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학술저널
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김형돈 (서울아산병원) 조형우 (서울아산병원 종양내과) 김신 (서울아산병원) 이경민 (서울아산병원) 강은희 (서울아산병원) 박정선 (서울아산병원) 박찬식 (울산대학교) 허주령 (울산대학교) 류진숙 (울산대학교) 이상욱 (서울아산병원) 윤덕현 (울산대학교) 김석진 (삼성서울병원) 고영혜 (삼성서울병원) 김원석 (성균관대학교) 서철원 (울산대학교)
저널정보
대한암학회 Cancer Research and Treatment Cancer Research and Treatment 제53권 제3호
발행연도
2021.1
수록면
847 - 856 (10page)

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Purpose We aimed to investigate the prognostic value of serum β2-microglobulin for patients with Burkitt lymphoma (BL) and to propose a risk-stratifying classification system.Materials and Methods A prospective registry-based cohort study of BL patients treated with dose-intensive or effective dose-adjusted chemotherapies (n=81) was conducted. Survival outcomes were compared based on previously reported risk groups and/or serum β2-microglobulin levels. A risk-stratifying classification system incorporating serum β2-microglobulin levels was proposed and validated in an independent validation cohort (n=60).Results The median age was 47 years, and 57 patients (70.4%) were male. Patients with high serum β2-microglobulin levels (> 2 mg/L) had significantly worse progression-free survival (PFS) and overall survival (OS) (p < 0.01 for both). Serum β2-microglobulin levels further stratified patients in the low-risk and high-risk groups in terms of PFS (p=0.010 and p=0.044, respectively) and OS (p=0.014 and p=0.026, respectively). Multivariate analyses revealed that a high serum β2-microglobulin level (> 2 mg/L) was independently associated with a shorter PFS (hazards ratio [HR], 3.56; p=0.047) and OS (HR, 4.66; p=0.043). The new classification system incorporating the serum β2-microglobulin level allowed the stratification of patients into three distinct risk subgroups with 5-year OS rates of 100%, 89.5%, and 62.5%. In an independent cohort of BL, the system was validated by stratifying patients with different survival outcomes.Conclusion Serum β2-microglobulin level is an independent prognostic factor for BL patients. The proposed β2-microglobulin?based classification system could stratify patients with distinct survival outcomes, which may help define appropriate treatment approaches for individual patients.

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