title: [A clinical study on sudden deafness in juveniles].
abstract: OBJECTIVE
  To understand the clinical characteristics, treatment efficacy and the main factors affecting the prognosis of sudden deafness in juveniles.
  
  
  METHODS
  Clinical data of thirty-four cases about juvenile with sudden deafness were respectively analysesed.
  
  
  RESULTS
  1) The number of male cases is as about four times as that of female cases, nearly one-third of the cases had a history of virus infection. 2) The total effective rate was 52.4%. The significantly differences among the different modalities were not found. 3) An association was found between the prognosis and the sex, the type of primary audiogram, the course of disease and the degree of hearing loss. The threshold of hearing at 4,000 Hz. was found valuable to judge the prognosis of sudden deafness in juveniles. The influence of the vertigo and tinnitus was not remarkable.
  
  
  CONCLUSIONS
  Some aspects of sudden deafness in juvenile were similar to that in adult, however, there are also some special characteristics about it.
authors.affiliation: First Affiliated Hospital of NanJing Medical University, Nanjing 210029.
authors.forename: H
authors.initials: H
authors.lastname: Shi
authors.forename: L
authors.initials: L
authors.lastname: Cheng
mesh_terms: D000293:Adolescent; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D002648:Child; D005260:Female; D003639:Hearing Loss, Sudden / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D006801:Humans; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies; D012737:Sex Factors