• Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China;
KANG Hua, Email: kanghua@xwh.ccmu.edu.cn
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Objective  To investigate the value of sentinel lymph node biopsy (SLNB) in predicting the metastasis of central cervical lymph nodes (CCLN) in differentiated thyroid carcinoma, and to explore reasonable program for CCLN dissection. Methods  This retrospective analysis was performed basing on the clinical data of 407 patients with differentiated thyroid carcinoma who were admitted to the Department of General Surgery of Xuanwu Hospital from June 2013 to December 2016, including 237 patients with microcarcinoma. Results  ① The results of the lymph nodes detection. All patients had detected 7 766 lymph nodes (1 238 metastatic lymph nodes were detected from 219 patients), and 2 085 sentinel lymph nodes were detected (448 metastatic sentinel lymph nodes were detected from 189 patients). In the patients with microcarcinoma, there were 3 614 lymph nodes were detected (390 metastatic lymph nodes were detected from 97 patients), and 1 202 sentinel lymph nodes were detected (149 metastatic sentinel lymph nodes were detected from 82 patients). ② The value of SLNB to predict CCLN metastasis. The sensitivity, specificity, false positive rate, false negative rate, positive predictive value, and negative predictive value of SLNB to predict CCLN metastasis for all patients was 86.30% (189/219), 100% (188/188), 0 (0/189), 13.70% (30/219), 100% (189/189), and 86.24% (188/218) respectively; for patients with microcarcinoma was 84.54% (82/97), 100% (140/140), 0 (0/82), 15.46% (15/97), 100% (82/82), and 90.32% (140/155), respectively. ③ The value of SLNB to predict the presence of additional positive lymph nodes (APLN). The sensitivity, specificity, false positive rate, false negative rate, positive predictive value, and negative predictive value of SLNB to predict the APLN for all patients was 81.48% (132/162), 76.73% (188/245), 23.27% (57/245), 18.52% (30/162), 69.84% (132/189) and 86.24% (188/218), respectively; for patients with microcarcinoma was 73.68% (42/57), 77.78% (140/180), 22.22% (40/180), 26.32% (15/57), 51.22% (42/82) and 90.32% (140/155) respectively. ④ The value of positive sentinel lymph node ratio (PSLNR) to predict the presence of the APLN. The sensitivity, specificity, false positive rate, false negative rate, positive predictive value, and negative predictive value of PSLNR to predict the APLN for all patients was 71.97%, 78.95%, 21.05%, 28.03%, 88.79%, and 54.88% respectively, and the cutoff for PSLNR was 0.345 2. For patients with microcarcinoma, the sensitivity, specificity, false positive rate, false negative rate, positive predictive value, and negative predictive value of PSLNR to predict the APLN was 83.33%, 67.50%, 32.50%, 16.67%, 72.92%, and 79.41% respectively, and the cutoff for PSLNR was 0.291 7. Conclusion  There is an important predicted value of SLNB for CCLN dissection in the patients suffered from differentiated thyroid carcinoma, and the PSLNR is a reliable basis for CCLN dissection.

Citation: ZHAO Jing, LING Yuwei, HAN Jing, ZHAO Ye, WANG Yajun, KANG Hua. The application of sentinel lymph node biopsy for differentiated thyroid carcinoma. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2017, 24(11): 1333-1341. doi: 10.7507/1007-9424.201705112 Copy

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