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为客观定量评价喉癌垂直部分喉切除术后患者的发音功能，采用喉声气流仪分别对行垂直半喉切除术后的喉癌患者30例（按术后2年，3～10年分为A、B两组），和正常男性（C组）30例进行声功能测试。结果显示：A、B组与C组比较平均气流率（MFR）、声强、最长发音时间（MPT）有极显著性差异（P＜0．01）；发声频率之间有显著性差异（P＜0．05）；A组与B组比较其声强、MFR、MPT有极显著性差异（P＜0．01）。提示：此方法是客观评估喉癌术后声功能的一种有效手段。
Objective To quantitatively evaluate the vocal function of patients with laryngectomy after laryngectomy in the laryngeal squamous cell carcinoma. Throat air flow meter was used to evaluate the laryngeal squamous cell carcinoma of the larynx after vertical laryngectomy in 30 patients (2 and 3 to 10 years A, B two groups), and normal male (C group) 30 cases of acoustic function test. The results showed that the mean air flow rate (MFR), sound intensity and maximum voice time (MPT) were significantly different between group A and B (P <0.01) and group C (P <0.01) P <0.05). There was a significant difference in sound intensity, MFR and MPT between group A and group B (P <0.01). Tip: This method is an objective assessment of the acoustic function of laryngeal cancer after an effective means.