Objective: The clinical features and prognosis of diffuse large B-cell lymphoma (DLBCL) were analyzed to optimize the treatment. Methods: We retrospectively collected the clinical data of patients with advanced-stage DLBCL from January 2006 to December 2012 in National Cancer Center/Cancer Hospital. The demographic characteristics, clinical stage, histological diagnosis, treatment and prognostic characteristics of these patients were analyzed. Results: A total of 370 patients with median age of 55 years old were recruited in the study. The male-to-female ratio was 1.3∶1. Among the 361 patients who underwent therapy, 280 cases received chemotherapy alone, 65 cases received chemoradiotherapy, and 16 cases received chemotherapy combined with autologous hematopoietic stem cell transplantation (AHSCT). The median follow-up period was 89 months, the 5-year overall survival (OS) rate of the entire cohort was 42.9%. The 5-year OS rate of chemotherapy alone, chemoradiotherapy and chemotherapy combined with AHSCT were 36.8%, 58.5%, 87.5%, respectively. The 5-year OS rate were significantly different between chemoradiotherapy and chemotherapy alone (P=0.001), and between chemotherapy combined with AHSCT and chemoradiotherapy (P=0.040). Univariate analysis showed that the age, Eastern Cooperative Oncology Group performance status (ECOG PS) score, Ann Arbor stage, B symptom, bulky disease, number of extranodal sites, Ki-67 index, lactate dehydrogenase (LDH), β2-microglobulin (β2-MG), international prognostic index (IPI), therapeutic manner and chemotherapy combined with rituximab were significantly associated with the prognosis of advanced DLBCL patients (all P<0.05). Multivariate analysis demonstrated that the age >60 years, Ann Arbor stage IV, with B symptom, with bulky disease, ECOG PS≥1, Ki-67 index > 90%, CD5 expression, up-regulation of serum LDH and β2-MG, and chemotherapy without rituximab were related with the poor prognosis of patients with advanced-stage DLBCL (all P<0.05). Conclusions: Chemotherapy combined with rituximab can improve the outcome of patients with advanced-stage DLBCL. The age, stage, B symptom, bulky disease, ECOG PS score, Ki-67 index, CD5 expression, LDH, β2-MG and chemotherapy combined with rituximab are associated with the prognosis of these patients.
目的： 分析晚期弥漫大B细胞淋巴瘤(DLBCL)的临床特点和相关预后因素。 方法： 收集2006年1月至2012年12月中国医学科学院肿瘤医院收治的370例初治晚期DLBCL患者的相关临床资料，分析其人口学特点、分期、病理学特点、治疗和预后等特征。 结果： 370例DLBCL患者的中位年龄为55岁，男女比例为1.3∶1。在接受治疗的361例患者中，单纯化疗280例，化疗联合放疗65例，化疗联合自体造血干细胞移植(AHSCT)治疗16例。中位随访89个月，全组患者的5年生存率为42.9%。单纯化疗组、化疗联合放疗组和化疗联合AHSCT组患者的5年生存率分别为36.8%、58.5%和87.5%，化疗联合放疗组与化疗组比较，差异有统计学意义(P＝0.001)；化疗联合AHSCT组与化疗联合放疗组比较，差异有统计学意义(P＝0.040)。单因素分析结果显示，患者年龄、美国东部肿瘤协作组活动状态评分(ECOG PS)、Ann Arbor分期、有无B症状、有无大肿块、有无结外受侵、Ki－67指数、血清乳酸脱氢酶(LDH)水平、血清β2－微球蛋白(β2－MG)水平、国际预后指数(IPI)评分、治疗方式以及是否使用利妥昔单抗与晚期DLBCL患者的预后有关(均P<0.05)。多因素分析结果显示，年龄>60岁、ECOG PS评分≥1分、Ann Arbor分期为Ⅳ期、伴有B症状、伴有大肿块、Ki－67指数>90%、CD5阳性、血清LDH水平升高、血清β2－MG升高以及一线治疗未使用利妥昔单抗为影响晚期DLBCL患者预后的危险因素(均P<0.05)。 结论： 晚期DLBCL采用化疗联合利妥昔单抗治疗可提高疗效，改善预后。年龄、分期、B症状、大肿块、ECOG PS评分、Ki－67指数、CD5表达、LDH水平、β2－MG水平及使用利妥昔单抗治疗为晚期DLBCL预后的影响因素。.
Keywords: Advanced-stage; Clinical features; Diffuse large B-cell lymphoma; Prognostic factors.