HGG-14. TREATMENT AND PROGNOSTIC FACTORS FOR PEDIATRIC GLIOBLASTOMAS--THE 10 YEARS EXPERIENCE FROM ONE SINGLE CENTER

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Abstract OBJECTIVE We retrospectively analyzed the clinical features of pediatric glioblastoma patients in our center in the past 10 years. METHODS From November 2009 to December 2018, patients with glioblastoma under 18 years were admitted to Guangdong Sanjiu Brain Hospital. Clinical and pathological features were summarized, and the curative effect was evaluated. RESULTS A total of 31 pediatric patients were enrolled. The median age is 13.8 years (range 0.8–18), including 19 males and 12 females. To Sep, 2019, the median follow-up time was 18 months(Range 4–80 months). Among them,2 were lost to follow-up,13 died, 16 still survived, and the longest survivor survived for 80 months. The median survival time was 16.4 months, the 2-year survival rate was 38%. In the prognostic factor analysis, the median survival time of patients with surgical resection ≥90% was 18 months (95% CI 15.9–20 months), and for children with resection 90% was 11 months (95% CI 9.9–12 months), P=0.027, with significantly statistically difference. Multivariate analysis showed that tumor resection rate was an independent prognostic factor for survival. CONCLUSION The prognosis of pediatric glioblastoma is still dismal. This study demonstrates that prognosis of such patients with GTR or near GTR is better.

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