Two different groups of patients were examined both clinically and by MRI of the Eustachian tube region. One of these groups comprised 15 adult patients with a history of cleft palate; another consisted of 32 patients with a history of a so-called patulous Eustachian tube.
  
  
  RESULTS
  Clinical and MRI-findings revealed that the problem of persistent chronic middle ear disease with cleft palate patients depends crucially on the integrity of the pterygoid hamulus and of the tensor veli palatini muscle after cleft palate repair. The masticatory muscles on the other hand also play an important role in Eustachian tube function in non-cleft patients.
  
  
  CONCLUSIONS
  The maxillofacial surgeon should be aware that he holds a key position for preventing as well as treating Eustachian tube pathophysiology.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Hamburg Medical School, Germany. sehhati@uke.uni-hamburg.de
authors.forename: Susanne
authors.initials: S
authors.lastname: Sehhati-Chafai-Leuwer
authors.forename: Sören
authors.initials: S
authors.lastname: Wenzel
authors.forename: Reinhard
authors.initials: R
authors.lastname: Bschorer
authors.forename: Hartwig
authors.initials: H
authors.lastname: Seedorf
authors.forename: Thomas
authors.initials: T
authors.lastname: Kucinski
authors.forename: Hannes
authors.initials: H
authors.lastname: Maier
authors.forename: Rudolf
authors.initials: R
authors.lastname: Leuwer
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D002971:Cleft Lip / Q000601:surgery*; D002972:Cleft Palate / Q000601:surgery*; D004427:Ear Diseases / Q000209:etiology*; D004432:Ear, Middle; D005064:Eustachian Tube / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D019647:Oral Surgical Procedures / Q000379:methods*; D011626:Pterygoid Muscles / Q000033:anatomy & histology / Q000502:physiology*