1257例食管鳞癌三维放疗+化疗的临床研究

目的 比较食管癌3DRT+化疗与单纯放疗的疗效。方法 回顾分析2003—2012年本院收治符合入组条件的食管鳞癌患者1257例,3DRT+化疗(放化疗组)362例,单纯放疗(单放组)895例。观察全组患者近期疗效、OS率及死亡原因。Kaplan-Meier法计算OS率并Logrank法检验和单因素预后分析。结果 放化疗组与单放组的有效率分别99.1%(346/349)与99.0%(813/821)(P=0.397)。1、3、5年OS率放化疗组与单放组分别为74.0%、42.0%、32.9%与65.9%、33.0%、23.3%(P=0.000),同期放化组与单放组分别为75.6%、43.5%、33.2%与65.9%、33.0%、23.3%(P=0.000)。同期放化组与序贯放化组相近(P=0.583),序贯放化疗组较单放组有提高OS率趋势(P=0.065)。两组主要死因均为肿瘤复发和未控,其次为远处转移。放化疗组死于未控比例低于单放组(7.4%∶14.7%,P=0.003)。结论 放化疗组OS明显优于单放组;序贯放化疗组较单放组有提高OS率趋势,同期放化组较单放组OS率明显提高;放化疗组死于未控比例要低于单放组。

Clinical effect of three-dimensional radiotherapy combined with chemotherapy for esophageal squamous cell carcinoma:a study of 1257 patients

Objective To compare the efficacy between three-dimensional radiotherapy (3DRT) combined with chemotherapy and radiotherapy alone for patients with esophageal squamous cell carcinoma.Methods A retrospective analysis was performed for 1257 patients with esophageal squamous cell carcinoma who were admitted to our hospital from July 2003 to June 2012 and met the inclusion criteria;362 patients were treated with 3DRT combined with chemotherapy (chemoradiotherapy group) and 895 patients were treated with radiotherapy alone (radiotherapy group).The short-term outcome, overall survival (OS) rate, and causes of death were analyzed.The Kaplan-Meier method was used to calculate survival rates, and the log-rank test was used for survival difference analysis and univariate prognostic analysis.Results The response rate was 99.1%(346/349) in the chemoradiotherapy group and 99.0%(813/821) in the radiotherapy group (P=0.397).The 1-, 3-, and 5-year OS rates were 74.0%,42.0%,and 32.9% in the chemoradiotherapy group and 65.9%,33.0%,and 23.3% in the radiotherapy group (P=0.000), and were 75.6%,43.5%,and 33.2% in the concurrent chemoradiotherapy group and 65.9%,33.0%,and 23.3% in the radiotherapy group (P=0.000).There were no significant differences in 1-, 3-, and 5-year OS rates between the concurrent chemoradiotherapy group and the sequential chemoradiotherapy group (P=0.583).The sequential chemoradiotherapy group had an insignificant increase in 1-, 3-, and 5-year OS rates compared with the radiotherapy group (P=0.065).Tumor recurrence and local control failure were the main causes of death, followed by distant metastasis.The chemoradiotherapy group had a significantly lower proportion of patients who died of local control failure than the radiotherapy group (7.4% vs.14.7%, P=0.003).Conclusions For patients with esophageal squamous cell carcinoma, chemoradiotherapy leads to significantly improved overall survival compared with radiotherapy alone;compared with radiotherapy alone, sequential chemoradiotherapy results in an increasing trend in OS rates, while concurrent chemoradiotherapy results in significantly increased OS rates.Chemoradiotherapy can reduce the deaths due to local control failure compared with radiotherapy alone.