痙攣性発声障害に対する手術治療の効果に関する検討

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タイトル別名
  • Surgical Treatments for Spasmodic Dysphonia
  • ケイレンセイ ハッセイ ショウガイ ニ タイスル シュジュツ チリョウ ノ コウカ ニ カンスル ケントウ

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Two surgical treatments for adductor spasmodic dysphonia (SD) are thyroarytenoid muscle myectomy (TAM) and type II thyroplasty (TPII). To date, there have been no comparisons of the two surgeries.<br>In this study, we compared the efficacies of the two types of surgery. A total of 14 cases of SD treated surgically from March 2008 to August 2009 were included. TAM was performed on seven cases and TPII on seven. We evaluated treatment effectiveness using the voice handicap index 10 (VHI10) and auditory impressions of strangulation, interruption and tremor measured before surgery and six months after surgery. All 14 cases showed improvement after surgery. Before surgery, there was no difference in the severity of strangulation or tremor between the two surgeries, but there were differences in interruption and VHI. Interruption and VHI before surgery were more severe in patients who underwent TAM. All patients were significantly improved after surgery with TAM, but improvement of interruption and tremor were not significant with TPII. After surgery there were no significant differences between the two surgeries.<br>Both TAM and TPII are considered to be useful choices for treating SD.

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