The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Long-term voice outcomes after thyroplasty for unilateral vocal fold paralysis.
In Sun Ryu; Soon Yuhl Nam; Myung Woul Han; Seung-Ho Choi; Sang Yoon Kim; Jong-Lyel Roh (Profiled Author: Jong Lyel Roh)
Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Archives of otolaryngology--head & neck surgery 2012;138(4):347-51.
OBJECTIVES: To investigate the long-term clinical efficacy and stability of thyroplasty type I for unilateral vocal cord palsy, and to identify the appropriate timing of posttreatment evaluations for determination of long-term voice outcome. Study DESIGN: Single-institution retrospective study. SETTING: Academic tertiary referral centers in Korea. PATIENTS: Forty patients with unilateral vocal cord palsy who underwent thyroplasty from January 1, 1996, through December 31, 2006, and were followed up for at least 5 years after the surgical procedure. INTERVENTIONS: Thyroplasty type I under local anesthesia. MAIN OUTCOME MEASURES: Acoustic and aerodynamic analyses of voice were performed on the day before the operation and at preset intervals afterward. Two blinded speech-language pathologists performed the perceptual evaluation. RESULTS: The GRBAS scale (grade of hoarseness, roughness, breathiness, asthenia, and strain) values showed significant improvement at 6 months after the operation (P < .05); these improvements continued up to 1 year and were maintained 5 years after the operation. Acoustic measurements of shimmer and jitter began to show significant improvement at 6 months after the operation, and fundamental frequency and noise harmonic ratios evidenced significant improvement at 1 year (P < .05); these improvements were maintained, to a significant extent, at 5 years after the operation. Aerodynamically, the maximum phonation time, glottal flow rate, and peak subglottic pressure improved significantly from before the operation to 6 months and 1 year after the operation, attaining near-normal values at 1 year afterward (P < . 05) CONCLUSIONS: Thyroplasty type I may provide evidence that voice outcome progressively evolves during the first years after the surgical procedure, and that subsequent vocal improvement presented long-lasting stabilization. To assess the long-term voice quality, it may be enough to perform the voice evaluation at 1 year after the procedure.
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