Background： Postoperative preablative stimulated thyroglobulin （ps-Tg） has been evaluated in predicting prognosis and success of ablation regarding differentiated thyroid cancer （DTC）; however, its relationship w...Background： Postoperative preablative stimulated thyroglobulin （ps-Tg） has been evaluated in predicting prognosis and success of ablation regarding differentiated thyroid cancer （DTC）; however, its relationship with recurrence risk and radioiodine decision-making remains uncertain, especially in Chinese DTC patients. We aimed to evaluate the association between ps-Tg and recurrence risk stratification in DTC, to provide incremental values for ps-Tg in postoperative assessment and radioiodine management. Methods： Seven hundred and seven patients with DTC were included; low-risk （L; n = 90）, intermediate-risk （I; n = 283）, and high-risk （H; n = 334, 117 with distant metastasis [M 1 ]） patients were divided according to recurrence risk stratification. The M 1 group was further analyzed regarding evidence of metastasis. Cut-off values of ps-Tg were obtained using receiver operating characteristic analysis. Results： Patients with more advanced disease at initial risk stratification were more likely to have higher ps-Tg levels （I vs. L： P 〈 0.05; H vs. 1： P 〈 0.001; H vs. L： P 〈 0.001）. The corresponding cut-off value of ps-Tg for distinguishing sensitivity and specificity in each of the two groups was 2.95 ng/ml （1 vs. L： 61.5%, 63.3%）, 29.5 ng/ml （H vs, I： 41.9%, 92.6%）, 47.1 ng/ml （M1 vs. M0 in the H group： 79.5%, 88.9%） and 47.1 ng/ml （MI vs. M0 in all patients： 79.5%, 93.7%）. With the cut-offvalue at 47.1 ng/ml, ps-Tg was the only factor that could be used to identify distant metastases, and consequently if measured before radioiodine therapy would prevent 10.26% of patients with M1 from undertreatment, Conclusions： Ps-Tg, as an ongoing reassessment marker, favors differential recurrence risk grading and provides incremental values for radioiodine treatment decision-making.展开更多
目的探讨甲状腺全切术后、^131I治疗前刺激性甲状腺球蛋白(psTg)阴性伴^131I治疗后SPECT/CT显像示淋巴结显影的分化型甲状腺癌(DTC)患者的治疗反应及其影响因素。方法回顾性纳入2016年5月至2018年10月间在青岛大学附属医院首次行^131I...目的探讨甲状腺全切术后、^131I治疗前刺激性甲状腺球蛋白(psTg)阴性伴^131I治疗后SPECT/CT显像示淋巴结显影的分化型甲状腺癌(DTC)患者的治疗反应及其影响因素。方法回顾性纳入2016年5月至2018年10月间在青岛大学附属医院首次行^131I治疗的psTg阴性(<2μg/L)且^131I治疗后5~6 d SPECT/CT显像示淋巴结显影的DTC术后患者108例[男28例、女80例,年龄(45.7±10.4)岁],根据治疗后6~24个月治疗反应将患者分为疗效满意(ER)组与非ER组,采用两独立样本t检验、χ^2检验和Mann-Whitney U检验进行2组间年龄、性别、腺外浸润等多个因素差异的比较,再行多因素logistic回归分析判断治疗反应的影响因素;采用受试者工作特征(ROC)曲线评估显影淋巴结大小(长径)对非ER的预测价值。结果108例患者中82例(75.93%)为ER组,26例(24.07%)为非ER组,2组患者在年龄(t=-2.540,P=0.016)、腺外浸润(χ^2=5.764,P=0.016)、T分期(χ^2=19.857,P<0.001)、N分期(χ^2=14.145,P=0.001)、复发风险分层(χ^2=11.487,P=0.003)、治疗前超声结果(χ^2=44.819,P<0.001)、首次^131I剂量(U=780.0,P=0.018)、显影淋巴结大小(U=184.0,P<0.001)、psTg水平(U=776.0,P=0.037)方面差异有统计学意义。多因素logistic回归分析示,年龄、显影淋巴结大小和治疗前超声结果与治疗反应密切相关,其比值比[OR(95%CI)]分别为:1.123(1.025~1.231)、4.275(1.893~9.653)和260.86(8.123~8376.764)。显影淋巴结大小以5.5 mm为界值时预测非ER的灵敏度、特异性、准确性、阳性预测值和阴性预测值分别为100%(26/26)、70.73%(58/82)、77.78%(84/108)、52.00%(26/50)和100%(58/58)。结论首次^131I治疗后淋巴结显影伴治疗前psTg阴性的DTC患者中有部分患者治疗反应未达ER;年龄、治疗前超声、显影淋巴结大小可作为预测其治疗反应的灵敏指标。展开更多
