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目的 比较分析手术前后电声门图参数变化，评价甲状软骨成形术治疗男声女调的疗效。方法 １８例男声女调患者，甲状软骨成形手术前后分别作电声门图检查，比较平均基频，噪声能量，谐噪比，信噪比，接触率，开放率，闭合率，基频微扰，振幅微扰等参数在手术前后的差异。结果 手术后平均基频、接触率、闭合率较手术前均有显著性下降（Ｐ＜０．０５），开放率、基频微扰、振幅微扰较手术前则有显著性升高（Ｐ＜０．０５），其余参数手术前后无显著性差异（Ｐ＞０．０５）。结论 手术前后电声门图参数变化结果提示，甲状软骨成形术对男声女调有一定治疗效果，但也可能带来声门闭合不全、声嘶等并发症。
Objective To comparatively analyze the changes of electroencephalographic parameters before and after surgery and evaluate the therapeutic effect of thyroid cartilageoplasty on male voice. Methods Eighteen patients with male and female patients were retrospectively analyzed with electroacupuncture before and after thyroid cartilage formation. The average fundamental frequency, noise energy, signal to noise ratio, contact rate, open rate, closure rate, fundamental frequency perturbation , Amplitude perturbation and other parameters in the preoperative and postoperative differences. Results The average fundamental frequency, contact rate and occlusion rate after operation were significantly lower than those before operation (P <0.05). The open rate, frequency perturbation and amplitude perturbation were significantly higher than those before operation (P <0.05). There was no significant difference in other parameters before and after operation (P> 0.05). Conclusions The results of electroencephalographic parameters before and after surgery suggest that thyroid cartilage may have some therapeutic effects on male voice, but may also result in complications such as glottis insufficiency and hoarseness.