After the surgery, most of the EGG waveform returned to normal, jitter and shimmer decreased and HNR increased, which indicated that the stability of vocal fold vibration improved, CQ, CQP and CIP got smaller additionally.

• 显微喉镜术后EGG波形多数转为正常 ,且振动的稳定性提高 ( jitter和shimmer降低 ,HNR增加 ) ,CQ、CQP和CIP降低。