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Prognostic Factors, Survival Analyses and the Risk of Second Primary Cancer: A Population-Based Study on Burkitt Lymphoma/Leukemia.

ABSTRACT: Burkitt lymphoma/leukemia (BL/L) is an aggressive oncohematological disease. This study evaluated the population-based prognosis and survival on BL/L as well as if BL/L behaved as a risk factor for the development of second primary cancers (SPCs) and if other first tumors behaved as risk factors for the occurrence of BL/L as an SPC. A retrospective cohort using the Surveillance, Epidemiology and End Results (SEER) Program (2008-2016) was performed. Kaplan-Meier, time-dependent covariate Cox regression and Poisson regression models were conducted. Overall, 3094 patients were included (median, 45 years; IQR, 22-62). The estimated overall survival was 65.4 months (95% CI, 63.6-67.3). Significantly more deaths occurred for older patients, black race, disease at an advanced stage, patients without chemotherapy/surgery and patients who underwent radiotherapy. Hodgkin lymphomas (nodal) (RR, 7.6 (3.9-15.0; p < 0.001)), Kaposi sarcomas (34.0 (16.8-68.9; p < 0.001)), liver tumors (3.4 (1.2-9.3; p = 0.020)) and trachea, mediastinum and other respiratory cancers (15.8 (2.2-113.9; p = 0.006)) behaved as risk factors for the occurrence of BL/L as an SPC. BL/L was a risk factor for the occurrence of SPCs as acute myeloid leukemias (4.6 (2.1-10.4; p < 0.001)), Hodgkin lymphomas (extranodal) (74.3 (10.0-549.8; p < 0.001)) and Kaposi sarcomas (35.1 (12.1-101.4; p < 0.001)). These results may assist the development of diagnostic and clinical recommendations for BL/L.

SUBMITTER: Della Rocca AM

PROVIDER: S-EPMC8293230 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Burkitt Lymphoma International Prognostic Index.

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Prognostic Stratification of Patients with Burkitt Lymphoma Using Serum β2-microglobulin Levels.

Project description:PurposeWe 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 methodsA 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).ResultsThe 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.ConclusionSerum 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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