To explore the clinical value of central lymph node dissection in patients with papillary thyroid carcinoma (PTC) undergoing mesyroidectomy.

The clinical data of 173 PTC patients from October 2017 to April 2019 were collected. According to different surgical methods, they were divided into 2 groups, the conventional group(n=98) underwent routine central lymph node dissection, 75 patients underwent mesangyroidectomy to dissect central lymph nodes . SPSS 24.0 software was used for data analysis of perioperative indicators, PTH, blood calcium and other measurement data were represented by (±s). Independent sample t test. The counting data of postoperative complications, recurrence and metastasis rate were measured by χ² test. P<0.05 was considered statistically significant.

There was no significant difference between the two groups in operation time, intraoperative blood loss, postoperative hospital stay and the number of central lymph node dissection (P>0.05). The mean postoperative follow-up was 12.7 months, and PTH and of all patients returned to normal within 3 months after the operation, without permanent recurrent laryngeal nerve injury or permanent hypoparathyroidism. During the follow-up period, the recurrence and metastasis rate of the conventional group was 5.1%, and that of the mesangial group was 2.7%, with no statistically significant difference (P>0.05).

In the PTC surgery, central lymph node dissection through thyroid mesangial resection has the advantage of low incidence of surgical complications, better protection of parathyroid function, and avoiding excessive decrease of blood calcium level.