目的 探讨声带小结患者支撑喉镜下显微手术前后嗓音声学分析指标的变化.方法 采用Xion声学分析软件对45例女性声带小结患者术前1天及术后第1周、第2周、第3周进行嗓音声学分析,并与45例正常对照组对比.结果 声带小结患者术前基频微扰(jitter)、振幅微扰(shimmer)均高于正常对照组,嗓音障碍指数 (DSI)低于正常对照组,差异均有统计学意义(P<0.01);术后1周患者的振幅微扰及基频微扰与术前1天相比均有一定程度降低,振幅微扰与术前相比差异有统计学意义(P<0.05),但基频微扰及DSI与术前相比差异无统计学意义(P>0.05);术后2周与术前1天比较,各声学参数值差异均有统计学意义(P<0.05),且与正常对照组相比无统计学意义(P>0.05);术后3周与术后第2周相比,三项声学指标差异无统计学意义(P>0.05).结论 声带小结患者术后各阶段嗓音恢复程度不同,术后二周嗓音声学分析结果趋于正常,基频微扰、振幅微扰及DSI可以作为声带小结手术疗效评价的敏感指标.%Objective To investigate the acoustic parameters of the voice prc and post laryngoscope under microscopic surgery for vocal nodules, and to provide the theoretical basis for clinical application to the detection of post operative patients with vocal nodules. Methods Using Xion acoustic analysis software, the voice acoustic parameters from 45 patients with vocal nodules were obtaincal before surgery, one, two and three weeks after surgery, and compared with the control group. Results Jitter,Shimmer and DSI values of 45 patients with vocal nodules were abnormal, significanly different from the normal control groupCP^O. 01). One week after operation, Jitter and Shimmer values were lower than before surgery. Shimmer values showed significant difference prc and one week after surgcry(P>0. 05) ,but Jitter and DSI showed no significant diffcrcncc(P<0. 05). Two weeks after surgery, all the acoustic parameters were significantly different from before surgery, and in comparison, there was no significant diffcrcnccCP^O. 05). Three acousticparamctcrs had no significant difference between two weeks and three weeks after surgcry(P>0. 05). Conclusion The acoustic parameters of patients with vocal nodules have obvious difference with the control group, and the degrees of recovery after operation arc different. Jitter,Shimmer and DSI values can be used as sensitive indicators for surgery prognosis of vocal nodules.
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