Safety and Efficacy of Outpatient Type 1 Thyroplasty Using Gore-Tex for Mobile Vocal Folds

Abstract

Introduction: Type 1 thyroplasty treats glottic insufficiency (GI) through vocal fold medialization. The safety of type 1 thyroplasty and its efficacy in an outpatient setting have not been investigated in patients with mobile vocal folds. Objective: The purpose of this study was to investigate efficacy and safety of outpatient type 1 thyroplasty using Gore-Tex for mobile vocal folds. Methods: Patients from our voice center who had vocal fold paresis, had not had prior thyroplasty, and who underwent type 1 thyroplasty using Gore-Tex implants and were followed for at least 3 months were included in this retrospective study. Strobovideolaryngoscopy footage from each patient’s preoperative and postoperative visits was compiled and de-identified. Three blinded physician raters reviewed and evaluated the videos to determine glottic closure and complications. Interrater reliability was moderate and intrarater reliability was good for GI. Results: A total of 108 patients with an average age of 49.6 years were included in the retrospective cohort. GI improved significantly in patients from preoperative to first postoperative visit and from preoperative to second postoperative visit. The GI improvement from the second to third visit was not significant. In total, 33 patients underwent additional Thyroplasty, 12 due to revision from a complication and 25 for further voice improvement. There were no major complications seen. Within 1 month of surgery, the most frequent findings were edema and hemorrhage. Long-term complications evaluated by raters were reported inconsistently with poor interrater and intrarater reliability, and therefore were excluded. Conclusion: Overall, outpatient type 1 thyroplasty using a Gore-Tex implant is safe and effective in treating dysphonia due to GI in patients with vocal fold paresis and mobile vocal folds. There were no major complications within 1 week of surgery requiring hospitalization, supporting the literature that type 1 thyroplasty is safe to perform in the outpatient setting.