title: The cause and evaluation of unilateral vocal cord paralysis.
abstract: BACKGROUND
  Unilateral vocal cord paralysis (UVCP) is a common finding in the practice of otolaryngology. It usually presents with hoarseness, although more severe symptoms may include aspiration, choking or pneumonia.
  
  
  OBJECTIVE
  To evaluate the etiology, outcomes and sensitivity of diagnostic tests.
  
  
  METHODS
  Patients with UVCP.
  
  
  METHODS
  Department of Otolaryngology, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University.
  
  
  METHODS
  Descriptive study.
  
  
  RESULTS
  Ninety patients with UVCP were encountered between 1994 and 1998. The left vocal cord was involved in 73 per cent of cases and the right vocal cord in 27 per cent. The causes were neoplasm (29%), postoperative (24%), inflammation (21%), trauma from endotracheal intubation and external laryngeal trauma (8%), central (5%) and idiopathic causes (13%). Among the 13 post-thyroid surgical cases, three had a complete recovery, seven had compensation and three had no recovery and no compensation. Two trauma cases were caused by intubation, both had a complete recovery. Follow-up of these were over periods of one and three months, respectively.
  
  
  CONCLUSIONS
  Thirty nine per cent of chest X-rays were positive. This was the only useful diagnostic test.
authors.affiliation: Department of Otolaryngology, Faculty of Medicine, Khon Kaen University, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Srirompotong
authors.forename: P
authors.initials: P
authors.lastname: Sae-Seow
authors.forename: S
authors.initials: S
authors.lastname: Srirompotong
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014826:Vocal Cord Paralysis / Q000175:diagnosis* / Q000209:etiology*