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JGH:肝细胞癌——手术切除与TACE孰优?

2014-01-14 MedSci MedSci原创

韩国成钧馆大学医学院的Moon Seok Choi医生和他的同事们对手术切除肝巨大肿瘤和肝动脉化疗栓塞的远期疗效进行了对比,并对与生存期有关的预后因素进行了评估。自2000年至2009年,有84位患者进行了手术切除,267位患者行肝动脉化疗栓塞。研究者们收集了患者的年龄、性别、肝病病因、是否存在肝硬化和肝功能分级,以及肿瘤大小、数目、范围和血管侵蚀情况的数据信息。主要评价项目是总生存期。其他评

韩国成钧馆大学医学院的Moon Seok Choi医生和他的同事们对手术切除肝巨大肿瘤和肝动脉化疗栓塞的远期疗效进行了对比,并对与生存期有关的预后因素进行了评估。

自2000年至2009年,有84位患者进行了手术切除,267位患者行肝动脉化疗栓塞。研究者们收集了患者的年龄、性别、肝病病因、是否存在肝硬化和肝功能分级,以及肿瘤大小、数目、范围和血管侵蚀情况的数据信息。

主要评价项目是总生存期。其他评价项目还包括总生存期的预后因素。该评价项目主要是通过分数匹配的队列的单变量和多变量分析得出的。该队列有76个年龄、性别、肝病病因、肝功能分级、肿瘤数量、血管侵蚀情况、肿瘤范围与试验组匹配的患者组成。

进行外科手术的患者在前两年内每3个月复查一次,之后每6个月复查一次。复查时进行肝功能测试、血清甲胎蛋白水平测试和肝动态CT来监测肿瘤有无复发。

那些进行肝动脉化疗栓塞的患者在第一个月时进行两次连续的监测,然后每个治疗周期之后的1个月在门诊复查。复查时他们进行类似电池的试验来判断肿瘤分期。如果肝动态CT发现肿瘤后,需要再次进行肝动脉化疗栓塞。



Figure 1. Kaplan-Meier survival curves showing overall survival rates in 351 patients with huge hepatocellular carcinoma after surgery (n=84) and TACE (n=267). Surgery group showed higher 1-, 3-, and 5-year survival rates than TACE group (73.8%, 54.8%, and 39.8% vs. 37.8%, 16.3%, and 9.7%, respectively; P<0.001). 

巨大肝细胞癌手术切除后患者的1年总生存率为69.7%,2年总生存率为58.6%,3年总生存率为51.7%。而肝动脉化疗栓塞后患者的1年总生存率为40.2%,2年总生存率为33.9%,3年总生存率为18.5%。


Figure 2. Kaplan-Meier survival curves showing overall survival rates in propensity score matched-cohort (76 matched pairs) with huge hepatocellular carcinoma after surgery and TACE. Surgery group showed higher 1-, 2-, and 3-year survival rates than TACE group (69.7%, 58.6%, and 51.7% vs. 40.2%, 33.9%, and 18.5%, respectively; P<0.001). 

经多变量分析发现,与生存期有关的因素包括:白蛋白(风险比为0.54, 95% CI 0.34-0.85, P=0.008)和外科手术(风险比为 0.44, 95% CI 0.28-0.70, P=0.001)。

对生存期不利的因素包括:男性(风险比为 1.90, 95% CI 1.01-3.58, P=0.048)和腹水(风险比为 1.77, 95% CI 1.02-3.08, P=0.044)。

   

Figure 3. Kaplan-Meier survival curves showing overall survival rates cirrhosis after surgery and TACE in propensity score matched-cohort (76 matched pairs) according to the presence of cirrhosis: a) in non-cirrhotic patients and b) in cirrhotic patients. 

两组患者的住院死亡率没有明显区别(P=0.14)。进行外科手术的患者中有2人在住院期间死于肝衰竭,而肝动脉化疗栓塞的患者中仅1人死于碘油诱发的急性肺损伤。

肿瘤直径大于等于10cm的患者较肿瘤较小的患者的生存期短。

作者们警示,尽管外科手术后1年、3年、5年患者的生存率较高,但是非手术治疗组患者肝硬化、门静脉或肝静脉侵蚀的发生率较低。患者选择治疗方式的不同可能对结果有一定影响,这使这一研究的价值受到一定的限制。 他们也注意到,这一研究是一个回顾性研究,患者的数量较少,且研究只关注了血管侵蚀的情况,而没有对比血管侵蚀的范围,这些都限制了这一研究的价值。

MedSci评论:这个研究最大特色在于采用了倾向匹配得分方法,纠正了两种的基线差异。否则如果不纠正这种差异,会带来大量的偏倚。因为能手术的患者,肿瘤侵袭范围,肿瘤结节的数量,以及肿瘤的位置可能都较好。而TACE的患者可能状况更差,因此,很难进行比较。采用倾向匹配得分,修正这些差异,结论会更令人信服。

原始出处:

Yang Won Min, et al. Long-term survival after surgical resection for huge HCC: comparison with TACE after propensity score matching.Journal of Gastroenterology and Hepatology 10.1111/jgh.12504

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    2014-10-23 grace5700
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    2014-08-19 xjy02
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    2014-08-16 shanyongle
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    2014-01-14 8.35.201.33

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