title: The evolving etiology of bilateral vocal fold immobility.
abstract: In the past, bilateral vocal fold immobility (BVFI) occurred most commonly after thyroidectomy. However, no large series documenting the etiology of adult BVFI has been published within the past fifteen years. This study reviews the etiologic patterns of BVFI at our institutions. We compare BVFI from before and after 1980. We also review combined studies of unilateral vocal fold immobility (UVFI) to compare and unilateral versus bilateral etiologic trends. In comparison with previously published series, fewer cases of BVFI present today as a complication of thyroid surgery and more as the result of malignancies and nonsurgical trauma. Unfortunately, BVFI caused by malignancy is not usually an initial sign of local disease, but an ominous sign of recurrence or metastases. In comparing UVFI and BVFI we found that thyroidectomy causes a higher percentage of BVFI than of UVFI. Over one-third of UVFI cases were caused by neoplasm which further underscores the potential seriousness of immobile vocal folds and the need for careful investigation.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA. jfeehery@comcast.net
authors.forename: John M
authors.initials: JM
authors.lastname: Feehery
authors.forename: Edmund A
authors.initials: EA
authors.lastname: Pribitkin
authors.forename: Ryan N
authors.initials: RN
authors.lastname: Heffelfinger
authors.forename: Victor G
authors.initials: VG
authors.lastname: Lacombe
authors.forename: Daniel
authors.initials: D
authors.lastname: Lee
authors.forename: Louis D
authors.initials: LD
authors.lastname: Lowry
authors.forename: William M
authors.initials: WM
authors.lastname: Keane
authors.forename: Robert T
authors.initials: RT
authors.lastname: Sataloff
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014826:Vocal Cord Paralysis / Q000453:epidemiology / Q000209:etiology*