骨髓侵犯和不同治疗方案对弥漫大B细胞淋巴瘤患者预后的影响

目的 探讨骨髓侵犯和不同治疗方案对弥漫大B细胞淋巴瘤(DLBCL)患者预后的影响.方法 回顾性分析83例有、无骨髓侵犯DLBCL患者的不同I临床特点及预后影响因素,比较不同治疗方案对DLBCL的疗效.结果 有骨髓侵犯者LDH升高、ECOG评分≥2分、IPI和aaIPI评分为中/高危、B症状、肝脾肿大、血红蛋白减少、血小板减少、白蛋白降低较无骨髓侵犯者多见,多因素分析显示骨髓侵犯为独立不良预后闪素.全组患者3年总生存(0S)和无进展生存(PFS)率在利妥昔单抗联合化疗组(单抗组)分别为78.1%和64.3%,增强化疔组为33.3%和25.7%,CHOP组为23.6%和21.8%,单抗组显著高于增强化疗组(P值均为0.002)和CHOP组(P值均为0.000),增强化疗组和CHOP组间差异无统计学意义(P=0.411和P=0.694).有骨髓侵犯者中单抗组、增强化疗组和CHOP组的3年OS率分别为57.1%、29.5%和13.9%,3年PFS率分别为57.1%、16.8%和14.1%.单抗组均显著高于增强化疗组(P=0.029和P=0.012)和CHOP组(P值均为0.001),增强化疗组和CHOP组间亦差异无统计学意义(P=0.226和P=0.376).单抗组中无骨髓侵犯者3年0S率和PFS率分别为86.7%和67.3%,与有骨髓侵犯者的57.1%和57.1%比较差异无统计学意义(P=0.645和P=0.965).结论 骨髓侵犯是DLBCL的独立预后影响因素.利妥昔单抗联合化疗可显著提高DLBCL的疗效,并改善骨髓侵犯对DLBCL预后的不良影响.

Prognostic impact of bone marrow involvement(BMI) and therapies in diffuse large B cell lymphoma

Objective To explore the prognostic impact of bone marrow involvement(BMI) and ther- apy in diffuse large B cell lymphoma(DLBCL). Methods The clinical characteristics and prognosis of 83 DLBCL patients with or without BMI were retrospectively analyzed. The treatment outcome of standard CHOP regimen (CHOP group), intensive-dose regimen (intensive-dose group) and rituximab combined therapy (rituximab group) were compared. Results The adverse prognostic factors including LDH elevation, ECOG score≥2, higher IPI and aaIPI score, B symptom, hepatomegaly, splenomegaly, hemoglobin < 110 g/L, platelet < 100 ×109/L and serum albumin <35 g/L were more prevalent in DLBCL patients with BMI than in those without BMI. Multivariate analysis showed that BMI was an independent prognostic factor of DLBCL. The 3-year OS and PFS rates in rituximab group were 78.1% and 64.3%, respectively, being statistically higher than that in CHOP group (23.6% and 21.8% respectively, P =0.000 for both) and in intensive-dose group (33.3% and 25.7% respectively, P = 0.002 and 0. 001, respectively). But no difference between the latter two groups (P = 0.411 and 0.694, respectively). For the patients with BMI, the 3-years OS and PFS in fituximab group (57. 1% and 57.1%} were statistically higher than that in CHOP group (13.9% and 14.1%} and intensive-dose group (29.5% and 16.8%} (P = 0.029 and 0.012 respectively), respectively and also no difference in the latter two groups(P =0.226 and 0. 376 respectively). In the rituximab group, the 3-years OS and PFS were 86.7% and 67.3% respectively in patients without BMI, being higher than that in patients with BMI (57.1% and 57.1%}, but the difference was not statistically significant (P = 0. 645 and 0.965 respectively). Conclusion BMI is a negative independent prognostic factors of DLBCL patients. The rituximab combined chemotherapy can significantly improve the therapeutic effect of the DLBCL, and relieve the negative impact of BMI.