Published in:
Open Access
01-05-2022 | Glioblastoma | Original Article
Chasing a rarity: a retrospective single-center evaluation of prognostic factors in primary gliosarcoma
Authors:
Cas S. Dejonckheere, Alexander M. C. Böhner, David Koch, Leonard C. Schmeel, Ulrich Herrlinger, Hartmut Vatter, Matthias Schneider, Patrick Schuss, Frank A. Giordano, Mümtaz A. Köksal
Published in:
Strahlentherapie und Onkologie
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Issue 5/2022
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Abstract
Background and purpose
Primary gliosarcoma (GS) is a rare variant of IDH-wildtype glioblastoma multiforme. We performed a single-center analysis to identify prognostic factors.
Patients and methods
We analyzed the records of 26 patients newly diagnosed with primary WHO grade IV GS. Factors of interest were clinical and treatment data, as well as molecular markers, time to recurrence, and time to death.
Results
Median follow-up was 9 months (range 5–21 months). Gross total resection did not lead to improved survival, most likely due to the relatively small sample size. Low symptom burden at the time of diagnosis was associated with longer PFS (P = 0.023) and OS (P = 0.018). Median OS in the entire cohort was 12 months. Neither MGMT promoter hypermethylation nor adjuvant temozolomide therapy influenced survival, consistent with some previous reports.
Conclusion
In this retrospective study, patients exhibiting low symptom burden at diagnosis showed improved survival. None of the other factors analyzed were associated with an altered outcome.