扁桃体肥大患者手术前后发声共鸣特征分析

摘要

Objective To study the influence of tonsillectomy on resonance characteristics of four resonance cavity in patients with tonsil hypertrophy (II or III degree) .Methods Using multi-channel voice analysis system to test the cavity resonance characteristics and energy distribution of 38 tonsil hypertrophy male patients (including pre- and one month of post-operative) and 40 normal males when they speak /a:/.The frequency spectrum was 4 000 Hz(FR1 ,FR2 ,FR3 ,FR4 ) .Results FR2 ,FR3 energy values of the head cavity and mouth cavity ,and FR2 energy values of the thoracic cavity increased to the level of the normal control group after tonsillectomy(P<0 .05) .FR1 energy values of head ,mouth and thoracic cavity decreased to the level of the normal control group after tonsillecto‐my(P<0 .05) .FR1 ,FR2 ,FR3 ,FR4 energy values of laryngeal cavity maintained the normal level ,including pre- and post - operation .Conclusion Tonsillectomy makes oropharyngeal cavity volume expanded and airflow channel broaden .Tonsillectomy mainly maks high-frequency resonance of head and mouth cavities recovered to the normal level after about one month .%目的：探讨扁桃体肥大患者扁桃体切除手术前后发声的共鸣特征变化。方法使用多通道语音分析系统测试38例8～20岁男性扁桃体肥大患者（扁桃体肥大组，II度大25例，III度大13例）扁桃体切除术前、术后一个月及40例7～22岁正常男性（正常对照组）发／a：／音时头腔、口腔、喉腔、胸腔共鸣频谱特征，分别统计0～999 Hz（FR1）、1000～1999 Hz（FR2）、2000～2999 Hz（FR3）、3000～4000 Hz（FR4）频段的能量分布。结果扁桃体肥大组术后一个月，头腔和口腔FR2、FR3能量值、胸腔FR2能量值较术前提高（ P＜0．05），与正常对照组差异无统计学意义（P＞0．05），头腔、口腔、胸腔FR1能量值较术前下降（P＜0．05），与正常对照组差异无统计学意义（P＞0．05），术后喉腔FR1～FR4能量值与术前及对照组比较差异无统计学意（P＞0．05）。结论扁桃体肥大患者扁桃体切除术后口咽腔的体积扩大、气流通道增宽，改变了头腔、口腔的高频共振，且术后一个月左右均恢复至正常水平。