Conclusions: the modified thyroidectomy by trans-isthmus approach could obviously decrease the operation time, bleeding volume, and rate of injury of recurrent laryngeal nerve and hypocalcemia.

结论：经峡部径路行甲状腺手术可明显缩短手术时间；减少术中出血量，以及降低喉返神经损伤、术后出血、低钙血症等并发症的发生。

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Conclusion: in the operation of thyroid gland, identifying correctly and dissecting safely the recurrent laryngeal nerve may prevent the nerve injury and decrease its occurrence rate.

结论：甲状腺手术中正确辨认并安全地解剖喉返神经可以预防喉返神经损伤，降低喉返神经的损伤率。

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Conclusions in surgical operation of thyroid tumor the injury of the laryngeal recurrent nerve should be avoided.

结论甲状腺肿瘤手术为避免喉返神经损伤，应强调严格按照外科间隙解剖。

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