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131I 治疗分化型甲状腺癌疗效分析

2014-07-05黄晓红智生芳毕伟

中国现代医生 2014年17期

黄晓红+智生芳+毕伟

[摘要] 目的 探讨131I清甲治疗分化型甲状腺癌(DTC)的临床疗效。方法 133例分化型甲状腺癌患者分别给服131I治疗,治疗后第2天给予甲状腺激素替代治疗,1年后评价疗效。结果 133例DTC患者一次清甲成功率为57.14%,3次累计清甲成功率为90.23%;Ⅰ度残余灶、131I清甲剂量>3.7GBq和血清TSH水平≥30μIU/mL的DTC患者131I一次清甲成功率明显高于同组其他分型患者(P<0.05或P<0.01)。 结论 131I治疗剂量、甲状腺残余灶大小是影响清甲效果的主要因素,血清TSH水平≥30 μIU/mL时可有效提高清甲治疗成功率。

[关键词] 放射性碘;分化型甲状腺癌;清甲治疗

[中图分类号] R736.1 [文献标识码] A [文章编号] 1673-9701(2014)17-0012-03

Analysis on the efficacy of 131I for treatment of differentiated thyroid carcinoma

HUANG Xiaohong ZHI Shengfang BI Wei

Department of Nuclear Medicine, Dongguan Peoples Hospital in Guangdong Province, Dongguan 523059, China

[Abstract] Objective To explore the clinical efficacy of 131I thyroid remnant ablation for treatment of differentiated thyroid carcinoma (DTC). Methods A total of 133 cases of DTC patients were given 131I treatment. Replacement treatment with thyroid hormone was given on the second day after treatment. The efficacy was evaluated after 1 year. Results Among the 133 cases of DTC patients, the success rate of thyroid remnant ablation within one dose was 57.14% and the total success rate of thyroid remnant ablation within three doses was 90.23%. DTC patients with first-degree thyroid residue, 131I thyroid remnant ablation dose>3.7GBq and serum TSH level≥30μIU/mL had higher success rate of thyroid remnant ablation within 1 dose than other patients in the same group (P<0.05 or P< 0.01). Conclusion 131I treatment dose and the size of thyroid residue are main factors affecting the effect of thyroid remnant ablation. Serum TSH level≥30 μIU/mL can improve the success rate of thyroid remnant ablation.

[Key words] Radioactive iodine; Differentiated thyroid carcinoma; Thyroid remnant ablation

甲状腺癌(thyroid carcinoma)是内分泌系统中最常见的恶性肿瘤疾病,国内普查发病率为11.44/10万,男女发生比为1∶2.43[1]。按病理形态学分类,甲状腺癌大致可分为乳头状腺癌、滤泡状腺癌、髓样癌和未分化癌,前三类统称为分化型甲状腺癌(differentiated thyroid carcinoma,DTC),约占甲状腺癌发病例数的80%以上,尽管其恶性程度不高,但易发生广泛性转移。目前,DTC治疗的基本原则是外科手术全切或次全切甲状腺癌原发灶及局部转移灶[2],以放射性131I破坏残余甲状腺组织及转移灶(131I清甲治疗)。为进一步观察和评估131I治疗DTC转移的临床疗效,本研究对133 例DTC患者131I的治疗情况进行了随访观察,旨在为DTC的临床治疗提供可靠的参考依据。现报道如下。

1对象与方法

1.1研究对象

选择2009年6月~2012年6月我院核医学科收治的133例DTC术后患者,其中男48例,女85例,年龄21~71岁,平均(37.2±6.0)岁,病程7个月~8年。全部病例均接受甲状腺全切或次全切手术加颈部淋巴结清扫,符合中华医学会内分泌学分会确定的131I清甲治疗的适应证[3]:①原发DTC病灶直径≥2cm;②原发DTC病灶直径<2cm,但X线平片或131I全身显像提示甲状腺外、血管浸润或为多灶性DTC患者;③……

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