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为探讨定量评价喉癌患者行垂直半喉切除术后鼻音变化的方法，选择30例行此术患者按术后时间长短分A、B两组，采用鼻声图仪行声功能检测；并以30例正常人（C组）作对照。结果示：三组鼻音句与非鼻音句的鼻音强度无显著性差异（均P＞0．05）；而〔i：〕音鼻音率A、B两组显著低于C组（分别P＜0．001和P＜0．05），A组又显著低于B组（P＜0．01）。表明喉癌患者行垂直半喉切除术后声功能下降明显，但随时间延长，声道的解剖关系和质地逐渐改善，鼻音率也逐渐向正常发展。提示鼻声图仪可客观定量地评价喉癌患者行垂直半喉切除术后的鼻音变化，进而判断其疗效。
In order to explore the quantitative evaluation of laryngeal cancer patients after vertical resection of the nasal laryngectomy changes in the method selected 30 patients according to the length of time after surgery were divided into groups A and B, Cases of normal (C group) as a control. The results showed that there was no significant difference in the nasal intensity between the three groups of nasal phrases and non-nasal phrases (all P> 0.05); while the scores of nasal and nasal sounds in group A and B were significantly lower than those in group C .001 and P <0.05), A group was significantly lower than the B group (P <0.01). Show that laryngeal cancer patients underwent vertical hemilaryngectomy decreased significantly after the sound function, but with the passage of time, the anatomy and texture of the channel gradually improved, nasal sound rate gradually to normal development. Tips Nasal sonography instrument can be objective and quantitative evaluation of laryngeal cancer patients after vertical semichectomy nasal changes, and then determine its efficacy.