声带息肉与声带小结患者发声空气动力学研究

Aerodynamic Measure of the Phonation in Patients with Vocal Polyps and Vocal Nodules

目的探讨声带息肉、声带小结患者发声时空气动力学指标的变化。方法采用嗓音功能分析仪(Aerophone II Voice Function Analyzer)对30例声带息肉、28例声带小结患者及30例正常人进行发声空气动力学检测,对平均气流率(mean airflowrate)、口腔压(intraoral pressure)、声门阻力(glottal resistance)、声门效率(glottalefficiency)进行分析、比较。结果声带息肉、声带小结患者的平均气流率、声门阻力、声门效率分别为254.50±36.02 ml/s、33.55±4.63 cmH2O/(L.S)、2.46±1.49和177.45±25.93 ml/s、38.83±8.88 cmH2O/(L.S)、7.75±3.71,与正常人118.44±29.98 ml/s、53.04±8.64 cmH2O/(L.S)、9.17±3.87比较,差异有统计学意义(P<0.01);声带息肉患者声门下压力为8.97±1.36 cmH2O,与正常人6.24±0.99 cmH2O比较,差异有统计学意义(P<0.01);声带息肉与声带小结患者平均气流率、声门下压力和声门效率比较,差异有显著统计学意义(P<0.01)。结论声带息肉患者的声门闭合程度、发声时的效率比声带小结患者更差,空气动力学检测可以对声带息肉、声带小结患者的嗓音功能作出量化的、客观的评价。

Objective To investigate the aerodynamic characteristics of vocal polyps and vocal nodules. Methods Aerodynamic parameters of 58 patients with vocal polyps or vocal nodules and 30 normal adults were measured by Aeropbone lI Voice Function Analyzer. The mean airflow rate, intraoral pressure, glottal resistance, glottal efficiency were compared among different group. Results The mean airflow rate, glottal resistance and glottal efficiency of vocal polyps,vocal nodules and normal adult were 25/1.50±36.02 ml/s, 33. 55 ± 4. 63 cmH2O/（L · S）,2.46±1.49,177.45±25.93 ml/s,38.83±8.88 cmH20/（L · S） ,7.75±3.71,118.44±29.98 ml/s,53. 04±8. 64 cmH2O/ （L · S）,9.17±3.87, respectively. The difference between them was significant（P〈0.01）. The difference of intraoral pressure between vocal polyps （8.97±1.36 cmH2O） and normal adult （6.24±0.99 cmH2O） was significant （P〈0.01）. The mean airflow rate,glottal resistance, glottal efficiency were significantly different between vocal polyps and vocal nodules（P〈0.01）. Conclusion The degree of vocal fold adduct and the effciency of voice production in vocal polyps is worse than that of vocal nodules. The aerodynamic parameters can make quantifiable, objective assessment in voice function of vocal polyps and vocal nodules.