基金This study was supported by grants from the National Natural Science Foundation of China，the Ministry of Health Industry Special Scientific Research Project
文摘Background： Postoperative preablative stimulated thyroglobulin （ps-Tg） has been evaluated in predicting prognosis and success of ablation regarding differentiated thyroid cancer （DTC）; however, its relationship with recurrence risk and radioiodine decision-making remains uncertain, especially in Chinese DTC patients. We aimed to evaluate the association between ps-Tg and recurrence risk stratification in DTC, to provide incremental values for ps-Tg in postoperative assessment and radioiodine management. Methods： Seven hundred and seven patients with DTC were included; low-risk （L; n = 90）, intermediate-risk （I; n = 283）, and high-risk （H; n = 334, 117 with distant metastasis [M 1 ]） patients were divided according to recurrence risk stratification. The M 1 group was further analyzed regarding evidence of metastasis. Cut-off values of ps-Tg were obtained using receiver operating characteristic analysis. Results： Patients with more advanced disease at initial risk stratification were more likely to have higher ps-Tg levels （I vs. L： P 〈 0.05; H vs. 1： P 〈 0.001; H vs. L： P 〈 0.001）. The corresponding cut-off value of ps-Tg for distinguishing sensitivity and specificity in each of the two groups was 2.95 ng/ml （1 vs. L： 61.5%, 63.3%）, 29.5 ng/ml （H vs, I： 41.9%, 92.6%）, 47.1 ng/ml （M1 vs. M0 in the H group： 79.5%, 88.9%） and 47.1 ng/ml （MI vs. M0 in all patients： 79.5%, 93.7%）. With the cut-offvalue at 47.1 ng/ml, ps-Tg was the only factor that could be used to identify distant metastases, and consequently if measured before radioiodine therapy would prevent 10.26% of patients with M1 from undertreatment, Conclusions： Ps-Tg, as an ongoing reassessment marker, favors differential recurrence risk grading and provides incremental values for radioiodine treatment decision-making.
文摘目的探讨甲状腺全切术后、^131I治疗前刺激性甲状腺球蛋白(psTg)阴性伴^131I治疗后SPECT/CT显像示淋巴结显影的分化型甲状腺癌(DTC)患者的治疗反应及其影响因素。方法回顾性纳入2016年5月至2018年10月间在青岛大学附属医院首次行^131I治疗的psTg阴性(<2μg/L)且^131I治疗后5~6 d SPECT/CT显像示淋巴结显影的DTC术后患者108例[男28例、女80例,年龄(45.7±10.4)岁],根据治疗后6~24个月治疗反应将患者分为疗效满意(ER)组与非ER组,采用两独立样本t检验、χ^2检验和Mann-Whitney U检验进行2组间年龄、性别、腺外浸润等多个因素差异的比较,再行多因素logistic回归分析判断治疗反应的影响因素;采用受试者工作特征(ROC)曲线评估显影淋巴结大小(长径)对非ER的预测价值。结果108例患者中82例(75.93%)为ER组,26例(24.07%)为非ER组,2组患者在年龄(t=-2.540,P=0.016)、腺外浸润(χ^2=5.764,P=0.016)、T分期(χ^2=19.857,P<0.001)、N分期(χ^2=14.145,P=0.001)、复发风险分层(χ^2=11.487,P=0.003)、治疗前超声结果(χ^2=44.819,P<0.001)、首次^131I剂量(U=780.0,P=0.018)、显影淋巴结大小(U=184.0,P<0.001)、psTg水平(U=776.0,P=0.037)方面差异有统计学意义。多因素logistic回归分析示,年龄、显影淋巴结大小和治疗前超声结果与治疗反应密切相关,其比值比[OR(95%CI)]分别为:1.123(1.025~1.231)、4.275(1.893~9.653)和260.86(8.123~8376.764)。显影淋巴结大小以5.5 mm为界值时预测非ER的灵敏度、特异性、准确性、阳性预测值和阴性预测值分别为100%(26/26)、70.73%(58/82)、77.78%(84/108)、52.00%(26/50)和100%(58/58)。结论首次^131I治疗后淋巴结显影伴治疗前psTg阴性的DTC患者中有部分患者治疗反应未达ER;年龄、治疗前超声、显影淋巴结大小可作为预测其治疗反应的灵敏指标。
