Tsuji Domingos Hiroshi, Chrispim Fernanda Silveira, Imamura Rui, Sennes Luiz Ubirajara, Hachiya Adriana
Department of Otolaryngology, University Hospital, Medical School of the University of São Paulo, FMUSP, Brazil.
Braz J Otorhinolaryngol. 2006 Mar-Apr;72(2):261-6. doi: 10.1016/s1808-8694(15)30066-5.
Impact in vocal quality in partial myectomy and neurectomy endoscopic of thyroarytenoid muscle in patients with adductor spasmodic dysphonia the adductor spasmodic dysphonia is a severe vocal disorder characterized by muscle laryngeal spasms during speech, producing phonatory breaks, forced, strained and strangled voice. Its symptoms come from involuntary and intermittent contractions of thyroarytenoid muscle during speech, which causes vocal fold strain, pressed one against another and increased glottic resistance.
report the results in the impact in vocal quality in neurectomy of the thyroarytenoid branch of the inferior laryngeal nerve by endoscopic route associated with partial myectomy of the thyroarytenoid muscle with co2 laser.
the surgery was done in 07 patients (06 females and 01 male), aged 22 to 75, with adductor spasmodic dysphonia. They were submitted to vhi (voice handicap index) before and after surgery.
the vocal improvement was obtained in all studied patients, deterioration in vocal quality after surgery was not noticed. There was evident difference in the vhi before and after surgery. This surgical technique proved to be efficient and innovative in the treatment of adductor spasmodic dysphonia.
内收肌痉挛性发声障碍患者行甲状杓肌部分肌切除术及喉下神经甲状杓肌支神经切除术对嗓音质量的影响 内收肌痉挛性发声障碍是一种严重的嗓音疾病，其特征为说话时喉部肌肉痉挛，产生发声中断、声音用力、紧张和憋闷。其症状源于说话时甲状杓肌不自主间歇性收缩，导致声带紧张、相互挤压并增加声门阻力。
报告经内镜途径行喉下神经甲状杓肌支神经切除术联合二氧化碳激光甲状杓肌部分肌切除术对嗓音质量的影响结果。
对7例（6例女性，1例男性）年龄在22至75岁的内收肌痉挛性发声障碍患者进行手术。术前及术后对他们进行嗓音障碍指数（VHI）评估。
所有研究患者的嗓音均有改善，未发现术后嗓音质量恶化。术前及术后的嗓音障碍指数有明显差异。这种手术技术在治疗内收肌痉挛性发声障碍方面被证明是有效且创新的。
