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１９９５ 年１ 月至１９９８ 年１２ 月为１１２ 例声带良性病变者行显微手术，随机分为Ａ、Ｂ两组，Ａ组保留息肉周围的水肿粘膜，Ｂ组不保留粘膜。结果显示，Ａ 组声嘶改善用２．５８±１．１２ｄ，Ｂ组用３．６８±４．６６ｄ，差异有显著性（Ｐ＜ ０．０５）；Ａ 组双侧病变者恢复天数与单侧病变者差异无显著性，Ｂ组则差异有显著性（Ｐ＜ ０．０５），其中７ 例７ｄ 后才缓慢开始恢复，喉声图嗓音分析，Ａ 组术后Ｓｈｉｍ ｍ ｅｒ值改善较快，Ｂ组则改善较慢，其中１ 例Ｓｈｉｍ ｍ ｅｒ值、３ 例ＮＮＥ值的术后远期值均高于术前和正常值，表明Ａ 组发音恢复更快，双侧水肿广泛的病例效果更好，提示显微手术中如能识别和保护正常或病变轻微的粘膜及粘膜下组织，可加快发声功能的改善。
From January 1995 to December 1998, 112 patients with benign vocal cord lesions underwent microsurgery and were randomly divided into A and B groups. A group retained edematous mucosa around polyps, while B group did not retain mucosa. The results showed that the improvement of hoarseness in group A was 2.58 ± 1.12d and in group B was 3.68 ± 4.66d (P <0.05). The number of recovery days in group A with bilateral lesions was significantly higher than that in group B There was no significant difference between the two groups (P> 0.05). There were significant differences between the two groups (P <0.05). Seven of the seven groups recovered slowly after 7 days. Throat sound analysis showed that the Shimmer values in group A improved more rapidly , B group improved slowly, including 1 Shimmer value, 3 cases of NNE value postoperative long-term values were higher than preoperative and normal, indicating that the A group of pronunciation recovery faster, bilateral extensive edema case effect Better, suggesting that microsurgery, such as to identify and protect normal or lesion mild mucous membrane and submucosal tissue, can speed up the sound function improvement.