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Title: [Application value of different lymph node staging system in predicting prognosis of patients with intrahepatic cholangiocarcinoma].
Author: Chen C, Wu YH, Li Q, Wu H, Qiu YH, Song TQ, Mao XH, He Y, Cheng Z, Zhai WL, Li JD, Geng ZM, Tang ZH.
Journal: Zhonghua Wai Ke Za Zhi; 2020 Apr 01; 58(4):295-302. PubMed ID: 32241060.
Abstract:
Objective: To examine the value of number of metastatic lymph nodes(NMLN), lymph node ratio(LNR) and log odds of metastatic lymph nodes(LODDS) in assessing the prognosis of patients with intrahepatic cholangiocarcinoma(ICC). Methods: The clinical and pathological data of 440 ICC patients who underwent curative-intent resection in 10 of Chinese hepatobiliary surgery centers from January 2010 to December 2018 were collected, and the deadline of follow-up was April 30th, 2019. Among them, 205 were males and 235 were females, with age of (57.0±9.9) years (range:23-83 years).Eighty-five cases (19.3%) had intrahepatic bile duct stones, and 98 cases (22.3%) had chronic viral hepatitis.The Kaplan-Meier method was used for survival analysis. The univariate and multivariate analysis were implemented respectively using the Log-rank test and Cox proportional hazard model. Results: A total of 440 patients underwent curative-intent resection and lymphadenectomy.R0 resection were achieved in 424 cases (96.4%) and R1 resection were in 16 cases (3.6%). The results of postoperative pathological examination showed that high, moderate and poor differentiation was 4.2%(18/426), 60.6%(258/426) and 35.2%(150/426), respectively.Adenocarcinoma was seen in 90.2%(397/440) and non-adenocarcinoma was seen in 9.8%(43/440), respectively. T stage: 2 cases (0.5%) with Tis, 83 cases(18.9%) with T1a, 97 cases(22.0%) with T1b, 95 cases(21.6%) with T2, 122 cases (27.7%) with T3 and 41 cases(9.3%) with T4.The overall median survival time was 24.0 months, and the 1-,3-, and 5-year survival rate was 74.3%, 37.7% and 18.3%, respectively. Lymphatic metastasis occurred in 175 patients(39.8%), the median total number of TNLE(M(Q(R))) was 6(5), the median number of NMLN was 0(1), the median number of LNR was 0 (0.33) and the median number of LODDS was -0.70(-0.92). Rerults of univariate analysis showed that combined stones, pathological differentiation, vascular invasion, LODDS, margin and T staging affected the prognosis (all P<0.05). Rerults of multivariate analysis showed that pathological differentiation, LODDS, margin, and T staging were independent risk factors affecting the prognosis of ICC patients (all P<0.05). Conclusion: LODDS could be used as an optimal prognostic lymph node staging index for ICC, and it is also an independent risk factor for survival after curative intent resection. 目的： 探讨阳性淋巴结数目（NMLN）、阳性淋巴结比例（LNR）、阳性淋巴结对数比（LODDS）在评估肝内胆管癌（ICC）患者预后中的价值。 方法： 收集2010年1月至2018年12月中国10家三甲医院肝胆外科中心行意向性根治性手术治疗的440例ICC患者的临床病理学资料。其中男性205例，女性235例；年龄（57.0±9.9）岁（范围：23~83岁）。85例（19.3%）合并肝内胆管结石，98例（22.3%）合并慢性病毒性肝炎。随访截至2019年4月30日。采用Kaplan-Meier法计算累积总体生存率，生存分析中单因素分析采用Log-rank检验，多因素分析使用Cox检验。 结果： 440例患者均接受意向性根治性切除治疗，其中R0切除424例（96.4%），R1切除16例（3.6%）。所有患者均接受淋巴结清扫。术后病理学检查结果显示，高分化比例为4.2%（18/426），中分化比例为60.6%（258/426），低分化比例为35.2%（150/426）；腺癌比例为90.2%（397/440），非腺癌比例为9.8%（43/440）；Tis期2例（0.5%），T1a期83例（18.9%），T1b期97例（22.0%），T2期95例（21.6%），T3期122例（27.7%），T4期41例（9.3%）。所有患者的总体中位生存时间为24.0个月，1、3、5年累积总体生存率分别为74.3%、37.7%、18.3%。175例（39.8%）患者出现淋巴转移，清扫淋巴结[M（Q(R)）]6（5）枚，NMLN为0（1）枚，LNR为0（0.33），LODDS为-0.70（-0.92）。单因素分析结果显示，有无结石、分化程度、有无血管侵犯、LODDS、切缘、T分期是影响患者的预后因素（P值均<0.05）。进一步的Cox多因素回归模型分析结果显示，分化程度、切缘、T分期、LODDS为患者的独立预后因素（P值均<0.05）。 结论： LODDS可作为ICC患者淋巴结转移的分期指标，同时也是患者的独立预后因素。.

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