老年人肝细胞癌切除术后复发与微血管密度的关系

目的 探讨患者年龄对肝细胞癌(HCC)切除术后无瘤存活率的影响以及老年人HCC复发与微血管密度(MVD)的关系. 方法 回顾性分析71例老年人HCC肝切除术病例,以同期352例非老年HCC病例作对照,结合随访资料分析年龄对无瘤存活率的影响.采用免疫组织化学SABC法检测30例老年人和30例非老年人HCC组织中CD34和endocan的表达情况,研究微血管密度与老年人HCC预后的关系. 结果老年组1、3、5年无瘤存活率分别为75.7%、43.0%、43.0%,非老年组分别为53.6%、38.5%、33.4%,老年组的无瘤存活率大于非老年组,差异有统计学意义(Log Rank值为10.25,P＜0.05).老年组术前血清甲胎蛋白(AFP)阳性率为47.9%,低于非老年组(62.2%),差异具有统计学意义(X2=23.68,P＜0.05).高CD34-MVD组和高endocan-MVD组的中位生存时间分别为260 d和360 d,低CD34-MVD组和低endocan-MVD组的中位生存时间分别为850 d和800 d,差异均有统计学意义(Log Rank值分别为22.18和20.56,P＜0.05). 结论 老年人HCC肝切除术后的长期预后好于非老年组,老年人HCC术后复发转移与血管生成密切相关.

Relationship between microvessel density and recurrence of hepatocellular carcinoma after hepatic resection in the elderly

Objective To study the effect of age on the recurrence-free survival rate after hepatic resection for hepatocellular carcinoma(HCC)and the relationship between microvessel density (MVD)and recurrence of HCC in the elderly. Methods　Severty one cases of elderly patients with HCC were analyzed retrospectively with 352 cases of non-elderly HCC patients as control,and the effect of age on the recurrence-free survival rate was studied.The expressions of CD34 and endocan in HCC tissues were detected by immunohistochemistry in 30 elderly and 30 non-elderly patients.Results　The 1-,3- and 5-year recurrence free survival rates were 75.7%,43.0% and 43.0% in the elderly group respectively,which were higher than those in the non-elderly group(53.6%,38.5% and 33.4%,respectively,Log Rank value=10.25,P＜0.05).The positive rate of alpha fetoprotein (AFP)in the elderly group was 47.9%,which was lower than that in the non-elderly group(62.2%)(X2=23.68,P＜0.05).The median survival times in the high CD34-MVD group and high endocan MVD group were shorter than those in the low CD34-MVD group and low endocan-MVD group(260 d vs.850 d,360 d vs.800 d,Log Rank value was 22.18 and 20.56 respectively,both P＜0.05).Conclusions　The long-term prognosis of hepatic resection for HCC is better in elderly patients than in non-elderly patients.The recurrence of HCC in the elderly is closely related with angiogenesis.