The role of glottal gap in predicting aspiration in patients with unilateral vocal paralysis

Tuan Jen Fang, H. Y. Li, F. C. Tsai, I. H. Chen

Research output: Contribution to journalReview articlepeer-review

23 Citations (Scopus)


Aspiration has been frequently noted among patients suffering from vocal-fold paralysis. The association between a defect of glottal closure and aspiration in patients with unilateral vocal paralysis appears to have been rarely reported. The current study reviews collected data consisting of videotaped flexible nasoendoscopy and stroboscopy for patients with a unilateral vocal-fold paralysis. Mean normalized glottal gap areas for patients suffering vocal paralysis with associated aspiration are significant greater than that for the non-aspiration group. Subsequent to the surgical correction of the glottal gap, all patients recovered well from their earlier aspiration. The investigation of objectively derived data revealed that poor airway protection due to incomplete closure of the vocal fold was the major cause of aspiration for patients suffering unilateral vocal-fold paralysis. Intracordal autologous fat injection can successfully improve the breath control and eliminate aspiration in patients with vocal-fold paralysis.

Original languageEnglish
Pages (from-to)709-712
Number of pages4
JournalClinical Otolaryngology and Allied Sciences
Issue number6
Publication statusPublished - Dec 2004
Externally publishedYes


  • Aspiration
  • Glottal gap area
  • Intracordal fat injection
  • Vocal paralysis

ASJC Scopus subject areas

  • Otorhinolaryngology


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