Lee, Yoon Se Kim, Yong-Hee Kwon, Minsu Ryu, In Sun Jung, Go-Eun Kim, Seong-Tae Roh, Jong-Lyel Choi, Seung-Ho Kim, Sang Yoon Nam, Soon-Yuhl 2024-01-20T08:33:26Z 2024-01-20T08:33:26Z 2021-08-31 2014-11 0892-1997 https://pubs.kist.re.kr/handle/201004/126217 Objectives. Vocal fold paralysis (VFP) is a frequent complication of surgery of mediastinal structures. This study evaluated the characteristics and short-termtreatment outcomes of injection laryngoplasty for unilateral VFP (UVFP) induced by mediastinal lesions. Methods. The enrolled patients (n = 60) underwent injection laryngoplasty once because of UVFP and were divided into two groups according to cause (group A, thyroidectomy and group B, mediastinal surgery). Voice analysis was performed preoperatively and at 1 month postoperatively. The glottal gap; the Grade, Roughness, Breathiness, Asthenia, and Strain scale; acoustic analysis; and aerodynamic results were measured. Results. Group A and group B comprised eight and 52 patients, respectively. Group B patients were older than group A patients (P < 0.05). The injected volume in group B (0.91 +/- 0.23 mL) was larger than that of group A (0.38 +/- 0.17 mL; P = 0.022). Group B (13.35 +/- 4.69 units) showed a larger glottal gap than group A (6.64 +/- 4.05 units; P = 0.017), and the glottal gap decreased after the procedure. In both groups, most preoperative acoustic parameters except roughness improved after injection laryngoplasty. The preoperative maximum phonation time of group B (2.87 +/- 1.11 seconds) was shorter than that of group A (7.04 +/- 2.58 seconds), and it improved after injection. Mean airflow rate improved significantly after injection in both groups. Conclusions. Mediastinal lesion-induced UVFP is associated with a larger glottal gap than that caused by an injury induced by thyroidectomy. Despite large glottal gap, injection laryngoplasty improves voice outcomes in such types of UVFP. English MOSBY-ELSEVIER LARYNGEAL NERVE CORD PARALYSIS INJECTION LARYNGOPLASTY FUNDAMENTAL-FREQUENCY MEDIALIZATION VOICE ESOPHAGECTOMY AUGMENTATION PRESSURE CANCER Short-Term Treatment Results for Unilateral Vocal Fold Palsy Induced by Mediastinal Lesions Article 10.1016/j.jvoice.2014.04.003 1 JOURNAL OF VOICE, v.28, no.6 JOURNAL OF VOICE 28 6 scie scopus 000344997700022 Audiology & Speech-Language Pathology Otorhinolaryngology Audiology & Speech-Language Pathology Otorhinolaryngology Article LARYNGEAL NERVE CORD PARALYSIS INJECTION LARYNGOPLASTY FUNDAMENTAL-FREQUENCY MEDIALIZATION VOICE ESOPHAGECTOMY AUGMENTATION PRESSURE CANCER Vocal fold paralysis Laryngoplasty Voice quality