Journal
MEDICAL ONCOLOGY
Volume 27, Issue 3, Pages 798-806Publisher
HUMANA PRESS INC
DOI: 10.1007/s12032-009-9288-7
Keywords
Nasal lymphoma; NK/T-cell lymphoma; Treatment; Prognostic factors
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This study aims to investigate the prognostic factors and long-term treatment outcome in patients with early stage nasal natural killer (NK)/T-cell lymphoma. Sixty-four patients were recruited in this study, whose clinical and laboratory data were collected from hospital records. Early stage (stage IE: 51, stage IIE: 13) nasal NIK/T-cell lymphoma (NNTCL) was established according to Ann Arbor staging classification. Among these patients, 23 received radiotherapy (RT) alone, the remaining 41 cases were treated with radiochemotherapy (RCT) comprised of 1-6 cycles of anthracycline-based chemotherapeutic regimens. Results show that the median overall survival (OS) time was 41 months. The 5-year OS and progression-free survival rates were 59.2 and 52.3%, respectively. The 5-year OS rate for patients who received RT alone was 57.9%, whereas that for patients who received RCT was 61.5% (P = 0.47). There is no significant difference between two treatment modalities. Multivariate analysis showed that Eastern Cooperative Oncology Group performance status (PS) score >= 2, local tumor invasion out of nasal cavity, and lower complete remission (CR) rates in the initial treatment were significant unfavorable independent prognostic factors. Taken together, our study suggests that RCT did not improve the survival rate of patients with early stage NNTCL. PS score before treatment, local tumor invasion out of nasal cavity, and CR rate of the primary treatment may be independent prognostic factors among the subtype lymphoma entity.
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