title: Sudden sensorineural hearing loss and hemostatic mechanisms.
abstract: OBJECTIVE
  To evaluate the possible causal role of pathologic hemostatic mechanisms in sudden hearing loss.
  
  
  METHODS
  The study was prospective.
  
  
  METHODS
  The patients were hospitalized, and all tests were performed at the hospital.
  
  
  METHODS
  Thirty-two consecutive patients with sudden hearing loss participated, as well as a control group of 28 healthy individuals. The control group was matched with regard to body mass index.
  
  
  METHODS
  Venous blood analyses were made regarding general blood parameters, as well as specific hemostatic parameters.
  
  
  RESULTS
  Twenty-five of the patients had some kind of aberration of specific hemostasis parameters; seven patients had an increase in the activity of the plasminogen activator inhibitor 1 (ie, a glycoprotein associated with diminished fibrinolysis) compared with that in the control group (P < .05). Increased plasminogen activator inhibitor levels were most frequently observed among the patients who were overweight. Seven of the oldest patients had an increase of D-dimers, ie, a degradation product of fibrin, and most of these patients had a history of cardiovascular disease.
  
  
  CONCLUSIONS
  Although isolated aberrations in the hemostatic pathway were observed, we concluded that pathologic hemostasis does not seem to have a decisive importance for the pathogenesis of sudden deafness.
authors.affiliation: Department of Otolaryngology--Head and Neck Surgery, Sahlgrenska Hospital, University of Göteborg, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Einer
authors.forename: L
authors.initials: L
authors.lastname: Tengborn
authors.forename: A
authors.initials: A
authors.lastname: Axelsson
authors.forename: S
authors.initials: S
authors.lastname: Edström
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000097:blood* / Q000209:etiology; D006487:Hemostasis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies