Korean J Otolaryngol-Head Neck Surg.
2000 Mar;43(3):318-322.
Voice and Imaging Analysis After Thyroplasty Type l in the Treatment of Unilateral Vocal Paralysis
- Affiliations
-
- 1Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, korea. synam@amc.seoul.kr
Abstract
-
BACKGROUND AND OBJECTIVES:There are several methods to improve voice quality in the patients with paralyzed vocal cord, such as thyroplasty type I, injection, arytenoid adduction. The goal of surgical medialization of the paralyzed vocal fold is to attain complete glottic closure. The purpose of this study is to evaluate the effectiveness of thyroplasty type I through qualifying the vocal function and glottal gap.
MATERIALS & METHODS: We experienced 20 cases of unilateral vocal fold paralysis who underwent thyroplasty type I. We performed preoperative and postoperative videoimage analysis (normalized glottal gap area) and computer-assisted voice analysis in all patients.
RESULTS
The glottal gap was significantly reduced after thyroplasty type I. Postoperative voice quality was characterized by an improved pitch and amplitude perturbation (jitter and shimmer), maximum phonation time and subglottic pressure . But noise to harmonic ratio was not improved.
CONCLUSION
Thyroplasty type I is an effective method in the point of regaining glottal closure and vocal function.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Effects of Arytenoid Adduction and Type I Thyroplasty Combined Surgery for Unilateral Vocal Cord Paralysis
- Comparison of Vocal Outcome after Autologous Fat Injection and Medialization Thyroplasty for Unilateral Vocal Cord Paralysis
- Medialization Thyroplasty Using Autologous Nasal Septal Cartilage for Treating Unilateral Vocal Fold Paralysis
- Arytenoid Adduction and Thyroplasty on 22 Cases of Unilateral Vocal Cord Paralysis
- Laryngeal Framework Surgery for Unilateral Vocal Fold Paralysis
