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. 2014 Apr;117(2):365-72.
doi: 10.1007/s11060-014-1397-2. Epub 2014 Feb 15.

Benefit of tumor resection for recurrent glioblastoma

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Benefit of tumor resection for recurrent glioblastoma

Johanna Quick et al. J Neurooncol. 2014 Apr.

Abstract

In the treatment of glioblastoma (GBM) the impact of radical tumor resection as first line therapy is beyond controversy. The significance of a second resection in case of tumor-recurrence remains unclear and is an issue of debate. Since GBMs always recur, it is important to determine whether or not patients will benefit from repeat surgery. We performed a retrospective analysis of our prospectively collected database and evaluated all re-resected patients with primary GBM who underwent second surgery during a 3 years period. All patients underwent early postoperative magnetic resonance imaging. We determined survival after re-resection with regard to possible prognostic factors using Kaplan-Meier estimates and Cox regression analyses. Forty patients were included in this study. Median age was 58 years and median KPS score was 80. Average tumor volume was 5.5 cm(3). A radiologically confirmed complete resection was achieved in 29 patients (72.5 %). Median follow-up was 18.8 months, and median survival after re-resection was 13.5 months. Only complete removal of contrast enhancing tumor was significantly correlated with survival after re-resection according to multivariate analysis. There was a statistical trend for KPS score influencing survival. In contrast, time between first diagnosis and tumor-recurrence, tumor volume at recurrence, MGMT status and MSM score were not significantly correlated with survival after second surgery. In the event of tumor recurrence, patients in good clinical condition with recurrent GBM amenable to complete resection should thus not be withheld second surgery as a treatment option.

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