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Analysis of treatment results of concurrent and asynchronous radiochemotherapy for early extranodal NK/T cell lymphoma
Liu Qiulin1,2, Wu Tao1,2, Zhang Jing1,2, Hu Yunfei1,2, Chen Mengxiang1,2, Huang Yunhong1,2
1Department of Oncology,Affiliated Hospital of Guizhou Medical University,Guiyang 550001, China; 2Department of Lymphoma, Affiliated Cancer Hospital of Guizhou Medical University,Guiyang 550001, China
AbstractObjective To compare the efficacy of concurrent and asynchronous radiochemotheray for early extranodal nasal natural killer/T-cell lymphoma (NKTCL). Methods From 2007 to 2020, 278 patients with early NKTCL treated with comprehensive treatment in the Affiliated Tumor Hospital of Guizhou Medical University were recruited. According to the adjusted Nomogram-revised risk index (NRI) prognostic model, there were 49 cases in the good prognostic group without adverse prognostic factors (age>60 years old,increased serum lactate dehydrogenase (LDH), ECOG score ≥2, primary tumor invasion (PTI), Ann Arbor stage Ⅱ,and 229 cases in the poor prognostic group with any adverse prognostic factors. 145 of these cases were treated with concurrent radiochemotherapy, and 133 of them were treated with asynchronous radiochemotherapy. Results The 5-year overall survival (OS) rate of the whole group was 71.0%, and the progression-free survival (PFS) rate was 67.6%. The 5-year OS rate in the good prognostic group was 95.6%, and 65.4% in the poor prognostic group (P<0.001). In the poor prognostic group, the 5-year OS rates of patients with NRI=1(low-and moderate-risk group), NRI=2(moderate-and high-risk group), NRI≥3(high-risk group) were 72.1%, 61.1% and 47.7%, respectively (P=0.007). There was no significant difference in curative effect between the concurrent and asynchronous radiochemotherapy groups. The 5-year OS rates were 70.6% and 69.8%(P=0.783), and the 5-year PFS rates were 67.6% and 65.2%(P=0.631). Further stratified analysis showed that the 5-year OS rates of patients with NRI=1 receiving concurrent and asynchronous radiochemotherapy were 73.1% and 76.5%(P=0.576),62.6% and 69.3%(P=0.427) for those with NRI=2, and 58.1% and 42.3% for those with NRI≥3(P=0.954). Conclusions Comprehensive treatment can significantly improve the prognosis of early NKTCL in the poor prognostic group. In the sequence of radiotherapy and chemotherapy, there is no significant difference in 5-year OS and PFS rates between concurrent and asynchronous radiochemotherapy. Sequential treatment with better tolerance can be adopted for early NKTCL with poor prognosis.
Liu Qiulin,Wu Tao,Zhang Jing et al. Analysis of treatment results of concurrent and asynchronous radiochemotherapy for early extranodal NK/T cell lymphoma[J]. Chinese Journal of Radiation Oncology, 2022, 31(6): 532-538.
Liu Qiulin,Wu Tao,Zhang Jing et al. Analysis of treatment results of concurrent and asynchronous radiochemotherapy for early extranodal NK/T cell lymphoma[J]. Chinese Journal of Radiation Oncology, 2022, 31(6): 532-538.
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2022, Vol. 31 
