Influence of glioblastoma contact with the subventricular zone on survival and recurrence patterns
Clin. transl. oncol. (Print)
; 23(3): 554-564, mar. 2021. ilus
Article
en En
| IBECS
| ID: ibc-220890
Biblioteca responsable:
ES1.1
Ubicación: ES15.1 - BNCS
ABSTRACT
Background There is growing evidence that the subventricular zone (SVZ) may be involved in both the initiation and progression of glioblastoma (GB). We aimed to assess tumor proximity to the SVZ as a potential prognostic factor in GB. Method Retrospective study of 133 patients diagnosed with primary GB who underwent surgery followed by temozolomide-based chemoradiation between 2010 and 2016. All lesions were classified according to their anatomic relation with the SVZ. We determined the effect of tumor contact with the SVZ on progression-free survival (PFS), overall survival (OS), type, and patterns of recurrence. Results At a median follow-up of 18.6 months (95% CI 15.921.2), PFS and OS were 7.5 (95% CI 6.78.3) and 13.9 (95% CI 10.916.9) months, respectively. On the univariate analyses, initial contact with the SVZ was a factor for poor prognosis for both PFS (6.1 vs. 8.7 months; p = 0.006) and OS (10.6 vs. 17.9 months; p = 0.037). On the multivariate analysis, tumor contact with the SVZ remained statistically significant for PFS, but not OS. Patients with SVZ-contacting tumors presented a higher rate of aggressive clinical progression (30.9% vs. 11.3%; p = 0.007) and contralateral relapse patterns (23.4% vs. 9.1%; p = 0.048). Conclusions Our results suggest that glioblastoma contact with the SVZ appears to be an independent prognostic factor for poor PFS. The presence of an SVZ-contacting tumor was associated with more aggressive recurrences and a higher rate of contralateral relapses. These findings suggest that this variable may be a new prognostic factor in glioblastoma (AU)
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Colección:
06-national
/
ES
Base de datos:
IBECS
Asunto principal:
Neoplasias Encefálicas
/
Glioblastoma
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Ventrículos Laterales
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Invasividad Neoplásica
Límite:
Humans
Idioma:
En
Revista:
Clin. transl. oncol. (Print)
Año:
2021
Tipo del documento:
Article