Pre-ablation stimulated thyroglobulin is a better predictor of recurrence in pathological N1a papillary thyroid carcinoma than the lymph node ratio

被引:10
作者
Chang, Young Woo [1 ]
Kim, Hwan Soo [1 ]
Jung, Seung Pil [1 ]
Kim, Hoon Yub [1 ]
Lee, Jae Bok [1 ]
Bae, Jeoung Won [1 ]
Son, Gil Soo [1 ,2 ]
机构
[1] Korea Univ, Dept Surg, Coll Med, Seoul, South Korea
[2] Korea Univ, Dept Breast Endocrine Surg, Med Ctr, 123 Jeokgeumro, Ansan 425707, Gyeonggi, South Korea
关键词
Papillary thyroid carcinoma; Lymph node ratio; Thyroglobulin; CENTRAL NECK DISSECTION; SERUM THYROGLOBULIN; FOLLOW-UP; CANCER; THERAPY; METASTASIS; SYSTEM; TUMOR;
D O I
10.1007/s10147-016-0956-2
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Papillary thyroid carcinomas (PTC) with lymph node metastases have a high recurrence rate. We analyzed the potential of lymph node ratio (LNR) and the level of pre-ablation stimulated thyroglobulin (sTg) as risk factors predicting recurrence in patients with pathological N1a PTC. This study involved 192 patients with pathologically confirmed PTC and central neck lymph node metastases who underwent total thyroidectomy with central lymph node dissection (CLND). The clinico-pathological characteristics, the pre-ablation sTg level and post-treatment recurrences were examined. Univariate and multivariate analyses were performed to identify factors associated with recurrence in these patients. During a median follow-up of 63 months, 17 patients had loco-regional recurrences. Receiver operating characteristic curve analysis showed that the appropriate cut-off values for LNR and the pre-ablation sTg level was 0.48 and 9.3 ng/mL, respectively. Patients with LNR values of aeyen0.48 had a significantly worse disease-free survival (DFS) than those with LNR values of < 0.48 (P = 0.015), and patients with pre-ablation sTg level values of aeyen9.3 ng/mL had significantly worse DFS than those with pre-ablation sTg level values < 9.3 ng/mL (P < 0.001). Relative to patients with LNR values of < 0.48, those with LNR values of aeyen0.48 had higher median pre-ablation sTg level values (0.55 vs. 4.20; P < 0.001). The correlation covariant between the LNR value and the pre-ablation sTg level value was r = 0.454 (P < 0.001). Multivariate analysis showed that a LNR value of aeyen0.48 (P = 0.386) was not an independent risk factor for recurrence. To the contrary, a pre-ablation sTg level value of aeyen9.3 ng/mL (P < 0.001) was an independent risk factor for recurrence. A high pre-ablation sTg level is a better predictor of recurrence in pathological N1a PTC than a high LNR value. Careful follow-up of patients with this risk factor is recommended.
引用
收藏
页码:862 / 868
页数:7
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