进展期食管鳞癌新辅助放化疗与新辅助化疗的Meta分析

目的 系统评价新辅助放化疗(NCRT)联合手术与新辅助化疗(NCT)联合手术治疗进展期食管鳞癌的疗效和安全性。方法 利用计算机检索PubMed、The Cochrane Library、EMbase、CBM、CNKI、WanFang、VIP数据库,搜集NCRT与NCT联合手术治疗食管鳞癌的临床对照研究,检索时限均从建库至2019年1月。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用RevMan 5.3软件进行Meta分析。结果 共纳入8项临床对照研究,包括食管鳞癌患者995例。Meta分析结果显示NCRT对比NCT组,经手术治疗后无肿瘤细胞残存(R0)切除率更高(OR=2.14,95%CI为1.03~4.45,P=0.040)、病理完全缓解率(pCR)更高(OR=4.19,95%CI为1.71~10.28,P=0.002);两组术后并发症发生率(OR=1.37,95%CI为0.76~2.48,P=0.300)和围术期死亡风险(OR=1.28,95%CI为0.58~2.83,P=0.540)相近;NCRT组的食管鳞癌患者的远期生存情况更好(HR=0.77,95%CI为0.64~0.92,P=0.005)。结论 NCRT联合手术对比NCT联合手术治疗进展期食管鳞癌能够有更高的R0切除率、pCR率,并不会明显增加围术期并发症发生和围术期死亡风险,且能够更加明显的改善食管鳞癌患者的远期生存。

Meta-analysis of neoadjuvant chemoradiotherapy and neoadjuvant chemotherapy for advanced esophageal squamous cell carcinoma

Objective To systematically evaluate the efficacy and safety of neoadjuvant chemoradiotherapy (NCRT) plus surgery versus neoadjuvant chemotherapy (NCT) plus surgery in the treatment of advanced esophageal squamous cell carcinoma. Methods Clinical controlled trials of comparing the treatment of NCRT plus surgery with NCT plus surgery for esophageal squamous cell carcinoma were electronically searched from the databases including PubMed, The Cochrane Library, EMbase, CBM, CNKI, WanFang and VIP from the inception of databases to January, 2019. Two reviewers independently screened the literatures, extracted data and assessed the risk of bias of the included studies. And then, a meta-analysis was performed by using RevMan 5.3 software. Results A total of 8 clinical control studies were included, including 995 patients with esophageal squamous cell carcinoma. Meta-analysis Results showed that compared with the NCT group, the R0 resection rate was significantly higher(OR=2.14, 95%CI:1.03-4.45, P=0.040)and the pathological complete response (pCR) rate was significantly higher(OR=4.19, 95%CI:1.71-10.28, P=0.002)in the NCRT group. The incidence of postoperative complications (OR=1.37, 95%CI:0.76-2.48, P=0.300) and the risk of perioperative death (OR=1.28, 95%CI:0.58-2.83, P=0.54) were not significantly different between two groups. The long-term survival of patients with esophageal squamous cell carcinoma in the NCRT group was significantly better compared with that in the NCT group (HR=0.77, 95%CI:0.64-0.92, P=0.005). Conclusions Compared with NCT plus surgery for advanced esophageal squamous cell carcinoma, NCRT plus surgery has higher R0 resection rate and pCR rate,does not significantly increase the risk of perioperative complications or perioperative death, and significantly improves the long-term survival of esophageal squamous cell carcinoma patients.