Brain and behavior · 2025
Risk Factors and Prognostic Implications of Tumor-Related Epilepsy in Diffuse Glioma Patients: A Real-World Multicenter Study.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод в очереди
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Xiao Yao, Nie Zhuang, Huang Jinsha, Zhao Jie, Dong Chengjun, Zou Yan, Li Zikai, Yan Bingqing, Hu Yue, Yang Fan, Lee Jong Woo, Lin Alexander P, Tobochnik Steven, Zhou Min, Lei Ziqiao
Аннотация
PURPOSE: The relevance of tumor-related epilepsy (TRE) to glioma survival is controversial. This study aimed to assess the risk factors and prognostic impact of TRE in adult patients with diffuse gliomas by integrating clinical, radiological, and molecular data.
METHODS: This multicenter retrospective study included 1036 adult patients with diffuse gliomas from local hospitals and the POLA Network. Patients were categorized into three prognostic groups: lower-grade oligodendroglioma/astrocytoma (OD/AC, II-III, IDH-MT), not otherwise specified or not elsewhere classified (NOS/NEC, II-III, IDH-WT), and high-grade gliomas (HGG, IV). Clinico-radiological, molecular, and therapeutic factors were analyzed using univariate and multivariate logistic regression, with the Cox proportional hazards model applied to identify independent prognostic factors for progression-free survival (PFS) and overall survival (OS).
RESULTS: TRE occurred in 44.4% of OD/AC patients, 25.8% of NOS/NEC patients, and 16.5% of HGG patients. Multivariate analysis identified age as the only significant independent correlate of TRE in the OD/AC group (OR = 0.961; p = 0.004), while the absence of deep structure involvement was independently associated with TRE in the NOS/NEC and HGG groups. In univariate analysis, the presence of TRE was associated with longer PFS and OS across all groups, particularly in the NOS/NEC group, where patients with TRE had a median PFS of 35.2 months compared to 13.6 months in those without TRE (p = 0.02), but was not a significant predictor in multivariate analyses. TRE was the only factor significantly associated with maintaining histological grade at recurrence (HR = 0.094; p = 0.005).
CONCLUSION: TRE was not a strong independent prognostic factor after controlling for clinical and molecular tumor features, suggesting that the prognostic relevance of TRE is likely driven by underlying glioma biology and other associated clinical factors.
METHODS: This multicenter retrospective study included 1036 adult patients with diffuse gliomas from local hospitals and the POLA Network. Patients were categorized into three prognostic groups: lower-grade oligodendroglioma/astrocytoma (OD/AC, II-III, IDH-MT), not otherwise specified or not elsewhere classified (NOS/NEC, II-III, IDH-WT), and high-grade gliomas (HGG, IV). Clinico-radiological, molecular, and therapeutic factors were analyzed using univariate and multivariate logistic regression, with the Cox proportional hazards model applied to identify independent prognostic factors for progression-free survival (PFS) and overall survival (OS).
RESULTS: TRE occurred in 44.4% of OD/AC patients, 25.8% of NOS/NEC patients, and 16.5% of HGG patients. Multivariate analysis identified age as the only significant independent correlate of TRE in the OD/AC group (OR = 0.961; p = 0.004), while the absence of deep structure involvement was independently associated with TRE in the NOS/NEC and HGG groups. In univariate analysis, the presence of TRE was associated with longer PFS and OS across all groups, particularly in the NOS/NEC group, where patients with TRE had a median PFS of 35.2 months compared to 13.6 months in those without TRE (p = 0.02), but was not a significant predictor in multivariate analyses. TRE was the only factor significantly associated with maintaining histological grade at recurrence (HR = 0.094; p = 0.005).
CONCLUSION: TRE was not a strong independent prognostic factor after controlling for clinical and molecular tumor features, suggesting that the prognostic relevance of TRE is likely driven by underlying glioma biology and other associated clinical factors.