Abstract: Objective To study the regression factors of recurrent laryngeal nerve deep lymph node metastasis in papillary thyroid carcinoma patients.Methods 98 papillary thyroid carcinoma patients treated from August 2020 to August 2021 in our hospital were chosen as research subjects.According to the occurrences of recurrent laryngeal nerve deep lymph node metastasis,patients were divided into metastasis group and non-metastasis group.General data was acquired.Logistic regression equation was used to analyze the regression factors of recurrent laryngeal nerve deep lymph node metastasis.Results Among 98 papillary thyroid carcinoma patients,there were 36 metastasis cases (36.73%) and 62 non-metastasis cases (63.27%).The lesion number,tumor diameter,envelope invasions and surgical modes between metastasis group and non-metastasis group were found to be statistically significant (P<0.05);there were no significant differences about the gender,age,lesion positions and complications of hashimoto thyroiditis between metastasis group and non-metastasis group (P>0.05).Logistic regression equation indicated that the influence factors of recurrent laryngeal nerve deep lymph node metastasis were the lesion number,tumor diameter,envelope invasions and surgical modes.Conclusion There are multiple influence factors about recurrent laryngeal nerve deep lymph node metastasis,including lesion number,tumor diameter,envelope invasions and surgical modes.Therefore,the proper interventions shall be taken to decrease the occurrences of recurrent laryngeal nerve deep lymph node metastasis.

Key words: papillary thyroid carcinoma, recurrent laryngeal nerve, lymph node, metastasis, analyze factors