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南京医科大学附属肿瘤医院,江苏省肿瘤医院,江苏省肿瘤防治研究所头颈外科,江苏 南京 210000
[ "袁欣越(ORCID:0000-0002-6920-674X),硕士研究生在读。" ]
张 园(ORCID:0000-0002-5776-6205),主任医师,副教授,江苏省肿瘤医院头颈外科主任。
收稿:2022-12-13,
修回:2023-05-16,
纸质出版:2023-06-30
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袁欣越, 姚瑶, 程帅, 等. 单侧甲状腺乳头状癌对侧淋巴结转移高危因素的临床研究[J]. 中国癌症杂志, 2023,33(6):619-628.
Xinyue YUAN, Yao YAO, Shuai CHENG, et al. Clinical study on high-risk factors for contralateral lymph node metastasis in unilateral papillary thyroid carcinoma[J]. China Oncology, 2023, 33(6): 619-628.
袁欣越, 姚瑶, 程帅, 等. 单侧甲状腺乳头状癌对侧淋巴结转移高危因素的临床研究[J]. 中国癌症杂志, 2023,33(6):619-628. DOI: 10.19401/j.cnki.1007-3639.2023.06.010.
Xinyue YUAN, Yao YAO, Shuai CHENG, et al. Clinical study on high-risk factors for contralateral lymph node metastasis in unilateral papillary thyroid carcinoma[J]. China Oncology, 2023, 33(6): 619-628. DOI: 10.19401/j.cnki.1007-3639.2023.06.010.
背景与目的:
甲状腺乳头状癌(papillary thyroid carcinoma,PTC)发生淋巴结转移时会对患者预后产生不良影响,本研究旨在讨论单侧PTC发生对侧中央区淋巴结转移(central lymph node metastases,CLNM)及影像学怀疑同侧颈侧区淋巴结转移(later
al lymph node metastases,LLNM)时发生对侧LLNM的相关高危因素。
方法:
回顾性分析2011年1月—2021年12月于江苏省肿瘤医院头颈外科同一治疗组行手术治疗的526例初治的行甲状腺全切及双侧中央区±颈侧区淋巴结清扫,术后病理学检查确诊为单侧PTC的患者的临床资料,分析发生对侧淋巴结转移的相关高危因素。
结果:
526例患者中,295例为CLNM,其中272例存在同侧CLNM(含同侧和双侧),129例存在对侧CLNM(含对侧和双侧);165例存在LLNM,其中同侧129例,对侧和双侧转移均为18例。行预防性中央区淋巴结清扫(central lymph node dissection,CLND)的365例中65例(17.8%)出现对侧CLNM;治疗性CLND的161例中68例(42.2%)出现对侧CLNM。单因素及多因素回归分析结果显示,年龄
<
55岁、肿瘤最大径≥2 cm、CLNM数量≥6枚、多灶、无桥本甲状腺炎及肿瘤外侵与对侧CLNM有关(
P
均
<
0.05);肿瘤最大径≥2 cm与对侧LLNM有关(
P
<
0.05),而淋巴结外侵及癌灶侧淋巴结转移是发生对侧CLNM与对侧LLNM的独立危险因素(
P
均
<
0.05)。随访显示5年总生存(overall survival,OS)率为97.9%,无病生存(disease-free survival,DFS)率为97.5%。
结论:
单侧PTC患者存在多灶、无桥本甲状腺炎、肿瘤及淋巴结外侵、癌灶侧CLNM、年龄
<
55岁、肿瘤最大径≥2 cm、CLNM数量≥6枚等高危因素时更易出现对侧CLNM,临床上对出现上述高危因素的患者,应考虑行双侧CLND以降低肿瘤的残留复发。
Background and purpose:
The occurrence of lymph node metastasis in papillary thyroid cancer (PTC) can have adverse effects on the prognosis of patients. This study aimed to investigate risk factors related to the occurrence of contralateral central lymph node metastases (CLNM) and contralateral lateral lymph node metastases (LLNM) when imaging suspected ipsilateral LLNM in unilateral PTC.
Methods:
We retrospectively analyzed the clinical data of 526 patients who received surgical treatment in the same treatment group of Jiangsu Cancer Hospital Head and Neck Surgery Department from January 2011 to December 2021. They were initially treated with total thyroidectomy and bilateral central lymph node dissection (CLND) ± lateral lymph node dissection
and their postoperative pathology was uni-PTC. This study analyzed the relevant high-risk factors of contralateral lymph node metastasis.
Results:
Among the 526 patients
295 had CLNM
including 272 ipsilateral CLNM
129 contralateral CLNM and 106 of both sides CLNM; 165 patients had LLNM including 129 ipsilateral LLNM
18 contralateral
LLNM
and 18 of both ipsilateral and contralateral LLNM. Contralateral CLNM occurred in 65 (17.8%) of 365 patients who underwent preventive CLND
and contralateral CLNM was found in 68 (42.2%) of 161 patients with therapeutic CLND. Univariate and multivariate regression analyses showed that contralateral CLNM was associated with maximum diameter of tumor ≥2 cm
multiple foci
no Hashimoto's thyroiditis
tumor invasion
number of CLNM≥6 and age
<
55 years (
P
<
0.05). Maximum diameter of tumor ≥2 cm was related to contralateral LLNM (
P
<
0.05)
while lymph extracapsular extension and lymph node metastasis at tumor side were independent risk factors for contralateral CLNM and contralateral LLNM (
P
<
0.05). Follow-up showed that 5-year overall survival (OS) rate was 97.9% and 5-year disease-free survival (DFS) rate was 97.5%.
Conclusion:
Contralateral CLNM is more likely to occur in patients with maximum diameter of tumor ≥2 cm
multiple foci
no Hashimoto's thyroiditis
number of CLNM ≥6
age
<
55 years
tumor and lymph extracapsular extension and lymph node metastasis at the cancer side. In clinical practice
bilateral CLND should be considered for patients with high-risk factors to reduce the residual recurrence of the tumor. Since metastatic rate of contralateral LLNM is relatively low
preventive contralateral lateral lymph node dissection should not be performed routinely when there are no high-risk factors mentioned above.
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