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  • Title: Longitudinal Voice Outcomes After Type I Gore-tex Thyroplasty for Nonparalytic Glottic Incompetence.
    Author: Overton L, Adams K, Shah RN, Buckmire RA.
    Journal: Ann Otol Rhinol Laryngol; 2017 Jan; 126(1):14-19. PubMed ID: 27913718.
    Abstract:
    OBJECTIVE: Type I Gore-tex thyroplasty (GTP) for nonparalytic glottic incompetence (GI) results in significantly improved subjective and perceptual voice outcomes. We endeavored to investigate the longitudinal course of voice outcomes measuring the same patients across time points stratified by diagnostic subgroup. METHODS: Seventy-five patients with nonparalytic GI treated with GTP in the past 9 years were retrospectively reviewed and grouped according to their primary diagnoses (atrophy, scar, hypomobility, and paresis). Voice outcome measures, Voice-Related Quality of Life (VRQOL), Glottal Function Index (GFI), and GRBAS (grade, roughness, breathiness, asthenia, and strain) for each individual patient and diagnostic subgroup were grouped by time interval following surgery: 0 to 90 days, 3 to 9 months, 9 to 18 months, 18 to 36 months, 3 to 5 years, and 5 to 10 years. RESULTS: Across all diagnoses, statistically significant improvement in VRQOL was maintained at 3 to 5 years (P = .03) and GFI at 5 to 10 years (P = .02). The GRBAS showed statistically significant improvements out to 18 to 36 months (P = .02). In the subgroup analysis, hypomobility/paresis patients maintained significant improvement voice measures longer than patients with other diagnoses. As a group, scar patients did not show statistically significant postoperative improvement in VRQOL or GFI at any of the tested time points. CONCLUSIONS: Gore-tex thyroplasty provides durable improvement in subjective and perceptual voice outcomes for patients with nonparalytic GI. Patients treated for hypomobility/paresis have the most durable vocal outcomes followed by atrophy and lastly, scar.
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