The Comparison of Thyroarytenoid Muscle Myectomy and Type II Thyroplasty for Spasmodic Dysphonia
| Autor: | Yuri Ueda, Kiyoaki Tsukahara, Mamoru Suzuki, Ujimoto Konomi, Masaki Nomoto, Hiroyuki Hiramatsu, Rei Motohashi, Ryoji Tokashiki, Shun Inoue, Fumimasa Toyomura, Eriko Sakurai |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Voice Quality Spasmodic dysphonia Speech and Hearing Laryngoplasty Young Adult Thyroplasty Postoperative Complications stomatognathic system medicine Humans Thyroarytenoid muscle Young adult Voice Handicap Index Aged Retrospective Studies business.industry Significant difference Retrospective cohort study Surgical procedures Middle Aged LPN and LVN Dysphonia Surgery Treatment Outcome Otorhinolaryngology Female medicine.symptom Laryngeal Muscles business |
| Zdroj: | Journal of voice : official journal of the Voice Foundation. 29(4) |
| ISSN: | 1873-4588 |
| Popis: | Summary Objective Surgical treatments for adductor spasmodic dysphonia include bilateral thyroarytenoid muscle myectomy (TAM) and type II thyroplasty (TPII), both of which are commonly performed. The present study aimed to compare the effects of TAM and TPII. Study Design Retrospective study. Methods Subjects were 30 and 35 patients who underwent TAM and TPII, between March 2008 and November 2012. Voice quality was evaluated based on "voice handicap index 10 (VHI10)" and auditory impressions before and 6 months after surgery using five parameters: "strangulation," "interruption," "tremor," "grade," and "breathiness." Results Comparison of the two procedures revealed significant improvements in VHI10, strangulation, interruption, and tremor, and a significant decline in breathiness after surgery. In particular, VHI10 was improved by more than six points in 90% of patients with TAM, and 96% with TPII. No significant difference was observed between the severities of two procedures preoperatively. Comparison of each postoperative score between the two procedures revealed that TAM significantly improved strangulation, interruption, and tremor, and significantly worsened breathiness, with no significant difference in VHI10. Scatter plots ( x : preoperative scores; y : postoperative scores) and regression lines of evaluation items demonstrated that TAM is more effective than TPII in severe cases. Conclusions Compared with TPII, TAM tends to improve strangulation, interruption, and tremor; however, it tends to worsen breathiness postoperatively. Postoperative VHI10 scores did not differ significantly between the two procedures. Given favorable improvement rates, both surgical procedures were considered effective. |
| Databáze: | OpenAIRE |
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